Reinforced retaining wall deformation joint structure for construction work

By pre-embedding steel plates and double-layer waterstops in the retaining wall, and combining them with asphalt hemp fiber, foam strips and foam boards as filling materials, the waterproofing problem of the retaining wall expansion joints was solved, achieving a longer waterproofing period and a stable connection.

CN224468430UActive Publication Date: 2026-07-07刘晓琳

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
刘晓琳
Filing Date
2025-07-29
Publication Date
2026-07-07

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    Figure CN224468430U_ABST
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Abstract

The utility model discloses a reinforced retaining wall deformation joint structure for constructional engineering, it includes the connecting steel sheet of pre -buried in the both sides retaining wall of deformation joint body inner chamber, the top and bottom of two connecting steel sheet all are installed with the water stop body, both ends of water stop body all are in the inside of retaining wall, the side of water stop body away from connecting steel sheet is filled with pitch hemp yarn located deformation joint body inner chamber, the side of pitch hemp yarn away from water stop body is filled with foam strip. The utility model discloses a connecting steel sheet and water stop body of pre -buried in retaining wall, played the role of partition, effectively guaranteed the waterproof effect of deformation joint place, then adopt pitch hemp yarn, foam strip and foam board to cover and protect water stop body, effectively block the destruction of water stop body to the foreign matter, can reach the waterproof of deformation joint with pre -buried steel sheet and double -layer water stop band cooperation filling material, improve waterproof effect, prolong waterproof cycle's purpose.
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Description

Technical Field

[0001] This utility model belongs to the field of building engineering technology, and in particular relates to a reinforced retaining wall expansion joint structure for use in building engineering. Background Technology

[0002] In construction engineering, the expansion joints of retaining walls are structural joints designed to prevent cracking or damage to the wall caused by factors such as temperature changes, uneven foundation settlement, and structural shrinkage. They are a crucial component in the design and construction of retaining walls.

[0003] The expansion joints of retaining walls must meet the requirements of free expansion and contraction, waterproof sealing, and structural continuity. Expansion joints in retaining walls are generally waterproofed by filling materials. In order to improve the waterproof performance, we have designed a reinforced retaining wall expansion joint structure for building engineering. It uses embedded steel plates and double-layer waterstops in combination with filling materials to achieve waterproofing of the expansion joints, improve the waterproofing effect, and extend the waterproofing period. Utility Model Content

[0004] The purpose of this utility model is to provide a reinforced retaining wall expansion joint structure for building engineering, which has the advantages of using pre-embedded steel plates and double-layer waterstops in combination with filling materials to achieve waterproofing of the expansion joint, improve the waterproofing effect, and extend the waterproofing period, so as to solve the above-mentioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a reinforced retaining wall expansion joint structure for building engineering, comprising connecting steel plates pre-embedded in the retaining walls on both sides of the inner cavity of the expansion joint body, waterstop bodies installed on the top and bottom of the two connecting steel plates, both ends of the waterstop bodies being inside the retaining wall, the side of the waterstop body away from the connecting steel plates being filled with asphalt hemp fibers located in the inner cavity of the expansion joint body, the side of the asphalt hemp fibers away from the waterstop body being filled with foam strips, the side of the foam strips away from the asphalt hemp fibers being provided with foam boards filled in the inner cavity of the expansion joint body, and multiple bolts penetrating between the two waterstop bodies and the expansion joint body, the waterstop bodies being installed on the connecting steel plates by the multiple bolts.

[0006] Preferably, the connecting steel plate has multiple through holes I for bolts to pass through, and the top of the waterstop body has multiple through holes II on both sides for bolts to pass through.

[0007] Preferably, sealing gaskets are fitted at both ends of the bolt surface, and the sealing gaskets are attached to the side of the waterstop body away from the connecting steel plate.

[0008] Preferably, the space between the foam strip and the foam board is filled with sealant.

[0009] Preferably, the connecting steel plate is provided with multiple reinforcing ribs, which are pre-embedded inside the retaining wall and welded to the steel bars inside the retaining wall.

[0010] The beneficial effects of this utility model are:

[0011] 1. This utility model uses a connecting steel plate and a waterstop body pre-embedded in the retaining wall to achieve a barrier function, effectively ensuring the waterproof effect at the expansion joint. Then, asphalt hemp fiber, foam strips and foam boards are used to cover and protect the waterstop body, effectively preventing foreign objects from entering and damaging the waterstop body. Thus, the purpose of using a pre-embedded steel plate and a double-layer waterstop combined with filling materials to achieve waterproofing of the expansion joint, improve the waterproofing effect and extend the waterproofing period is achieved.

[0012] 2. By using sealant, this utility model can bond the foam board and the foam strip together, effectively preventing the foam board from popping out of the expansion joint and ensuring the stability of the foam board.

[0013] 3. By setting reinforcing ribs and inserting them into the retaining wall, this utility model can increase the connection strength between the connecting steel plate and the retaining wall, effectively ensuring the stability of the connecting steel plate. Attached Figure Description

[0014] The advantages of the present invention, as described in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the invention.

[0015] Figure 1 This is a top view structural diagram of a retaining wall according to an embodiment of the present invention;

[0016] Figure 2 This is a three-dimensional schematic diagram of the connecting steel plate and the waterstop body according to one embodiment of the present invention;

[0017] Figure 3 This is a three-dimensional disassembled schematic diagram of the connecting steel plate and the waterstop body in one embodiment of the present invention. Detailed Implementation

[0018] In the following description, embodiments of the reinforced retaining wall expansion joint structure of the present invention for building engineering will be described with reference to the accompanying drawings.

[0019] Figure 1-3This invention illustrates an embodiment of a reinforced retaining wall expansion joint structure for building construction. It includes connecting steel plates 2 embedded in the retaining walls on both sides of the expansion joint body 1. Waterstop bodies 3 are installed at the top and bottom of both connecting steel plates 2. Multiple reinforcing ribs 8 are threaded through the connecting steel plates 2, embedded inside the retaining wall and welded to the internal steel reinforcement. The reinforcing ribs 8 increase the connection strength between the connecting steel plates 2 and the retaining wall, effectively ensuring the stability of the connecting steel plates 2. Both ends of the waterstop body 3 are inside the retaining wall. The side of the waterstop body 3 away from the connecting steel plates 2 is filled with asphalt-impregnated hemp fibers 4 located within the cavity of the expansion joint body 1, and the side of the asphalt-impregnated hemp fibers 4 away from the waterstop body 3 is filled with foam strips 5. A foam board 7, which fills the cavity of the expansion joint body 1, is provided on the side of the foam strip 5 away from the asphalt hemp fiber 4. A sealant 6 is filled between the foam strip 5 and the foam board 7. The sealant 6 can bond the foam board 7 to the foam strip 5, effectively preventing the foam board 7 from popping out of the expansion joint body 1 and ensuring the stability of the foam board 7. Multiple bolts 9 are installed through the two waterstop bodies 3 and the expansion joint body 1. The waterstop body 3 is installed on the connecting steel plate 2 by multiple bolts 9. Multiple through holes 10 for the bolts 9 to pass through are opened on the connecting steel plate 2. Multiple through holes 2 11 for the bolts 9 to pass through are opened on both sides of the top of the waterstop body 3. Sealing gaskets 12 are fitted on both ends of the surface of the bolts 9. The sealing gaskets 12 are attached to the side of the waterstop body 3 away from the connecting steel plate 2.

[0020] Working principle: When using this utility model, the user assembles the connecting steel plate 2 and the waterstop body 3 using bolts 9, fills the contact position between the connecting steel plate 2 and the waterstop body 3 with glue, then places it in the retaining wall and welds the reinforcing rib 8 to the steel bars inside the retaining wall. During pouring, the waterstop body 3 is located in the expansion joint. After molding and demolding, asphalt hemp fiber 4 is filled in, and foam strip 5, sealant 6 and foam board 7 are filled in sequence to protect the two waterstop bodies 3. The two layers of waterstop bodies 3 provide a double waterproof effect for the expansion joint body 1, effectively preventing water from passing through the expansion joint body 1 and penetrating the retaining wall. The two layers of waterstop bodies 3 act as a barrier, effectively ensuring the waterproof effect at the expansion joint.

[0021] In summary, this reinforced retaining wall expansion joint structure used in building engineering, through the connecting steel plate 2 and the waterstop body 3 pre-embedded in the retaining wall, plays a role in isolation, effectively ensuring the waterproof effect at the expansion joint. Then, asphalt hemp fiber 4, foam strip 5 and foam board 7 are used to cover and protect the waterstop body 3, effectively preventing foreign objects from entering and damaging the waterstop body 3. Thus, the purpose of using pre-embedded steel plate and double-layer waterstop in combination with filling materials to achieve waterproofing of the expansion joint, improve the waterproofing effect and extend the waterproofing period is achieved.

Claims

1. A reinforced retaining wall expansion joint structure for use in building construction, characterized in that, The system includes connecting steel plates (2) embedded in the retaining walls on both sides of the inner cavity of the expansion joint body (1). Waterstop bodies (3) are installed on the top and bottom of the two connecting steel plates (2). Both ends of the waterstop bodies (3) are inside the retaining walls. The side of the waterstop body (3) away from the connecting steel plates (2) is filled with asphalt hemp fibers (4) located in the inner cavity of the expansion joint body (1). The side of the asphalt hemp fibers (4) away from the waterstop body (3) is filled with foam strips (5). The side of the foam strips (5) away from the asphalt hemp fibers (4) is provided with foam boards (7) filled in the inner cavity of the expansion joint body (1). Multiple bolts (9) are installed through the two waterstop bodies (3) and the expansion joint body (1). The waterstop bodies (3) are installed on the connecting steel plates (2) by multiple bolts (9).

2. The reinforced retaining wall expansion joint structure for building engineering according to claim 1, characterized in that, The connecting steel plate (2) has multiple through holes (10) for bolts (9) to pass through, and the top of the waterstop body (3) has multiple through holes (11) for bolts (9) to pass through on both sides.

3. The reinforced retaining wall expansion joint structure for building engineering according to claim 2, characterized in that, Both ends of the bolt (9) are fitted with sealing gaskets (12), which are attached to the side of the waterstop body (3) away from the connecting steel plate (2).

4. The reinforced retaining wall expansion joint structure for building engineering according to claim 3, characterized in that, The space between the foam strip (5) and the foam board (7) is filled with sealant (6).

5. The reinforced retaining wall expansion joint structure for building engineering according to claim 4, characterized in that, Multiple reinforcing ribs (8) are provided through the connecting steel plate (2), and the reinforcing ribs (8) are embedded in the interior of the retaining wall and welded to the steel bars inside the retaining wall.