CN111877082A - Cement concrete pavement expansion joint filling seepage-proofing device and seepage-proofing method thereof - Google Patents

Abstract

The invention provides an anti-seepage device for filling expansion joints of cement concrete pavement and an anti-seepage method thereof. A plurality of dowel rods are laterally arranged below the expansion joints between two cement concrete pavement slabs, and one end of the dowel rods is sleeved with The casing, one end of the dowel rod is fixed in the cement concrete pavement, the other end slides in the casing, a caulking plate is set in the expansion joint, a V-shaped aluminum alloy plate is installed above the caulking plate, and the two wings of the V-shaped aluminum alloy plate are installed It is fixedly connected with the cement concrete pavement panels on both sides, and the joint filler is poured into the V-shaped aluminum alloy plate. The invention solves the problems of poor durability, short service time and poor anti-seepage performance of the existing cement concrete pavement caulking material. The invention aims to increase the deformation capacity of the expansion joint structure and enhance the impermeability effect by adding a V-shaped aluminum alloy plate to the expansion joint of the cement concrete pavement. It can improve the durability of the joint material.

Description

A kind of anti-seepage device for filling expansion joints of cement concrete pavement and anti-seepage method thereof

technical field

The invention relates to an anti-seepage device for filling expansion joints of cement concrete pavement and an anti-seepage method thereof, belonging to the technical field of civil engineering devices.

Background technique

Cement pavement has the advantages of high strength, good stability, long service life, etc. It is one of the main types of pavement in my country. It is mainly used for highways, urban roads, airport runways, and is also widely used in hardened ground in chemical plant areas. In order to effectively control the expansion, warpage and temperature stress of the cement pavement and reduce the damage to the pavement caused by expansion and warpage, it is necessary to set joints (including expansion joints, shrinkage joints, etc.) on the pavement structure, and use joint filling materials. The joints are sealed to maintain the integrity, smoothness and water tightness of the pavement from the structure, and improve the durability of the cement pavement.

The joint is an important part of the cement pavement, and it is also the weakest part. The failure and damage of the filling material at the joint is an important factor leading to the damage of the cement pavement. In the chemical plant area with complex environment, the caulking material is affected by factors such as traffic load, temperature, humidity, chemical corrosion and other factors during the use process, resulting in the rapid aging of the caulking material, cracks or damage, resulting in the failure and damage of the caulking material. For the chemical plant area, the failure of the cement concrete pavement joints, especially the joint fillers at the expansion joints, will cause chemical raw materials and waste liquids to penetrate into the soil through the expansion joints, causing irreversible damage to the natural environment. Therefore, in the pavement construction of chemical plants, it is not only required that the filling materials at the expansion joints cannot fail or be damaged, but also require no leakage.

At present, the cement concrete pavement expansion joints in the chemical plant area adopt the traditional caulking structure. Under the complex environment of the chemical plant, it is still prone to the phenomenon of rapid reduction of deformation capacity, corrosion failure and other phenomena, which in turn cause chemical products to penetrate into the soil and pollute the soil and water sources. Although the joint filler is continuously improved, the cost is relatively high, and the improvement effect is not significant.

SUMMARY OF THE INVENTION

In order to solve the problems that the existing cement concrete pavement joint filling materials have poor durability, short service time, and cannot effectively prevent the infiltration of harmful substances on the pavement into the soil, the invention proposes a cement concrete pavement expansion joint filling anti-seepage device and its anti-seepage method. The purpose is to increase the V-shaped aluminum alloy plate in the expansion joint of the cement concrete pavement to improve the deformation capacity of the expansion joint structure and enhance the impermeability effect. It can improve the durability of the joint material.

The present invention proposes an anti-seepage device for filling expansion joints of cement concrete pavement, comprising a joint filler 1, a V-shaped aluminum alloy plate 2, a joint filling plate 3, a number of dowel rods 4 and a casing 8. A number of dowel rods 4 are laterally arranged below the expansion joints between the panels 9. One end of the dowel rods 4 is covered with a casing 8, the other end is fixed in the cement concrete road slab 9, and the other end is in the casing 8. Sliding, a caulking plate 3 is arranged in the expansion joint, a V-shaped aluminum alloy plate 2 is installed above the caulking plate 3, and the two wings of the V-shaped aluminum alloy plate 2 are fixedly connected with the cement concrete pavement 9 on both sides. A joint filler 1 is poured into the V-shaped aluminum alloy plate 2 .

Preferably, a transverse support rib 5 and a bracket 6 are sequentially arranged below the dowel bar 4 , and the dowel bar 4 is supported by the transverse support bar 5 and the bracket 6 .

Preferably, the dowel rod is coated with a rust inhibitor coating 7 .

Preferably, the caulking board 3 is bonded with the cement concrete pavement boards 9 on both sides by an adhesive.

Preferably, the two wings of the V-shaped aluminum alloy plate 2 are bonded to the cement concrete pavement panels 9 on both sides by an adhesive.

Preferably, the upper edge of the V-shaped aluminum alloy plate 2 is lower than the road surface.

Preferably, the surface of the V-shaped aluminum alloy plate 2 should be roughened to remove impurities on the surface and ensure dryness and cleanliness.

Preferably, the lower edge of the V-shaped aluminum alloy plate 2 is not in contact with the upper edge of the caulking plate 3, leaving room for deformation.

Preferably, the V-shaped aluminum alloy plate 2 needs to be completely covered when the joint filler 1 is poured. During construction in summer, the joint filler 1 should be poured to be flush with the ground. During construction in winter, the joint filler 1 should be poured to 1-2mm away from the road.

An anti-seepage method for filling the anti-seepage device with the described cement concrete pavement expansion joint, the method specifically comprises the following steps:

Step 1. Set the sleeve 8 on one end of the dowel bar 4, then fix the dowel bar 4 on the bracket 6 and the lateral support bar 5, and pour the cement concrete pavement 9;

Step 2. After the maintenance of the cement concrete pavement 9 is completed, grind the concrete on both sides of the expansion joint to expose the coarse aggregate, and clean it until it is clean and dry;

Step 3. Fill the caulking board 3 into the expansion joint, and bond it to the concrete on both sides of the expansion joint through adhesive;

Step 4, grinding and cleaning the V-shaped aluminum alloy plate 2, and bonding the V-shaped aluminum alloy plate 2 with the cement concrete pavement 9 through an adhesive;

Step 5. Filling the gap filler into the groove formed by the V-shaped aluminum alloy plate 2 until the V-shaped aluminum alloy plate 2 is covered, and the gap filler is required to be no higher than the road surface.

The beneficial effects of the cement concrete pavement expansion joint filling anti-seepage device and the anti-seepage method thereof of the present invention are:

1. In the cement concrete pavement expansion joint filling anti-seepage device according to the present invention, a V-shaped aluminum alloy plate is added to the cement concrete pavement expansion joint to improve the deformation capacity of the expansion joint structure and enhance the anti-seepage effect.

2. The cement concrete pavement expansion joint filling anti-seepage device according to the present invention adds a V-shaped aluminum alloy plate to the cement concrete pavement expansion joint, bears the load together with the joint filling material, and cooperates with the deformation, so as to protect the joint filling material and improve the filling effect. The role of sewing material durability.

3. The anti-seepage device for filling cement concrete pavement expansion joints of the present invention has the advantages of simple structure, convenient and fast construction and maintenance, overcoming the shortcomings of fast aging and easy leakage of traditional pavement expansion joints, and at the same time ensuring the deformation of the pavement on both sides of the expansion joints coordination.

4. The present invention provides a cement concrete pavement expansion joint filling anti-seepage method with simple structure, convenient and fast construction and maintenance, and overcoming the shortcomings of traditional pavement expansion joint filling materials such as fast aging and easy leakage.

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

In the attached image:

1 is a schematic cross-sectional view of the structure of the cement concrete pavement expansion joint filling anti-seepage device according to an embodiment of the present invention;

2 is a schematic view of the appearance of the pavement after the cement concrete pavement expansion joint filling anti-seepage device according to the embodiment of the present invention is filled;

In the picture: 1- Joint filler, 2- V-shaped aluminum alloy sheet, 3- Joint plate, 4- Dowel rod, 5- Transverse support bar, 6- Bracket, 7- Anti-rust agent coating, 8- sets Tube, 9 - Cement concrete pavement.

Detailed ways

The specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings:

Embodiment 1: This embodiment is described with reference to FIG. 1 . The anti-seepage device for filling expansion joints of cement concrete pavement and the anti-seepage method thereof described in this embodiment include a joint filler 1, a V-shaped aluminum alloy plate 2, a joint plate 3, a number of dowel rods 4 and a casing 8, A number of dowel rods 4 are laterally arranged below the expansion joint between the two cement concrete pavement slabs 9, one end of the dowel rod 4 is covered with a sleeve 8, and one end of the dowel rod 4 is fixed on the cement concrete Inside the pavement plate 9, the other end slides in the casing 8, a caulking plate 3 is arranged in the expansion joint, a V-shaped aluminum alloy plate 2 is installed above the caulking plate 3, and the V-shaped aluminum alloy plate 2 has two wings. It is fixedly connected with the cement concrete pavement panels 9 on both sides, and the joint filler 1 is poured into the V-shaped aluminum alloy plate 2 .

A sliding dowel bar 4 is arranged between the cement concrete pavement slabs on both sides of the expansion joint. One end of the dowel bar is fixed in the cement concrete pavement slab 9, and the other end can slide in the casing 8. The bracket 6 and the transverse support bar 5 For fixing the dowel rod 4, the dowel rods 4 are evenly arranged along the length direction of the expansion joint, and the nested ends of the sleeves 8 of the adjacent dowel rods 4 are staggered, so that the adjacent dowel rods 4 slide staggeredly , cooperating with each other to deform, which further increases the stability of the protection; a caulking plate 3 is set in the expansion joint, the caulking plate 3 is bonded to the cement concrete pavement 9 through an adhesive, and a V-shaped aluminum alloy is installed above the caulking plate 3 Plate 2, the V-shaped aluminum alloy plate 2 is fixed on the cement concrete pavement 9 on both sides by adhesive, the upper edge of the V-shaped aluminum alloy plate 2 is lower than the road surface, and the lower edge of the V-shaped aluminum alloy plate 2 is connected to the caulking plate 3. Leave a certain distance from the upper edge, and pour the joint filler 1 into the V-shaped aluminum alloy plate 2 until the joint filler 1 is flush with the road surface.

The surface of the sliding end of the dowel rod 4 should be coated with anti-rust agent coating 7. The distance between the dowel rod 4 and the sleeve 8 should not be too large. Relative motion in the vertical direction cannot occur.

The surface of the cement concrete pavement 9 in the expansion joint should be polished to expose the coarse aggregate, and the surface should be clean and dry.

The lower edge of the caulking plate 3 should be flush with the lower edge of the cement concrete pavement 9, and a certain deformation space should be left between the caulking plate 3 and the V-shaped aluminum alloy plate 2.

The concave and convex side surfaces of the V-shaped aluminum alloy sheet 2 should be roughened to remove impurities on the surface and ensure that it is dry and clean. When pasting the V-shaped aluminum alloy sheet 2, ensure that the upper edge is lower than the road surface.

The joint filler 1 should completely cover the V-shaped aluminum alloy plate 2. During construction in summer, the joint filler 1 should be poured to be flush with the ground, and in winter construction, it should be poured to a distance of 1-2mm from the road surface.

An anti-seepage method for filling the anti-seepage device with the described cement concrete pavement expansion joint, the method specifically comprises the following steps:

Step 1. Set the sleeve 8 on one end of the dowel bar 4, then fix the dowel bar 4 on the bracket 6 and the lateral support bar 5, and pour the cement concrete pavement 9;

Step 2. After the maintenance of the cement concrete pavement 9 is completed, grind the concrete on both sides of the expansion joint to expose the coarse aggregate, and clean it until it is clean and dry;

Step 3. Fill the caulking board 3 into the expansion joint, and bond it to the concrete on both sides of the expansion joint through adhesive;

Step 4, grinding and cleaning the V-shaped aluminum alloy plate 2, and bonding the V-shaped aluminum alloy plate 2 with the cement concrete pavement 9 through an adhesive;

Step 5. Filling the gap filler into the groove formed by the V-shaped aluminum alloy plate 2 until the V-shaped aluminum alloy plate 2 is covered, and the gap filler is required to be no higher than the road surface.

The specific embodiments described above further describe the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention, and are not intended to limit the present invention, and may also be a reasonable combination of the features recorded in the above-mentioned various embodiments, all within the spirit and principle of the present invention, Any modification, equivalent replacement, improvement, etc. made should be included within the protection scope of the present invention.

Claims (10)

1. A cement concrete pavement expansion joint filling anti-seepage device is characterized in that, comprising a joint filler (1), a V-shaped aluminum alloy plate (2), a joint plate (3), several dowel rods (4) and sleeve (8), A number of dowel rods (4) are laterally arranged below the expansion joint between the two cement concrete pavement slabs (9). One end of the rod (4) is fixed in the cement concrete pavement (9), and the other end slides in the casing (8). A V-shaped aluminum alloy plate (2) is installed, the two wings of the V-shaped aluminum alloy plate (2) are fixedly connected to the cement concrete pavement panels (9) on both sides, and the V-shaped aluminum alloy plate (2) is filled with a joint filler ( 1). 2. The anti-seepage device for filling expansion joints of cement concrete pavement according to claim 1, characterized in that, a transverse support bar (5) and a bracket (6) are sequentially arranged below the dowel bar (4), and the The dowel rod (4) is supported by the lateral support ribs (5) and the bracket (6). 3 . The anti-seepage device for filling expansion joints of cement concrete pavement according to claim 1 , wherein the dowel rod is coated with a rust inhibitor coating ( 7 ). 4 . 4 . The anti-seepage device for filling expansion joints of cement concrete pavement according to claim 1 , wherein the joint filling plate ( 3 ) is bonded to the cement concrete pavement slabs ( 9 ) on both sides by an adhesive. 5 . 5. The cement concrete pavement expansion joint filling anti-seepage device according to claim 1, wherein the two wings of the V-shaped aluminum alloy plate (2) are adhered to the cement concrete pavement panels (9) on both sides by an adhesive. Knot. 6 . The anti-seepage device for filling expansion joints of cement concrete pavement according to claim 1 , characterized in that the upper edge of the V-shaped aluminum alloy plate ( 2 ) is lower than the road surface. 7 . 7. The anti-seepage device for filling expansion joints of cement concrete pavement according to claim 1, characterized in that, the surface of the V-shaped aluminum alloy plate (2) should be roughened to remove impurities on the surface and ensure that it is dry and clean. 8 . The anti-seepage device for filling expansion joints of cement concrete pavement according to claim 1 , wherein the lower edge of the V-shaped aluminum alloy plate (2) is not in contact with the upper edge of the caulking plate (3), leaving room for deformation. 9 . 9. The anti-seepage device for filling expansion joints of cement concrete pavement according to claim 1, characterized in that, the V-shaped aluminum alloy plate (2) needs to be completely covered when the joint filler (1) is poured, and during construction in summer , the joint filler (1) should be poured to be flush with the ground. During construction in winter, the joint filler (1) should be poured to 1-2mm away from the road surface. 10. An anti-seepage method utilizing the cement concrete pavement expansion joint filling anti-seepage device according to any one of claims 1-9, characterized in that: it specifically comprises the following steps: Step 1. Put the sleeve (8) on one end of the dowel bar (4), then fix the dowel bar (4) on the bracket (6) and the lateral support bar (5), and pour the cement concrete pavement (9) ; Step 2. After the curing of the cement concrete pavement (9) is completed, grind the concrete on both sides of the expansion joint to expose the coarse aggregate, and clean it until it is clean and dry; Step 3. Fill the joint-filling plate (3) into the expansion joint, and bond it to the concrete on both sides of the expansion joint through an adhesive; Step 4, grinding and cleaning the V-shaped aluminum alloy plate (2), and bonding the V-shaped aluminum alloy plate (2) with the cement concrete pavement plate (9) through an adhesive; Step 5. Filling the gap filler into the groove formed by the V-shaped aluminum alloy plate (2) until the V-shaped aluminum alloy plate (2) is covered, and the gap filler is required to be no higher than the exit road.

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