JP2018145650A - Connection method of embankment reinforcement used for retaining wall structure - Google Patents
Connection method of embankment reinforcement used for retaining wall structure Download PDFInfo
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Abstract
Description
本発明は、道路工事、河川工事、護岸工事、土地造成工事等における擁壁構造に使用する盛土内補強材に係り、更に詳細には、擁壁構造を補強するために使用される盛土内補強材の連結方法に係る。
The present invention relates to an embankment reinforcement material used for retaining wall structures in road construction, river construction, revetment construction, land preparation construction, etc., and more particularly, in-fill reinforcement used to reinforce retaining wall structures. It relates to the method of connecting materials.
道路工事、河川工事、護岸工事、土地造成工事等における擁壁構造を構築する際に、盛土内補強材を使用することにより擁壁構造を強化する工法が採用される場合がある。 When constructing a retaining wall structure for road construction, river construction, revetment construction, land preparation construction, etc., there is a case where a construction method is used to strengthen the retaining wall structure by using a reinforcing material in the embankment.
盛土内補強材を使用した擁壁構造の代表的な例として、安定処理土構造体と呼ばれている擁壁構造がある（特許文献１）。
この安定処理土構造体を構築する際に使用する表面部材単位４（後で述べる擁壁壁面材に相当する）は、例えば、鉄筋コンクリートからなる事前成形されたパネル状ブロックであり、補強ストリップ２（盛土内補強材に相当する）の端部が表面部材単位４に一体に接合されている。
As a typical example of the retaining wall structure using the reinforcing material in the embankment, there is a retaining wall structure called a stabilized soil structure (Patent Document 1).
A surface member unit 4 (corresponding to a retaining wall wall material described later) used when constructing this stabilized soil structure is, for example, a pre-formed panel block made of reinforced concrete, and a reinforcing strip 2 ( The end of the embankment is equivalent to the surface member unit 4.
この表面部材単位４を使用して安定処理土構造体を構築する手順は以下の通りである。 すなわち、
ａ）複数の表面部材単位４を立設配置し、表面部材単位４の背面側に所定の深さにわたって充填材（後で述べる盛土に相当する）を投入する。
ｂ）補強ストリップ２を配置する指定の高さに達するまで、充填材を投入し、充填材を漸次締め固める。
ｃ）締め固めた充填材の上に補強ストリップ２を敷く。
ｄ）設置された補強ストリップ２を覆うように充填材を投入し、この充填材を締め固める。
ｅ）一連の表面部材単位４に対して複数の高さでストリップを設置する場合には、ステップｂ）〜ｄ）を繰り返す。
ｆ）充填材が上部高さに達するまで、ステップａ）〜ｅ）を繰り返す。
The procedure for constructing a stabilized soil structure using this surface member unit 4 is as follows. That is,
a) A plurality of surface member units 4 are erected and charged with a filler (corresponding to embankment described later) over a predetermined depth on the back side of the surface member units 4.
b) Filling material is charged until the specified height for placing the reinforcing strip 2 is reached, and the packing material is gradually compacted.
c) Place the reinforcing strip 2 on the compacted filler.
d) Filling material is filled so as to cover the installed reinforcing strip 2, and the filling material is compacted.
e) Steps b) to d) are repeated when strips are installed at a plurality of heights for a series of surface member units 4.
f) Repeat steps a) to e) until the filler reaches the top height.
盛土内補強材を使用した擁壁構造の別の例として、補強土用壁面構造（特許文献２）がある。
この補強土用壁面構造では、壁面を構築する地盤１上に複数のＨ型鋼３を立設し、壁面パネル２（後で述べる擁壁壁面材に相当する）を隣り合うＨ型鋼３の間に装着する。 そして、補強材４（盛土内補強材に相当する）は、Ｈ型鋼３間に上下動自在に嵌め込まれた係合杵５に連結され、補強材４は、転圧された土砂９（後で述べる盛土に相当する）の中に埋め込まれるようになっている。
As another example of the retaining wall structure using the reinforcing material in the embankment, there is a wall surface structure for reinforcing earth (Patent Document 2).
In this wall surface structure for reinforced soil, a plurality of H-shaped steels 3 are erected on the ground 1 for constructing the wall surface, and a wall panel 2 (corresponding to a retaining wall surface material described later) is placed between adjacent H-shaped steels 3. Installing. The reinforcing material 4 (corresponding to the reinforcing material in the embankment) is connected to an engagement rod 5 that is fitted between the H-shaped steels 3 so as to be movable up and down. (It corresponds to the embankment described)).
従って、特許文献２が開示する補強土用壁面構造では、補強材４が壁面パネル２に直接連結されるのではなく、補強材４が係合杵５とＨ型鋼３を介して壁面パネル２に連結することにより、壁面構造の強度を高めるようになっている。
なお、この補強土用壁面構造を構築する手順は、前述した表面部材単位４を使用して安定処理土構造体を構築する手順とほぼ同様である。
Therefore, in the reinforcing earth wall structure disclosed in Patent Document 2, the reinforcing material 4 is not directly connected to the wall panel 2, but the reinforcing material 4 is connected to the wall panel 2 via the engagement rod 5 and the H-shaped steel 3. By connecting, the strength of the wall surface structure is increased.
The procedure for constructing the reinforcing soil wall surface structure is substantially the same as the procedure for constructing the stabilized soil structure using the surface member unit 4 described above.
盛土内補強材を使用した擁壁構造の更に別の例として、盛土用土留壁（特許文献３）がある。
この盛土用土留壁では、壁面を構築する地盤上に複数の杭９を立設し、壁体３には杭９を挿通する孔１２を形成すると共に、壁体３の接続側端面には切欠部１３を形成し、隣り合う壁体３の切欠部１３同士を組合わせて狭間１４が得られるようになっている。 複数の杭９に複数の壁体３を挿入して積み重ね、孔内に間詰めモルタルを充填して固定する。 また、壁体３の接続側端面に形成される狭間１４内に、盛土内補強材５の膨大端部１８を差し入れ、壁体３の接続側端間のスリットを介して盛土内補強材５を壁体３に対して上下動自在に連結している。
As yet another example of the retaining wall structure using the reinforcing material in the embankment, there is a retaining wall for embankment (Patent Document 3).
In this earth retaining wall for embankment, a plurality of piles 9 are erected on the ground for constructing the wall surface, and a hole 12 for inserting the pile 9 is formed in the wall body 3, and a notch is formed in the connection side end face of the wall body 3. A gap 14 is obtained by forming a portion 13 and combining the cutout portions 13 of the adjacent wall bodies 3. A plurality of wall bodies 3 are inserted into a plurality of piles 9 and stacked, and a filling mortar is filled in the hole and fixed. Further, the enormous end portion 18 of the embedding reinforcement 5 is inserted into the gap 14 formed on the connection side end face of the wall 3, and the embedding reinforcement 5 is inserted through the slit between the connection ends of the wall 3. It is connected to the wall 3 so as to be movable up and down.
従って、特許文献３が開示する盛土用土留壁でも、盛土内補強材５が壁体３に直接連結されるのではなく、壁体３に設けられた狭間１４と盛土内補強材５の膨大端部１８を介して盛土内補強材５を壁体３に連結することにより、盛土用土留壁の強度を高めるようになっている。
なお、この盛土用土留壁を構築する手順は、前述した表面部材単位４を使用して安定処理土構造体を構築する手順とほぼ同様である。
Therefore, even in the earth retaining wall for embankment disclosed in Patent Document 3, the in-fill reinforcement member 5 is not directly connected to the wall body 3, but the gap 14 provided in the wall body 3 and the enormous end of the in-fill reinforcement material 5 By connecting the reinforcing material 5 in the embankment to the wall body 3 through the portion 18, the strength of the earth retaining wall for embankment is increased.
The procedure for constructing the earth retaining wall for embankment is substantially the same as the procedure for constructing the stable treated soil structure using the surface member unit 4 described above.
以上、説明した盛土内補強材を使用した擁壁構造においては、壁面パネル等（上述したＨ型鋼や膨大端部を含む、擁壁面を構成する部材を意味する）と盛土内補強材を現場作業によって機械的に結合することが必要になる場合や、長い盛土内補強材を必要とする場合であって、擁壁構造の構築現場において２以上の盛土内補強材を連結することが必要になる場合がある。 このような場合、壁面パネル等に設けた結合部材に孔を設けると共に、盛土内補強材の結合端部に孔を設け、これらの孔の位置合わせを行なった上で、ボルトとナットによって壁面パネル等盛土内補強材を機械的に結合する方法が採用されている。 また、２以上の盛土内補強材を連結する方法としては、連結する盛土内補強材のそれぞれの端部に孔を設け、これらの孔の位置合わせを行なった上で、ボルトとナットによって盛土内補強材を機械的に結合する方法が採用されている。
As described above, in the retaining wall structure using the reinforcing material in the embankment described above, the wall panel or the like (meaning a member constituting the retaining wall surface including the H-shaped steel and the enormous end portion described above) and the reinforcing material in the embankment work on site. It is necessary to connect two or more reinforcements in the embankment at the construction site of the retaining wall structure when it is necessary to mechanically connect with each other or when a long reinforcement in the embankment is required. There is a case. In such a case, a hole is provided in the coupling member provided in the wall panel or the like, and a hole is provided in the coupling end portion of the reinforcing material in the embankment. After aligning these holes, the wall panel is formed by bolts and nuts. A method of mechanically joining the reinforcing materials in the equal embankment is adopted. In addition, as a method of connecting two or more in-fill reinforcements, holes are provided in the respective end portions of the in-fill reinforcements, and after aligning these holes, bolts and nuts are used for the inside of the fill. A method of mechanically joining the reinforcing material is employed.
しかしながら、ボルトとナットによって２以上の盛土内補強材を機械的に結合する場合や、壁面パネル等と盛土内補強材を機械的に結合する場合、一旦転圧した盛土面に、ナットまたはボルトの頭を配置しトルク掛けを行なう作業空間用の窪みを設けた上で２以上の盛土内補強材を締結することが必要であった。
また、２以上の盛土内補強材をボルト・ナットで締結した後、あるいは壁面パネル等と盛土内補強材をボルト・ナットで締結した後、盛土内補強材の締結位置（ボルト・ナットが配置される近傍）の盛土面に設けられた作業空間を埋戻し、更に埋め戻した部分を十分に転圧しておく必要があり、非常に手間がかかっていた（図１参照）。
すなわち、２以上の盛土内補強材を機械的に結合する際、あるいは壁面パネルと盛土内補強材を機械的に結合する際には、複雑で手間のかかる現場作業が発生するため、現場作業コストの低減を図る上で障害となっていた。
However, when two or more in-fill reinforcements are mechanically connected by bolts and nuts, or when a wall panel or the like is mechanically connected to the in-fill reinforcement, nuts or bolts are placed on the surface of the embankment once rolled. It was necessary to fasten two or more reinforcements in the embankment after providing a recess for the work space where the head is placed and torque is applied.
In addition, after fastening two or more in-fill reinforcements with bolts and nuts, or after fastening wall panels and other in-fill reinforcements with bolts and nuts, the fastening position of the in-fill reinforcements (bolts and nuts are arranged) It was necessary to backfill the work space provided on the embankment surface in the vicinity), and to sufficiently roll the backfilled portion, which was very time-consuming (see FIG. 1).
That is, when two or more reinforcements in the embankment are mechanically coupled, or when the wall panel and the reinforcement in the embankment are mechanically coupled, a complicated and time-consuming field work occurs, so the field work cost It was an obstacle to reduce the amount of waste.
本発明は、係る技術的背景を鑑みなされたものであり、擁壁構造の構築に当たって、現場作業コストの低減を図ることができる盛土内補強材の連結方法を提供することを課題とするものである。
The present invention has been made in view of such technical background, and it is an object of the present invention to provide a method for connecting a reinforcing material in an embankment that can reduce the work cost on site in constructing a retaining wall structure. is there.
上述した課題を解決するため、第１の観点にかかる発明では、擁壁構造に使用される盛土内補強材の連結方法であって、連結端部に第１の連結孔を設けた一の盛土内補強材を転圧した盛土面上に配置するステップと、連結端部に第２の連結孔を設けた他の盛土内補強材を転圧した盛土面上に配置するステップと、
一の盛土内補強材の第１の連結孔と他の盛土内補強材の第２の連結孔を位置合わせするステップと、位置合わせされた第１および第２の連結孔を貫通するように杭部材を打ち込む又は圧入するステップと、から成る構成の盛土内補強材の連結方法とした。
In order to solve the above-described problem, in the invention according to the first aspect, the embedding reinforcing material used in the retaining wall structure is a connecting method, and the embankment is provided with a first connecting hole at a connecting end. Arranging the inner reinforcing material on the rolled embankment surface, placing another reinforcing material in the embankment provided with the second connection hole on the connection end on the embankment surface rolled, and
A step of aligning the first connection hole of the reinforcement material in one embankment and the second connection hole of the reinforcement material in the other embankment, and a pile so as to penetrate the aligned first and second connection holes A step of driving or press-fitting a member, and a method for connecting the reinforcing materials in the embankment having the structure.
第２の観点にかかる発明では、擁壁構造に使用される盛土内補強材の連結方法であって、盛土内補強材との結合部材を備えた壁面材を設置するステップと、
壁面材の背面に盛土材料を投入し、転圧することにより、結合部材の高さに合せて盛土面を形成するステップと、結合部材に設けられた第３の連結孔の位置に、盛土内補強材の連結端部に設けた第２の連結孔の位置が合うように盛土内補強材を配置するステップと、位置合わせされた第２および第３の連結孔を貫通するように杭部材を打ち込む又は圧入するステップと、から成る構成の盛土内補強材の連結方法とした。
In the invention according to the second aspect, the method for connecting the reinforcing material in the embankment used in the retaining wall structure, the step of installing a wall surface material provided with a coupling member with the reinforcing material in the embankment;
Filling the back of the wall material with the embankment material and rolling it to form the embankment surface according to the height of the coupling member, and reinforcing the in-fill at the position of the third connecting hole provided in the coupling member Placing the reinforcing material in the embankment so that the position of the second connection hole provided at the connection end of the material is aligned, and driving the pile member so as to penetrate the aligned second and third connection holes Or it was set as the connection method of the reinforcement material in the embankment of the structure which consists of a press-fit step.
第３の観点にかかる発明では、擁壁構造に使用される盛土内補強材の連結方法であって、盛土内補強材との結合部材を備えた支持部材と、支持部材に保持された壁面材を設置するステップと、壁面材および支持部材の背面に盛土材料を投入し、転圧することにより、結合部材の高さに合せて盛土面を形成するステップと、結合部材に設けられた第３の連結孔の位置に、盛土内補強材の連結端部に設けた第２の連結孔の位置が合うように盛土内補強材を配置するステップと、位置合わせされた第２および第３の連結孔を貫通するように杭部材を打ち込む又は圧入するステップと、から成る構成の盛土内補強材の連結方法とした。 In the invention according to the third aspect, there is provided a method for connecting the reinforcing material in the embankment used for the retaining wall structure, the supporting member having a coupling member with the reinforcing material in the embankment, and the wall surface material held by the supporting member. , A step of forming a filling surface in accordance with the height of the coupling member by charging and rolling the wall material and the back surface of the supporting member, and a third member provided on the coupling member A step of arranging the reinforcing material in the embankment so that the position of the second connecting hole provided in the connecting end portion of the reinforcing material in the embankment matches the position of the connecting hole, and the aligned second and third connecting holes And a step of driving or press-fitting a pile member so as to penetrate through the embankment.
更に、第４の観点にかかる発明では、第１乃至第３のいずれかの観点にかかる発明の盛土内補強材の連結方法において、杭部材が、１の棒状部材を備えている構成の盛土内補強材の連結方法とした。 Furthermore, in the invention concerning the 4th viewpoint, in the connection method of the reinforcement material in an embankment of the invention concerning the 1st thru | or 3rd viewpoint, the pile member is in the embankment of the structure provided with one rod-shaped member. Reinforcing material connection method.
また、第５の観点にかかる発明では、第１乃至第３のいずれかの観点にかかる発明の盛土内補強材の連結方法において、杭部材が、複数の棒状部材を備えている構成の盛土内補強材の連結方法とした。 Moreover, in the invention concerning a 5th viewpoint, in the connection method of the reinforcing material in an embankment of the invention concerning the 1st thru | or 3rd viewpoint, the pile member is in the embankment of the structure provided with the several rod-shaped member. Reinforcing material connection method.
また、第６の観点にかかる発明では、第１乃至第５の観点にかかる発明のいずれかの盛土内補強材の連結方法において、盛土内補強材が帯状部材から構成されている盛土内補強材の連結方法とした。
Moreover, in the invention concerning a 6th viewpoint, in the connection method of the reinforcement material in an embankment in any one of the invention concerning the 1st thru | or 5th viewpoint, the reinforcement material in an embankment is comprised from the strip | belt-shaped member. It was set as the connection method.
本発明によれば、２以上の盛土内補強材を機械的に結合する際に、従来採用されていたボルトとナットによって２以上の盛土内補強材を機械的に結合する方法に代えて、連結する２つの盛土内補強材の端部に設けられたそれぞれの連結孔を貫通するように杭部材を打ち込む又は圧入することによって２以上の盛土内補強材を機械的に結合するようにした結果、擁壁構造の構築に当たって、現場作業コストの低減を図ることができる盛土内補強材の連結方法を提供することが可能となった。
According to the present invention, when two or more embankment reinforcements are mechanically coupled, instead of the conventionally employed method of mechanically coupling the two or more embankment reinforcements with bolts and nuts, a connection is made. As a result of mechanically coupling two or more in-fill reinforcements by driving or press-fitting a pile member so as to pass through the respective connection holes provided at the ends of the two in-fill reinforcements, In the construction of the retaining wall structure, it has become possible to provide a method for connecting reinforcing materials in the embankment that can reduce the work cost on site.
以下、図面を用いて本発明の実施形態について説明する。 なお、本発明が適用できるケースとして、２つの盛土内補強材２１、２２を連結する場合、壁面材１１と盛土内補強材２２を連結する場合、および壁面材１１を保持する支持部材１２と盛土内補強材２２を連結する場合があり、これらについて以下に説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, as a case to which the present invention can be applied, when connecting two reinforcing materials 21 and 22 in the embankment, connecting the wall material 11 and the reinforcing material 22 in the embankment, and the support member 12 holding the wall material 11 and the embankment The inner reinforcing material 22 may be connected, and these will be described below.
図２は、２つの盛土内補強材２１、２２を連結する場合の連結部近傍の状態を示したものである。
図２の（ａ）は、一の盛土内補強材２１の平面図を示したものであり、一の盛土内補強材２１の端部には第１の連結孔２１−１が設けてある。 また、図２の（ｂ）は、他の盛土内補強材２２の平面図を示したものであり、他の盛土内補強材２２の端部には第２の連結孔２２−１が設けてある。 更に、図２の（ｃ）は、一の盛土内補強材２１と他の盛土内補強材２２を杭部材３１によって結合した状態を示したものである。 なお、図２の（ｃ）では、盛土４１を省略して示してある。
FIG. 2 shows a state in the vicinity of the connecting portion when the two in-fill reinforcement members 21 and 22 are connected.
FIG. 2A shows a plan view of one embankment reinforcing material 21, and a first connecting hole 21-1 is provided at the end of the one embankment reinforcing material 21. FIG. 2B shows a plan view of another reinforcing material 22 in the embankment, and the second connecting hole 22-1 is provided at the end of the other reinforcing material 22 in the embankment. is there. Further, FIG. 2C shows a state in which one embankment reinforcing material 21 and another embankment reinforcing material 22 are connected by a pile member 31. In FIG. 2C, the embankment 41 is omitted.
盛土内補強材２１、２２は、擁壁構造が構築された後は、転圧された盛土４１の中に長く一方向に伸びて配置され、盛土４１と盛土内補強材２１、２２との摩擦力により、壁面材１１や支持部材１２を盛土側に固定させておくことにより、擁壁構造を安定化させる機能を果たしている。 盛土内補強材２１、２２の形状は特に限定されるものではないが、所定の長さを有する帯状、棒状の部材が使用される。 盛土内補強材２１、２２の材質についても特に限定されるものではないが、鉄鋼等の金属、コンクリート、織布、不織布、プラスチック、ＦＲＰ等の材料を用いることができる。 After the retaining wall structure is constructed, the embankment reinforcements 21 and 22 are arranged to extend in one direction long in the rolled embankment 41, and the friction between the embankment 41 and the reinforcements 21 and 22 in the embankment. The function of stabilizing the retaining wall structure is achieved by fixing the wall surface material 11 and the support member 12 to the embankment side by force. The shape of the embankment reinforcing materials 21 and 22 is not particularly limited, but strip-like or rod-like members having a predetermined length are used. The material of the embankment reinforcing materials 21 and 22 is not particularly limited, and materials such as metals such as steel, concrete, woven fabric, non-woven fabric, plastic, and FRP can be used.
盛土内補強材２１、２２の端部には、それぞれ第１の連結孔２１−１および第２の連結孔２２−１が設けられている。 この連結孔２１−１、２２−１の数は特に限定されるものではなく、必要に応じて１又は複数個設けることができる。 A first connection hole 21-1 and a second connection hole 22-1 are provided at the ends of the reinforcing materials 21 and 22 in the embankment, respectively. The number of the connection holes 21-1 and 22-1 is not particularly limited, and one or more connection holes can be provided as necessary.
杭部材３１には、盛土内補強材２１、２２の端部に設けられた連結孔２１−１、２２−１に挿入され、盛土４１内に打ち込まれる棒状部材３１−１が備えられており、この棒状部材３１−１に生じるせん断荷重を介して一の盛土内補強材２１から他の盛土内補強材２２に荷重が伝達されるようになっている。 The pile member 31 is provided with a rod-shaped member 31-1 inserted into the connection holes 21-1 and 22-1 provided at the ends of the embankment reinforcements 21 and 22 and driven into the embankment 41. A load is transmitted from one reinforcing material 21 in the embankment to the other reinforcing material 22 in the embankment through a shear load generated in the rod-shaped member 31-1.
図２に示す杭部材３１では、２つの棒状部材３１−１を備えた略Ｕ字状の杭部材３１が示されているが、これに限定されるものではなく、１の棒状部材３１−１を備えた略Ｔ字状の杭部材３１であっても良いし、３以上の棒状部材３１−１を備えた杭部材３１−１であっても良い。 また、棒状部材３１−１の断面形状は、円形、三角形、四角形、多角形等いずれの形状であっても良いし、棒状部材３１−１の先端部分は、盛土４１内へ打ち込み易くするために、尖頭形状等種々な形状を採用しても良い。 In the pile member 31 shown in FIG. 2, although the substantially U-shaped pile member 31 provided with the two rod-shaped members 31-1 is shown, it is not limited to this, One rod-shaped member 31-1 The substantially T-shaped pile member 31 provided with may be sufficient, and the pile member 31-1 provided with the 3 or more rod-shaped member 31-1 may be sufficient. Moreover, the cross-sectional shape of the rod-shaped member 31-1 may be any shape such as a circle, a triangle, a quadrangle, and a polygon, and the tip portion of the rod-shaped member 31-1 may be easily driven into the embankment 41. Various shapes such as a pointed shape may be employed.
杭部材３１の材料としては、鉄鋼等の金属、プラスチック、ＦＲＰ、セラミック等を使用することができるが、これらに限定されるものでもない。 As a material of the pile member 31, metals such as steel, plastics, FRP, ceramics and the like can be used, but are not limited thereto.
なお、盛土内補強材２１、２２は、一般的には、盛土４１の中にほぼ水平方向に伸びて配置されるため、主として、盛土内補強材２１、２２の長手方向に引張荷重が作用するのみで、盛土内補強材２１、２２の長手方向とは直角の方向にはほとんど荷重が作用しないため、杭部材３１の棒状部材３１−１が連結孔２１−１、２２−１から抜け出ることは無い。 したがって、棒状部材３１−１の長さは、少なくとも盛土内補強材２１、２２の全板厚より長ければよいが、棒状部材３１−１を盛土４１内へ打ち込み、それによるアンカー効果を得るために、棒状部材３１−１の長さを、盛土内補強材２１、２２の全板厚より十分長い長さに設定しても良い。 In addition, since the reinforcement members 21 and 22 in the embankment are generally extended in the horizontal direction in the embankment 41, a tensile load mainly acts on the longitudinal direction of the reinforcement members 21 and 22 in the embankment. Since the load hardly acts in the direction perpendicular to the longitudinal direction of the reinforcements 21 and 22 in the embankment, the rod-shaped member 31-1 of the pile member 31 is not pulled out of the connection holes 21-1 and 22-1. No. Therefore, the length of the bar-shaped member 31-1 should be at least longer than the total thickness of the embankment reinforcing materials 21 and 22, but in order to drive the bar-shaped member 31-1 into the bank 41 and thereby obtain an anchor effect. The length of the rod-shaped member 31-1 may be set to a length sufficiently longer than the total thickness of the embankment reinforcing materials 21 and 22.
また、上述したように、杭部材３１の棒状部材３１−１が連結孔２１−１、２２−１から抜け出ることは無いとしても、抜け出ることを確実に防止するために、図３に示すように、棒状部材３１−１（杭部材３１）の形状を様々な形状に設定しても良い。
例えば、２つある棒状部材３１−１の先端部分を広げるようにしたり、棒状部材３１−１を傾斜させて杭部材３１の本体に取り付けるようにしたり、棒状部材３１−１の途中に湾曲部を設けて、この湾曲部を盛土内補強材２１、２２に係合させるようにすること等によって、杭部材３１の棒状部材３１−１が連結孔２１−１、２２−１から抜けだすことを確実に防止することができる。
Further, as described above, as shown in FIG. 3, in order to reliably prevent the rod-shaped member 31-1 of the pile member 31 from coming out of the connection holes 21-1 and 22-1, as shown in FIG. 3. Moreover, you may set the shape of the rod-shaped member 31-1 (pile member 31) to various shapes.
For example, the tip of the two rod-shaped members 31-1 is widened, the rod-shaped member 31-1 is inclined and attached to the main body of the pile member 31, or a curved portion is provided in the middle of the rod-shaped member 31-1. It is ensured that the rod-shaped member 31-1 of the pile member 31 is pulled out from the connecting holes 21-1, 22-1 by providing and engaging the curved portion with the reinforcing materials 21, 22 in the embankment. Can be prevented.
次に、２つの盛土内補強材２１、２２を連結する作業の手順について説明する。
擁壁構造を構成する壁面材１１の背面に盛土４１を投入し、所定高さになるように盛土４１を転圧して平坦な盛土面を形成する。 この盛土面上に、他端が例えば壁面材１１に連結された一の盛土内補強材２１を配置すると共に、他端が壁面材１１とは反対側の盛土面上に伸びるようにして他の盛土内補強材２２を配置する。
Next, a procedure for connecting the two embankment reinforcements 21 and 22 will be described.
The embankment 41 is thrown into the back surface of the wall surface material 11 which comprises a retaining wall structure, and the embankment 41 is rolled and formed so that it may become predetermined height, and a flat embankment surface is formed. On the embankment surface, for example, one embankment reinforcing material 21 whose other end is connected to the wall surface material 11 is disposed, and the other end extends on the embankment surface opposite to the wall surface material 11. An embankment reinforcing material 22 is arranged.
そして、一の盛土内補強材２１の端部に設けられた第１の連結孔２１−１の位置に合うように、他の盛土内補強材２２の第２の連結孔２２−１を位置決めした後、位置合わせされた第１の連結孔２１−１と第２の連結孔２２−１を貫通するようにして杭部材３１を打ち込むことによって、２つの盛土内補強材２１、２２を連結する作業が完了する。 このとき、盛土内補強材２１の端部に設けられた全ての連結孔２１−１、２２−１に杭部材３１の棒状部材３１−１が挿入されている必要はなく、少なくとも１組の連結孔２１−１、２２−１に杭部材３１の１つの棒状部材３１−１が挿入されていれば良い。
また、長さの長い棒状部材３１−１とすることにより、棒状部材３１−１の先端部分を転圧した盛土４１の中へ深く打ち込むことができ、棒状部材３１−１と盛土４１によるアンカー効果により、盛土内補強材２１、２２をより堅固に一体化させることができる。
And the 2nd connection hole 22-1 of the other embankment reinforcement 22 was positioned so that the position of the 1st connection hole 21-1 provided in the edge part of the 1 embankment reinforcement 21 might be met. After that, the pile member 31 is driven so as to pass through the aligned first connection hole 21-1 and second connection hole 22-1, thereby connecting the two reinforcing materials 21 and 22 in the embankment. Is completed. At this time, it is not necessary that the rod-shaped members 31-1 of the pile members 31 are inserted into all the connection holes 21-1 and 22-1 provided at the end portions of the reinforcing material 21 in the embankment, and at least one set of connections. It is only necessary that one rod-shaped member 31-1 of the pile member 31 is inserted into the holes 21-1 and 22-1.
Moreover, by setting it as the rod-shaped member 31-1 with a long length, the tip part of the rod-shaped member 31-1 can be driven deeply into the embankment 41 which was crushed, and the anchor effect by the rod-shaped member 31-1 and the embankment 41 is achieved. Thereby, the reinforcement materials 21 and 22 in embankment can be integrated more firmly.
このようにして、一の盛土内補強材２１と他の盛土内補強材２２を連結したあと、必要に応じて、これらの盛土内補強材２１、２２の上に更に盛土４１を投入、転圧し、新たな盛土面を形成した上で、別の盛土内補強材２１、２２を設置し、連結する作業を順次繰り返すことができる。 In this way, after connecting one embankment reinforcing material 21 and another embankment reinforcing material 22, if necessary, the embankment 41 is further placed on these embankment reinforcing materials 21, 22, and pressed. Then, after forming a new embankment surface, it is possible to sequentially repeat the operation of installing and connecting the other embankment reinforcements 21 and 22.
このように、連結孔２１−１、２２−１を貫通するようにして杭部材３１の棒状部材３１−１を打ち込むことにより、一の盛土内補強材２１と他の盛土内補強材２２を機械的に強固に連結することが可能となり、擁壁構造を構築するに当たって擁壁構造の信頼性を確保しつつ、現場作業コストの低減を図ることができる。 Thus, by driving the rod-shaped member 31-1 of the pile member 31 so as to penetrate the connecting holes 21-1, 22-1, one reinforcing material 21 in the embankment and another reinforcing material 22 in the embankment are machined. Thus, it is possible to reduce the on-site work cost while ensuring the reliability of the retaining wall structure when constructing the retaining wall structure.
次に、壁面材１１と盛土内補強材２２を連結する場合について説明する。 図４は、壁面材１１と盛土内補強材２２を連結する場合の連結部近傍の状態を示したものである。
壁面材１１と盛土内補強材２２を連結する場合が、前述した２つの盛土内補強材２１、２２を連結する場合と異なるのは、一の盛土内補強材２１に代えて壁面材１１に備えられた結合部材１１−１が使用される点にある。
Next, the case where the wall surface material 11 and the embankment reinforcing material 22 are connected will be described. FIG. 4 shows a state in the vicinity of the connecting portion when the wall surface material 11 and the embankment reinforcing material 22 are connected.
The case where the wall material 11 and the reinforcing material 22 in the embankment are connected differs from the case where the two reinforcing materials 21 and 22 in the embankment described above are connected. The connecting member 11-1 is used.
壁面材１１は、特に限定されるものではないが、例えば、コンクリート製あるいは鉄筋コンクリート製のパネルであって、壁面材１１の背面には、１又は複数の結合部材１１−１が突出して備えられている。
この結合部材１１−１は、壁面材１１に機械的に結合されるか、或いは一体的に成形することにより壁面材１１に堅固に固定されている。 この結合部材１１−１には、盛土内補強材２２と結合するための連結孔１１−２が設けられている。
The wall surface material 11 is not particularly limited. For example, the wall surface material 11 is a panel made of concrete or reinforced concrete, and one or a plurality of coupling members 11-1 are provided on the back surface of the wall surface material 11. Yes.
The coupling member 11-1 is mechanically coupled to the wall surface material 11, or is firmly fixed to the wall surface material 11 by being integrally molded. The coupling member 11-1 is provided with a connection hole 11-2 for coupling to the embankment reinforcing material 22.
壁面材１１と盛土内補強材２２を連結する場合は、この結合部材１１−１を介して連結され、壁面材１１と盛土内補強材２２を連結する作業の手順は、前述した２つの盛土内補強材２１、２２を連結する場合の手順と同様である。 また、この連結方法においても、２つの盛土内補強材２１、２２を連結する場合と同様な効果を得ることができる。 When connecting the wall surface material 11 and the reinforcing material 22 in the embankment, it is connected via this coupling member 11-1, and the procedure of the operation | work which connects the wall surface material 11 and the reinforcing material 22 in the embankment is in the two above-mentioned embankments. This is the same as the procedure for connecting the reinforcing members 21 and 22. Moreover, also in this connection method, the same effect as the case where the two embankment reinforcement materials 21 and 22 are connected can be acquired.
次に、壁面材１１を保持する支持部材１２と盛土内補強材２２を連結する場合について説明する。 壁面材１１を保持する支持部材１２と盛土内補強材２２を連結する場合が、壁面材１１と盛土内補強材２２を連結する場合と異なるのは、壁面材１１に備えられた結合部材１１−１に代えて、壁面材１１の側端に配置され、壁面材１１を保持する支持部材１２に備えられた結合部材１２−１が使用される点にある。 Next, the case where the supporting member 12 holding the wall surface material 11 and the reinforcing material 22 in the embankment are connected will be described. The case where the supporting member 12 holding the wall surface material 11 and the reinforcing material 22 in the embankment are connected is different from the case where the wall material 11 and the reinforcing material 22 in the embankment are connected to each other. Instead of 1, the connecting member 12-1 provided on the support member 12 that is disposed at the side end of the wall surface material 11 and holds the wall surface material 11 is used.
ここで、壁面材１１を保持する支持部材１２と盛土内補強材２２を連結する場合とは、特許文献２や３によって開示された擁壁構造に該当するものであり、壁面材１１と盛土内補強材２２を直接連結することにより擁壁構造の構造強度を確保するものではなく、壁面材１１の側端に壁面材１１を保持するための支持部材１２を配置し、この支持部材１２に備えられた結合部材１２−１に盛土内補強材２２を連結することにより擁壁構造の構造強度を確保するものである。 図５は、支持部材１２（図５は、支持部材１２としてＨ型鋼を使用した例を示してある）と盛土内補強材２２を連結する場合の連結部近傍の状態を示したものである。 Here, the case where the supporting member 12 holding the wall surface material 11 and the reinforcing material 22 in the embankment are connected corresponds to the retaining wall structure disclosed in Patent Documents 2 and 3, and the wall material 11 and the embedding material in the embankment The reinforcing member 22 is not directly connected to ensure the structural strength of the retaining wall structure, but a supporting member 12 for holding the wall surface material 11 is disposed at the side end of the wall surface material 11, and the supporting member 12 is provided. The structural strength of the retaining wall structure is secured by connecting the reinforcing material 22 in the embankment to the obtained coupling member 12-1. FIG. 5 shows a state in the vicinity of the connecting portion when connecting the support member 12 (FIG. 5 shows an example using H-shaped steel as the support member 12) and the reinforcing material 22 in the embankment.
この結合部材１２−１は、前述した結合部材１１−１と同様な構成とすることができ、支持部材１２に溶接やボルト・ナット結合により機械的に結合されている。 なお、この結合部材１２−１は、必要に応じて、支持部材１２に対して上下にスライド可能に取り付けるようにしても良い。 The coupling member 12-1 can have the same configuration as the above-described coupling member 11-1, and is mechanically coupled to the support member 12 by welding or bolt / nut coupling. Note that the coupling member 12-1 may be attached to the support member 12 so as to be slidable up and down as needed.
壁面材１１を保持する支持部材１２と盛土内補強材２２を連結する場合、結合部材１２−１を介して連結され、その連結作業の手順は、前述した２つの盛土内補強材２１、２２を連結する場合の手順と同様である。 また、この連結方法においても、２つの盛土内補強材２１、２２を連結する場合と同様な効果を得ることができる。
When connecting the supporting member 12 holding the wall surface material 11 and the reinforcing material 22 in the embankment, they are connected via the coupling member 12-1, and the procedure of the connecting operation is the same as the above-mentioned two reinforcing materials 21 and 22 in the embankment. The procedure is the same as that for connection. Moreover, also in this connection method, the same effect as the case where the two embankment reinforcement materials 21 and 22 are connected can be acquired.
１１ 壁面材
１１−１ （壁面材に設けられた）結合部材
１１−２ （結合部材１１−１に設けられた）連結孔
１２ 支持部材
１２−１ （支持部材に設けられた）結合部材
１２−２ （結合部材１２−１に設けられた）連結孔
２１、２２ 盛土内補強材
２１−１、２２−１ 連結孔
３１ 杭部材
３１−１ 棒状部材
４１ 盛土
11 Wall member 11-1 Coupling member 11-2 (provided on the wall member) Connecting hole 12 (provided on the coupling member 11-1) Support member 12-1 Coupling member 12- (provided on the support member) 2 Connection holes 21 and 22 (provided in the coupling member 12-1) Reinforcing materials 21-1 and 22-1 in the embankment Connection hole 31 Pile member 31-1 Rod-shaped member 41 Embankment
Claims (6)
連結端部に第１の連結孔を設けた一の盛土内補強材を転圧した盛土面上に配置するステップと、
連結端部に第２の連結孔を設けた他の盛土内補強材を転圧した盛土面上に配置するステップと、
一の盛土内補強材の第１の連結孔と他の盛土内補強材の第２の連結孔を位置合わせするステップと、
位置合わせされた第１および第２の連結孔を貫通するように杭部材を打ち込む又は圧入するステップと、
から成ることを特徴とする盛土内補強材の連結方法。
A method for connecting reinforcements in embankments used for retaining wall structure,
A step of arranging a reinforcing material in one embankment provided with a first coupling hole at a coupling end portion on the embankment surface which has been rolled;
A step of arranging the other reinforcing material in the embankment provided with the second coupling hole in the coupling end portion on the embankment surface that has been rolled;
Aligning the first connecting hole of one reinforcing material in a bank and the second connecting hole of another reinforcing material in a bank;
Driving or press-fitting a pile member through the aligned first and second connecting holes;
A connection method for reinforcing material in a fill, characterized by comprising:
盛土内補強材との結合部材を備えた壁面材を設置するステップと、
壁面材の背面に盛土材料を投入し、転圧することにより、結合部材の高さに合せて盛土面を形成するステップと、
結合部材に設けられた第３の連結孔の位置に、盛土内補強材の連結端部に設けた第２の連結孔の位置が合うように盛土内補強材を配置するステップと、
位置合わせされた第２および第３の連結孔を貫通するように杭部材を打ち込む又は圧入するステップと、
から成ることを特徴とする盛土内補強材の連結方法。
A method for connecting reinforcements in embankments used for retaining wall structure,
Installing a wall material provided with a connecting member with a reinforcing material in the embankment;
A step of forming a filling surface in accordance with the height of the coupling member by charging and rolling the filling material on the back surface of the wall material,
Arranging the reinforcing material in the embankment so that the position of the second connecting hole provided in the connecting end portion of the reinforcing material in the embankment matches the position of the third connecting hole provided in the coupling member;
Driving or press-fitting the pile member through the aligned second and third connecting holes;
A connection method for reinforcing material in a fill, characterized by comprising:
盛土内補強材との結合部材を備えた支持部材と、支持部材に保持された壁面材を設置するステップと、
壁面材および支持部材の背面に盛土材料を投入し、転圧することにより、結合部材の高さに合せて盛土面を形成するステップと、
結合部材に設けられた第３の連結孔の位置に、盛土内補強材の連結端部に設けた第２の連結孔の位置が合うように盛土内補強材を配置するステップと、
位置合わせされた第２および第３の連結孔を貫通するように杭部材を打ち込む又は圧入するステップと、
から成ることを特徴とする盛土内補強材の連結方法。
A method for connecting reinforcements in embankments used for retaining wall structure,
A support member having a coupling member with the embankment reinforcing material, and a step of installing a wall material held by the support member;
A step of forming a fill surface in accordance with the height of the coupling member by charging and rolling the wall material and the back surface of the support member;
Arranging the reinforcing material in the embankment so that the position of the second connecting hole provided in the connecting end portion of the reinforcing material in the embankment matches the position of the third connecting hole provided in the coupling member;
Driving or press-fitting the pile member through the aligned second and third connecting holes;
A connection method for reinforcing material in a fill, characterized by comprising:
前記杭部材が、１の棒状部材を備えていることを特徴とする盛土内補強材の連結方法。
In the connection method of the embankment reinforcement in any one of Claims 1 thru | or 3,
The pile member is provided with one rod-shaped member, and the connecting method of the reinforcing material in an embankment characterized by the above-mentioned.
前記杭部材が、複数の棒状部材を備えていることを特徴とする盛土内補強材の連結方法。
In the connection method of the embankment reinforcing material in any one of Claims 1 thru | or 3,
The pile member is provided with a plurality of rod-shaped members, and a method for connecting reinforcing materials in an embankment.
前記盛土内補強材が帯状部材から構成されていることを特徴とする盛土内補強材の連結方法。 In the connection method of the embankment reinforcement in any one of Claims 1 thru | or 5,
The method for connecting embankment reinforcing materials, wherein the embankment reinforcing materials are constituted by strip-shaped members.
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| JPS6183722A (en) * | 1984-09-28 | 1986-04-28 | Kyokado Eng Co Ltd | Wall surface structure of sheathing structure |
| JPH09302665A (en) * | 1996-05-14 | 1997-11-25 | K R I Engineers Kk | Construction method for banking reinforced earth wall for constructing vertical wall surface with sheet pile as wall surface material |
| JP2003129423A (en) * | 2001-10-19 | 2003-05-08 | Purotekku Engineering:Kk | Reinforced embankment and its construction method |
| US20100092249A1 (en) * | 2007-03-05 | 2010-04-15 | Terre Armee Internationale | Ground reinforced structure and reinforcement members for the construction thereof |
| JP2015014163A (en) * | 2013-07-08 | 2015-01-22 | 大成建設株式会社 | Greening slope structure and construction method for the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6183722A (en) * | 1984-09-28 | 1986-04-28 | Kyokado Eng Co Ltd | Wall surface structure of sheathing structure |
| JPH09302665A (en) * | 1996-05-14 | 1997-11-25 | K R I Engineers Kk | Construction method for banking reinforced earth wall for constructing vertical wall surface with sheet pile as wall surface material |
| JP2003129423A (en) * | 2001-10-19 | 2003-05-08 | Purotekku Engineering:Kk | Reinforced embankment and its construction method |
| US20100092249A1 (en) * | 2007-03-05 | 2010-04-15 | Terre Armee Internationale | Ground reinforced structure and reinforcement members for the construction thereof |
| JP2015014163A (en) * | 2013-07-08 | 2015-01-22 | 大成建設株式会社 | Greening slope structure and construction method for the same |
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