Novel underground structure expansion joint waterproof structure

Abstract

The utility model discloses a novel underground structure expansion joint waterproof structure, an expansion joint is filled with sealant, the expansion joint is provided with a first red copper waterstop and a second red copper waterstop at intervals from the inside of a basement to the outside of the basement, and two red copper waterstops form two metal waterstops. An extruded polystyrene board is installed at the end, close to the interior of a basement, of the sealant, a waterproof coiled material is installed on the surface of the outer wall of the basement, and a protective layer is arranged outside the waterproof coiled material. The red copper has the advantages of being resistant to corrosion and excellent in ductility and can play a good waterproof role, and the waterproof structure has the advantages of being reasonable in design, good in waterproof performance, good in corrosion resistance and good in durability.

Description

TECHNICAL FIELD

[0001] The utility model relates to building engineering technical field, concretely relates to novel underground structure expansion joint waterproof structure. BACKGROUND

[0002] In the traditional expansion joint node structure, the waterproof structure adopts rubber waterstop and detachable waterstop, the rubber waterstop is fixed between two layers of steel bars in advance before concrete pouring, and after concrete pouring, the expansion joint on both sides of the main structure is connected through the engagement force between the rubber waterstop and the concrete, so that the rubber waterstop and the main structure form an integral whole, and the expansion joint enters the working state.

[0003] However, the rubber waterstop has general waterproof effect, and the rubber is easy to break, age and has poor durability; the combination of the rubber waterstop and the detachable waterstop increases a waterproof measure, but the detachable waterstop can only be installed on the inner side of the basement structure, and the waterproof effect is poor.

[0004] Therefore, the utility model provides novel expansion joint waterproof structure. UTILITY MODEL CONTENTS

[0005] In view of the problems in the prior art, the utility model aims at providing novel expansion joint waterproof structure, and increasing waterproof reliability.

[0006] In order to realize the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0007] Novel underground structure expansion joint waterproof structure, the expansion joint is filled with sealing paste, and the expansion joint is provided with purple copper waterstop one and purple copper waterstop two from the inside of the basement to the outside of the basement at intervals, wherein the two purple copper waterstops constitute two metal waterstops, the end portion of the sealing paste close to the inside of the basement is provided with extruded polystyrene board, the outer wall surface of the basement is provided with waterproof roll material, and the waterproof roll material is provided with a protective layer outside.

[0008] Further, the purple copper waterstop one is in the shape of U or V.

[0009] Further, the purple copper waterstop two is in the shape of U or V.

[0010] Further, the length of the sealing paste is less than the length of the expansion joint.

[0011] Further, the protective layer is a reinforced concrete protective layer with a thickness of 150 mm.

[0012] Compared with the prior art, the utility model has the beneficial effects as follows:

[0013] 1) This utility model increases waterproof reliability by installing a copper waterstop belt one and a copper waterstop belt two at intervals from the inside to the outside of the basement at the expansion joint. The two copper waterstop belts constitute two metal waterstop belts.

[0014] 2) Compared with the traditional steel plate waterstops used in civil buildings, which are prone to corrosion in underground environments, especially corrosive environments, the waterstop of this utility model is made of copper. Copper has the characteristics of corrosion resistance and excellent ductility, and can play a very good waterproof role.

[0015] 3) The waterproof structure of this utility model has the characteristics of reasonable design, good waterproof performance, good corrosion resistance and good durability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] In the diagram: 1. Sealant; 2. Copper waterstop one; 3. Copper waterstop two; 4. Extruded polystyrene board; 5. Waterproof membrane; 6. Protective layer. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the scope described herein.

[0019] Please refer to Figure 1 The new type of waterproof expansion joint structure for underground structures has a standard expansion joint width of 50mm. Due to the large expansion and contraction deformation of ultra-long underground structures, the waterproof structure inside the joint is easily squeezed and damaged under contraction conditions. The width has now been increased to 150mm to better adapt to the expansion and contraction deformation of the structure and reduce the compression of the waterproof structure.

[0020] The expansion joint is filled with sealant 1. Copper waterstop 1 2 and copper waterstop 2 3 are installed at intervals from the inside of the basement to the outside of the basement. The two copper waterstops form two metal waterstops, which increases the reliability of waterproofing.

[0021] Rubber waterstops are easily damaged during construction and prone to aging over long-term use, resulting in poor water-stopping performance. Furthermore, their limited tensile strength makes them susceptible to tearing and breakage. Metal waterstops are now being used as a replacement. Traditionally, steel plate waterstops were used in civil buildings, but they are prone to corrosion in underground environments, especially corrosive ones. Modern waterstops are made of copper, which is corrosion-resistant and has excellent ductility, providing excellent waterproofing.

[0022] In this embodiment, the copper waterstop 2 is U-shaped or V-shaped. The copper waterstop 3 is U-shaped or V-shaped.

[0023] Furthermore, the length of sealant 1 is less than the length of the expansion joint.

[0024] To protect the waterproof structure inside the expansion joint, a 150mm thick reinforced concrete protective layer is installed on the side of the expansion joint that is in contact with water and soil.

Claims

1. A new type of waterproof structure for expansion joints in underground structures, the expansion joint being filled with a sealing paste (1), characterised in that The expansion joint is provided with a red copper water stop belt one (2) and a red copper water stop belt two (3) between the basement and the outside of the basement, wherein the two red copper water stops constitute two metal water stop belts, an extruded polystyrene board (4) is installed near the end of the sealing paste (1) in the basement, a waterproof coiled material (5) is installed on the surface of the outer wall of the basement, and the waterproof coiled material (5) is externally provided with a protective layer (6).

2. The novel expansion joint waterproofing structure for underground structures according to claim 1, characterized in that The red copper water stop belt one (2) is in a U-shaped or V-shaped form.

3. The novel expansion joint waterproofing structure for underground structures as claimed in claim 1 wherein The red copper water stop belt two (3) is in a U-shaped or V-shaped form.

4. The novel expansion joint waterproofing structure for underground structures according to claim 1, characterized in that The length of the sealing paste (1) is less than the length of the expansion joint.

5. The novel expansion joint waterproofing structure for underground structures as claimed in claim 1 wherein The protective layer (6) is a reinforced concrete protective layer with a thickness of 150 mm.

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