Anti-floating device for basement structure after backfilling of fertilizer groove area

Abstract

The utility model discloses an anti-floating device for a basement structure after backfilling of a fertilizer groove area. The anti-floating device comprises a drainage pipeline, a first filter screen, a blanking cap, a water pump and a hose, the drainage pipeline is of a hollow pipeline structure, the end of the drainage pipeline is sealed through the plug cover, a plurality of through holes are evenly distributed in the drainage pipeline and the plug cover, and the first filter screen wraps the outer wall of the drainage pipeline and covers all the through holes. The drainage pipeline is arranged in the fertilizer groove area, so that underground water in the fertilizer groove area enters the drainage pipeline through the first filter screen and the through hole; one end of the hose is inserted and communicated into the drainage pipeline, and the other end of the hose extends out of the drainage pipeline and is connected with a water pumping end of a water pump arranged on the ground. The utility model relates to the technical field of civil engineering, and provides a novel basement anti-floating structure.

Description

Technical Field

[0001] This utility model relates to the field of civil engineering technology, and in particular to an anti-buoyancy device for basement structures after backfilling in the fertilizer trench area. Background Technology

[0002] After the basement structure is completed, the trench area needs to be backfilled. Since the building is located in the basement and the upper structure has not yet been completed, the basement roof has not been covered with soil, and the load-bearing capacity of the basement structure does not meet the anti-buoyancy requirements. After the trench is backfilled, the water level in the basement cannot be drained in time, and the water level will rise, causing the basement structure to be affected by the buoyancy of the water, resulting in structural instability or even damage. In order to ensure the stability of the building structure and normal use, the anti-buoyancy problem of the building basement is receiving more and more attention.

[0003] Chinese utility model patent CN218643428U discloses an anti-buoyancy structure for basements. When using connecting hoops to fix the reinforcing bars of the unit reinforcement, the movable section of the connecting hoop is opened, moving it away from the unit reinforcement. The top of the unit reinforcement is placed in the placement area of ​​the connecting hoop, with the connecting protrusion at the top of the unit reinforcement abutting against the connecting groove. The movable section of the connecting hoop is then flipped over, covering the unit reinforcement, and finally, a locking device is used to lock the connecting hoop.

[0004] Chinese utility model patent CN219033328U discloses an anti-buoyancy structure for a basement, which includes an anchor rod body, prestressed tendons, a pad plate, and an anchor. The lower end of the prestressed tendon is anchored to the lower end of the anchor rod body, and the upper end of the prestressed tendon protrudes from the anchor rod body. The pad plate abuts against the upper end surface of the anchor rod body, and the upper end of the prestressed tendon passes through the pad plate and is fixedly connected to the anchor. The anchor is abutted against the upper surface of the pad plate. Several connecting rods are provided on the pad plate, extending along the radial direction and upward of the pad plate. The outer ends of the connecting rods are all fixedly connected to a ring. The top ends of the pad plate, connecting rods, ring, anchor, and prestressed tendons are all embedded in the basement floor slab.

[0005] While the aforementioned existing anti-buoyancy structures can improve the buoyancy resistance of basements, they all achieve this by improving anchors to enhance the anchoring effect on the basement. The basement structure is still subject to significant buoyancy. Therefore, there is a need for an anti-buoyancy device for basement structures after backfilling in the trench area, providing a novel anti-buoyancy structure for basements. Summary of the Invention

[0006] The purpose of this utility model is to provide an anti-buoyancy device for basement structures after backfilling in the fertilizer trench area, thereby providing a new anti-buoyancy structure for basements.

[0007] This utility model is implemented as follows:

[0008] An anti-buoyancy device for basement structures after backfilling in a fertilizer trench area includes a drainage pipe, a first filter screen, a plug, a water pump, and a hose. The drainage pipe is a hollow pipe structure, with its ends sealed by the plug. Several through holes are evenly distributed on both the drainage pipe and the plug. The first filter screen wraps around the outer wall of the drainage pipe and covers all the through holes. The drainage pipe is installed within the fertilizer trench area, allowing groundwater from the area to enter the drainage pipe through the first filter screen and the through holes. One end of the hose is inserted into and connected to the drainage pipe, and the other end extends to the outside of the drainage pipe and connects to the pumping end of a water pump placed on the ground.

[0009] The drainage pipe includes a tee, horizontal pipes, and vertical pipes; a pair of horizontal pipes are connected to both ends of the tee, and the vertical pipe is connected to the top of the tee, so that the pair of horizontal pipes are perpendicularly connected to the vertical pipe through the tee to form an inverted T-shaped drainage pipe; one end of the flexible hose is inserted into the vertical pipe, and the plug is installed on the end of the horizontal pipe away from the vertical pipe; the pair of horizontal pipes are located in the backfill soil of the fertilizer trench area, and the upper end of the vertical pipe is higher than the backfill completion surface of the backfill area.

[0010] One end of the hose is connected to a sleeve, the upper end of which is inserted into the hose, and the lower end of which is inserted into a tee between a pair of horizontal pipes. The lower part of the sleeve forms a structure that is narrow at the top and wide at the bottom.

[0011] The sleeve has a counterweight in the middle, and several counterweights are arranged at intervals along the circumference of the sleeve.

[0012] The lower end of the sleeve is provided with several support rods spaced apart along the circumference of the sleeve. The lower ends of the support rods abut against the bottom inner wall of the tee, so that there is a flow gap between the lower end of the sleeve and the bottom inner wall of the tee.

[0013] The lower end cover of the sleeve is equipped with a second filter screen.

[0014] The lower parts of the horizontal and vertical pipes are covered with yellow sand within the fertilizer trench area, thus isolating the lower parts of the horizontal and vertical pipes from the backfill soil within the fertilizer trench area.

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] 1. This utility model, equipped with a drainage pipe, a first filter screen, a water pump, and a flexible hose, allows groundwater to seep into the yellow sand layer and, after being filtered through the first filter screen and through-holes, enter the horizontal and vertical pipes. By starting the water pump, the flexible hose can be used to extract the groundwater from the horizontal pipe, thereby lowering the groundwater level outside the basement. This reduces the impact of water buoyancy on the basement structure, minimizes the risk of structural undulation, and achieves an anti-buoyancy effect. After the basement roof slab is covered with soil and the upper building is constructed, the flexible hose is extracted from the vertical pipe, and the horizontal and vertical pipes are filled with fluidized solidified soil. The operation is simple, the construction is convenient, and it has broad application prospects.

[0017] 2. This utility model, by incorporating a sleeve, counterweight, support rod, and second filter screen, creates a flow gap through the contact between the support rod and the bottom surface of the tee. Groundwater passes through this gap, is filtered by the second filter screen, and then enters the flexible hose through the sleeve, which is narrower at the top and wider at the bottom, ensuring efficient pumping of groundwater. Simultaneously, the counterweight ensures that the lower end of the flexible hose is stably positioned at the bottom of the vertical pipe, and the sleeve is inserted between the horizontal pipes, further guaranteeing effective pumping of groundwater. Attached Figure Description

[0018] Figure 1 This is the main view of the anti-buoyancy device for basement structures after backfilling in the fertilizer trench area according to this utility model;

[0019] Figure 2 This is a partial cross-sectional view of the anti-buoyancy device for basement structures after backfilling in the fertilizer trench area according to this utility model;

[0020] Figure 3 yes Figure 2 A magnified view of a portion of the image.

[0021] In the diagram, the components are: horizontal pipe 1, vertical pipe 2, through hole 3, tee 4, first filter screen 5, plug 6, water pump 7, hose 8, sleeve 9, counterweight 10, support rod 11, and second filter screen 12. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] Please see the appendix Figure 1 and attached Figure 2 An anti-buoyancy device for basement structures after backfilling in a fertilizer trench area includes a drainage pipe, a first filter screen 5, a plug 6, a water pump 7, and a flexible hose 8. The drainage pipe is a hollow pipe structure, with its ends sealed by the plug 6. Several through holes 3 are evenly distributed on the drainage pipe and the plug 6. The first filter screen 5 wraps around the outer wall of the drainage pipe and covers all the through holes 3. The drainage pipe is installed in the fertilizer trench area, allowing groundwater in the fertilizer trench area to enter the drainage pipe through the first filter screen 5 and the through holes 3. One end of the flexible hose 8 is inserted into and connected to the drainage pipe, and the other end of the flexible hose 8 extends to the outside of the drainage pipe and is connected to the pumping end of the water pump 7 placed on the ground.

[0024] After placing the drainage pipe in the fertilized area, the fertilized area is backfilled using conventional methods. Groundwater can seep into the drainage pipe through the through hole 3, and the groundwater in the drainage pipe is pumped out through the water pump 7 and the hose 8, thereby reducing the water level in the basement after the fertilized area is backfilled, reducing the risk of structural undulation in the basement, and achieving an anti-buoyancy effect.

[0025] The drainage pipe can be made of PVC pipe. The plug 6 is used to prevent groundwater and backfill soil from entering the pipe from the end of the pipe, ensuring that all groundwater enters the drainage pipe through the through hole 3. The backfill soil and its mixture with groundwater are filtered through the through hole 3 and the first filter screen 5, effectively preventing particulate matter from entering the drainage pipe and preventing the water pump 7 from being blocked or damaged.

[0026] Preferably, the first filter screen 5 can be made of materials such as geotextile, which has good water permeability and good filtration performance for particulate matter such as mud and sand.

[0027] Please see the appendix Figure 1 and attached Figure 2 The drainage pipe includes a tee 4, a horizontal pipe 1, and a vertical pipe 2; a pair of horizontal pipes 1 are connected to both ends of the tee 4, and the vertical pipe 2 is connected to the top of the tee 4, so that the pair of horizontal pipes 1 are vertically connected to the vertical pipe 2 through the tee 4 to form an inverted T-shaped drainage pipe; one end of the flexible hose 8 is inserted into the vertical pipe 2, and the plug 6 is installed on the end of the horizontal pipe 1 away from the vertical pipe 2; the pair of horizontal pipes 1 are located in the backfill soil of the fertilizer trench area, and the upper end of the vertical pipe 2 is higher than the backfill completion surface of the backfill area.

[0028] Preferably, the inner diameter of the horizontal pipe 1 is 300-800mm, preferably 500mm, and the total length of the two horizontal pipes 1 is 6000mm. The inner diameter of the vertical pipe 2 is 200-500mm, preferably 300mm. After the drainage pipe is laid, the top of the vertical pipe 2 is 500mm higher than the backfill surface of the backfill area to prevent the backfill soil from falling into the drainage pipe from the top of the vertical pipe 2.

[0029] By arranging horizontal pipe 1 and vertical pipe 2, groundwater at different heights can quickly enter the drainage pipes, ensuring drainage efficiency, thereby effectively controlling the groundwater level, reducing the buoyancy generated by the groundwater, ensuring the structural safety of the basement, reducing the risk of structural undulation of the basement, and achieving the effect of anti-buoyancy.

[0030] Preferably, the end of the horizontal tube 1 furthest from the vertical tube 2 can be screwed to the plug 6 by means of threads, which makes disassembly and assembly convenient, and the threaded engagement area has good installation stability and waterproofness.

[0031] Please see the appendix Figure 2 One end of the hose 8 is connected to a sleeve 9. The upper end of the sleeve 9 is inserted into the hose 8, and the lower end of the sleeve 9 is inserted into the tee 4 between a pair of horizontal pipes 1. The lower part of the sleeve 9 forms a structure that is narrow at the top and wide at the bottom.

[0032] By designing the sleeve 9, which is narrower at the top and wider at the bottom, the bottom water inlet cylinder can be enlarged, accelerating the water inlet speed and facilitating the rapid discharge of groundwater. This prevents groundwater accumulation from generating buoyancy on the basement structure, thereby improving the anti-buoyancy effect.

[0033] Please see the appendix Figure 2 The sleeve 9 is provided with a counterweight 10 in the middle, and several counterweights 10 are arranged at intervals along the circumference of the sleeve 9.

[0034] Preferably, the counterweight 10 can be a metal block and pre-embedded in the cylinder wall of the sleeve 9, which can increase the counterweight and ensure that the hose 8 hangs down naturally, so that the lower end of the sleeve 9 can extend downward to the bottom of the tee 4, avoiding the buoyancy of groundwater causing the sleeve 9 to float and affect the drainage effect, and ensuring the effective pumping of groundwater.

[0035] Please see the appendix Figure 3 The lower end of the sleeve 9 is provided with a plurality of support rods 11 spaced apart along the circumference of the sleeve 9. The lower end of the support rods 11 abuts against the bottom inner wall of the tee 4, so that there is a flow gap between the lower end of the sleeve 9 and the bottom inner wall of the tee 4.

[0036] The length of the support rod 11, i.e. the height of the flow gap, can be adaptively adjusted according to the drainage efficiency requirements to avoid the lower end of the sleeve 9 contacting the bottom inner wall of the tee 4 and affecting the drainage speed. Preferably, 2-4 support rods 11 can be symmetrically arranged and detachably installed at the lower end of the sleeve 9 with screws for easy disassembly and replacement.

[0037] Please see the appendix Figure 3 The lower end cover of the sleeve 9 is equipped with a second filter screen 12.

[0038] Preferably, the second filter screen 12 can be a metal filter screen, which is detachably installed on the lower end of the sleeve 9 with screws for easy replacement. The second filter screen 12 is used to filter the groundwater entering the sleeve 9, remove silt, and effectively protect the normal operation of the water pump 7.

[0039] The lower parts of the horizontal pipe 1 and the vertical pipe 2 are covered with yellow sand (not shown in the figure) in the fertilizer trench area, so that the lower parts of the horizontal pipe 1 and the vertical pipe 2 are isolated from the backfill soil in the fertilizer trench area by the yellow sand.

[0040] The small particles of yellow sand can isolate the backfill soil in the fertilizer tank area, preventing the soil from directly contacting the first filter screen 5 and clogging the mesh of the first filter screen 5. Groundwater can enter a pair of horizontal pipes 1 and vertical pipes 2 through the gaps between the sand particles, the mesh of the first filter screen 5 and the through holes 3.

[0041] Preferably, the mesh diameter of the first filter screen 5 can be selected according to the particle size adaptability of the yellow sand, so that the yellow sand will not enter the drainage pipe and the groundwater can smoothly enter the drainage pipe.

[0042] Please see the appendix Figure 1 To be continued Figure 3 The installation method and working principle of this utility model are as follows:

[0043] A pair of horizontal pipes 1 and a vertical pipe 2 are connected by a tee 4 to form an inverted T-shaped drainage pipe. The end of the pair of horizontal pipes 1 away from the vertical pipe 2 is sealed by a plug 6, and through holes 3 are evenly opened on the plug 6, the pair of horizontal pipes 1 and the vertical pipe 2. A first filter screen 5 is wrapped around the plug 6, the pair of horizontal pipes 1 and the vertical pipe 2, and the mesh size of the first filter screen 5 is suitable for the particle size of yellow sand.

[0044] The upper end of the sleeve 9 is inserted into one end of the hose 8, and the other end of the hose 8 is connected to the pump end of the water pump 7 on the ground. One end of the hose 8 is inserted into the vertical pipe 2, and the sleeve 9 uses the counterweight 10 to ensure that one end of the hose 8 can be inserted to the bottom of the vertical pipe 2. The support rod 11 at the bottom of the sleeve 9 can rest against the bottom surface of the tee 4, leaving a flow gap between the bottom of the sleeve 9 and the bottom surface of the tee 4.

[0045] The drainage pipe is placed within the fertilizer trench area, with the upper end of the vertical pipe 2 higher than the completed backfill surface of the fertilizer trench area. A pair of horizontal pipes 1 and the lower vertical pipe 2 are covered with yellow sand. Preferably, the yellow sand covers 300mm above the horizontal pipes 1 and 500mm outside the end cap 6. The fertilizer trench area is then backfilled layer by layer with backfill soil and compacted. During backfilling, the area containing the drainage pipe is backfilled first, followed by the remaining area. The backfilling of the fertilizer trench area uses conventional techniques, which will not be described in detail here.

[0046] Groundwater can permeate through yellow sand and enter the horizontal pipe 1 and vertical pipe 2 through the through hole 3. The first filter screen 5 can prevent mud and sand from entering the horizontal pipe 1 and vertical pipe 2 or clogging the through hole 3. When the water pump 7 is started, the groundwater can be discharged through the flow gap through the sleeve 9 and the hose 8. The second filter screen 12 can prevent mud and sand from clogging the water pump 7 when the groundwater is pumped out.

[0047] After the soil covering of the basement roof slab and the construction of the superstructure are completed, the hose 8 and sleeve 9 are pulled out from the vertical pipe 2, and the horizontal pipe 1 and the vertical pipe 2 are filled with fluidized solidified soil.

[0048] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. An anti-buoyancy device for basement structures after backfilling in a sump area, characterized in that: It includes a drainage pipe, a first filter screen (5), a plug (6), a water pump (7), and a hose (8); the drainage pipe is a hollow pipe structure, the end of the drainage pipe is sealed by the plug (6), and several through holes (3) are evenly distributed on the drainage pipe and the plug (6). The first filter screen (5) is wrapped around the outer wall of the drainage pipe and covers all the through holes (3); the drainage pipe is set in the fertilizer tank area so that the groundwater in the fertilizer tank area enters the drainage pipe through the first filter screen (5) and the through holes (3); one end of the hose (8) is inserted into the drainage pipe and connected to it, and the other end of the hose (8) extends to the outside of the drainage pipe and is connected to the pumping end of the water pump (7) placed on the ground.

2. The anti-buoyancy device for basement structures after backfilling in the fertilizer trench area according to claim 1, characterized in that: The drainage pipe includes a tee (4), a horizontal pipe (1), and a vertical pipe (2); a pair of horizontal pipes (1) are connected to both ends of the tee (4), and the vertical pipe (2) is connected to the top of the tee (4), so that the pair of horizontal pipes (1) are vertically connected to the vertical pipe (2) through the tee (4) to form an inverted T-shaped drainage pipe; one end of the hose (8) is inserted into the vertical pipe (2), and the plug (6) is installed on the end of the horizontal pipe (1) away from the vertical pipe (2); the pair of horizontal pipes (1) are located in the backfill soil of the fertilizer trench area, and the upper end of the vertical pipe (2) is higher than the backfill completion surface of the backfill area.

3. The anti-buoyancy device for basement structures after backfilling in the fertilizer trench area according to claim 2, characterized in that: One end of the hose (8) is connected to a sleeve (9). The upper end of the sleeve (9) is inserted into the hose (8), and the lower end of the sleeve (9) is inserted into the tee (4) between a pair of horizontal pipes (1). The lower part of the sleeve (9) forms a structure that is narrow at the top and wide at the bottom.

4. The anti-buoyancy device for basement structures after backfilling in the fertilizer trench area according to claim 3, characterized in that: The sleeve (9) is provided with a counterweight (10) in the middle, and several counterweights (10) are arranged at intervals along the circumference of the sleeve (9).

5. The anti-buoyancy device for basement structures after backfilling in the fertilizer trench area according to claim 3 or 4, characterized in that: The lower end of the sleeve (9) is provided with several support rods (11) spaced apart along the circumference of the sleeve (9). The lower end of the support rods (11) abuts against the bottom inner wall of the tee (4), so that there is a flow gap between the lower end of the sleeve (9) and the bottom inner wall of the tee (4).

6. The anti-buoyancy device for basement structures after backfilling in the fertilizer trench area according to claim 5, characterized in that: The lower end cover of the sleeve (9) is equipped with a second filter screen (12).

7. The anti-buoyancy device for basement structures after backfilling in the fertilizer trench area according to claim 2, characterized in that: The lower parts of the horizontal pipe (1) and vertical pipe (2) are covered with yellow sand in the fertilizer trench area, so that the lower parts of the horizontal pipe (1) and vertical pipe (2) are isolated from the backfill soil in the fertilizer trench area by the yellow sand.

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