Water diversion structure of side wall of foundation pit

Abstract

The utility model discloses a water diversion structure of a side wall of a foundation pit, which comprises a construction land, a drainage ditch arranged at the top of the construction land, a foundation pit main body fixedly connected to the inner side of the construction land, a water retaining ditch fixedly connected to the inner wall of the foundation pit main body, a drainage port arranged at the inner side of the water retaining ditch, and a drainage support fixedly connected to the bottom of the water retaining ditch. A water outlet is formed in one side of the drainage support, a drainage pipe is fixedly connected to the other side of the drainage support, a water inlet is formed in the outer surface of the drainage pipe, a filter screen is installed on the outer side of the drainage pipe, a water collecting ditch and a water collecting well are formed in the bottom of the foundation pit body, and a water filtering pad is laid on the outer side, away from the water collecting ditch, of the bottom of the foundation pit body. The water diversion structure on the side wall of the foundation pit can drain accumulated water in the soil layer, the sinking pressure of the construction land is reduced, the situation that the strength of the side wall of the foundation pit body is reduced due to the fact that the side wall is soaked by rainwater is avoided, and therefore safety accidents caused by construction land collapse are prevented.

Description

Technical Field

[0001] This utility model relates to the technical field of foundation pit drainage structure, specifically a water diversion structure for the sidewall of a foundation pit. Background Technology

[0002] An excavation pit is a pit dug at the foundation design location according to the base elevation and foundation plan dimensions. Before excavation, an excavation plan should be developed based on geological and hydrological data, combined with the conditions of nearby buildings, and waterproofing and drainage work should be carried out. For shallow excavations, slope protection can be used to stabilize the soil slope, and the slope should be determined according to relevant construction regulations. For deeper excavations or those near nearby buildings, excavation pit wall support methods, shotcrete wall protection methods, and even methods such as diaphragm walls and interlocking column-type bored piles can be used to prevent the outer soil layer from collapsing. For excavations without the impact of nearby buildings, the wellpoint method can be used to lower the groundwater level, and open excavation with slope protection can be adopted. In cold regions, natural freezing methods can be used for excavation, etc.

[0003] Existing patent document CN209066466U discloses a water diversion structure for the sidewall of an excavation pit, belonging to the field of excavation pit drainage structures. It includes an anchoring frame laid around the perimeter of the excavation pit, with anchoring rods inserted into the sidewalls of the pit connected to the anchoring frame. A water-draining rope is fixedly connected to the sidewall of each anchoring rod along its length. The anchoring frame is hollow, with one end of the water-draining rope passing through it. A water collection tank is connected to the bottom of the anchoring frame. This invention effectively collects seepage water from the sidewalls of the excavation pit, preventing water accumulation in uneven areas, thus facilitating construction and eliminating safety hazards.

[0004] However, in the use of existing water diversion structures for foundation pit sidewalls, rainwater seeps into the soil layer of the foundation pit during rainy weather. Because the drainage system cannot divert the water accumulated in the soil layer, when a large amount of rainwater accumulates in the soil, it will generate a large sinking pressure, causing the foundation pit sidewall to be unable to withstand it, resulting in collapse and triggering safety accidents. To address this issue, we propose a water diversion structure for foundation pit sidewalls. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the shortcomings of the prior art, this utility model provides a water diversion structure for the sidewall of a foundation pit to solve the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a water diversion structure for the sidewall of a foundation pit, comprising a construction site, a drainage ditch at the top of the construction site, a foundation pit body fixedly connected to the inner side of the construction site, a water-retaining ditch fixedly connected to the inner wall of the foundation pit body, a drainage outlet at the inner side of the water-retaining ditch, a drainage support fixedly connected to the bottom of the water-retaining ditch, a water outlet at one side of the drainage support, a drainage pipe fixedly connected to the other side of the drainage support, a water inlet at the outer surface of the drainage pipe, a filter screen installed on the outer side of the drainage pipe, a water collection ditch and a water collection well at the bottom of the foundation pit body, and a filter pad laid on the outer side of the bottom of the foundation pit body away from the water collection ditch.

[0009] Preferably, multiple drainage pipes and filter screens are provided, and each of the multiple drainage pipes and filter screens penetrates from the outside to the inside of the foundation pit body and the construction land.

[0010] Preferably, the filter pad is made of geotextile material and is laid along the outside of the water collection ditch.

[0011] Preferably, the filter screen has a cylindrical mesh structure and is woven from stainless steel wire.

[0012] Preferably, there are multiple water inlets, all of the same size, and all of the water inlets are arranged at equal intervals.

[0013] Preferably, the foundation pit body is made of reinforced concrete, and the foundation pit body is fixedly connected to the drainage support.

[0014] Beneficial effects

[0015] This utility model provides a water diversion structure for the sidewall of a foundation pit, which has the following beneficial effects:

[0016] (1) The water diversion structure of this type of foundation pit sidewall, through the installation of drainage pipes, inlets and filter screens, when rainwater seeps into the soil of the construction site during rainy weather, the rainwater will be filtered through the filter screen and flow into the drainage pipe through the inlet because the drainage pipe is embedded in the foundation pit body and the construction site. At this time, the rainwater enters the drainage support through the drainage pipe, and then is discharged from the drainage outlet and flows into the collection ditch, and then enters the collection well for collection. This allows the water diversion structure of the foundation pit sidewall to divert the water accumulated in the soil layer, reduce the subsidence pressure of the construction site, and thus avoid the safety accident caused by the collapse of the construction site.

[0017] (2) The water diversion structure of this type of foundation pit sidewall is constructed by setting up water-blocking ditches and drainage supports. When it rains, rainwater can be collected from the construction land through the drainage ditches, while some rainwater flows down along the sidewall of the foundation pit body. At this time, the water-blocking ditches will collect the rainwater flowing down the sidewall of the foundation pit body. Then the rainwater flows into the drainage support through the drainage outlet and is discharged from the drainage outlet, thereby avoiding the sidewall of the foundation pit body from being soaked by rainwater and thus reducing its strength. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a partial structural schematic diagram of the construction land of this utility model;

[0020] Figure 3 This is a partial structural schematic diagram of the foundation pit of this utility model;

[0021] Figure 4 This is a partial structural schematic diagram of the drainage support of this utility model.

[0022] In the diagram: 1. Construction site; 2. Drainage ditch; 3. Foundation pit; 4. Water retaining ditch; 5. Drainage outlet; 6. Drainage support; 7. Water outlet; 8. Water collection ditch; 9. Water collection well; 10. Filter pad; 11. Drainage pipe; 12. Water inlet; 13. Filter screen. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a water diversion structure for the sidewall of a foundation pit, including a construction land 1, a drainage ditch 2 on the top of the construction land 1, a foundation pit body 3 fixedly connected to the inner side of the construction land 1, a water retaining ditch 4 fixedly connected to the inner wall of the foundation pit body 3, a drainage outlet 5 on the inner side of the water retaining ditch 4, a drainage support 6 fixedly connected to the bottom of the water retaining ditch 4, a water outlet 7 on one side of the drainage support 6, a drainage pipe 11 fixedly connected to the other side of the drainage support 6, a water inlet 12 on the outer surface of the drainage pipe 11, a filter screen 13 installed on the outer side of the drainage pipe 11, a water collection ditch 8 and a water collection well 9 respectively opened at the bottom of the foundation pit body 3, and a filter pad 10 laid on the outer side of the bottom of the foundation pit body 3 away from the water collection ditch 8.

[0025] Furthermore, multiple drainage pipes 11 and filter screens 13 are provided. The multiple drainage pipes 11 and filter screens 13 pass through the foundation pit body 3 and the construction land 1 from the outside to the inside. The drainage pipes 11 can collect water in the soil and discharge the water in the soil in a timely manner.

[0026] Furthermore, the filter pad 10 is made of geotextile material and is laid along the outside of the water collection ditch 8. The filter pad 10 made of geotextile material can block the soil and prevent the soil from flowing into the water collection ditch 8.

[0027] Furthermore, the filter screen 13 has a cylindrical mesh structure and is woven from stainless steel wire. The filter screen 13 can block mud and prevent mud from clogging the water inlet 12.

[0028] Furthermore, multiple inlets 12 are provided, all of the same size, and are arranged at equal intervals. Water in the soil can be quickly discharged into the drain pipe 11 through the inlets 12.

[0029] Furthermore, the main body of the foundation pit 3 is made of reinforced concrete and is fixedly connected to the drainage support 6, making the main body of the foundation pit 3 more robust and durable, able to withstand greater pressure, and thus less prone to collapse.

[0030] Working Principle: After installation, first check the installation, fixation, and safety protection of this utility model. When it rains, the drainage ditch 2 can block rainwater from flowing into the main body of the foundation pit 3, preventing most of the rainwater on the construction land 1 from flowing into the foundation pit body 3. Some rainwater flows down the side wall of the foundation pit body 3. At this time, the water-blocking ditch 4 will collect the rainwater flowing down the side wall of the foundation pit body 3. Then, the rainwater flows into the drainage support 6 through the drainage outlet 5 and is discharged from the drainage outlet 5. When the rainwater seeps into the soil of the construction land 1, the drainage pipe 11 is embedded in the foundation pit body 3 and the construction land 1. At this time, the rainwater will be filtered through the filter screen 13 and flow into the drainage pipe 11 through the inlet 12. Then, the rainwater enters the drainage support 6 through the drainage pipe 11 and is discharged from the drainage outlet 5, flowing into the collection ditch 8 and then into the collection well 9 for collection. This completes the use of this utility model. This utility model has a simple structure and is safe and convenient to use.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water diversion structure for the sidewall of a foundation pit, comprising construction land (1), characterized in that: A drainage ditch (2) is provided on the top of the construction land (1). A foundation pit body (3) is fixedly connected to the inner side of the construction land (1). A water retaining ditch (4) is fixedly connected to the inner wall of the foundation pit body (3). A drainage outlet (5) is provided on the inner side of the water retaining ditch (4). A drainage support (6) is fixedly connected to the bottom of the water retaining ditch (4). A water outlet (7) is provided on one side of the drainage support (6). A drainage pipe (11) is fixedly connected to the other side of the drainage support (6). A water inlet (12) is provided on the outer surface of the drainage pipe (11). A filter screen (13) is installed on the outer side of the drainage pipe (11). A water collection ditch (8) and a water collection well (9) are provided at the bottom of the foundation pit body (3). A filter pad (10) is laid on the outer side of the bottom of the foundation pit body (3) away from the water collection ditch (8).

2. The water diversion structure for the sidewall of a foundation pit according to claim 1, characterized in that: Multiple drainage pipes (11) and filter screens (13) are provided, and the multiple drainage pipes (11) and filter screens (13) pass through the main body of the foundation pit (3) and the construction land (1) from the outside to the inside.

3. The water diversion structure for the sidewall of a foundation pit according to claim 1, characterized in that: The filter pad (10) is made of geotextile material and is laid along the outside of the water collection ditch (8).

4. The water diversion structure for the sidewall of a foundation pit according to claim 1, characterized in that: The filter screen (13) has a cylindrical mesh structure and is woven from stainless steel wire.

5. The water diversion structure for the sidewall of a foundation pit according to claim 1, characterized in that: The water inlet (12) is provided in multiple ways, and the multiple water inlets (12) are the same size and are arranged at equal intervals.

6. The water diversion structure for the sidewall of a foundation pit according to claim 1, characterized in that: The main body of the foundation pit (3) is made of reinforced concrete and is fixedly connected to the drainage support (6).

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