A buried drainage and discharge system based on a foundation pit supporting structure

Abstract

The application discloses a kind of based on foundation pit supporting structure's dark burying drainage reusing system, comprising: connecting wall, precipitation collection pipe, sedimentation tank and precipitation collection tank;The connecting wall is arranged along the side wall of foundation pit, the top of the connecting wall is provided with water-collecting cavity, the top of the water-collecting cavity is provided with rainwater collection grate, to collect ground rainwater;The precipitation collection pipe is arranged in the water-collecting cavity, the precipitation collection pipe is used to communicate with the precipitation well at the bottom of the foundation pit, to collect the sediment water at the bottom of foundation pit;The sedimentation tank is communicated with the water-collecting cavity, and the sedimentation tank is provided with a drain on the side wall thereof;The precipitation collection tank is connected with the drain by water delivery pipe, and the precipitation collection tank is suitable for water supply to water-using equipment.

Description

Technical Field

[0001] This invention relates to the field of building drainage reuse technology, specifically to a buried drainage reuse system based on a foundation pit support structure. Background Technology

[0002] Deep foundation pits refer to excavations exceeding 5 meters in depth or having more than three basement levels, or projects with particularly complex geological conditions, surrounding environment, and underground pipelines even if the depth does not exceed 5 meters. During excavation, large amounts of water can easily seep into the pit, severely impacting construction progress. Therefore, it is essential to remove the water from the pit promptly. The foundation pit support structure must ensure the safety of the entire structure during construction while controlling the deformation of the support structure and its surrounding soil to guarantee the safety of the surrounding environment. Deep and large foundation pits, as well as those with high safety requirements, often employ internally braced support structures.

[0003] Drainage mechanisms should be installed near the foundation pit to drain the surrounding water. Most existing drainage methods directly discharge the water flowing into the channel to the outside, resulting in a waste of water resources. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the waste of water resources caused by directly discharging drainage during the excavation of the foundation pit in the prior art, and to provide a buried drainage reuse system based on the foundation pit support structure that can realize the reuse of water resources.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0006] A buried dewatering and drainage reuse system based on a foundation pit support structure includes: a connecting wall, a dewatering collection pipe, a sedimentation tank, and a dewatering collection pool; the connecting wall is arranged along the side wall of the foundation pit, and a water collection cavity is provided at the top of the connecting wall, with a rainwater collection grate at the top of the water collection cavity for collecting surface rainwater; the dewatering collection pipe is located inside the water collection cavity and is used to communicate with a dewatering well at the bottom of the foundation pit to collect sediment water at the bottom of the foundation pit; the sedimentation tank is connected to the water collection cavity, and a drain outlet is provided above the side wall of the sedimentation tank; the dewatering collection pool is connected to the drain outlet through a water supply pipe, and the dewatering collection pool is suitable for supplying water to water-using equipment.

[0007] According to some embodiments of the present invention, a retaining wall is provided on the top of the side of the connecting wall near the foundation pit, and the retaining wall and the guide wall on the side away from the foundation pit enclose the water collection cavity to form the water collection cavity. The water collection cavity has a closed ring structure and is arranged around the foundation pit.

[0008] According to some embodiments of the present invention, multiple rainwater collection pipes and rainwater collection grates are provided and are arranged alternately along the length of the water collection cavity, and the water collection cavity forms a water conveyance pipeline along the length.

[0009] According to some embodiments of the present invention, the rainwater collection pipe is a tee pipe, with one end extending out of the ground.

[0010] According to some embodiments of the present invention, a plurality of manholes are provided at intervals within the water collection cavity, and the manholes are suitable for maintenance of the water supply pipeline.

[0011] According to some embodiments of the present invention, the sedimentation tank is covered with a cover plate, which is a steel plate.

[0012] According to some embodiments of the present invention, the buried dewatering and drainage reuse system based on the foundation pit support structure further includes a pump, the inlet of which is connected to the dewatering well in the foundation pit, and the outlet of which extends to be connected to one end of the dewatering collection pipe.

[0013] According to some embodiments of the present invention, the rainwater collection tank is provided with a reinforcing baffle, the reinforcing baffle is arranged longitudinally, and the bottom of the reinforcing baffle is provided with a plurality of flow holes.

[0014] According to some embodiments of the present invention, the top of the side wall of the rainwater collection pool is provided with an overflow outlet.

[0015] According to some embodiments of the present invention, the water-using equipment is fire-fighting equipment, a fire station is provided on the top of the rainwater collection pool, a fire pump is provided in the fire station, the inlet of the fire pump is connected to the rainwater collection pool, and the outlet of the fire pump is connected to the fire-fighting equipment.

[0016] The technical solution of this invention has the following advantages:

[0017] 1. The buried dewatering and drainage reuse system based on the foundation pit support structure provided by this invention involves setting a water collection chamber at the top of the connecting wall, with a rainwater collection grate at the top of the water collection chamber to collect rainwater from the surface outside the foundation pit. A rainwater collection pipe is installed inside the water collection chamber, connected to a rainwater collection pool inside the foundation pit to collect sedimentation water within the pit. After sedimentation and filtration in a sedimentation tank, the rainwater and sedimentation water flow into the rainwater collection pool for supplying water to water-using equipment. This buried dewatering and drainage reuse system based on the foundation pit support structure fully reuses rainwater around and inside the foundation pit, thereby reducing water waste.

[0018] 2. The buried drainage reuse system based on the foundation pit support structure provided by the present invention has multiple manholes built in the water collection cavity. The manholes are used to inspect and maintain the water supply pipeline in the water collection cavity, thereby avoiding the accumulation of debris in the pipeline and affecting the smooth flow of the water supply pipeline.

[0019] 3. The buried drainage reuse system based on the foundation pit support structure provided by the present invention sets up a retaining wall on the top of the connecting wall near the foundation pit. The retaining wall and the guide wall on the side away from the foundation pit form a water collection cavity, which is suitable for collecting rainwater from the ground outside the foundation pit. At the same time, it realizes buried drainage, avoids laying pipelines on the ground, and extends the service life of pipelines.

[0020] 4. The buried dewatering and drainage reuse system based on the foundation pit support structure provided by the present invention allows rainwater around the foundation pit and sediment water inside the foundation pit to enter a sedimentation tank for sedimentation before entering the dewatering collection tank. After large particles settle in the sedimentation tank, the supernatant overflows from the drain outlet at the top of the side wall into the dewatering collection tank. A cover plate is provided above the sedimentation tank to facilitate timely cleaning of sediments and prevent sediments from entering the dewatering collection tank and causing blockage of the pipeline.

[0021] 5. The buried dewatering and drainage reuse system based on the foundation pit support structure provided by the present invention has a reinforced baffle installed in the dewatering collection tank. The reinforced baffle is set to provide support for the fire station. Multiple flow holes are opened at the bottom of the reinforced baffle to ensure that the two cavities on both sides of the reinforced baffle are interconnected. An overflow port is set at the top of the reinforced baffle. When the flow holes at the bottom are blocked, the dewatering in the cavities on both sides of the reinforced baffle can be interconnected, avoiding excessive pressure on one side and affecting the structural stability. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a top view of a buried drainage and reuse system based on a foundation pit support structure provided in some embodiments of the present invention;

[0024] Figure 2 This is a cross-sectional view of a buried drainage reuse system based on a foundation pit support structure provided in some embodiments of the present invention.

[0025] Explanation of reference numerals in the attached drawings: 1. Connecting wall; 2. Rainwater collection pipe; 3. Sedimentation tank; 4. Rainwater collection tank; 5. Reinforcing partition; 6. Water-using equipment; 7. Guide wall; 11. Water collection cavity; 12. Rainwater collection grate; 13. Retaining wall; 31. Drainage outlet; 32. Cover plate; 41. Overflow outlet; 51. Flow hole. Detailed Implementation

[0026] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] Reference Figure 1 and Figure 2 As shown, some embodiments of the present invention propose a buried dewatering and drainage reuse system based on a foundation pit support structure, including: a connecting wall 1, a dewatering collection pipe 2, a sedimentation tank 3, and a dewatering collection pool 4; the connecting wall 1 is arranged along the side wall of the foundation pit, and a water collection cavity 11 is provided at the top of the connecting wall 1, and a rainwater collection grate 12 is provided at the top of the water collection cavity 11 for collecting ground rainwater; the dewatering collection pipe 2 is arranged in the water collection cavity 11, and one end of the pipe extends out of the ground, and the dewatering collection pipe 2 is used to communicate with the dewatering well at the bottom of the foundation pit to collect the sedimented water at the bottom of the foundation pit; the sedimentation tank 3 is connected to the water collection cavity 11, and a drain outlet 31 is provided above the side wall of the sedimentation tank 3; the dewatering collection pool 4 is connected to the drain outlet 31 through a water supply pipe, and the dewatering collection pool 4 is suitable for supplying water to water-using equipment 6.

[0031] Specifically, a water collection chamber 11 is installed at the top of the connecting wall 1, and a rainwater collection grate 12 is installed at the top of the water collection chamber 11 to collect rainwater from the surface outside the foundation pit. A rainwater collection pipe 2 is installed inside the water collection chamber 11, with one end extending out of the ground to connect with a rainwater collection pool inside the foundation pit, suitable for collecting sedimentation water within the foundation pit. After sedimentation and filtration in a sedimentation tank 3, the rainwater and sedimentation water in the foundation pit flow into the rainwater collection pool 4, suitable for supplying water to the water-using equipment 6. This buried rainwater drainage reuse system based on the foundation pit support structure fully reuses rainwater around and inside the foundation pit by utilizing the foundation pit support structure, thereby reducing water waste.

[0032] It should be noted that using the foundation pit support structure as the basis for the buried dewatering system can collect both foundation pit dewatering and surface water, expand the usable land on site, and facilitate the horizontal transport of personnel and materials.

[0033] It is understood that, in some embodiments of the present invention, the average depth of the foundation pit is 22m, and the total excavation volume of the foundation pit is approximately 88,954m³. 3 The foundation pit covers an area of ​​approximately 3962.7m². 2 The thickness of the connecting wall 1 is 800mm, and reinforcing support frames are installed at the four top corners of the connecting cavity to improve strength.

[0034] In some embodiments of the present invention, a retaining wall 13 is provided on the top of the side of the connecting wall 1 near the foundation pit. The retaining wall 13 and the guide wall 7 on the side away from the foundation pit form a water collection cavity 11. The water collection cavity 11 has a closed ring structure and is arranged around the foundation pit.

[0035] Specifically, the connecting wall 1 is arranged circumferentially along the sidewall of the foundation pit, forming a closed structure to support the foundation pit. A water collection chamber 11 is arranged at the top of the connecting wall 1 along the circumference of the foundation pit. The water collection chamber 11 is enclosed by a retaining wall 13 and a guide wall 7 on the side away from the foundation pit, forming a ring structure. The water collection chamber 11 is used to house rainwater collection grates 12, suitable for temporarily storing rainwater around the foundation pit and sediment water within the foundation pit.

[0036] It is understandable that the retaining wall 13 is set on the top of the connecting wall 1 on the side close to the foundation pit. The retaining wall 13 and the guide wall 7 on the side away from the foundation pit form a water collection cavity 11, which is suitable for collecting rainwater from the ground outside the foundation pit. At the same time, it realizes buried drainage, avoids laying pipelines on the ground, and extends the service life of the pipelines.

[0037] Specifically, the buried drainage system is installed using the foundation pit support structure. The buried pipes are all surrounded by concrete, which can effectively protect the buried pipes and prevent them from being easily damaged by external factors.

[0038] In some embodiments of the present invention, multiple rainwater collection pipes 2 and rainwater collection grates 12 are provided and are arranged alternately along the length direction of the water collection chamber 11, forming a water conveyance pipeline along the length direction of the water collection chamber 11.

[0039] Specifically, in some embodiments of the present invention, the rainwater collection pipe 2 is a T-shaped pipe, with one end of the pipe extending out of the ground.

[0040] In some embodiments of the present invention, a plurality of manholes are provided at intervals in the water collection cavity 11, and the manholes are suitable for maintenance of the water supply pipeline.

[0041] Specifically, multiple manholes are brick-built inside the water collection chamber 11. These manholes are used for the maintenance of the water supply pipeline inside the water collection chamber 11, thereby preventing debris from accumulating in the pipeline and affecting the smooth flow of the water supply pipeline.

[0042] In some embodiments of the present invention, a cover plate 32 is provided on the top of the sedimentation tank 3, and the cover plate 32 is a steel plate.

[0043] Specifically, before entering the rainwater around the foundation pit and the sediment in the foundation pit, the rainwater enters the sedimentation tank 3 for sedimentation. After the large particles settle in the sedimentation tank 3, the supernatant overflows from the drain outlet 31 at the top of the side wall into the rainwater collection tank 4. A cover plate 32 is provided above the sedimentation tank 3 to facilitate timely cleaning of sediments and prevent sediments from entering the rainwater collection tank 4 and causing blockage of the pipeline.

[0044] Understandably, the cover plate 32 is made of steel plate. By using alloy materials, its strength is improved and collapse is prevented. In addition, steel has good corrosion resistance, which can extend its service life.

[0045] In some embodiments of the present invention, the buried dewatering and drainage reuse system based on the foundation pit support structure further includes a water pump, the water inlet of which is connected to the dewatering well in the foundation pit, and the water outlet of which extends to be connected to one end of the dewatering collection pipe 2.

[0046] In some embodiments of the present invention, a reinforcing baffle 5 is provided in the rainwater collection tank 4. The reinforcing baffle 5 is arranged longitudinally, and a plurality of flow holes 51 are provided at the bottom of the reinforcing baffle 5.

[0047] Specifically, a reinforcing baffle 5 is installed inside the rainwater collection pool 4. The reinforcing baffle 5 is designed to support the box-shaped structure at the top of the rainwater collection pool 4. Multiple flow holes 51 are opened at the bottom of the reinforcing baffle 5 to ensure that the two cavities on both sides of the reinforcing baffle 5 are interconnected.

[0048] Understandably, multiple reinforcing partitions 5 can be installed to increase the support strength and prevent the box-shaped structure above the rainwater collection pool 4 from collapsing.

[0049] In some embodiments of the present invention, the top of the side wall of the rainwater collection pool 4 is provided with an overflow outlet 41.

[0050] Specifically, when the water in the rainwater collection pool 4 reaches a certain level, it is discharged through the overflow outlet 41 to avoid damage to the water-using equipment 6 on top.

[0051] In some embodiments of the present invention, the water-using equipment 6 is a fire-fighting equipment, a fire station is provided on the top of the rainwater collection pool 4, a fire pump is installed in the fire station, the inlet of the fire pump is connected to the rainwater collection pool 4, and the outlet of the fire pump is connected to the fire-fighting equipment.

[0052] Specifically, water-using equipment 6 can be fire-fighting equipment. A fire station is set up on top of the rainwater collection pool 4, and water is drawn from the rainwater collection pool 4 by a fire pump to supply water to the fire-fighting equipment.

[0053] It is understood that the water-using equipment 6 can also be other equipment such as landscaping equipment, and the type of water-using equipment 6 is not a limitation of the present invention.

[0054] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A buried drainage and reuse system based on a foundation pit support structure, characterized in that, include: A connecting wall (1) is provided along the side wall of the foundation pit. A water collection cavity (11) is provided at the top of the connecting wall (1). A rainwater collection grate (12) is provided at the top of the water collection cavity (11) to collect rainwater from the ground. Rainwater collection pipe (2) is installed in the water collection cavity (11). The rainwater collection pipe (2) is used to connect with the rainwater well at the bottom of the foundation pit to collect the sediment water at the bottom of the foundation pit. The rainwater collection pipe (2) is a T-shaped pipe with one end extending out of the ground. Multiple rainwater collection pipes (2) and rainwater collection grates (12) are provided and are arranged alternately along the length of the water collection cavity (11). The water collection cavity (11) forms a water conveyance pipeline along its length. Multiple manholes are provided at intervals in the water collection cavity (11). The manholes are suitable for maintenance of the water conveyance pipeline. A sedimentation tank (3) is connected to the water collection chamber (11), and a drain outlet (31) is provided on the upper side wall of the sedimentation tank (3); a cover plate (32) is provided on the upper part of the sedimentation tank (3), and the cover plate (32) is made of steel plate; a rainwater collection tank (4) is connected to the drain outlet (31) through a water supply pipe, and the rainwater collection tank (4) is suitable for supplying water to water-using equipment (6); a reinforcing baffle (5) is provided inside the rainwater collection tank (4), the reinforcing baffle (5) is arranged longitudinally, a plurality of flow holes (51) are opened at the bottom of the reinforcing baffle (5), and an overflow outlet (41) is provided at the top of the reinforcing baffle (5); The connecting wall (1) has a retaining wall (13) on the top of the side near the foundation pit. The retaining wall (13) and the guide wall (7) on the side away from the foundation pit enclose the water collection cavity (11). The water collection cavity (11) has a closed ring structure and is arranged around the foundation pit.

2. The buried dewatering and drainage reuse system based on foundation pit support structure according to claim 1, characterized in that, It also includes a water pump, the inlet of which is connected to the dewatering well in the foundation pit, and the outlet of which extends to be connected to one end of the dewatering collection pipe (2).

3. The buried dewatering and drainage reuse system based on foundation pit support structure according to claim 1, characterized in that, The rainwater collection pool (4) has an overflow outlet (41) at the top of its side wall.

4. The buried dewatering and drainage reuse system based on foundation pit support structure according to claim 3, characterized in that, The water-using equipment (6) is a fire-fighting equipment. A fire station is set up on the top of the rainwater collection pool (4). A fire pump is installed in the fire station. The inlet of the fire pump is connected to the rainwater collection pool (4), and the outlet of the fire pump is connected to the fire-fighting equipment.

Images