CN215290296U - Permanent basement bottom plate anti-floating pressure relief device - Google Patents

Permanent basement bottom plate anti-floating pressure relief device Download PDF

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Publication number
CN215290296U
CN215290296U CN202120858917.0U CN202120858917U CN215290296U CN 215290296 U CN215290296 U CN 215290296U CN 202120858917 U CN202120858917 U CN 202120858917U CN 215290296 U CN215290296 U CN 215290296U
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China
Prior art keywords
pressure relief
pipe
unit
bottom plate
water
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CN202120858917.0U
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Chinese (zh)
Inventor
王建召
王君欢
李孝美
张世洁
朱伟阳
翁建军
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Ningbo Construction Group Co Ltd
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Ningbo Construction Group Co Ltd
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Abstract

The permanent basement bottom plate anti-floating pressure relief device comprises a pressure relief unit and a water filtering unit, wherein the pressure relief unit is located at the side end of a water collecting well and is arranged at a bottom plate structure layer, and the pressure relief unit is used for relieving pressure by discharging underground water into the water collecting well, and the water filtering unit is arranged at a bottom plate cushion layer, enters the soil body and is connected with the lower end of the pressure relief unit. The utility model discloses a mode that sets up pressure release unit and drainage unit reaches the purpose that detects groundwater pressure and in time drain the pressure release according to pressure numerical value, has that drainage pressure release is effectual, the convenient advantage of pressure measurement, and the device is under construction and later stage in the project of the earlier stage and is put into production all can use simultaneously, need not the shutoff, has reached the effect that once construction can permanent use, and economic benefits is high.

Description

Permanent basement bottom plate anti-floating pressure relief device
Technical Field
The utility model belongs to the technical field of basement bottom plate sluicing pressure release anti-floating construction, concretely relates to permanent basement bottom plate anti-floating pressure relief device.
Background
The current building engineering basement bottom plate anti floating way is mainly had the stock of digging the ground, set up the anti-floating pile, increase the building dead weight etc. and bottom plate pressure release way mainly has sets up interim pressure release hole during the structure construction, and traditional outlet is the vertical steel pipe that runs through basement bottom plate structural layer and bed course and get into in the soil body. And determining the number of the embedded water drainage holes and the distance between the water drainage holes according to calculation. When the drainage hole works, underground water slowly permeates or flows into the steel pipe from the soil body below the bottom plate of the basement and is discharged to the outside of the basement through the top end of the steel pipe upwards. After the basement bottom plate construction is accomplished, no longer discharge groundwater through the outlet, need shutoff steel pipe this moment to the construction of follow-up decorative layer etc. is convenient for.
As the file of application number CN2014204977675 discloses anti water installation that floats of basement bottom plate, basement bottom plate is including the bed course that is located the soil body top and the bottom plate structure layer that is located the bed course top, and anti water installation that floats of basement bottom plate includes the outlet pipe, and the outlet pipe runs through bottom plate structure layer and bed course in proper order, gets into the soil body, and a plurality of through-holes have been seted up to outlet pipe lower extreme fixed connection shrouding once, the lateral wall that is located the outlet pipe in the soil body.
Although the device can play a certain role in resisting and draining water, the device also has a plurality of problems, is influenced by factors such as uncertainty of surveying the value of the anti-floating water level, uneven construction quality, rapid rise of the continuous rainfall water level and the like, the underground water pressure is difficult to measure, the underground water pressure is often found after the bottom plate cracks or floats on the whole due to huge buoyancy, and the remediation difficulty is very large at the moment; and the device can only be used in the construction process of the previous period, cannot continue to play a role after the project of the later period is put into production, and has larger limitation.
SUMMERY OF THE UTILITY MODEL
To the problem that exists, the utility model aims at providing an anti pressure relief device that floats of permanent basement bottom plate through the mode that sets up pressure release unit and drainage unit, reaches the purpose that detects groundwater pressure and in time drainage pressure release according to pressure numerical value, has that drainage pressure release is effectual, the convenient advantage of pressure measurement, the device is all usable in the project construction of earlier stage and later stage in production simultaneously, need not the shutoff, reached the effect that once the construction can permanent use, economic benefits is high.
In order to achieve the above purpose, the technical solution of the present invention is as follows:
the permanent basement bottom plate anti-floating pressure relief device comprises a pressure relief unit and a water filtering unit, wherein the pressure relief unit is located at the side end of a water collecting well and is arranged at a bottom plate structure layer, and the pressure relief unit is used for relieving pressure by discharging underground water into the water collecting well, and the water filtering unit is arranged at a bottom plate cushion layer, enters the soil body and is connected with the lower end of the pressure relief unit.
As a further preference of the present invention, the water filtration unit comprises passing the bottom plate cushion layer and entering the pipe body in the soil body, set up in the water filtration holes on the pipe wall of the pipe body and through the mode of filling set up in the broken stones in the pipe body.
As a further preference of the present invention, the water filtering unit further comprises a first filter screen disposed outside the pipe body and used for filtering silt.
As the utility model discloses a further preferred, the pressure release unit including cup joint in cup joint pipe in the body, set up in the cup joint pipe is kept away from the tip of body and emits groundwater into the drain pipe of sump pit.
As a further preference of the utility model, the pressure relief unit is still including set up in the pressure measurement pressure relief subassembly of cup joint pipe and drain pipe junction. As a further preference of the present invention, the pressure relief pressure measuring unit includes a ball valve and a pressure gauge.
As a further preference of the present invention, the water filtration unit further comprises a sleeve pipe located at the port of the pipe body, a circular plate disposed at the port of the pipe body, and a filtration hole for filtering water disposed on the circular plate.
As a further preference of the present invention, the water filtering unit further comprises a second filter screen disposed on the lower surface of the circular plate and used for filtering sediment.
As a further preference of the present invention, the water filtering unit further comprises a fixed pipe connected to the lower end of the circular plate in a sleeved manner, and the second filter screen is located between the circular plate and the fixed pipe.
As a further preferred aspect of the present invention, the water filtering unit further comprises a limiting ring disposed on the inner wall of the end of the fixing tube and fixed by extrusion to the second filter screen.
As a further preference of the present invention, the pressure relief unit further comprises a water stop plate disposed on the pipe wall of the socket pipe located at the bottom plate structure layer.
To sum up, the utility model discloses following beneficial effect has:
the utility model discloses a mode that sets up pressure release unit and drainage unit reaches the purpose that detects groundwater pressure and in time drain the pressure release according to pressure numerical value, has that drainage pressure release is effectual, the convenient advantage of pressure measurement, and the device is under construction and later stage in the project of the earlier stage and is put into production all can use simultaneously, need not the shutoff, has reached the effect that once construction can permanent use, and economic benefits is high.
The utility model discloses a multiple filtration blocks groundwater and takes out soil, avoids the skeleton texture of the soil body to be destroyed, produces the piping phenomenon.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the water filtering unit of the present invention.
Fig. 3 is a schematic diagram of the position structure of the pressure relief unit of the present invention.
Fig. 4 is a schematic view of the connection structure of the circular plate and the fixed pipe of the present invention.
Description of the drawings: the water collecting well comprises a water collecting well a, a bottom plate structure layer b, a bottom plate cushion layer c, a soil body d, a pressure relief unit 1, a sleeve pipe 101, a drain pipe 102, a pressure measuring and pressure relief assembly 103, a water stop plate 104, a water filtering unit 2, a pipe body 201, a water filtering hole 202, broken stones 203, a first filter screen 204, a circular plate 205, a filtering hole 206, a second filter screen 207, a fixed pipe 208 and a limiting ring 209.
Detailed Description
Examples
A permanent basement bottom plate anti-floating pressure relief device is shown in attached figures 1, 2, 3 and 4 and comprises a pressure relief unit 1 and a water filtering unit 2, wherein the pressure relief unit is located at the side end of a water collecting well a and arranged at a bottom plate structure layer b to relieve pressure by discharging underground water into the water collecting well a, and the water filtering unit 2 is arranged at a bottom plate cushion layer c, enters an earth body d and is connected with the lower end of the pressure relief unit 1.
In this embodiment, the water filtering unit 2 includes a pipe 201 passing through the bottom cushion c and entering the soil d, water filtering holes 202 disposed on the pipe wall of the pipe 201, and broken stones 203 disposed in the pipe 201 by filling. The water filtering unit 2 further comprises a first filter screen 204 which is arranged outside the pipe body 201 and used for filtering sediment. In this embodiment, the pipe body 201 is a corrugated pipe, and has a length of 1m and a diameter of 250 mm; the diameter of each water filtering hole is 10mm, and the distance between every two adjacent water filtering holes is 50 mm; the particle size range of the macadam 203 is 20-40 mm.
In this embodiment, the water filtering unit 2 has a triple filtering structure, specifically, the first filter screen 204 at the outermost layer, the pipe body 201 with the water filtering holes 202 at the intermediate layer, and the crushed stone 203 at the innermost layer. The first filter screen 204 is disposed on the outer wall of the pipe body 201 and at the bottom opening of the pipe body 201, so as to prevent silt or other fixed objects at the soil body d from entering the pipe body 201 due to the pressure of underground water, and thus the skeleton structure of the soil body d is damaged; one function of the pipe body 201 is to support the shape of the first filter screen 204 to prevent deformation under pressure, and the other function is to further filter the water filtering holes 202 on the pipe wall, so as to reduce the silt content in the water body; the effect of rubble 203 is the interception follow body 201 lower extreme mouth of pipe passes through first filter screen 204 and gets into particulate matter such as silt in the body 201 prevents that the pipeline from being blockked up.
In this embodiment, the pressure relief unit 1 includes a sleeve pipe 101 sleeved in the pipe body 201, and a drain pipe 102 disposed at an end of the sleeve pipe 101 far from the pipe body 201 and draining groundwater into the sump a. The pressure relief unit 1 further comprises a pressure measuring and pressure relief assembly 103 arranged at the joint of the sleeve pipe 101 and the drain pipe 102. The pressure relief assembly 103 includes a ball valve and a pressure gauge. The pressure relief unit 1 further includes a water stop plate 104 disposed on the pipe wall of the socket pipe 101 at the bottom plate structure layer b. The width of the water stop plate 104 is 50mm, and the thickness is 3 mm.
In this embodiment, the inner diameter of the vertical pipe of the sleeve 101 is 200mm, and the inner diameter of the horizontal pipe is 100mm, so that the inner diameter of the drain pipe 102 connected to the horizontal pipe opening of the sleeve 101 is also 100mm, the reason that the inner diameter of the vertical pipe is larger than that of the horizontal pipe is that the impact force of water at the vertical pipe opening is larger, the water volume is larger, the inner diameter of 200mm is convenient for the entry of groundwater, and the inner diameter of the horizontal pipe is 100mm is convenient for the pressure measurement and the drainage. In addition, the sleeve pipe 101 is fixed by welding with the steel bars at the bottom plate structure b, and reinforcing steel bars are arranged around the vertical pipe for reinforcement. The water stop plate 104 has the function of cutting off a water permeation path, and when water permeates upwards along the gap between the tank body of the pipe joint 101 and the basement bottom plate, the water stop plate 104 is intercepted, and the water cannot permeate upwards, and timely water permeates along the gap between the water stop plate 104 and the basement bottom plate concrete.
In this embodiment, the water filtering unit 2 further includes a circular plate 205 disposed at a port of the socket 101 in the pipe body 201, and a filtering hole 206 disposed on the circular plate 205 and used for filtering water. The water filtering unit 2 further comprises a second filter screen 207 disposed on the lower surface of the circular plate 205 and used for filtering sediment. In this embodiment, the circular plate 205 has a thickness of 3mm, and the filter holes 206 have a diameter of 10 mm.
In this embodiment, the first effect of plectane 205 is used for the pressure-bearing, avoids groundwater pressure too big, rubble 203 gets into cause the jam in the bell and spigot 101, the second effect with second filter screen 207 combines and is used for further filtering silt, blocks that groundwater takes out soil, makes the skeleton texture of soil body d is destroyed, produces the piping phenomenon.
In this embodiment, the water filtering unit 2 further includes a fixed pipe 208 connected to the lower end of the circular plate 205 in a sleeved manner, and the second filter screen 207 is located between the circular plate 205 and the fixed pipe 208. The water filtering unit 2 further comprises a limiting ring 209 which is arranged on the inner pipe wall of the end of the fixed pipe 208 and fixes the second filter screen 207 in an extruding manner.
In this embodiment, considering that the second filter screen 207 is directly sleeved on the outer side of the circular plate 205 to form a large gap, silt is easily carried into the pipe body of the sleeving pipe 101 by the water body permeating into the gap, and the filtering effect is not good, the circular plate 205 is sleeved with the fixing pipe 208 with a length of 10mm, and the inner wall of the port of the fixing pipe is provided with the raised limiting ring 209 with a width of 1 mm. The fixing pipe 208 serves to reinforce the connection between the circular plate 205 and the socket 101, thereby reducing the gap between the circular plate 205 and the socket 101, and serves to sufficiently attach the second filter 207 to the lower surface of the circular plate 205, fix both ends of the second filter 207 to the side ends of the circular plate 205, and reduce the gap between the circular plate 205 and the second filter 207. The first function of the limiting ring 209 is to further prevent a gap from being generated between the bent portion of the second filter screen 207 and the circular plate 205, and the second function is to prevent the fixing pipe 208 from moving up along the sleeve pipe 101 under the pressure of groundwater, and thus the function of fixing the second filter screen 207 is lost.
The working principle of the device is as follows: (1) excavating the earth of the basement to the bottom of a bottom plate cushion layer c, and drilling a pipe well with the diameter of 250mm and the depth of 1 meter at a position 1-1.5 meters away from the side wall of the water collecting well a; constructing concrete of a basement bottom slab cushion c, then cutting off pipe bodies 201 above the level of the cushion to enable the height of the pipe bodies 201 to be flush with the bottom slab cushion c, and filling broken stones 203 with the particle size of 20-40mm in the pipe bodies 201 to the bottom of the bottom slab cushion c; embedding the pressure relief unit 2 for temporary fixation, binding and installing a lower-layer steel bar of the bottom plate, welding and fixing the sleeve pipe 101 and the steel bar of the bottom plate, and placing reinforcing steel bars around the vertical pipe; after the pouring of the bottom plate concrete is finished, installing a ball valve, a pressure gauge and a drain pipe 102; when the water level rises in the water-rich period, the pressure of underground water is detected through a pressure gauge, the pressure is relieved through a valve, and water in the water collecting well a is pumped and discharged to a municipal water network through a self-priming pump.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (10)

1. The permanent basement bottom plate anti-floating pressure relief device is characterized by comprising a pressure relief unit (1) and a water filtering unit (2), wherein the pressure relief unit is located at the side end of a water collecting well (a) and arranged at a bottom plate structure layer (b) and is used for relieving pressure by discharging underground water into the water collecting well (a), and the water filtering unit (2) is arranged at a bottom plate cushion layer (c), enters a soil body (d) and is connected with the lower end of the pressure relief unit (1).
2. The permanent basement floor anti-floating pressure relief device according to claim 1, wherein the water filtering unit (2) comprises a tube (201) penetrating through the floor cushion (c) and entering the soil body (d), a water filtering hole (202) arranged on the wall of the tube (201), and gravels (203) arranged in the tube (201) by filling.
3. The permanent basement bottom plate anti-floating pressure relief device according to claim 2, wherein the water filtering unit (2) further comprises a first filter screen (204) arranged outside the pipe body (201) and used for filtering sediment.
4. The permanent basement floor anti-floating pressure relief device according to claim 3, wherein the pressure relief unit (1) comprises a sleeve pipe (101) sleeved in the pipe body (201), and a drain pipe (102) arranged at the end of the sleeve pipe (101) far away from the pipe body (201) and draining groundwater into a water collecting well (a).
5. The permanent basement bottom plate anti-floating pressure relief device according to claim 4, wherein the pressure relief unit (1) further comprises a pressure measuring pressure relief assembly (103) arranged at the joint of the sleeve (101) and the drain pipe (102).
6. The permanent basement floor anti-floating pressure relief device according to claim 4, wherein the water filtering unit (2) further comprises a circular plate (205) arranged at the port of the socket (101) located in the pipe body (201), and a filtering hole (206) arranged on the circular plate (205) and used for filtering water.
7. The permanent basement bottom plate anti-floating pressure relief device according to claim 6, wherein the water filtering unit (2) further comprises a second filter screen (207) arranged on the lower surface of the circular plate (205) and used for filtering sediment.
8. The permanent basement bottom plate anti-floating pressure relief device according to claim 7, wherein the water filtering unit (2) further comprises a fixed pipe (208) connected with the lower end of the circular plate (205) in a sleeved mode, and the second filter screen (207) is located between the circular plate (205) and the fixed pipe (208).
9. The permanent basement bottom plate anti-floating pressure relief device according to claim 8, wherein the water filtering unit (2) further comprises a limiting ring (209) which is arranged on the inner pipe wall at the end of the fixed pipe (208) and fixes the second filter screen (207) in a pressing mode.
10. The permanent basement floor anti-floating pressure relief device according to claim 4, wherein the pressure relief unit (1) further comprises a water stop plate (104) disposed on the pipe wall of the pipe joint (101) at the floor structure layer (b).
CN202120858917.0U 2021-04-25 2021-04-25 Permanent basement bottom plate anti-floating pressure relief device Active CN215290296U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120858917.0U CN215290296U (en) 2021-04-25 2021-04-25 Permanent basement bottom plate anti-floating pressure relief device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120858917.0U CN215290296U (en) 2021-04-25 2021-04-25 Permanent basement bottom plate anti-floating pressure relief device

Publications (1)

Publication Number Publication Date
CN215290296U true CN215290296U (en) 2021-12-24

Family

ID=79537923

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120858917.0U Active CN215290296U (en) 2021-04-25 2021-04-25 Permanent basement bottom plate anti-floating pressure relief device

Country Status (1)

Country Link
CN (1) CN215290296U (en)

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