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WO2013039315A2 - Structure de segment présentant des fils verticaux et des clavettes de cisaillement horizontales et procédé de construction d'un tunnel de blindage utilisant celle-ci - Google Patents

Structure de segment présentant des fils verticaux et des clavettes de cisaillement horizontales et procédé de construction d'un tunnel de blindage utilisant celle-ci Download PDF

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Publication number
WO2013039315A2
WO2013039315A2 PCT/KR2012/007280 KR2012007280W WO2013039315A2 WO 2013039315 A2 WO2013039315 A2 WO 2013039315A2 KR 2012007280 W KR2012007280 W KR 2012007280W WO 2013039315 A2 WO2013039315 A2 WO 2013039315A2
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WO
WIPO (PCT)
Prior art keywords
row
segment
strand
fixing
column
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2012/007280
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English (en)
Korean (ko)
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WO2013039315A3 (fr
Inventor
마상준
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CMER CO LTD
Korea Institute of Civil Engineering and Building Technology KICT
Original Assignee
CMER CO LTD
Korea Institute of Construction Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CMER CO LTD, Korea Institute of Construction Technology filed Critical CMER CO LTD
Priority to CN201280044802.1A priority Critical patent/CN103797216B/zh
Publication of WO2013039315A2 publication Critical patent/WO2013039315A2/fr
Publication of WO2013039315A3 publication Critical patent/WO2013039315A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04—Lining with building materials
    • E21D11/08—Lining with building materials with preformed concrete slabs
    • E21D11/083—Methods or devices for joining adjacent concrete segments
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04—Lining with building materials
    • E21D11/08—Lining with building materials with preformed concrete slabs

Definitions

  • the present invention relates to a segment structure having a longitudinal strand and a transverse shear key and a method for constructing a shield tunnel using the same. More specifically, the present invention relates to a segment structure having two center passages and two end passages. Arrange sequentially in each row adjacently in the longitudinal direction, with four rows of longitudinal segments as one unit to insert, tension, and anchor the strands, and to ensure that only one strand is anchored in each segment so that only those segments are fixed and fixed.
  • the remaining three strands are settled and fixed sequentially in the same way as the segments located in the other rows through the passageway, thereby forming a segment-based reaction wall through which all four strands penetrate, and at the same time structurally stable foundation reaction wall Segment of different columns by the remaining three strands Fixation and fixation are facilitated sequentially, and by repeating the above process, fixation and fixation of the segment foundation reaction wall and thus other columns is sequentially performed with excavation.
  • the assembly of the segments is efficient and economical, which is a useful invention for shield tunnels.
  • the shield tunnel method is a method of assembling and dismantling segments by a shield tunnel drilling device and at the same time assembling a supporter.
  • the shield tunnel method is excavated by the rotation of the tip cutter head of the shield tunnel excavator, and the soil produced by the excavation is disposed of and discharged out through a screw conveyor provided in the shield tunnel excavator. It is a process consisting of a series of systems for assembling segments that are supported by space.
  • Shield tunnel excavators are generally well known.
  • the shield tunnel excavator 10 is largely composed of a cutter head 16, a head portion 22, a shield body 12, and a tail portion 24.
  • An opening 86 is formed at an upper portion of the partition 30, and a lid 88 hinged to the partition 30 is disposed at the opening 86.
  • the lid 88 is connected to the piston rod 92 of the cylinder 90 attached to the diaphragm 32 via the arm 94.
  • the lid 88 normally closes the opening portion 86 by the cylinder 90, but the earth pressure applied to the space portion between the partition 30 and the cutter head 16 is set in the cylinder 90. When the pressure is exceeded, the opening 86 is opened to be driven toward the diaphragm 32 against the pressure of the cylinder 90 so as to introduce the sand into the grinding chamber 28.
  • the rotor 96 and the stator 98 which comprise the crusher which crushes the comparatively large gravel which entered the grinding chamber 28 are arrange
  • the rotor 96 is attached to the rotation shaft 68, and the stator 98 is attached to the partition wall 30 below the rotor 96.
  • High pressure water is also sent to the grinding chamber (28) via the feed pipe (100), and the supplied water is discharged to the rear of the shield body (12) via the discharge pipe (102) together with the soil in the grinding chamber (28). do.
  • the propulsion jacks 14 of the drilling device 10 have the piston rods 46 and 48 being retracted into the cylinder 40.
  • the excavator 10 receives the propulsion force of the shield body 12 by the propulsion jacks 14, and each motor 70 of the rotating mechanism 18 is rotated, and the rotation of each motor 70 is reduced.
  • the cutter head 16 is rotated by being transmitted to the face plate 58 via the 72, the tooth 74, the tooth 76 and the rotation shaft 68. It is pushed while being excavated by the rotation of the cutter head 16.
  • the excavated earth and sand enters the space in front of the partition wall 30, and then enters into the grinding chamber 28 via the opening 86 of the partition wall 30 and then discharges the discharge pipe 102 from the grinding chamber 28. It is discharged with water via diesel.
  • the segment 104 is disposed in the space formed behind the shield body 12.
  • Circular shield support ball (10) consists of seven segments and is fixed by the key (K) segment.
  • each segment Four sides of each segment have a drainage flow path 16 and a drainage structure provided with a water stop 18 before and after the drainage flow path 16.
  • a water stop 18 before and after the drainage flow path 16.
  • Patent No. 10-0936471 is a structure having a cross-sectional joint where all the end joints of 7 segments meet in one plane, even though the permeation prevention and treatment are perfectly achieved by the drainage structure. Since there is no longitudinal binding structure (e.g., steel wire structure) to connect and bind, there is a problem that the cross-section joint is easily shifted up and down even by the biasing caused by the ground. The impact of the earthquake is greater and more serious than the problem of partial pressure. Absolute preparations for earthquakes are required. Legally mandatory seismic design is considered to reflect the seriousness of this problem.
  • longitudinal binding structure e.g., steel wire structure
  • Shear stress and stranded wires are formed by forming shear keys in the transverse direction of each segment, arranging segments in each row in a zigzag shape, and arranging strands to form segment-based reaction walls.
  • the overlap stiffness is increased to provide a rigid segment structure with high durability against earthquakes, etc.
  • the configuration of the present invention is as follows. (See Figs. 4, 5, 6, and 7)
  • two center passages (10) and two end passages (20) are formed at right angles to the cross-section joint, but the two center passages (10) are provided with stranded wire passages (F3, F4) and strands. While the fixing units G1 and G2 are formed, the strand wire fixing units G1 and G2 are located in the direction of the tunnel excavation, and the two end passages 20 include the strand wire inserting and fixing space portions E1 and E2.
  • segment structure having a longitudinal strand and a transverse shear key.
  • the strand anchoring unit G1, G2 has a conical hole corresponding to the tip male cone of the strand, and the strand insertion / fixing space portions E1, E2 have a space portion corresponding to the trailing edge of the strand.
  • a segment structure having a directional strand and a transverse shear key.
  • the shield tunnel of the present invention has a circular cross section as shown in FIG.
  • the number of segments forming a circular cross section is an odd number. Seven or five are preferred.
  • the odd columns are arranged in the same position, and the even columns of the second column, the second column, and the sixth column are located in the center line of the A segment. That is, it is located down by 1/2 of A.
  • the K segment is assembled wedge-shaped as a key segment.
  • the K segment is the same as the basic segment A, but is formed shorter by Qd than Qa in the upper and lower Qa of the Q straight line.
  • the B and C segments are adjacent to the K segment and differ only from the basic segment A only in the adjacent plane.
  • the B segment is formed at the lower Qa of the Q straight line, and the C segment is longer than Qa at the upper Qa of the Q straight line.
  • Zigzag assembly of the segments is made by two adjacent segments at Qc and Pc.
  • two Qa are assembled adjacent to each other in Qc (see Fig. 9).
  • each segment is only slightly different from the K segment and the adjacent B and C segments, the segment is easy to manufacture because it is not significantly different from the basic A segment.
  • two center passages 10 and two end passages 20 are formed parallel to each other at right angles to the cross-sectional joint.
  • the two center passages 10 are close to the center line of the segment, and the two end passages 20 are symmetrical about the center line while being close to the ends. Since the strand should pass through the center passage 10 through the end passage 20, the distance between the center line and the end is the same.
  • the stranded wire starting from the insertion / fixed space portions E1 and E2 of the end passage 20 passes through the stranded wire anchoring portions G1 and G2 of the center passage 10 as shown in FIGS. 9 and 10. It is a zigzag connection structure settled at (G1, G2).
  • the closer the strand line fixing portions G1 and G2 of the center passage 10 are to the center line the more the eccentric bending moment due to earth pressure can be minimized, and a rigid structure of the segment can be formed.
  • the insertion / fixed space portions E1 and E2 are formed on one side of the end passage 20, and the strand wire fixing portions G1 and G2 are formed on one side of the center passage 10, and are located in opposite directions.
  • the strand wire insertion / fixing space portions E1 and E2 are spaces into which a new strand wire is inserted.
  • the water-expandable index member may be formed around the channel grooves in the center at all the contact portions where the segments and the segments contact each other.
  • Shear stress and strand due to shear key are formed by forming shear key in the transverse direction of each segment, and arranging the segments in each row in a zigzag form and forming a stranded reaction wall to form a segment-based reaction wall. Overlap stiffness is increased, resulting in a strong segment structure having high durability against earthquakes.
  • FIG. 1 is a cross-sectional state diagram of a shield tunnel excavator generally used.
  • FIG. 2 is a perspective view of a conventional shield segment
  • 3 is a circular cross-sectional view of the shield segment of the present invention.
  • FIG. 4 is a perspective view of the basic segment A of the present invention.
  • FIG. 5 is a perspective view of the B segment of the present invention.
  • FIG. 6 is a perspective view of the C segment of the present invention.
  • FIG. 7 is a perspective view of the K segment of the present invention.
  • FIG. 8 is an enlarged view of FIG.
  • FIG. 9 is a plan view showing a state in which the segments of the present invention are arranged in a zigzag form
  • FIG. 10 is a schematic diagram illustrating passage and settling of a stranded wire for an A1 segment in a fourth row in FIG.
  • FIG. 11 is a perspective view of a segment used in the conventional bolt method
  • FIG. 12 is a cross-sectional view of the joints of FIG. 11 joined by bolts.
  • the length of the strand is approximately equal to the length of four longitudinal segments arranged. This is because the stranded wire connects and fixes the four longitudinal segments in one unit.
  • One unit of the strand is a four segment row.
  • FIG. 10 is a schematic diagram of four strands for A1 in the fourth row in the segment assembly of FIG.
  • the stranded ship starting from the first row E2 in Fig. 10 is tensioned and settled in the fourth row G1.
  • Four strands pass through A1 in the fourth row.
  • the starting point and the fixation point of the four strands passing through A1 in the fourth column are different.
  • Settled in column A1 of the fourth row is the only stranded ship starting from the first row. This strand secures A1 in the fourth row first.
  • A1 of the fourth column is fixed in this manner, the strands start in the second row, the third row, and the fourth row.
  • the strands of the second, third, and fourth columns cannot pass through A1 of the fourth column. This is because it is virtually impossible to pass through the A2 in the fifth row, where the second strand of the strand is not fixed.
  • A1 of the fourth row must be fixed by the stranded ship starting from the first row E2, so that the stranded ship starting from the second row passes through A1 of the fourth row and is then settled in the fifth row. This is because the fifth column is possible only when the fourth column is fixed.
  • the fifth row and the fourth row may be fixed at the same time.
  • segment foundation reaction wall is made by the settlement of the strand, and then another foundation reaction wall is repeatedly formed in the direction of excavation while strengthening the foundation reaction wall by the three strands.
  • the four strands in the fourth row are the strands starting from the first row, the second row, the third row, and the fourth row.
  • the stranded ship that has been tensed and settled in the fourth row G1 starting from the first row E2 and has left the second row E2 is the stranded ship that has been tensed and settled in the fifth row G1.
  • the stranded wire is tensioned and settled in the third row E1 to the sixth row G2, and tensioned and settled in the fourth row E1 to the seventh row G2.
  • the strands inserted into the four throughways of the fourth row are the strands starting from the first row, the second row, the third row, and the fourth row, and at the same time relying on the fourth row, the fifth row, the sixth row, and the seventh row. It is a supporting member which fixes and fixes heat sequentially. It is for this reason that A1 in the fourth column is called the base reaction wall.
  • the shear stress of the shear key increases as the segments of each row are arranged in a zigzag, and the four strands are fixed and fixed only one for each row. Therefore, the overlapping stiffness of the strands increases, which is robust against earth pressure and earthquake. Construction is facilitated because it serves as a foundation reaction wall for the segments that are subsequently constructed while forming the structure.
  • the length of the strand is the length at which the tensile force is maximized while the loss is minimized.
  • the foundation reaction wall is not provided. This is inevitable because the segments and strands are assembled in a zigzag.
  • the conventional bolt method and the assembly method of the present invention will be performed in parallel. Since the conventional bolt method is a widely used method, only the outline thereof will be described briefly by Korean Patent Laid-Open Publication No. 10-2004-0026598.
  • the vertical bolt box 13 and the horizontal bolt box 12 are formed in the segment of JP-A-10-2004-0026598. Only the transverse bolt box 12 is connected in the transverse direction and the longitudinal bolt box 13 is omitted and the longitudinal strand line passage of the present invention is formed in the longitudinal direction. First, the lateral bolt box 12 is bolted, and then the stranded wire is tensioned and fixed to the longitudinal stranded wire passage in the same manner as above.
  • FIG. 12 shows a state in which the lateral bolt boxes 12 are in contact with each other and fixed as the fixing bolts 7 and the nuts 8.
  • the strands After passing through (F3-G1) in the fifth row, the strands are tensioned and fixed to the strand anchorage part G1 of each segment (A1, A2, B, K, C, A3, A4) located in the fifth row, While the segments are fixed, the strands are inserted into the strands and fixed space portions E1 of each segment in the order of the third row and the fourth row in the same manner as described above, and the sixth and seventh rows are placed in the sixth and seventh rows, respectively.
  • Segman The step of fixing the respective segments in the sixth column and the seventh column in tension and fixing the strand in the strand fixing portion G2 of (A1, A2, B, K, C, A3, A4);
  • Each segment of the fifth row is fixed by the insertion and tension of the strand in the second row, and each segment of the sixth row is fixed by the insertion and tension of the third row. Fixing each segment located in the eighth row in the same manner as the first row by inserting and stretching the fifth strand of the strand in the state where the segments are fixed;
  • Each segment fixing in column 9 is by inserting / tensioning in the sixth row, and each segment fixing in column 10 is fixed by inserting / tensioning in the seventh row.
  • the shield tunnel construction method using the segment structure having the directional strand and the transverse shear key is included.
  • a segment male having a directional strand and a transverse shear key characterized in that a male tip of the strand is fixed in a conical hole formed in the strand anchoring portions G1 and G2, and the rear fixed portion of the strand is fixed to the strand insertion / fixing space portions E1 and E2.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

La présente invention permet à chaque segment, dans lequel deux chemins traversants centraux et deux chemins traversants d'extrémité sont formés, d'être disposé séquentiellement et de manière adjacente à chaque colonne dans une direction verticale ; des segments horizontaux au niveau de quatre colonnes étant définis sous forme d'une seule unité de sorte que des fils y soient insérés, contraints, et montés ; un seul fil étant monté dans chaque segment de sorte que seul le segment correspondant soit monté et fixé ; les segments, par les trois autres fils, situés au niveau des autres colonnes étant séquentiellement montés et fixés de la même manière décrite plus haut par l'intermédiaire de chemins traversants, ce qui permet de former une paroi de réaction de fondation à travers laquelle passent les quatre fils, et dans un même temps, les segments au niveau des autres colonnes étant également séquentiellement et facilement montés et fixés par les trois fils restants par rapport à la paroi de réaction de fondation stabilisée structuralement ; et la paroi de réaction de fondation des segments étant formée et les autres colonnes selon la paroi de réaction de fondation étant séquentiellement montées et fixées l'une à l'autre par une opération de forage par répétition des étapes précédentes. L'invention permet ainsi, grâce à ces caractéristiques, que les segments soient assemblés d'une manière efficace et économique.
PCT/KR2012/007280 2011-09-15 2012-09-11 Structure de segment présentant des fils verticaux et des clavettes de cisaillement horizontales et procédé de construction d'un tunnel de blindage utilisant celle-ci Ceased WO2013039315A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201280044802.1A CN103797216B (zh) 2011-09-15 2012-09-11 具有纵向绞线和横向剪力键的管片结构以及使用所述结构来建造盾构隧道的方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020110092822A KR101470056B1 (ko) 2011-09-15 2011-09-15 종방향 강연선과 횡방향 전단키를 갖는 세그먼트 구조체
KR10-2011-0092822 2011-09-15

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WO2013039315A2 true WO2013039315A2 (fr) 2013-03-21
WO2013039315A3 WO2013039315A3 (fr) 2013-05-10

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107023306A (zh) * 2017-06-09 2017-08-08 中南大学 一种螺旋型装配式隧道结构及其施工方法
CN108915723A (zh) * 2018-07-27 2018-11-30 中铁第四勘察设计院集团有限公司 一种穿越垂直位错活动断层的盾构隧道管片结构
CN117145522A (zh) * 2023-10-27 2023-12-01 北京建工土木工程有限公司 一种机械法竖向开挖隧道泵房的水下封底方法

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KR20160075901A (ko) 2014-12-19 2016-06-30 한국건설기술연구원 아일랜드형 전단키 및 종방향 강연선을 구비한 실드터널용 세그먼트 구조체
CN105257321B (zh) * 2015-09-28 2018-05-04 上海市基础工程集团有限公司 盾构法隧道初期施工管片拉接装置及施工方法
CN105401957B (zh) * 2015-10-23 2017-07-28 济南轨道交通集团有限公司 一种盾构隧道管片双向预应力加固装置及施工方法
CN120798371B (zh) * 2025-09-12 2025-11-14 中铁第六勘察设计院集团有限公司 一种盾构隧道管片双向协同加固结构及施工方法

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JPH07252996A (ja) * 1994-03-11 1995-10-03 Nippon Steel Corp 鋼製セグメント
JP4707308B2 (ja) * 2002-07-26 2011-06-22 東京地下鉄株式会社 プレキャスト部材による壁体構造物およびその継手
JP2007270473A (ja) * 2006-03-31 2007-10-18 Ishikawajima Constr Materials Co Ltd 合成セグメントと合成セグメントの継手構造
KR100936471B1 (ko) * 2007-03-09 2010-01-13 한국건설기술연구원 배수 구조를 갖는 세그먼트에 의한 원형 지보공 구조체 및 이를 이용한 실드터널을 시공하는 방법
CN201301715Y (zh) * 2008-11-20 2009-09-02 中铁十六局集团有限公司 成型管片剪力销
CN201705365U (zh) * 2010-04-07 2011-01-12 中国石油天然气集团公司 一种盾构隧道贯通口管片结构
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107023306A (zh) * 2017-06-09 2017-08-08 中南大学 一种螺旋型装配式隧道结构及其施工方法
CN108915723A (zh) * 2018-07-27 2018-11-30 中铁第四勘察设计院集团有限公司 一种穿越垂直位错活动断层的盾构隧道管片结构
CN108915723B (zh) * 2018-07-27 2023-06-27 中铁第四勘察设计院集团有限公司 一种穿越垂直位错活动断层的盾构隧道管片结构
CN117145522A (zh) * 2023-10-27 2023-12-01 北京建工土木工程有限公司 一种机械法竖向开挖隧道泵房的水下封底方法
CN117145522B (zh) * 2023-10-27 2024-01-26 北京建工土木工程有限公司 一种机械法竖向开挖隧道泵房的水下封底方法

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Publication number Publication date
KR101470056B1 (ko) 2014-12-05
CN103797216B (zh) 2016-06-29
CN103797216A (zh) 2014-05-14
WO2013039315A3 (fr) 2013-05-10
KR20130029524A (ko) 2013-03-25

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