CN104712000A - Pressure reduction and water drainage system under ultra-deep underground space structure bottom plate - Google Patents
Pressure reduction and water drainage system under ultra-deep underground space structure bottom plate Download PDFInfo
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- CN104712000A CN104712000A CN201510129008.2A CN201510129008A CN104712000A CN 104712000 A CN104712000 A CN 104712000A CN 201510129008 A CN201510129008 A CN 201510129008A CN 104712000 A CN104712000 A CN 104712000A
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- water drainage
- drainage system
- gutter
- inverted filter
- water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/10—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure
- E02D31/12—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure against upward hydraulic pressure
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a pressure reduction and water drainage system under an ultra-deep underground space structure bottom plate. The pressure reduction and water drainage system is characterized by being composed of an inverted filter, water drainage pipes, water collection wells and pumping wells, the inverted filter, the water drainage pipes, the water collection wells and the pumping wells are arranged below the bottom plate, and the water drainage pipes form a mesh-shaped water drainage pipe network through a plurality of steel pipes provided with small holes; the water collection wells are arranged at the joints of the water drainage pipes which are longitudinally and transversely intersected; the pumping wells are arranged outside the water drainage pipes and communicated with the water collection wells; underground water is converged to the water collection wells from the drainage pipes in the inverted filter and is pumped out through the pumping wells. Compared with the prior art, the requirement for the anti-crack performance of the bottom plate is low, the pressure reduction effect and the anti-floating effect are good, the surrounding ground surface settlement can be effectively controlled while the bottom plate meets the anti-floating requirement, the number of anti-floating piles which are arranged is greatly decreased, the structure is simple, construction is convenient, the engineering cost is low, and the pressure reduction and water drainage system is particularly suitable for the anti-floating design of an underground space structure which is 30 m deep.
Description
Technical field
The present invention relates to underground structure anti-floating technical field, specifically reduce pressure under a kind of ultra-deep underground space structure base plate drainage system.
Background technology
Along with the acceleration of urbanization process, the exploitation of the underground space more and more comes into one's own, for the underground building such as Large Underground Emporium, underground parking garage, the uplift pressure that its basement bottom board produces due to underground water and surface water infiltration, anti-floating also becomes the emphasis in engineering design.
At present, measure of anti float in underground construction mainly adopts and arrange anti-float anchor rod and anti-floating pile under base plate, by increase underground structure covering weight or establishing anti-float anchor rod, uplift pile balance buoyancy force of underground water, the method structure stress is reasonable, later maintenance is simple, convenient, but engineering cost drops into comparatively large, and require higher to structure cracking resistance, antifatigue.
Summary of the invention
Reduce pressure under the object of the invention is a kind of ultra-deep underground space structure base plate designed for the deficiencies in the prior art drainage system, under adopting structure base slab, sandstone inverted filter and gridding drainage pipeline networks are set, underground water under base plate is collected in collecting well by the drainage pipeline networks being arranged on sandstone inverted filter and pumps, limited reduction seepage in underground is to the uplift pressure of base plate, effect of easing stress is obvious, while meeting the requirement of structure base slab anti-floating, the ground settlement of surrounding environment is also can be controlled in allowed band, structure is simple, low to the demand of anti-crack of base plate, short construction period, economy is high, anti-floating is effective, especially the Anti-floating design of 30m depth underground space structures is adapted to.
The technical scheme realizing the object of the invention is: reduce pressure under a kind of ultra-deep underground space structure base plate drainage system, be characterized in that this decompression drainage system is made up of rubble inverted filter, gutter, collecting well and the pumped well be arranged under ultra-deep structure base slab, described gutter is be arranged on the steel pipe that in rubble inverted filter, some are evenly covered with into water aperture, and some gutters are to be connected to form latticed drainage pipeline networks in length and breadth; Described collecting well is arranged on the gutter junction of intersecting in length and breadth outside drainage pipeline networks; Described pumped well be arranged on drainage pipeline networks side and with collecting well one_to_one corresponding, pumped well is communicated with collecting well by gutter, and seepage in underground confluxes to collecting well by the gutter in rubble inverted filter, pumps drainage pipeline networks by pumped well.
The cover plate of described collecting well is provided with one way valve.
Described rubble inverted filter lays waterproof geotextiles, under rubble inverted filter, lays permeable geotextiles.
Described gutter outer wrapping geotechnique anti-filter cloth.
The present invention compared with prior art has, decompression low to base plate demand of anti-crack, anti-floating is effective, and easy construction, duration are short, operating efficiency is high, engineering cost is low, while meeting the requirement of structure base slab anti-floating, the ground settlement of surrounding environment is also can be controlled in allowed band, greatly reduces the setting of anti-floating pile, especially adapt to the Anti-floating design of 30m depth underground space structures.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A-A sectional drawing of Fig. 1;
Fig. 3 is collecting well structural representation;
Fig. 4 is drain structure schematic diagram;
Fig. 5 is the B-B sectional drawing of Fig. 4.
Detailed description of the invention
Accompanying drawings 1 ~ accompanying drawing 2, the present invention is made up of the rubble inverted filter 1 be arranged under structure base slab 11, gutter 2, collecting well 3 and pumped well 9, described gutter 2 is for being arranged on the steel pipe that in rubble inverted filter 1, some are evenly covered with into water aperture 8, and some gutters 2 are to be connected to form latticed drainage pipeline networks in length and breadth; Described collecting well 3 is arranged on gutter 2 Nodes that outside is connected in length and breadth; Described pumped well 9 be arranged on drainage pipeline networks side and with collecting well 3 one_to_one corresponding, pumped well 9 is communicated with collecting well 3 by gutter 2, and seepage in underground confluxes to collecting well 3 by the gutter 2 in rubble inverted filter 1, pumps drainage pipeline networks by pumped well 9.
Accompanying drawings 3, described collecting well 3 is arranged on the Nodes that rubble inverted filter 1 internal drainage pipe 2 is connected in length and breadth, and the cover plate of collecting well 3 is provided with one way valve 4.Described rubble inverted filter 1 is arranged on structure base slab 11 times, rubble inverted filter 1 is laid waterproof geotextiles 5, and rubble inverted filter lays permeable geotextiles 6 for 1 time.
Accompanying drawings 4 ~ accompanying drawing 5, described gutter 2 is evenly be covered with the steel pipe into water aperture 8, gutter 2 outer wrapping geotechnique anti-filter cloth 7.
The present invention is construction like this; Being excavated to 0.4 ~ 1.0m under the design elevation of structure base slab 11 is bottom, bottom is laid permeable geotextiles 6, then in permeable geotextiles 6, rubble inverted filter 1 is laid, gutter 2 to be arranged in rubble inverted filter 1 and to be connected to form latticed drainage pipeline networks in length and breadth, rubble inverted filter 1 is laid to the design elevation of structure base slab 11, and rubble inverted filter 1 is laid waterproof geotextiles 5.Collecting well 3 is arranged on gutter 2 Nodes that outside is connected in length and breadth.Pumped well 9 be arranged on drainage pipeline networks side and with collecting well 3 one_to_one corresponding, pumped well 9 is communicated with collecting well 3 by gutter 2.Seepage in underground is confluxed to collecting well 3 by the gutter 2 in rubble inverted filter 1 and forms latticed drainage pipeline networks, by pumped well 9, seepage in underground is pumped drainage pipeline networks when the water of collecting well 3 exceedes certain limit, reduce underground water to the uplift pressure of structure base slab 11, structure base slab 11 is made not only to meet anti-floating requirement, and the ground settlement of surrounding environment is also can be controlled in allowed band, greatly reduce the setting of anti-floating pile, especially adapt to the Anti-floating design of 30m depth underground space structures.
More than just the present invention is further illustrated, and be not used to limit this patent, allly implements for the present invention's equivalence, within the right that all should be contained in this patent.
Claims (4)
1. reduce pressure under a ultra-deep underground space structure base plate drainage system, it is characterized in that this decompression drainage system is made up of rubble inverted filter, gutter, collecting well and the pumped well be arranged under structure base slab, described gutter is be arranged on the steel pipe that in rubble inverted filter, some are evenly covered with into water aperture, and some gutters are to be connected to form latticed drainage pipeline networks in length and breadth; Described collecting well is arranged on the gutter junction of intersecting in length and breadth outside drainage pipeline networks; Described pumped well be arranged on drainage pipeline networks side and with collecting well one_to_one corresponding, pumped well is communicated with collecting well by gutter, and seepage in underground confluxes to collecting well by the gutter in rubble inverted filter, pumps drainage pipeline networks by pumped well.
2. reduce pressure under ultra-deep underground space structure base plate drainage system according to claim 1, it is characterized in that the cover plate of described collecting well is provided with one way valve.
3. reduce pressure under ultra-deep underground space structure base plate drainage system according to claim 1, it is characterized in that described rubble inverted filter lays waterproof geotextiles, lay permeable geotextiles under rubble inverted filter.
4. reduce pressure under ultra-deep underground space structure base plate drainage system according to claim 1, it is characterized in that described gutter outer wrapping geotechnique anti-filter cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510129008.2A CN104712000A (en) | 2015-03-24 | 2015-03-24 | Pressure reduction and water drainage system under ultra-deep underground space structure bottom plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510129008.2A CN104712000A (en) | 2015-03-24 | 2015-03-24 | Pressure reduction and water drainage system under ultra-deep underground space structure bottom plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104712000A true CN104712000A (en) | 2015-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510129008.2A Pending CN104712000A (en) | 2015-03-24 | 2015-03-24 | Pressure reduction and water drainage system under ultra-deep underground space structure bottom plate |
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| CN (1) | CN104712000A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201002A (en) * | 2015-10-23 | 2015-12-30 | 金磐集团有限公司 | Underground structure seepage drainage system and construction method thereof |
| CN108331033A (en) * | 2018-02-06 | 2018-07-27 | 中船第九设计研究院工程有限公司 | A kind of LNG sunken tanks bottom plate anti-floating pressure reduction structure and its construction |
| CN114855846A (en) * | 2022-06-08 | 2022-08-05 | 贵州建工兴印建筑工程有限公司 | Underground seepage-proofing pressure-reducing anti-floating blind pipe structure and construction method thereof |
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| JP2010065389A (en) * | 2008-09-08 | 2010-03-25 | Taisei Corp | Unequal setting control structure of structure |
| CN201762733U (en) * | 2010-08-26 | 2011-03-16 | 中国京冶工程技术有限公司 | Controllable decompression drainage floatation-resistant structure of building base |
| US20120057941A1 (en) * | 2010-09-03 | 2012-03-08 | Liiban Affi | Method and device for supporting lightly loaded structures and pavements on highly expansive soils |
| CN203729348U (en) * | 2014-01-17 | 2014-07-23 | 长沙有色冶金设计研究院有限公司 | Water storage structure anti-floating device |
| CN204023593U (en) * | 2014-08-30 | 2014-12-17 | 上海联境建筑工程设计有限公司 | Reduce the water proof drainage system of underground hydrostatic water table |
| CN204510291U (en) * | 2015-03-24 | 2015-07-29 | 中船第九设计研究院工程有限公司 | Reduce pressure under a kind of ultra-deep underground space structure base plate drainage system |
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2015
- 2015-03-24 CN CN201510129008.2A patent/CN104712000A/en active Pending
Patent Citations (6)
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| JP2010065389A (en) * | 2008-09-08 | 2010-03-25 | Taisei Corp | Unequal setting control structure of structure |
| CN201762733U (en) * | 2010-08-26 | 2011-03-16 | 中国京冶工程技术有限公司 | Controllable decompression drainage floatation-resistant structure of building base |
| US20120057941A1 (en) * | 2010-09-03 | 2012-03-08 | Liiban Affi | Method and device for supporting lightly loaded structures and pavements on highly expansive soils |
| CN203729348U (en) * | 2014-01-17 | 2014-07-23 | 长沙有色冶金设计研究院有限公司 | Water storage structure anti-floating device |
| CN204023593U (en) * | 2014-08-30 | 2014-12-17 | 上海联境建筑工程设计有限公司 | Reduce the water proof drainage system of underground hydrostatic water table |
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| 徐伟等: "《土木工程施工基本原理》", 31 December 2012, 同济大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201002A (en) * | 2015-10-23 | 2015-12-30 | 金磐集团有限公司 | Underground structure seepage drainage system and construction method thereof |
| CN108331033A (en) * | 2018-02-06 | 2018-07-27 | 中船第九设计研究院工程有限公司 | A kind of LNG sunken tanks bottom plate anti-floating pressure reduction structure and its construction |
| CN114855846A (en) * | 2022-06-08 | 2022-08-05 | 贵州建工兴印建筑工程有限公司 | Underground seepage-proofing pressure-reducing anti-floating blind pipe structure and construction method thereof |
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Application publication date: 20150617 |