Recyclable drainage ditch around foundation pit

Abstract

The recyclable drainage ditch on the periphery of the foundation pit is formed by splicing a plurality of drainage ditch units, each drainage ditch unit comprises a drainage ditch body, a pressure-bearing anti-skid cover plate, a rubber pad, a filter screen and a U-shaped connecting plate, the pressure-bearing anti-skid cover plate is arranged at the upper end of the drainage ditch body, the rubber pad is arranged at the contact position of the pressure-bearing anti-skid cover plate and the drainage ditch body, and the filter screen is arranged on the U-shaped connecting plate. The filter screen is arranged in the drainage ditch body, and the drainage ditch units are connected through the U-shaped connecting plates. The anti-seepage drainage ditch has the advantages that the water baffles are arranged in the road surfaces on the two sides of the drainage ditch body and embedded into concrete when the road surfaces are hardened, the overall anti-seepage performance is enhanced, and surface water is effectively prevented from flowing into a foundation pit; the drainage ditch body at the turning position of the drainage ditch is designed to be arc-shaped, sediment accumulation is avoided, and the blocking risk is reduced; the drainage ditch units are connected through the U-shaped connecting plates and fixed through the rivets, and the connecting portions are sealed through the sealant, so that the leakage risk is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of building engineering construction, especially a kind of surrounding of foundation pit recyclable drainage ditch and construction method. BACKGROUND

[0002] In the process of foundation pit support construction, to avoid surface water flow into foundation pit, cause support structure to be washed, or surface water seep into support structure, affect support structure stability, cause security risk, especially in expansive soil area, attention is paid to soil body closure and anti-seepage, must do well water interception and drainage work, usually set water interception ditch outside water stop curtain on the top of foundation pit. At the same time, after the completion of foundation pit earthwork excavation, to ensure that pit bottom underground water and rainwater do not affect foundation construction, can be concentrated drainage, set drainage ditch around the pit bottom to drain. The most common method for water interception and drainage ditch construction is brick masonry and concrete drainage ditch. Brick masonry drainage ditch will crack, fracture and other conditions with the settlement of foundation pit, and cracks are easily generated at the joint between surface layer and hardened pavement, causing surface water to seep in, affecting support structure stability, and requiring regular repair. Concrete cast-in-place water interception and drainage ditch has high ditch body strength, but requires construction of concrete cushion, formwork and pouring of concrete, and the process is relatively complex, with high material and labor costs, so it is usually not the first choice in temporary engineering.

[0003] Ordinary finished drainage ditch materials are usually cast iron, polymer, plastic, concrete, etc., which are prone to foundation pit settlement problems, thereby adversely affecting the ditch. Ordinary finished water ditch is linear and straight, and the corners are connected at right angles, which is not conducive to smooth drainage and is prone to sediment accumulation. UTILITY MODEL CONTENTS

[0004] To solve the above technical problems, the utility model provides a recyclable drainage ditch around the foundation pit, which is especially suitable for water interception and drainage work after the completion of foundation pit earthwork excavation.

[0005] The technical scheme adopted by the utility model is as follows: in the first aspect, a recyclable drainage ditch around the foundation pit is provided, which includes a drainage ditch body, a pressure-bearing anti-skid cover plate, a rubber pad, a filter screen and a U-shaped connecting plate. The pressure-bearing anti-skid cover plate is arranged on the upper end of the drainage ditch body, the rubber pad is arranged at the contact position between the pressure-bearing anti-skid cover plate and the drainage ditch body, the filter screen is arranged inside the drainage ditch body, and the drainage ditch units are connected by the U-shaped connecting plate.

[0006] Further, the drainage ditch body adopts an arc corner structure at the turning position.

[0007] Further, a water baffle is arranged in the road surface on both sides of the drainage ditch body.

[0008] Further, the drainage ditch body and the U-shaped connecting plate are connected by rivets.

[0009] Further, the pressure-bearing anti-skid cover plate is provided with a small mesh eye.

[0010] The utility model has the advantages and positive effects that: due to the above technical scheme, the water baffle is arranged in the pavement on the both sides of the drainage ditch body, and the water baffle is embedded in the concrete when the pavement is hardened, so that the overall impermeability is enhanced, and the surface water is effectively prevented from flowing into the foundation pit; the drainage ditch body at the turning part of the drainage ditch is designed as an arc shape, so that the accumulation of silt is avoided, the water flow is ensured smooth, and the risk of blockage is reduced; the filter screen is additionally arranged on the lower side of the pressure-bearing anti-skid cover plate, and the detachable small mesh pressure-bearing cover plate is used to form a multilayer filtering system, so that the filter screen can effectively intercept silt and other sundries, reduce the risk of water ditch blockage, shorten the sedimentation period, and facilitate secondary utilization or direct discharge into the municipal pipe network; the U-shaped connecting plates are used to connect the drainage ditch units, the traditional socket connection mode is abandoned, rivets are used for fixation, and sealing glue is used for sealing at the connecting part and the rivet hole, so that the stability and sealing performance of the connection are enhanced, and the risk of leakage is reduced; the entire drainage ditch system is installed quickly, the sand cushion layer is only needed to be laid, and then the ditch body is directly installed, the sand material is backfilled and tamped, the pavement is hardened and the cover plate is installed, after the temporary project is completed, the stainless steel drainage ditch can be recycled and reused, the removal cost is reduced, and remarkable economic benefits are obtained. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 is the cross section schematic view of the drainage ditch unit of the utility model embodiment

[0012] Fig. 2 is the schematic view of the connection mode of the drainage ditch unit of the utility model embodiment

[0013] In the drawing:

[0014] 101, drainage ditch body 102, pressure-bearing anti-skid cover plate 103, rubber pad

[0015] 104, filter screen 105, U-shaped connecting plate 106, water baffle

[0016] 107, rivet DETAILED DESCRIPTION

[0017] The disclosure will be described more fully below in connection with the accompanying drawings, in which exemplary embodiments of the disclosure are illustrated. The technical solutions in the embodiments of the disclosure will be described clearly and completely below in combination with the drawings of the embodiments of the disclosure. Obviously, the described embodiments are only part of the embodiments of the disclosure, rather than all the embodiments. Based on the embodiments in the disclosure, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the disclosure.

[0018] As Figs. 1-2As shown, the utility model discloses a foundation pit peripheral recyclable drainage ditch is formed by splicing multiple drainage ditch units, and the drainage ditch unit includes drainage ditch body 101, pressure-bearing anti-skid cover plate 102, rubber pad 103, filter screen 104 and U-shaped connecting plate 105, the pressure-bearing anti-skid cover plate 102 is arranged on the upper end of drainage ditch body 101, the rubber pad 103 is arranged at the contact place of pressure-bearing anti-skid cover plate 102 and drainage ditch body 101, the filter screen 104 is arranged inside drainage ditch body 101, and the drainage ditch units are connected through U-shaped connecting plate 105.

[0019] The pressure-bearing anti-skid cover plate 102 is arranged on the upper end of the drainage ditch body 101 and is mainly used for preventing external heavy objects from directly pressing on the drainage ditch unit and protecting the internal structure. The rubber pad 103 is arranged at the contact place of the pressure-bearing anti-skid cover plate 102 and the drainage ditch body 101 and plays a sealing and shock-absorbing role. The rubber pad can effectively prevent water from seeping through the gap between the cover plate and the ditch body, ensuring the sealing property of the drainage system. The rubber pad also has a certain elasticity and can play a buffering role when the pressure-bearing anti-skid cover plate 102 is impacted by external force, prolonging the service life of the pressure-bearing anti-skid cover plate 102 and the drainage ditch body 101. The filter screen 104 is arranged inside the drainage ditch body 101 and below the pressure-bearing anti-skid cover plate 102. The filter screen 104 is used for filtering the mud and other sundries entering the drainage ditch, keeping the ditch clean and unobstructed. Through multiple layers of screening of sundries, the risk of clogging of the ditch is reduced, and the maintenance cycle is prolonged. The U-shaped connecting plate 105 is used for connecting adjacent drainage ditch units, ensuring the continuity and stability of the entire drainage system. The material of the drainage ditch body 101 includes but is not limited to stainless steel, glass steel, polyethylene, polypropylene and concrete. The advantage of using stainless steel is high strength, corrosion resistance, good compression resistance, which can effectively prevent cracks and fractures caused by foundation pit settlement, and stainless steel also has good durability and recyclability, meeting environmental protection requirements. The material of the pressure-bearing anti-skid cover plate 102 includes but is not limited to stainless steel, aluminum alloy, cast iron and glass fiber reinforced plastic. The material of the rubber pad 103 includes but is not limited to natural rubber, ethylene-propylene-diene rubber, chloroprene rubber and silicone rubber. The material of the filter screen 104 includes but is not limited to stainless steel, polyethylene, polypropylene, nylon and galvanized iron wire mesh. The material of the U-shaped connecting plate 105 includes but is not limited to stainless steel, aluminum alloy, cast iron and glass fiber reinforced plastic.

[0020] In an embodiment, the drainage ditch body 101 adopts an arc corner structure at the turning place.

[0021] The drainage ditch body 101 at the turning place of the drainage ditch is designed as an arc corner structure, avoiding mud accumulation, ensuring smooth water flow and reducing the risk of clogging.

[0022] In an embodiment, a water baffle 106 is arranged in the road surface on both sides of the drainage ditch body 101.

[0023] The water baffle 106 is embedded in the concrete when the road surface is hardened, thereby enhancing the overall anti-permeability and effectively preventing the surface water from flowing into the foundation pit. Preferably, the material of the water baffle 106 includes, but is not limited to, stainless steel, aluminum alloy, glass fiber reinforced plastic and concrete.

[0024] In an embodiment, the drainage ditch body 101 and the U-shaped connecting plate 105 are connected by the rivet 107.

[0025] The U-shaped connecting plate 105 is used to connect the drainage ditch units, and the traditional socket connection mode is abandoned. The rivet 107 is used for fixation, and the sealing glue is used for sealing at the connecting position and the rivet hole, thereby enhancing the stability and sealing performance of the connection and reducing the risk of leakage.

[0026] In an embodiment, the pressure-resistant anti-skid cover plate 102 is provided with the dense mesh eye.

[0027] The dense mesh eye is arranged on the pressure-resistant anti-skid cover plate 102, thereby facilitating the rainwater to flow in and preventing the large-diameter sundries from falling into the ditch, and reducing the occurrence of the blocking condition. The filter screen is additionally arranged at the lower side of the pressure-resistant anti-skid cover plate, and the detachable dense mesh pressure-resistant cover plate is used, thereby forming a multi-layer filtering system. The filter screen can effectively intercept the silt and other sundries, reduce the risk of the water ditch blocking, shorten the sedimentation period, and facilitate the secondary use or direct discharge into the municipal pipe network.

[0028] The embodiments of the utility model are described in detail above, but the content described can only be the preferred embodiments of the utility model, and cannot be considered as being used for limiting the implementation range of the utility model. Any equivalent change and improvement made according to the application range of the utility model should still belong to the patent coverage range of the utility model.

Claims

1. A recyclable dewatering trench around a foundation pit, characterized by, A plurality of drainage ditch units are spliced to form the drainage ditch, the drainage ditch unit comprises a drainage ditch body, a pressure bearing anti-skid cover plate, a rubber pad, a filter screen and a U-shaped connecting plate, the pressure bearing anti-skid cover plate is arranged on the upper end of the drainage ditch body, the rubber pad is arranged at the contact position of the pressure bearing anti-skid cover plate and the drainage ditch body, the filter screen is arranged inside the drainage ditch body, and the drainage ditch units are connected through the U-shaped connecting plate.

2. The recyclable dewatering trench around the foundation pit according to claim 1, characterized in that: The drainage ditch body adopts an arc corner structure at a turning position.

3. The recyclable perimeter trench for excavations according to claim 2, characterized in that: A water baffle is arranged in the road surface on the two sides of the drainage ditch body.

4. The recyclable perimeter trench for excavations according to claim 3, characterized in that: The drainage ditch body and the U-shaped connecting plate are connected through rivets.

5. The recyclable perimeter trench for excavations of claim 1, wherein: A plurality of small holes are arranged on the pressure bearing anti-skid cover plate.

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