A water seepage treatment structure for solving the water seepage problem of the side wall and bottom of a water accumulation pit

Abstract

The utility model discloses a kind of water seepage treatment structures for solving water seepage problems of water pit side wall, bottom, comprising: sandless filter tube, pre-buried setting in water pit bottom;Drain pipe, its lower end is connected with the top of sandless filter tube, water pit is sequentially provided with gravel layer, cushion layer, waterproof layer and structure layer, the upper end of drain pipe vertically extends and sequentially passes through gravel layer, cushion layer and waterproof layer and is buried in structure layer after;Waterproof additional layer, be located at drain pipe root position, part is laid on cushion layer, another part is turned up to drain pipe on, the waterproof layer is located waterproof additional layer outside and is turned up to drain pipe on drain pipe root position;Water-stop steel plate, be located at the periphery of drain pipe, concrete filling layer, fill in being located in sandless filter tube and drain pipe inside.This application blocks and discharges in combination, specimen is compatible with treatment, prevents design, long-acting reliable.

Description

Technical Field

[0001] This utility model relates to the technical field of building construction or municipal drainage, and in particular to a seepage treatment structure for solving the problem of water seepage on the side walls and bottom of sump pits. Background Technology

[0002] In building construction projects, such as basement elevator shaft pits and underground garage water collection pits, or in municipal engineering projects, such as rainwater collection pits, water collection pits are prone to continuous water seepage due to long-term water storage. This can be caused by concrete cracks, poor sealing of construction joints, or leakage in the base layer, which can affect the structural safety performance.

[0003] Existing methods for treating seepage have certain limitations: First, applying waterproof coatings to the surface can only treat surface leaks and cannot solve deep seepage from cracks in the base layer or structural gaps, leading to a high recurrence rate in the short term. Second, installing drainage pipes requires excavating trenches inside the sump, damaging the original structure of the sump, and the drainage pipes are prone to clogging due to silt, resulting in high maintenance costs. Third, high-pressure grouting for water plugging requires specialized equipment, has a long construction period, and is not economical for small-area, scattered leaks.

[0004] Therefore, there is a need for a seepage treatment structure that is simple in structure, easy to install, can take into account both "water blocking and drainage" functions, and is adaptable to various sizes of water sump pits, in order to solve the existing shortcomings. Utility Model Content

[0005] This utility model provides a seepage treatment structure for solving the problem of water seepage on the side walls and bottom of a sump.

[0006] The technical problem to be solved is that existing seepage treatment methods cannot solve the problem of deep seepage in basement cracks or structural gaps, and the problem of easy recurrence in the short term.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This utility model discloses a seepage treatment structure for solving the problem of water seepage on the sidewalls and bottom of sump pits, comprising: Sand-free filter pipes are pre-embedded at the bottom of the water collection pit; The drainage pipe fitting has its lower end connected to the top of the sand-free filter pipe. The water collection pit is provided with a gravel layer, a cushion layer, a waterproof layer and a structural layer in sequence. The upper end of the drainage pipe fitting extends vertically upward and passes through the gravel layer, the cushion layer and the waterproof layer in sequence before being buried in the structural layer. A waterproof additional layer is provided at the root of the drainage pipe fitting. Part of it is laid on the padding layer, and the other part is turned up and wrapped around the drainage pipe fitting. The waterproof layer is located outside the waterproof additional layer and turned up and wrapped around the drainage pipe fitting at the root of the drainage pipe fitting. A water-stop steel plate is set on the outer periphery of the drainage pipe fitting. Its end is turned up to form a folded edge. The inner side of the folded edge is provided with internal threads. The waterproof layer and the additional waterproof layer are turned up to the water-stop steel plate and wrapped around the inner side of the folded edge. A locking member is fitted on the drainage pipe fitting. The outer periphery of the locking member is provided with external threads that mate with the internal threads. The locking member, together with the waterproof layer and the additional waterproof layer, is connected to the folded edge threads to achieve a seal. A concrete filling layer is used to fill the sand-free filter pipes and drainage pipe fittings.

[0008] This utility model provides a seepage treatment structure for solving the problem of water seepage on the side walls and bottom of a sump. Furthermore, the locking member is a ring structure with holes that are adapted to the diameter of the drainage pipe.

[0009] This utility model provides a seepage treatment structure for solving the problem of water seepage on the side walls and bottom of a puddles. Furthermore, the locking member is provided with a polygonal groove for cooperating with a tightening tool to rotate the locking member.

[0010] This utility model discloses a seepage treatment structure for solving the problem of water seepage on the sidewalls and bottom of a water collection pit. Furthermore, a gravel filling layer is provided around the area of ​​the sand-free filter pipe at the bottom of the water collection pit. The gravel filling layer is located in the area over-excavated downward with the sand-free filter pipe as the center.

[0011] This utility model provides a seepage treatment structure for solving the problem of water seepage on the side walls and bottom of a sump. Furthermore, the drainage pipe is a galvanized steel pipe, the lower end of which extends into and is fixed inside a sand-free filter pipe.

[0012] This utility model discloses a seepage treatment structure for solving the problem of water seepage on the side walls and bottom of a sump pit. Furthermore, the waterproof layer and the additional waterproof layer are SBS modified bitumen waterproof membrane.

[0013] This utility model provides a seepage treatment structure for solving the problem of water seepage on the side walls and bottom of a sump. Furthermore, the drain pipe fitting is provided with a sealing cap at the pipe opening.

[0014] Compared with the prior art, this utility model has the following advantages: 1. Combining blocking and drainage to address both symptoms and root causes: During the construction phase, seepage water is actively drained through sand-free filter pipes and drainage pipe fittings to ensure the working surface is dry; after the main structure is completed and the seepage is stabilized, concrete can be poured into the pipe openings to permanently seal the seepage channels and eliminate them. 2. Anti-clogging design, long-term reliability: The sand-free filter pipe, combined with the outer gravel layer, can effectively prevent mud and sand from directly clogging the seepage channels, ensuring the long-term effectiveness of the drainage system during construction; 3. By adding a layer of crushed stone, the load on the upper structure can be dispersed to a certain extent, which can play a role in stress diffusion and reduce the phenomenon of water seepage caused by cracks or gaps in the structural layer to a certain extent. 4. A new type of waterproof layer edge-sealing structure is designed. Compared with the traditional clamp fixing, the sealing degree depends on manual operation, the sealing effect is not good, and there is a serious risk of water seepage in the later stage. The waterproof layer and the waterproof additional layer are sealed and connected by locking parts, which changes the original water seepage path. The sealing effect is less dependent on manual operation and has a better sealing effect.

[0015] The present invention will be further described below with reference to the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram showing the combination of the water-stop steel plate and the waterproof layer of this utility model; Figure 3 This is a planar schematic diagram of the locking component of this utility model.

[0017] Figure label: 1. Sump; 2. Sand-free filter pipe; 3. Drainage fittings; 4. Additional waterproof layer; 5. Water-stop steel plate; 6. Concrete filling layer; 7. Crushed stone filling layer; 8. Crushed stone layer; 9. Subbase; 10. Waterproof layer; 11. Structural layer; 12. Folded edge; 13. Locking parts; 14. Groove. Detailed Implementation

[0018] like Figures 1-3 As shown, this utility model discloses a seepage treatment structure for solving the problem of water seepage on the sidewalls and bottom of a sump pit. It includes a sump pit 1, a sand-free filter pipe 2, a drainage pipe fitting 3, a waterproof additional layer 4, a water-stop steel plate 5, and a concrete filling layer 6. A sand-free filter pipe 2 is installed at the center of the bottom of the sump pit 1. The top of the sand-free filter pipe 2 is at the same elevation as the bottom of the sump pit 1. In this embodiment, the outer diameter of the sand-free filter pipe 2 is 400mm, the length is 950mm, and the wall thickness is 50mm. With the sand-free filter pipe 2 as the center, it is over-dug downwards by about 200mm within a 1m×1m range to form an over-dug area. Crushed stone is then laid in this area to form a crushed stone filling layer 7 to prevent fine sand from blocking the sidewall of the sand-free filter pipe 2 and to ensure that water can flow into the sand-free filter pipe 2 through the crushed stone.

[0019] In this embodiment, the drainage pipe fitting 3 is a DN250 galvanized steel pipe with a wall thickness of 5mm, and its length is determined based on the thickness of the raft slab. The lower end of the drainage pipe fitting 3 is inserted into the top of the sand-free filter pipe 2 about 100mm away and fixed, wherein the fixing method can be the traditional socket joint method; the upper end extends vertically upward and passes through the gravel layer 8, the cushion layer 9 and the waterproof layer 10 in sequence and is embedded in the structural layer 11.

[0020] The top of the water collection pit 1 is provided with a crushed stone layer 8, a cushion layer 9, a waterproof layer 10 and a structural layer 11 in sequence. The thickness of the crushed stone layer 8 in this embodiment is 200mm, which can disperse the load on the upper structure to a certain extent and play a role in diffusing stress. It can also reduce the phenomenon of water seepage caused by cracks or gaps in the structural layer 11 to a certain extent.

[0021] Before constructing the waterproof layer 10 on the subbase 9, a waterproof reinforcement layer 4 needs to be laid at the root of the drainage pipe fitting 3. Part of the waterproof reinforcement layer 4 is laid on the subbase 9, and the other part is turned up onto the drainage pipe fitting 3, with an upward turning height of not less than 250mm, for waterproof reinforcement treatment. In this embodiment, the waterproof reinforcement layer 4 is a 3mm thick SBS modified bitumen waterproof membrane. The material of the waterproof layer 10 is the same as that of the waterproof reinforcement layer 4. The waterproof layer 10 is located outside the waterproof reinforcement layer 4 and is turned up onto the drainage pipe fitting 3 at the root of the pipe.

[0022] A water-stop steel plate 5 is located on the outer periphery of the drainage pipe fitting 3. It is fixedly connected to the drainage pipe fitting 3 and sealed by welding. The end of the water-stop steel plate 5 is turned up to form a folded edge 12. The inner side of the folded edge 12 is provided with internal threads. The waterproof layer 10 and the additional waterproof layer 4 are turned up to the water-stop steel plate 5 and wrapped around the inner side of the folded edge 12. A locking member 13 is fitted on the drainage pipe fitting 3. The outer periphery of the locking member 13 is provided with external threads that cooperate with the internal threads. The locking member 13 cooperates with the waterproof layer 10 and the additional waterproof layer 4 to achieve a seal by threaded connection with the folded edge 12. Compared with the traditional clamp fixation, the sealing degree depends on manual operation, the sealing effect is not good, and there is a serious risk of water leakage in the later stage. By fixing the waterproof layer 10 and the additional waterproof layer 4 with the locking member 13, the original water leakage path is changed and the sealing effect is good.

[0023] The sand-free filter pipe 2 and the drainage pipe fitting 3 are filled with a concrete filling layer 6. The opening of the drainage pipe fitting 3 is welded with a sealing cap to ensure the sealing effect.

[0024] The locking member 13 is a ring structure with holes that are adapted to the diameter of the drain pipe 3. The upper surface of the locking member 13 is provided with a polygonal groove 14 or a block. The polygonal groove 14 cooperates with a tightening tool to rotate the locking member 13, which facilitates the installation of the locking member 13.

[0025] The installation process is as follows: First, after the water collection pit 1 is excavated to the design elevation, a sand-free filter pipe 2 is installed at the center of the bottom of the pit, with the top of the sand-free filter pipe 2 flush with the bottom of the water collection pit 1. Then, with the sand-free filter pipe 2 as the center, the area is over-excavated downward by about 200mm within a 1m×1m range to form an over-excavated area, and crushed stone is laid in this area to form a crushed stone filling layer 7.

[0026] Then, install the drainage pipe fitting 3. Insert the lower end of the drainage pipe fitting 3 into the top of the sand-free filter pipe 2 and fix it to ensure that it is vertical. Next, carry out the construction of the crushed stone layer 8 and the bedding layer 9. Before the waterproof layer 10 is constructed on the bedding layer 9, a waterproof additional layer 4 needs to be set at the root position of the drainage pipe fitting 3. The waterproof layer 10 and the waterproof additional layer 4 are turned up along the pipe wall to the inside of the folded edge 12 at the root position of the drainage pipe fitting 3. A locking piece is fitted on the drainage pipe fitting 3. Rotate the locking piece to connect the locking piece to the folded edge 12 by thread. During this process, under the action of compression, the waterproof layer 10 and the waterproof additional layer 4 are fixed at the folded edge 12 and achieve a seal.

[0027] Reinforcing steel is tied, and micro-expansion fine stone concrete is poured into drainage pipe fitting 3 and sand-free filter pipe 2 until it is filled. Finally, the pipe opening of drainage pipe fitting 3 is welded and sealed with a sealing cap to complete the overall seepage treatment process. After that, structural layer 11 is poured.

[0028] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A seepage treatment structure for solving the problem of water seepage on the sidewalls and bottom of a sump pit, characterized in that, include: Sand-free filter pipe (2) is pre-embedded at the bottom of water collection pit (1); The drainage pipe fitting (3) is connected at its lower end to the top of the sand-free filter pipe (2). The water collection pit (1) is provided with a gravel layer (8), a cushion layer (9), a waterproof layer (10), and a structural layer (11) in sequence. The upper end of the drainage pipe fitting (3) extends vertically upward and passes through the gravel layer (8), the cushion layer (9), and the waterproof layer (10) in sequence before being buried in the structural layer (11). A waterproof additional layer (4) is provided at the root of the drainage pipe fitting (3), part of which is laid on the pad layer (9) and the other part is turned up and wrapped onto the drainage pipe fitting (3). The waterproof layer (10) is located outside the waterproof additional layer (4) and turned up and wrapped onto the drainage pipe fitting (3) at the root of the drainage pipe fitting (3). A water-stop steel plate (5) is provided on the outer periphery of the drainage pipe fitting (3), and its end is turned up to form a folded edge (12). The inner side of the folded edge (12) is provided with an internal thread. The waterproof layer (10) and the waterproof additional layer (4) are turned up to the water-stop steel plate (5) and wrapped around the inner side of the folded edge (12). A locking member (13) is fitted on the drainage pipe fitting (3). The outer periphery of the locking member (13) is provided with an external thread that mates with the internal thread. The locking member (13) is threaded with the waterproof layer (10) and the waterproof additional layer (4) and the folded edge (12) to achieve a seal. A concrete filling layer (6) is filled inside the sand-free filter pipe (2) and the drainage pipe fitting (3).

2. The seepage treatment structure for solving the problem of seepage on the sidewalls and bottom of a sump pit according to claim 1, characterized in that, The locking element (13) is a ring structure with a hole that matches the diameter of the drain pipe (3).

3. A seepage treatment structure for solving the problem of seepage on the sidewalls and bottom of a sump pit, as described in claim 2, is characterized in that... The locking member (13) is provided with a polygonal groove (14) for cooperating with a tightening tool to rotate the locking member (13).

4. A seepage treatment structure for solving the problem of water seepage on the sidewalls and bottom of a sump pit according to claim 1, characterized in that, The bottom of the water collection pit (1) is surrounded by a gravel filling layer (7) around the sand-free filter pipe (2), and the gravel filling layer (7) is located in the area over-excavated downward with the sand-free filter pipe (2) as the center.

5. A seepage treatment structure for solving the problem of seepage on the sidewalls and bottom of a sump pit according to claim 1, characterized in that, The drainage pipe fitting (3) is a galvanized steel pipe, the lower end of which extends into the sand-free filter pipe (2) and is fixed.

6. A seepage treatment structure for solving the problem of seepage on the sidewalls and bottom of a sump pit according to claim 1, characterized in that, The waterproof layer (10) and the additional waterproof layer (4) are SBS modified bitumen waterproof membranes.

7. A seepage treatment structure for solving the problem of seepage on the sidewalls and bottom of a sump pit according to claim 1, characterized in that, The drain pipe fitting (3) is provided with a sealing cap at the pipe opening.

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