CN103061351B - Prevent the device that basement bottom board swells, seeps water - Google Patents
Prevent the device that basement bottom board swells, seeps water Download PDFInfo
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- CN103061351B CN103061351B CN201210563886.1A CN201210563886A CN103061351B CN 103061351 B CN103061351 B CN 103061351B CN 201210563886 A CN201210563886 A CN 201210563886A CN 103061351 B CN103061351 B CN 103061351B
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Abstract
The invention provides a kind of device preventing basement bottom board from swelling, seeping water, it comprises from oozing sump and dewatering installation.Generally arrange along basement grade beam from oozing sump, surrounding and bottom geotextiles are wrapped up, with sandstone loaded filter landfill between sump and the container having filter opening, the outer wall having the container of filter opening is wrapped over filter screen, be provided with aqueduct in container, aqueduct is connected with the drainage system of basement indoor.The present invention can reach the object of radical cure to the repairing that the basement bottom board destroyed has occurred under groundwater pressure effect, and renewal expense is low.New construction uses the present invention can control in certain limit by groundwater table according to the anti-floating bearing capacity of basement bottom board, reduces the construction costs of basement, is easy to allow people accept.
Description
Technical field
The present invention relates to a kind of device preventing basement bottom board from swelling, seeping water, belong to building field, can be used for maintenance or prevent basement floor constructions destruction, infiltration phenomenon.
Background technology
The influence factor of groundwater table height change is a lot, accurately provide design of basement hydrostatic water table more difficult.Current have a lot of building basement after building up because the hydrological geological conditions of place periphery changes, or run into the factors such as heavy showers, cause basement bottom board to be subject to exceeding the underground water buoyancy effect of former design load and crack and water leakage, even bulge fracture occurs.Solution has:
1. improve hydrostatic water table during design, although this method can avoid basement generation bulge fracture or crack and water leakage from design, improving hydrostatic water table can obviously increase Civil Cost and extend the duration.
2. the place of pair crack and water leakage is injected and is met water-blown polyurethane water-stop, reach the object of water sealing and seepage resistane, but this method can only solve existing leakage problems, can not for the treatment of basement bulge fracture.And too high water pressure or probably cause the concrete cracking of basement bottom board in other places, define and repair today, tomorrow leaks, and leaks every year, year annual overhaul phenomenon.
3. patent " a kind of water guider preventing basement bottom board from swelling, seeping water " (patent No.: CN202247923U) provides a kind of water guider preventing basement bottom board from swelling, seeping water.It is such practical function: bottom the ater-casting of basement ground surrounding, be provided with concrete cushion, the ground of basement is provided with the water filter plate of concavo-convex wedge mouth connection, water filter plate is provided with asphaltic felt, asphaltic felt is provided with screed, by the ater-casting of basement as water guide band, the water of basement is drained into the backward outer pump drainage of collecting well that ater-casting connects.But there is significant limitation in the method: first only can be used for grassroot project, cannot for the treatment of the seepage of built basement and bulge fracture; Secondly utilize basement post-pouring zone as water guide band due to it, can only be used for ater-casting not yet close before the draining of construction stage, the effect of reduction, controlling groundwater level can not be played in ater-casting after closing; Finally because ater-casting spacing is comparatively large, be generally about 35 meters, be subject to a definite limitation using ater-casting as the dewatering effect of water guide band.
4. anti-float anchor rod is a kind of conventional basement Anti-floating design method, and it both can be used for the anti-floating of grassroot project, also can be used for processing building up basement bottom board generation bulge fracture.Anti-float anchor rod has duration short, convenient, the advantage such as cost is relatively low of constructing compared with the methods such as uplift pile.But it cannot be applicable to the geological conditions of layer of sand, layer of gravel, and water proof structure is complicated, the improper easy generation seepage of construction processing.When anti-float anchor rod be applied to built basement time, originally complete basement bottom board and waterproofing course can have been exposed a large amount of holes, destroy the integrality of concrete self and waterproofing course, thus produce a large amount of possible seepage point, waterproofing work is very difficult, there is more serious infiltration hidden danger.
Due to the deficiency that existing process basement bottom board protuberance and crack and water leakage technology exist, a difficult problem for basement bottom board crack and water leakage fundamentally to be solved, in the urgent need to taking effectively reliable and economically viable method.
Summary of the invention
The object of this invention is to provide one and can overcome prior art weak point, when effectively preventing groundwater table from exceeding former design load, the device of basement bottom board generation bulge fracture or crack and water leakage.
The present invention is achieved in that
Under basement bottom board, design and installation one is from oozing sump and dewatering installation, underground water passes through sump, filtering rear enrichment and being stored in has in the container of filter opening, when its pressure exceedes preset value, be arranged on hydraulic-pressure regulating valve on aqueduct or namely pressure relief device is opened, underground water enters the drainage system of basement through aqueduct, reach the effect of dredging and falling basement bottom board water pressure, groundwater pressure is controlled below design load, effectively prevent basement bottom board from causing bulge fracture or crack and water leakage because hydraulic pressure is excessive.It comprises sump and dewatering installation, it is characterized in that: in sump, be provided with the container having filter opening, with sandstone loaded filter landfill between sump and the container having filter opening, surrounding and the bottom geotextiles of sump are wrapped up, the outer wall having the container of filter opening is wrapped over filter screen, be provided with aqueduct in sump, aqueduct is connected with the drainage system of basement.
Bend pipe is provided with above described aqueduct.
Pressure regulator is provided with above described aqueduct.
Described sump: long 500 ~ 1000mm, wide 500 ~ 1000mm, high 500 ~ 1000mm.
Described loaded filter is made up of graded sand and stone.
The described container having filter opening adopts stainless steel or highstrenghtpiston's material: external diameter 100 ~ 300mm, wall thickness 5 ~ 10mm, the aperture 5 ~ 20mm of long 500 ~ 1000mm filter opening, pitch of holes 10 ~ 50mm, regular distribution or irregular distribution.
Described aqueduct: be highstrenghtpiston's material or stainless steel, the connected mode of aqueduct and basement drainage system is for directly to discharge after groundwater pressure exceedes design limiting value by hydraulic-pressure regulating valve or pressure relief device.
Compared with prior art, its substantial feature and significant progress are in the present invention:
1, widely applicable, both can be used for, to the anti-floating consolidation process of built basement bottom board, also can be used for grassroot project, and do not had the use of Geological condition to limit.
2, in design concept, by the simple opposing of prior art or the method for designing of dredging into anti-lean phase is changed to underground water and combines, groundwater table is controlled at rational limit value, given full play to the anti-pressure ability that base plate is own, obtain optimum economic benefit.
3, do not need all to install filtering material under basement bottom board, only need to arrange several sump and dewatering installation just can produce a desired effect at basement, saving material, convenient and quick construction, the duration is short.
4, from the position of the sump that overflows by the restriction of position, ater-casting, can flexible arrangement as required, the efficiency reducing base plate groundwater pressure is high.
5, basement anti-with anti-float anchor rod swells, compared with the method that seeps water, changes opposing into dredging combine by resisting water pressure completely, and avoid a large amount of perforate on base plate and waterproofing course and the hidden leakage defect that causes, reliability is higher.And not by the restriction of geological conditions, construct more convenient, the duration is short, cost is starkly lower than anti-float anchor rod.
6, for there is bulge fracture because being subject to water pressure, the base plate of crack and water leakage carries out reinforcement repairing, comprehensive cost is low, and deal with problems from basic source, avoid today bad, tomorrow repaiies, year annual overhaul, every year bad phenomenon.
7, drainage system is provided with hydraulic-pressure regulating valve or pressure relief device, by the effect of control valve, automation can be realized and dredge and fall base plate hydraulic pressure, discharge underground water, groundwater table is controlled below setting value, save worry conveniently.
8, take full advantage of the original drainage system of basement, make input-output ratio reach maximum.
Accompanying drawing explanation
Fig. 1 is that the present invention prevents basement bottom board from swelling, the embodiment 1 of the device of infiltration, the figure of embodiment 3;
Fig. 2 is that the present invention prevents basement bottom board from swelling, the figure of the embodiment 2 of the device of infiltration;
Device name and sequence number in figure:
1-sump; 2-has the container of filter opening; 3-aqueduct; 4-hydraulic-pressure regulating valve
The container 2 having filter opening is provided with in sump 1, with sandstone loaded filter landfill between sump 1 and the container 2 having filter opening, surrounding and the bottom geotextiles of sump 1 are wrapped up, the outer wall having the container 2 of filter opening is wrapped over filter screen, be provided with aqueduct 3 in sump, aqueduct 3 is connected with the drainage system of basement.Bend pipe is provided with above described aqueduct 3.Pressure regulator 4 is provided with above described aqueduct.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described:
Embodiment 1
The long 600mm of sump, wide 600mm, high 600mm, sump surrounding and bottom geotextiles are wrapped up, the container having filter opening is installed in sump, the container having filter opening adopts stainless steel tube to make, external diameter 194mm, wall thickness 6mm, long 550mm, have the aperture 20mm of the container of filter opening, pitch of holes 50mm, plum blossom-shaped is arranged, the container having filter opening is wound around 40 order copper screen packs outward, fill up with clean gravelly sand between sump and the container having filter opening, the top having the container of filter opening communicates with aqueduct, the aqueduct other end is connected with basement drainage system.Underground water, by from the effect of seepage stream, by the filtration of geotextiles, gravelly sand, copper screen pack, enters stainless-steel pipe enrichment; reach certain pressure; automatically be discharged to basement drainage system by aqueduct, play and control hydraulic pressure under base plate, protection base plate is by the effect that hydraulic pressure destroys.
Embodiment 2
As shown in Figure 2, material therefor and working design method are with embodiment 1, difference is exactly that a hydraulic-pressure regulating valve installed by aqueduct, the pressure of design hydraulic-pressure regulating valve is a value, when local lower shoe hydraulic pressure reaches setting value, hydraulic-pressure regulating valve is opened, and the water stored in stainless steel tube is discharged to basement drainage system by aqueduct, Floor water pressure drop is low want certain value after, hydraulic-pressure regulating valve is closed automatically.
Embodiment 3
As shown in Figure 1, sump, the size having the container of filter opening, connection mode are identical with embodiment 1, and difference is that the material of the container having filter opening adopts highstrenghtpiston, and aqueduct also adopts highstrenghtpiston's material.
application example
Mansion, Nanning basement has exceeded former design water level due to actual groundwater table, cause base plate and part beam column generation bulge fracture, adopt the present invention a kind of prevent basement bottom board swell, infiltration device carry out reinforcement solutions, the container having filter opening is provided with in sump, surrounding and the bottom geotextiles of sump are wrapped up, gravelly sand landfill is used between sump and the container having filter opening, the container outer wall having filter opening is wrapped over filter screen, be provided with aqueduct in sump, aqueduct is connected with the drainage system of basement.Described sump, long 500 ~ 800mm, wide 500 ~ 800mm, high 700mm.Sump surrounding and bottom geotextiles are wrapped up.The described container having filter opening, material adopts stainless steel or highstrenghtpiston, external diameter 200mm, wall thickness 6mm, long 600mm, the aperture 100mm of filter opening, pitch of holes 30mm, considers hole and is arranged as regular distribution or irregular distribution.The container external application 40 order copper filter screen having filter opening is wound around parcel.Described gravelly sand size is diameter is 5 ~ 10mm.Described aqueduct, material adopts stainless steel, and hydraulic-pressure regulating valve installed by aqueduct, and the mode that aqueduct is connected with the drainage system of basement is by directly being discharged after groundwater pressure exceedes design limiting value by hydraulic-pressure regulating valve.Compared with the processing scheme of anti-float anchor rod, this processing method easy construction, the duration is short, and cost obviously reduces.After adopting the method to process, through the investigation more than 1 year, even if in the situation being subjected to burst heavy showers, also find no basement floor constructions and occur to destroy or infiltration.
Claims (3)
1. the device preventing basement bottom board from swelling, seeping water, it is the attached reduction basement bottom board water pressure of building, prevent the device that base plate seeps water, it comprises from oozing sump and dewatering installation, it is characterized in that: in sump, be provided with the container having filter opening, with sandstone loaded filter landfill between sump and the container having filter opening, surrounding and the bottom geotextiles of sump are wrapped up, the outer wall having the container of filter opening is wrapped over filter screen, be provided with aqueduct in sump, aqueduct is connected with the drainage system of basement;
Bend pipe is provided with above described aqueduct; Pressure regulator is provided with above described aqueduct;
Described loaded filter is made up of graded sand and stone;
Described aqueduct is highstrenghtpiston's material or stainless steel, and the connected mode of aqueduct and basement drainage system is for directly to discharge after groundwater pressure exceedes design limiting value by hydraulic-pressure regulating valve or pressure relief device.
2. the device preventing basement bottom board from swelling, seeping water according to claim 1, is characterized in that: described sump: long 500 ~ 1000mm, wide 500 ~ 1000mm, high 500 ~ 1000mm.
3. the device preventing basement bottom board from swelling, seeping water according to claim 1, it is characterized in that: the container having filter opening adopts stainless steel or highstrenghtpiston's material: external diameter 100 ~ 300mm, wall thickness 5 ~ 10mm, long 500 ~ 1000mm, aperture 5 ~ the 20mm of filter opening, pitch of holes 10 ~ 50mm, regular distribution or irregular distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210563886.1A CN103061351B (en) | 2012-12-24 | 2012-12-24 | Prevent the device that basement bottom board swells, seeps water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210563886.1A CN103061351B (en) | 2012-12-24 | 2012-12-24 | Prevent the device that basement bottom board swells, seeps water |
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| CN103061351A CN103061351A (en) | 2013-04-24 |
| CN103061351B true CN103061351B (en) | 2015-08-26 |
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| CN201210563886.1A Active CN103061351B (en) | 2012-12-24 | 2012-12-24 | Prevent the device that basement bottom board swells, seeps water |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735329A (en) * | 2016-02-29 | 2016-07-06 | 成都绿迪科技有限公司 | Dewatering and drainage mechanism |
| CN105780820A (en) * | 2016-05-04 | 2016-07-20 | 中国电建集团华东勘测设计研究院有限公司 | Anti-floating structure of bottom plate of underground building |
| CN113445525B (en) * | 2021-09-01 | 2021-12-31 | 中铁十八局集团第五工程有限公司 | Method and structure for controlling water pressure of bottom plate in construction of bottom plate of foundation pit of deep foundation pit |
| CN113944179B (en) * | 2021-10-31 | 2023-05-09 | 北京中岩大地科技股份有限公司 | Construction method of pumping drainage dewatering structure of existing basement |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001032270A (en) * | 1999-07-21 | 2001-02-06 | Shimizu Corp | Steel-pipe column wall |
| CN101936010B (en) * | 2010-08-19 | 2012-02-08 | 天津二十冶建设有限公司 | Construction method of dewatering well in underground concrete structure |
| CN102433886A (en) * | 2011-09-27 | 2012-05-02 | 天津住宅集团建设工程总承包有限公司 | Construction method for adding water lowering well in water collecting well |
| CN102677702A (en) * | 2012-06-11 | 2012-09-19 | 昆明一建建设集团有限公司 | Precipitation blocking method for post-cast strip of basement baseplate |
| CN203188226U (en) * | 2012-12-24 | 2013-09-11 | 广西华蓝设计(集团)有限公司 | Device used for preventing bottom plate of basement from heave and water leakage |
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| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 530011 No. 39 East China Road, the Guangxi Zhuang Autonomous Region, Nanning Applicant after: Hualan (Group) Co. Ltd. Address before: 530011 No. 39 East China Road, the Guangxi Zhuang Autonomous Region, Nanning Applicant before: Guangxi Hualan Design (Group) Co., Ltd. |
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| CB03 | Change of inventor or designer information |
Inventor after: Liu Hong Inventor after: Chen Wenqiang Inventor after: Yu Gunian Inventor after: Liang Jun Inventor after: Lai Chunhong Inventor after: Zhu Chunhua Inventor before: Liu Hong Inventor before: Chen Wenqiang Inventor before: Yu Gunian Inventor before: Liang Jun |
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Free format text: CORRECT: APPLICANT; FROM: GUANGXI HUALAN DESIGN (GROUP) CO., LTD. TO: HUALAN DESIGN + CONSULTING (GROUP) CO., LTD. Free format text: CORRECT: INVENTOR; FROM: LIU HONG CHEN WENQIANG YU GUNIAN LIANG JUN TO: LIU HONG CHEN WENQIANG YU GUNIAN LIANG JUN LAI CHUNHONG ZHU CHUNHUA |
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