Efficient water collecting and draining device for water-rich depth foundation pit
By designing a retractable drainage pipe and drain head structure in the construction of deep-rich foundation pits, the drainage obstacles caused by the entry of silt and sand is solved, and efficient drainage effect in the collecting channel is achieved.
Patent Information
- Application Number
- CN202420867104.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-04-25
AI Technical Summary
During the construction of deep-water-rich foundation pits, the entry of silt and sand in the water discharge process in the water collection ditches leads to blockage of the drainage pipes, and it is impossible to accurately explore the water collection site or drain the accumulated water, causing precipitation and drainage obstacles.
An efficient drainage device including water collection channel, standing pile, transverse pipeline, telescopic branch pipeline and drain head structure was designed. The telescopic branch pipeline can be adjusted in length and probed into the bottom of the water collection channel. The drainage head structure prevents silt and sand from entering, and combines filtration. The net filters large particulate matter.
The precise exploration and continuous and efficient drainage of drainage pipes are achieved, which avoids silt and sand blockage, and ensures the smooth progress of the water-rich foundation pit.
Smart Images
Figure CN222295037U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of deep foundation pit construction, in particular to a high-efficiency drainage device for a water-rich deep foundation pit. Background Art
[0002] When excavating the foundation pit, the groundwater level is higher than the bottom of the excavation, and the groundwater will continue to seep into the pit. In order to ensure that the foundation pit can be constructed under dry conditions, to prevent slope instability, foundation sand flow, pit bottom uplift, pit bottom pipe burst and foundation bearing capacity reduction, it is necessary to take drainage engineering measures at the same time. Among them, open ditch plus water collection well dewatering is an artificial drainage method. It has the characteristics of convenient construction, simple tools and low cost, and is the most commonly used in construction sites.
[0003] However, in the actual construction process, when discharging the water in the water collection ditch, because the water collection ditch is located below the surface of the water-rich deep foundation pit for water collection, it is inevitable that silt will continue to enter the ditch, which will block the drainage pipes inserted into the water collection ditch, and the silt mixed in the water collection ditch will cause the bottom surface of the ditch to rise continuously. The drainage pipes with a fixed height cannot accurately penetrate into the water collection part, that is, if the lower end of the pipe is too low, it will extend into the silt and cannot drain water. If the lower end of the pipe is too high from the bottom of the water collection ditch, it will not be able to drain the water at the bottom of the water collection ditch, which will cause great obstacles to the precipitation and drainage of the water-rich deep foundation pit. In order to solve this problem, an efficient water collection and drainage device for the water-rich deep foundation pit is designed. Utility Model Content
[0004] The utility model aims to solve the technical problems in the prior art and provide a high-efficiency drainage device for a water-rich deep foundation pit.
[0005] In order to solve the above technical problems, the technical solution of the utility model is as follows:
[0006] High-efficiency drainage device for water-rich deep foundation pit, including:
[0007] A water collection channel is arranged in a water-rich deep foundation pit to collect water, and the top of the water collection channel is open;
[0008] Piles, which are vertically arranged on both sides of the water collection channel; and a drainage mechanism, which is supported by the piles and arranged above the water collection channel to drain the accumulated water in the water collection channel;
[0009] The drainage mechanism comprises:
[0010] A transverse pipe, which is horizontally arranged above the water collection channel and supported by the piles on both sides of the water collection channel, and the transverse pipe is connected to a main drainage pipe;
[0011] a telescopic branch pipe, which is arranged on the horizontal pipe and communicated with the horizontal pipe, and the lower end of the telescopic branch pipe can be extended into the water collection channel by telescoping; and
[0012] A drainage head structure is arranged on the lower end of the telescopic branch pipe extending into the water collection channel.
[0013] Furthermore, the water collection channel is a concrete channel.
[0014] Furthermore, the main drainage pipe is connected to a drainage pump to drain water through the drainage pump.
[0015] Furthermore, the telescopic branch pipe includes a telescopic pipe member and a telescopic driving mechanism, and the telescopic driving mechanism drives the telescopic adjustment of the telescopic pipe member.
[0016] Furthermore, the telescopic pipe comprises an upper water pipe and a lower water pipe, the upper water pipe is inserted into the lower water pipe and moves coaxially in the lower water pipe, and the upper water pipe is connected to the lower water pipe;
[0017] A sliding sealing sleeve is arranged at the upper end of the lower water pipe, and the sliding sealing sleeve is sleeved on the upper water pipe and slides and seals with the upper water pipe.
[0018] Furthermore, the telescopic driving mechanism includes a telescopic cylinder, which is fixedly arranged on the upper water pipe, and the telescopic end of the telescopic cylinder is fixedly connected to the lower water pipe.
[0019] Furthermore, the drainage head structure includes a water collecting chamber, which is a flat disc-shaped cavity structure. The center position of the top of the water collecting chamber is connected to the lower end of the lower water pipe, and a plurality of water inlet holes are opened at the bottom.
[0020] Furthermore, a filter screen is arranged outside the water collecting chamber, and a support column is arranged between the inner surface of the filter screen and the outer surface of the water collecting chamber for connection and support.
[0021] The utility model has the following beneficial effects:
[0022] The utility model discloses a high-efficiency drainage device for a water-rich deep foundation pit, which designs the drainage pipe that is inserted into the water collection channel as a telescopic branch pipe with an extendable length, so as to accurately penetrate into the bottom of the water collection channel for drainage, and cooperates with the drainage head structure at the lower end of the water collection channel to block the entry of mud and sand, so that the drainage process is smooth and unobstructed, so as to carry out continuous and efficient drainage operations for the water-rich deep foundation pit. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0024] Figure 1 It is a structural schematic diagram of the high-efficiency water collection and drainage device for a water-rich deep foundation pit of the utility model;
[0025] Figure 2 It is a front view of the high-efficiency drainage device for a water-rich deep foundation pit of the utility model;
[0026] Figure 3 The utility model is a schematic diagram of the distribution of water inlet holes on the water collection cavity of the water-rich deep foundation pit high-efficiency water collection and drainage device.
[0027] The reference numerals in the figures indicate:
[0028] 1. Water collection channel; 2. Piles; 3. Horizontal pipes; 4. Main drainage pipes; 5. Upper water pipes; 6. Lower water pipes; 7. Sliding sealing sleeves; 8. Telescopic cylinders; 9. Water collection chambers; 10. Water inlet holes; 11. Filter screens; 12. Support columns. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0030] See also Figure 1-3 , high-efficiency drainage device for water-rich deep foundation pit, including:
[0031] A water collection channel 1 is arranged in a water-rich deep foundation pit to collect water. The top of the water collection channel 1 is open, and the water collection channel 1 is arranged at a height below the ground of the water-rich deep foundation pit to collect water through a height difference, so as to enable centralized drainage;
[0032] Piles 2 are vertically arranged on both sides of the water collection channel 1; and a drainage mechanism is supported by the piles 2 and arranged above the water collection channel 1 to drain the accumulated water in the water collection channel 1;
[0033] Drainage mechanisms include:
[0034] A transverse pipe 3 is horizontally arranged above the water collection channel 1 and supported by piles 2 on both sides of the water collection channel 1. The transverse pipe 3 is connected to a main drainage pipe 4;
[0035] A telescopic branch pipe, which is arranged on the horizontal pipe 3 and communicated with the horizontal pipe 3, and the lower end of the telescopic branch pipe can be extended into the water collection channel 1 by telescoping; and
[0036] The drainage head structure is arranged on the lower end of the telescopic branch pipe extending into the water collection channel 1.
[0037] Specifically, the height of the telescopic branch pipe extending into the water collection channel 1 is adjusted so that the drainage head structure can be inserted into the bottom of the water collection channel 1, and the water-rich deep foundation pit is discharged along the telescopic branch pipe, the horizontal pipe 3, and finally through the main drainage pipe 4.
[0038] Furthermore, the water collection channel 1 is a concrete channel, which can perform water collection operations with its stable structure.
[0039] Furthermore, the main drainage pipe 4 is connected to the drainage pump for drainage. The drainage pump is selected according to specific needs. For example, a mud pump is selected when there is a lot of mud and sand, and an ordinary drainage pump is selected for only drainage operations to achieve efficient and precise operations.
[0040] Furthermore, the telescopic branch pipe includes a telescopic pipe fitting and a telescopic driving mechanism, and the telescopic driving mechanism drives the telescopic pipe fitting to be telescopically adjusted.
[0041] Furthermore, the telescopic pipe comprises an upper water pipe 5 and a lower water pipe 6, the upper water pipe 5 is inserted into the lower water pipe 6 and moves coaxially in the lower water pipe 6, and the upper water pipe 5 is connected to the lower water pipe 6;
[0042] A sliding sealing sleeve 7 is provided at the upper end portion inside the lower water pipe 6. The sliding sealing sleeve 7 is sleeved on the upper water pipe 5 and slides and seals with the upper water pipe 5. The sliding sealing sleeve 7 maintains a seal between the upper water pipe 5 and the lower water pipe 6 while being capable of telescopic adjustment.
[0043] Furthermore, the telescopic driving mechanism includes a telescopic cylinder 8 which is fixedly disposed on the upper water pipe 5 , and a telescopic end of the telescopic cylinder 8 is fixedly connected to the lower water pipe 6 .
[0044] Specifically, driven by the telescopic cylinder 8, the lower water pipe 6 is driven to move axially relative to the upper water pipe 5 to adjust the height of the lower end of the lower water pipe 6 extending into the water collecting channel 1, so that the lower end of the lower water pipe 6 is above the bottom surface of the water collecting channel 1, that is, the height of the bottom surface with accumulated dust and sand, so that the lower end of the lower water pipe 6 can directly suck the accumulated water, avoiding the lower end of the lower water pipe 6 being directly submerged in the mud and sand and being unable to effectively drain the water.
[0045] Furthermore, the drainage head structure includes a water collecting chamber 9, which is a flat disc-shaped cavity structure. The center of the top of the water collecting chamber 9 is connected to the lower end of the lower water pipe 6, and a plurality of water inlet holes 10 are provided at the bottom. When the height of the lower end of the lower water pipe 6 is adjusted, the lower end of the water collecting chamber 9 reaches a position above the bottom surface of the water collecting channel 1 for drainage.
[0046] Furthermore, a filter screen 11 is arranged outside the water collecting chamber 9, and a support column 12 is arranged between the inner surface of the filter screen 11 and the outer surface of the water collecting chamber 9 for connection and support.
[0047] Specifically, the filter net 11 cooperates with the water collecting chamber 9 wrapped by it, and can mainly filter large particles of gravel and even mud and sand. Especially when used in the later stage of draining accumulated water, the filter net 11 can be directly pressed on the mud and sand mixed with accumulated water to allow water to penetrate into the filter net 11 and enter the water collecting chamber 9 through the water inlet hole 10 on the water collecting chamber 9, and finally discharged along the telescopic branch pipe, the horizontal pipe 3, and the main drainage pipe 4.
[0048] In summary, this device designs the drainage pipe that is inserted into the water collection channel into a telescopic branch pipe with an extendable length, so that it can accurately penetrate into the bottom of the water collection channel for drainage, and cooperate with the drainage head structure at the lower end of the water collection channel to block the entry of mud and sand, so that the drainage process is smooth and unobstructed, so as to carry out continuous and efficient water-rich deep foundation pit drainage operations.
[0049] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.
Claims
1. A high-efficiency drainage device for a water-rich deep foundation pit, characterized in that: include: A water collection channel (1) is arranged in a water-rich deep foundation pit to collect water, and the top of the water collection channel (1) is open; Piles (2) vertically arranged on both sides of the water collection channel (1); and a drainage mechanism supported by the piles (2) and arranged above the water collection channel (1) to drain the accumulated water in the water collection channel (1); The drainage mechanism comprises: a transverse pipe (3) which is horizontally arranged above the water collection channel (1) and supported by the piles (2) on both sides of the water collection channel (1); the transverse pipe (3) is connected to a main drainage pipe (4); a telescopic branch pipe, which is arranged on the transverse pipe (3) and communicated with the transverse pipe (3), and the lower end of the telescopic branch pipe can be extended into the water collection channel (1) by telescoping; and A drainage head structure is arranged on the lower end of the telescopic branch pipe extending into the water collection channel (1).
2. The high-efficiency drainage device for a water-rich deep foundation pit according to claim 1 is characterized in that: The water collection channel (1) is a concrete channel.
3. The high-efficiency drainage device for a water-rich deep foundation pit according to claim 1 is characterized in that: The main drainage pipe (4) is connected to a drainage pump so as to drain water through the drainage pump.
4. The high-efficiency drainage device for a water-rich deep foundation pit according to claim 1 is characterized in that: The telescopic branch pipe includes a telescopic pipe and a telescopic driving mechanism, and the telescopic pipe is driven by the telescopic driving mechanism to adjust the telescopic movement.
5. The high-efficiency drainage device for a water-rich deep foundation pit according to claim 4 is characterized in that: The telescopic pipe comprises an upper water pipe (5) and a lower water pipe (6); the upper water pipe (5) is inserted into the lower water pipe (6) and moves coaxially in the lower water pipe (6); the upper water pipe (5) is connected to the lower water pipe (6); A sliding sealing sleeve (7) is provided at the upper end portion of the lower water pipe (6), and the sliding sealing sleeve (7) is sleeved on the upper water pipe (5) and slides and seals with the upper water pipe (5).
6. The high-efficiency drainage device for a water-rich deep foundation pit according to claim 5 is characterized in that: The telescopic driving mechanism comprises a telescopic cylinder (8) which is fixedly arranged on the upper water pipe (5); the telescopic end of the telescopic cylinder (8) is fixedly connected to the lower water pipe (6).
7. The high-efficiency drainage device for a water-rich deep foundation pit according to claim 5 is characterized in that: The drainage head structure comprises a water collecting chamber (9), which is a flat disc-shaped cavity structure. The center position of the top of the water collecting chamber (9) is connected to the lower end of the lower water pipe (6), and a plurality of water inlet holes (10) are provided at the bottom.
8. The high-efficiency drainage device for a water-rich deep foundation pit according to claim 7 is characterized in that: A filter screen (11) is arranged outside the water collection chamber (9), and a support column (12) is arranged between the inner surface of the filter screen (11) and the outer surface of the water collection chamber (9) for connection and support.