CN103061351A - Device for preventing basement bottom floor from heaving and water permeating - Google Patents
Device for preventing basement bottom floor from heaving and water permeating Download PDFInfo
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- CN103061351A CN103061351A CN2012105638861A CN201210563886A CN103061351A CN 103061351 A CN103061351 A CN 103061351A CN 2012105638861 A CN2012105638861 A CN 2012105638861A CN 201210563886 A CN201210563886 A CN 201210563886A CN 103061351 A CN103061351 A CN 103061351A
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Abstract
The invention provides a device for preventing a basement bottom floor from heaving and water permeating. The device comprises self-permeating water collecting pits and a drainage device, the self-permeating water collecting pits are generally distributed along a basement foundation beam, peripheries and bottoms of the self-permeating water collecting pits are covered by geotechnical cloth, gaps between the water collecting pits and containers with filtering holes are filled by sand inverted filters, filter nets are wound on outer walls of the containers with the filtering holes, water guide tubes are arranged in the containers, and the water guide tubes are connected with an indoor drainage system of the basement. By means of the device for preventing the basement bottom floor from heaving and water permeating, the basement bottom floor which is damaged under the pressure action of underground water can be radically repaired, and repair expenses are low. As for a new construction, by means of the device, the underground water level can be controlled within a certain range according to an anti-floating bearing capacity of the basement bottom floor, the construction costs of the basement are lowered, and the device is easily acceptable.
Description
Technical field
The present invention relates to a kind of device that prevents basement bottom board protuberance, infiltration, belong to building field, can be used for maintenance or the structural deterioration of prevention basement bottom board, infiltration phenomenon.
Background technology
The influence factor that groundwater table just changes is a lot, accurately provide design of basement anti-floating water level difficult.Current have a lot of building basements hydrogeological situation owing to the place periphery after building up to change, or run into the factors such as heavy showers, cause basement bottom board to be subject to surpassing the underground water buoyancy effect of former design load and the infiltration of ftractureing, even the generation bulge fracture.Solution has:
1. improve the anti-floating water level when designing, although this method can be avoided basement generation bulge fracture or cracking infiltration from design, raising anti-floating water level can obviously increase Civil Cost and prolongation duration.
2. the place of cracking infiltration is injected and met steeping in water for reconstitution bubble polyurethane water-stop, reach the purpose of water sealing and seepage resistane, but this method can only solve existing leakage problems, can not be for the treatment of the basement bulge fracture.And too high water pressure still probably causes the concrete cracking of basement bottom board in other places, formed and repaiied today, and leak tomorrow, leaks the phenomenon of year annual overhaul every year.
3. patent " a kind of water guider that prevents basement bottom board protuberance, the infiltration " (patent No.: CN202247923U) provide a kind of water guider that prevents basement bottom board protuberance, infiltration.It is such practical function: the bottom, ater-casting around on basement ground is provided with concrete cushion, the ground of basement is provided with the water filter plate that concavo-convex wedge mouth connects, water filter plate is provided with asphaltic felt, asphaltic felt is provided with screed, ater-casting by basement is as the water guide band, and the water of basement is drained into the backward outer pump drainage of collecting well that the ater-casting connects.But there is significant limitation in the method: at first only can be used for grassroot project, and can't be for the treatment of seepage and the bulge fracture of built basement; Secondly because it utilizes basement post-pouring zone as the water guide band, the draining of the construction stage before the ater-casting is not yet sealed can only be used for, the effect of reduction, controlling groundwater level can not be played after the sealing of ater-casting; Last be generally about 35 meters because the ater-casting spacing is larger, be subject to certain limitation with the ater-casting as the dewatering effect of water guide band.
4. anti-float anchor rod is a kind of basement Anti-floating design method commonly used, 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.Compare anti-float anchor rod with the method such as uplift pile and have short, the advantage such as construction is convenient, cost is relatively low of duration.But it can't 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 the basement that is applied to build of anti-float anchor rod, can expose a large amount of holes by original complete basement bottom board and waterproofing course, destroyed the integrality of concrete self and waterproofing course, thereby produce a large amount of may seeping water a little, waterproofing work is very difficult, has more serious infiltration hidden danger.
Because the deficiency that existing processing basement bottom board protuberance and cracking infiltration technology exist will fundamentally solve the difficult problem that the basement bottom board cracking seeps water, in the urgent need to taking effectively reliable and economically viable method.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can overcome the prior art weak point, when preventing that effectively groundwater table from exceeding former design load, the device of basement bottom board generation bulge fracture or cracking infiltration.
The present invention is achieved in that
Sump and dewatering installation are oozed in one of design and installation certainly under basement bottom board, underground water passes through sump, the rear enrichment of filtration also is stored in the container that has filter opening, when its pressure surpasses preset value, the hydraulic-pressure regulating valve or the pressure relief device that are installed on the aqueduct are namely opened, underground water enters the drainage system of basement through aqueduct, reach the effect of falling the basement bottom board water pressure of dredging, groundwater pressure is controlled at below the design load, prevents that effectively basement bottom board from causing bulge fracture or cracking infiltration because hydraulic pressure is excessive.It comprises sump and dewatering installation, it is characterized in that: be provided with the container that has filter opening in the sump, sump and having between the container of filter opening with sandstone loaded filter landfill, wrap up with geotextiles around the sump and bottom, the outer wall that has the container of filter opening twines screen pack, be provided with aqueduct in the sump, aqueduct is connected with the drainage system of basement.
Described aqueduct top is provided with bend pipe.
Described aqueduct top is provided with pressure regulator.
Described sump: long 500～1000mm, wide 500～1000mm, high 500～1000mm.
Described loaded filter is comprised of graded sand and stone.
The described container that has 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 discharging after groundwater pressure surpasses the design limiting value by hydraulic-pressure regulating valve or pressure relief device.
The present invention compared with prior art, its substantial characteristics and significant progress are:
1, widely applicable, both can be used for the anti-floating consolidation process to built basement bottom board, also can be used for grassroot project, there is not the use restriction of Geological condition.
2, on design concept, underground water is changed into anti-lean phase combination by the simple opposing of prior art or the method for designing of dredging, groundwater table is controlled at rational limit value, given full play to the own anti-pressure ability of base plate, obtain optimum economic benefit.
3, filtering material need to be installed all under basement bottom board, only need to several sumps be set and dewatering installation just can produce a desired effect at basement, economical with materials, convenient and quick construction, the duration lacks.
4, certainly the overflow position of sump is not subjected to the restriction of position, ater-casting, flexible arrangement as required, and the efficient that reduces the base plate groundwater pressure is high.
5, compare with the method for the anti-basement protuberance of anti-float anchor rod, infiltration, change opposing into and combine with dredging by resisting water pressure fully, avoided on base plate and waterproofing course in a large number perforates and the hidden leakage defect that causes, reliability is higher.And be not subjected to the restriction of geological conditions, construct more convenient, the duration short, cost is starkly lower than anti-float anchor rod.
6, be used for that the base plate that bulge fracture, cracking infiltration occur because being subject to water pressure is carried out reinforcement and repair, comprehensive cost is low, deals with problems from basic source, has avoided today bad, and repair tomorrow, year annual overhaul, every year bad phenomenon.
7, hydraulic-pressure regulating valve or pressure relief device are installed on the drainage system, by the effect of control valve, can realize the thin base plate hydraulic pressure that falls of automation, discharge underground water, groundwater table is controlled at below the setting value, save worry conveniently.
8, take full advantage of the original drainage system of basement, make input-output ratio reach maximum.
Description of drawings
Fig. 1 is the embodiment 1 that the present invention prevents the device of basement bottom board protuberance, infiltration, the figure of embodiment 3;
Fig. 2 is that the present invention prevents that basement bottom board from swelling, the figure of the embodiment 2 of the device of infiltration;
Device name and sequence number among the figure:
The 1-sump; 2-has the container of filter opening; The 3-aqueduct; 4-hydraulic-pressure regulating valve
Be provided with the container 2 that has filter opening in the sump 1, sump 1 and having between the container 2 of filter opening with sandstone loaded filter landfill, wrap up with geotextiles around the sump 1 and bottom, the outer wall that has the container 2 of filter opening twines screen pack, be provided with aqueduct 3 in the sump, aqueduct 3 is connected with the drainage system of basement.Described aqueduct 3 tops are provided with bend pipe.Described aqueduct top is provided with pressure regulator 4.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described:
Embodiment 1
The long 600mm of sump, wide 600mm, high 600mm, wrap up with geotextiles around the sump and bottom, the container that has filter opening is installed in the sump, the container that has 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, have the outer 40 order copper screen packs that twine of container of filter opening, sump and having between the container of filter opening fills up with clean gravelly sand, and the top that has the container of filter opening communicates with aqueduct, and the aqueduct other end links to each other with basement drainage system.Underground water passes through from the effect of seepage stream, and the filtration by geotextiles, gravelly sand, copper screen pack enters the stainless-steel pipe enrichment; reach certain pressure; automatically be discharged to basement drainage system by aqueduct, play hydraulic pressure under the control base plate, the effect that the protection base plate is not destroyed by hydraulic pressure.
As shown in Figure 2, material therefor and working design method are with embodiment 1, difference is exactly that a hydraulic-pressure regulating valve is installed on the aqueduct, the pressure of design hydraulic-pressure regulating valve is a value, when local lower shoe hydraulic pressure reached setting value, hydraulic-pressure regulating valve was opened, and the water that stores in the stainless steel tube is discharged to basement drainage system by aqueduct, after the Floor water pressure drop is hanged down and is wanted certain value, the hydraulic-pressure regulating valve autoshutdown.
As shown in Figure 1, sump, the size that has the container of filter opening, connection mode are identical with embodiment 1, and difference is that the material that has the container of filter opening adopts the highstrenghtpiston, and aqueduct also adopts highstrenghtpiston's material.
Application example
Nanning mansion basement is because actual groundwater table has surpassed former design water level, cause base plate and part beam column generation bulge fracture, adopt a kind of device of basement bottom board protuberance, infiltration that prevents of the present invention to carry out the reinforcement processing, be provided with the container that has filter opening in the sump, wrap up with geotextiles around the sump and bottom, sump and have between the container of filter opening and use the gravelly sand landfill, the container outer wall that has filter opening twines screen pack, be provided with aqueduct in the sump, aqueduct is connected with the drainage system of basement.Described sump, long 500～800mm, wide 500～800mm, high 700mm.Wrap up with geotextiles around the sump and bottom.The described container that has 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 the hole and is arranged as regular distribution or irregular distribution.The container external application 40 order copper filter screens that have filter opening twine parcel.Described gravelly sand size is 5～10mm for diameter.Described aqueduct, material adopts stainless steel, and hydraulic-pressure regulating valve is installed on the aqueduct, and the mode that aqueduct is connected with the drainage system of basement is for directly discharging after groundwater pressure surpasses the design limiting value by hydraulic-pressure regulating valve.Compare 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 in the situation of heavy showers that is subjected to happen suddenly, also find no basement bottom board structure failure or infiltration.
Claims (7)
1. one kind prevents basement bottom board protuberance, the device that seeps water, it is the attached reduction basement bottom board water pressure of building, prevent the device of base plate infiltration, it comprises from oozing sump and dewatering installation, it is characterized in that: be provided with the container that has filter opening in the sump, sump and having between the container of filter opening with sandstone loaded filter landfill, wrap up with geotextiles around the sump and bottom, the outer wall that has the container of filter opening twines screen pack, be provided with aqueduct in the sump, aqueduct is connected with the drainage system of basement.
2. the device that prevents basement bottom board protuberance, infiltration according to claim 1 is characterized in that: be provided with bend pipe above the aqueduct.
3. the device that prevents basement bottom board protuberance, infiltration according to claim 1 is characterized in that: be provided with pressure regulator above the aqueduct.
4. the device that prevents basement bottom board protuberance, infiltration according to claim 1 is characterized in that: described sump: long 500～1000mm, wide 500～1000mm, high 500～1000mm.
5. the device that prevents basement bottom board protuberance, infiltration according to claim 1, it is characterized in that: described loaded filter is comprised of graded sand and stone.
6. the device that prevents basement bottom board protuberance, infiltration according to claim 1, it is characterized in that: the container that has filter opening adopts stainless steel or highstrenghtpiston's material: external diameter 100～300mm, wall thickness 5～10mm, aperture 5～the 20mm of long 500～1000mm filter opening, pitch of holes 10～50mm, regular distribution or irregular distribution.
7. the device that prevents basement bottom board protuberance, infiltration according to claim 1, it is characterized in that: described aqueduct: be highstrenghtpiston's material or stainless steel, the connected mode of aqueduct and basement drainage system is for directly discharging after groundwater pressure surpasses the design limiting value by hydraulic-pressure regulating valve or pressure relief device.
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 |
Applications Claiming Priority (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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| CN103061351A true CN103061351A (en) | 2013-04-24 |
| CN103061351B 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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Cited By (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 |
| CN113445525A (en) * | 2021-09-01 | 2021-09-28 | 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 |
| CN113944179A (en) * | 2021-10-31 | 2022-01-18 | 北京中岩大地科技股份有限公司 | Construction method of existing basement pumping drainage precipitation structure |
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| JP2001032270A (en) * | 1999-07-21 | 2001-02-06 | Shimizu Corp | Steel-pipe column wall |
| CN101936010A (en) * | 2010-08-19 | 2011-01-05 | 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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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001032270A (en) * | 1999-07-21 | 2001-02-06 | Shimizu Corp | Steel-pipe column wall |
| CN101936010A (en) * | 2010-08-19 | 2011-01-05 | 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 |
Cited By (5)
| 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 |
| CN113445525A (en) * | 2021-09-01 | 2021-09-28 | 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 |
| 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 |
| CN113944179A (en) * | 2021-10-31 | 2022-01-18 | 北京中岩大地科技股份有限公司 | Construction method of existing basement pumping drainage precipitation structure |
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| Publication number | Publication date |
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| CN103061351B (en) | 2015-08-26 |
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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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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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