Pile top waterproof structure

Abstract

The utility model relates to the technical field of waterproof structures, in particular to a pile top waterproof structure which comprises a foundation pit ground, a pile body is arranged on the foundation pit ground, a raft plate layer is arranged on one side of the upper portion of the pile body, a plain concrete layer and a positioning assembly are arranged between the raft plate layer and the foundation pit ground, a spring seal spring is arranged on the positioning assembly, and the spring seal spring is arranged on the foundation pit ground. The first annular groove is formed in the pile body, the water swelling strip is arranged in the first annular groove, the waterproof plate is arranged between the raft plate layer and the pile body, and the sealing and waterproof effects can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to waterproof structure technical field, specifically, relate to a pile top waterproof structure. BACKGROUND

[0002] The pile top waterproof structure is a key structure for preventing groundwater from seeping along the junction of the pile foundation and the pile cap in building engineering, is usually composed of multiple layers of waterproof materials and mechanical sealing components, and has the core function of blocking the water seeping path and coordinating the deformation difference between the pile and the pile cap, is an important component for ensuring the quality of the pile foundation engineering and the safety of the building, avoids the rusting of the reinforcing steel bars and the reduction of the concrete strength, protects the pile top from the damage of the external environment such as rainwater and corrosive substances, and enhances the stability and the bearing capacity of the pile top.

[0003] For example, a kind of foundation pit pile top waterproof structure is disclosed in Chinese patent application No.CN202220680478.3, which includes a waterproof plate, the plate surface of the waterproof plate is in abutment with the end surface of pile, and a concrete layer, a waterproof membrane and a raft layer are sequentially arranged on the ground of foundation pit from bottom to top.The waterproof plate is used to block the opening of the pile top of the pile in the present application, so that water is not easy to enter the pile through the opening of the pile top, and the waterproof purpose is achieved, and the operation process is also simplified.

[0004] However, in the traditional pile top waterproof structure, the joint between the pile body and the waterproof layer is usually treated by static sealing method (such as single rubber ring or sealing glue filling).Although such structure can achieve a certain sealing effect at the initial stage of construction, it is easy to separate the sealing interface and form a water seeping channel under the thermal expansion and cold contraction of the pile body. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a pile top waterproof structure, which can effectively solve the problem that in the traditional pile top waterproof structure, the joint between the pile body and the waterproof layer is usually treated by static sealing method (such as single rubber ring or sealing glue filling).Although such structure can achieve a certain sealing effect at the initial stage of construction, it is easy to separate the sealing interface and form a water seeping channel under the thermal expansion and cold contraction of the pile body.

[0006] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of a pile top waterproof structure, which includes a foundation pit ground, a pile body is arranged on the foundation pit ground, a raft layer is arranged on one side above the pile body, a concrete layer and a positioning assembly are arranged between the raft layer and the foundation pit ground, a plug sealing spring is arranged on the positioning assembly, a first ring groove is arranged on the pile body, a water-swelling waterstop is arranged in the first ring groove, and a waterproof plate is arranged between the raft layer and the pile body.

[0007] As a preferred embodiment, the positioning assembly includes an assembly base, a second ring groove is arranged on the assembly base, and a bottom plate is arranged on one side below the assembly base.

[0008] As preferred, the third ring groove is arranged on one side of the assembly base close to the bottom plate, and a positioning ring is arranged in the third ring groove, and an elastic rubber ring is arranged on the positioning ring.

[0009] As preferred, the assembly base and the bottom plate are both annular, and the flood seal spring is arranged in the second ring groove.

[0010] As preferred, the positioning ring is fixedly connected with the bottom plate.

[0011] As preferred, a part of the water-swelling sealing strip is arranged in the second ring groove.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] (1) when the pile body is slightly deformed due to thermal expansion and cold shrinkage, the elastic force of the deformed flood seal spring makes the water-swelling sealing strip always adhere to the inner wall of the first ring groove, improving the sealing effect, and when the water-swelling sealing strip contacts rainwater, the water-swelling sealing strip expands, the water-swelling sealing strip extrudes the flood seal spring, increasing the deformation degree of the flood seal spring, so that the flood seal spring exerts greater radial pressure on the water-swelling sealing strip, further ensuring that the water-swelling sealing strip can tightly adhere to the inner wall of the first ring groove in rainy weather, improving the waterproof effect. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model of a pile top waterproof structure;

[0015] Figure 2 It is a structural schematic view of the utility model of a pile top waterproof structure;

[0016] Figure 3 It is a structural schematic view of the utility model of a pile top waterproof structure;

[0017] Figure 4 It is a structural schematic view of the utility model of a pile top waterproof structure; Figure 3 It is an enlarged structural schematic view of A of the utility model of a pile top waterproof structure.

[0018] In the drawing: 1, foundation ground; 2, pile body; 3, raft layer; 4, plain concrete layer; 5, positioning assembly; 501, assembly base; 502, second ring groove; 503, bottom plate; 504, third ring groove; 505, positioning ring; 506, elastic rubber ring; 6, first ring groove; 7, water-swelling sealing strip; 8, flood seal spring; 9, waterproof plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0020] As shown in Figure 1 and Figure 2 A pile top waterproof structure, including the foundation ground 1, the foundation ground 1 is provided with pile body 2, one side above pile body 2 is provided with raft layer 3, raft layer 3 and foundation ground 1 between are provided with concrete layer 4 and positioning assembly 5, positioning assembly 5 is provided with flood plug sealing spring 8, pile body 2 is provided with first annular groove 6, first annular groove 6 is provided with water-swelling waterstop 7, raft layer 3 and pile body 2 between are provided with waterproof board 9.

[0021] As shown in Figure 3 and Figure 4 In another embodiment of the utility model, the positioning assembly 5 includes assembly base 501, the assembly base 501 is provided with second annular groove 502, one side below assembly base 501 is provided with bottom plate 503;

[0022] The side of assembly base 501 close to bottom plate 503 is provided with third annular groove 504, third annular groove 504 is provided with positioning ring 505, positioning ring 505 is provided with elastic rubber ring 506;

[0023] When positioning assembly 5 needs to be installed, first, bottom plate 503 is sleeved on pile body 2, then assembly base 501 is attached with bottom plate 503, and positioning ring 505 is inserted into third annular groove 504, then the weight of raft layer 3 is used to extrude assembly base 501, then the inner wall of third annular groove 504 extrudes elastic rubber ring 506, so that elastic rubber ring 506 is deformed, and the gap between third annular groove 504 and positioning ring 505 is sealed by deformed elastic rubber ring 506.

[0024] The working principle of the pile top waterproof structure is as follows:

[0025] In use, first, the bottom plate 503 is sleeved on the pile body 2, then the water-swelling sealing strip 7 is sleeved in the first ring groove 6, then the flood plug sealing spring 8 is sleeved on the water-swelling sealing strip 7, then the assembly base 501 is attached to the bottom plate 503, and the positioning ring 505 is inserted into the third ring groove 504, at this time, the flood plug sealing spring 8 is extruded by the inner wall of the second ring groove 502, and is deformed, then the weight of the raft layer 3 is used to extrude the assembly base 501, then the inner wall of the third ring groove 504 extrudes the elastic rubber ring 506, the elastic rubber ring 506 is deformed, the gap between the third ring groove 504 and the positioning ring 505 is sealed by the deformed elastic rubber ring 506, then the plain concrete layer 4 is poured and formed, the positioning assembly 5 is positioned to a certain extent by the plain concrete layer 4, then the waterproof plate 9 is covered above the pile body 2, the pile body 2 above is closed by the raft layer 3, when the pile body 2 is slightly deformed due to thermal expansion and cold contraction, the water-swelling sealing strip 7 is always attached to the inner wall of the first ring groove 6 by the elastic force of the deformed flood plug sealing spring 8, the sealing effect is improved, at the same time, when the water-swelling sealing strip 7 contacts with rainwater, the water-swelling sealing strip 7 is expanded, the water-swelling sealing strip 7 extrudes the flood plug sealing spring 8, the deformation degree of the flood plug sealing spring 8 is increased, the water-swelling sealing strip 7 is applied with greater radial pressure by the flood plug sealing spring 8, the water-swelling sealing strip 7 can be tightly attached to the inner wall of the first ring groove 6 in rainy weather, and the waterproof effect is improved.

[0026] Obviously, the above embodiments of the present application are merely exemplary and are not intended to limit the embodiments of the present application. Based on the above description, other different forms of changes or modifications can be made by those skilled in the art, and all the embodiments are not exhaustively listed here. Any obvious changes or modifications derived from the technical solutions of the present application are still within the protection scope of the present application.

Claims

1. A waterproof structure of a pile top, comprising a foundation pit ground (1), characterized in that: The foundation ground (1) is provided with a pile body (2), the raft layer (3) is arranged on the upper side of the pile body (2), the concrete layer (4) and the positioning assembly (5) are arranged between the raft layer (3) and the foundation ground (1), the water stop spring (8) is arranged on the positioning assembly (5), the first annular groove (6) is arranged on the pile body (2), the water-swelling water stop strip (7) is arranged in the first annular groove (6), and the waterproof board (9) is arranged between the raft layer (3) and the pile body (2).

2. A waterproof structure of a pile top according to claim 1, characterized in that: The positioning assembly (5) comprises an assembly base (501), the second annular groove (502) is arranged on the assembly base (501), and the bottom plate (503) is arranged on the side, below the assembly base (501).

3. A waterproof structure of a pile top according to claim 2, characterized in that: The third annular groove (504) is arranged on the side, close to the bottom plate (503) of the assembly base (501), the positioning ring (505) is arranged in the third annular groove (504), and the elastic rubber ring (506) is arranged on the positioning ring (505).

4. A waterproof structure of a pile top according to claim 3, characterized in that: The assembly base (501) and the bottom plate (503) are annular, and the water stop spring (8) is located in the second annular groove (502).

5. A waterproof structure of a pile top according to claim 4, characterized in that: The positioning ring (505) is fixedly connected with the bottom plate (503).

6. A waterproof structure of a pile top according to claim 5, characterized in that: Part of the water-swelling water stop strip (7) is located in the second annular groove (502).

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