CN202627032U - Buoyancy release system for deep foundation slab - Google Patents

Buoyancy release system for deep foundation slab Download PDF

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Publication number
CN202627032U
CN202627032U CN2012202486595U CN201220248659U CN202627032U CN 202627032 U CN202627032 U CN 202627032U CN 2012202486595 U CN2012202486595 U CN 2012202486595U CN 201220248659 U CN201220248659 U CN 201220248659U CN 202627032 U CN202627032 U CN 202627032U
Authority
CN
China
Prior art keywords
layer
deep foundation
buoyancy
base plate
delivery system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2012202486595U
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Chinese (zh)
Inventor
陈明伟
庄建明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FUJIAN LONGCHENG CONSTRUCTION GROUP Co Ltd
Original Assignee
FUJIAN LONGCHENG CONSTRUCTION GROUP Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FUJIAN LONGCHENG CONSTRUCTION GROUP Co Ltd filed Critical FUJIAN LONGCHENG CONSTRUCTION GROUP Co Ltd
Priority to CN2012202486595U priority Critical patent/CN202627032U/en
Application granted granted Critical
Publication of CN202627032U publication Critical patent/CN202627032U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a buoyancy release system for a deep foundation slab. A medium coarse sand layer, a geotextile layer, a broken stone water filtering layer, a slurry isolating layer and a concrete cushion layer are paved between the foundation slab and an undisturbed soil layer from bottom to top in sequence; a blind ditch is dug on the undisturbed soil layer; and a porous water filtering pipe is arranged in the broken stone water filtering layer in the blind ditch. By the system, groundwater which infiltrates upwards can be filtered to the water filtering pipe, flows into a water collecting well and is extracted by a water pump, so that buoyancy applied to the foundation slab by the groundwater is greatly released and weakened, and the construction process is simple, convenient and safe.

Description

Deep foundation base plate buoyancy delivery system
Technical field
The utility model relates to the technical field of construction work, refers to a kind of deep foundation base plate buoyancy delivery system especially.
Background technology
Along with the continuous development of builing industry, the construction work underground structure develops towards big and dark direction gradually.The deep foundation base plate will bear increasing buoyancy force of underground water, if can not be effectively controlled, be prone to cause the structure floating distortion, and problems such as crack appear in wallboard, beam column junction.Traditional anti-float method adds uplift pile, uplift anchor, increase deadweight etc., but these method construction costs are high and expend the duration.
The utility model content
The utility model technical problem to be solved is to provide a kind of deep foundation base plate buoyancy delivery system that can effectively discharge and weaken underground water to the buoyancy of base plate, and the easy construction safety cost is low.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of deep foundation base plate buoyancy delivery system; Between sole plate and original state soil layer, lay medium-sand seam, geotechnological layer of cloth, rubble drainage layer, separated slurry layer and concrete cushion from the bottom to top successively; And on the original state soil layer, dig and establish french drain, in this french drain, be positioned at said rubble drainage layer and lay the porous water filtration pipe.
Be coated with geotextiles outside the described filter pipe.
Described is that plastic sheeting is at a distance from the slurry layer at a distance from the slurry layer.
The edge of said geotechnological layer of cloth is reserved with the anchorage length of certain-length, and this anchorage length reflexed is fixing on the said rubble drainage layer filler face of compacting, and lays upwardly extending said medium-sand seam in the outside of anchorage length reflexed.
After adopting such scheme; Because the utility model is located at sole plate and undisturbed soil interlayer with coarse sand, geotextiles, filter pipe, rubble, plastic sheeting etc. according to a definite sequence place Min layers; Make its function separately of each layer performance; Thereby can discharge, weaken the buoyancy of underground water, solve a deep foundation base plate come-up difficult problem sole plate.In addition, easy, the safety of native system work progress can improve construction efficiency, draws materials conveniently, requires low to construction environment, construction machinery.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of the said geotechnological layer of cloth external boundary of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to detail.
What the utility model disclosed is a kind of deep foundation base plate buoyancy delivery system, as shown in Figure 1, is the preferred embodiment of the utility model.Described deep foundation base plate buoyancy delivery system is between sole plate 6 and original state soil layer 8, to lay medium-sand seam 1, geotechnological layer of cloth 2, rubble drainage layer 3, separated slurry layer 4 and concrete cushion 5 from the bottom to top successively; And on original state soil layer 8, dig and establish french drain 81, in this french drain 81, be positioned at said rubble drainage layer 3 and lay porous water filtration pipe 7.
Further, can outside described filter pipe 7, be coated with geotextiles 71, so that further filter.In addition, described can be the separated layer of starching of plastic sheeting at a distance from slurry layer 4.
For fixing geotextiles; When laying geotechnological layer of cloth 2; Reserve the anchorage length 21 of certain-length on the edge of, this anchorage length generally is not less than 500mm, and these anchorage length 21 reflexeds are fixing on the rubble drainage layer filler face of compacting; Then lay upwardly extending medium-sand seam 1 in the outside of anchorage length reflexed, concrete structure is as shown in Figure 2.
The operating principle of the utility model is: will pass through medium-sand seam 1 coarse filtration after oozing on the underground water; Pass through filtration and infiltration to the filter pipe 7 of geotechnological layer of cloth 2 and sandstone drainage layer 3 again; Further filter the back along filter pipe 71 inflow collecting well (not shown)s through wrapping in filter pipe 7 outer geotextiles 71; Through suction pump underground water is extracted out at last, underground water is weakened by release greatly the buoyancy that sole plate 6 produces like this, and sole plate 6 is among the dynamic equilibrium.
The above is merely the preferred embodiment of the utility model, is not to be used for limiting the scope that the utility model is implemented.So variation or the modification in every case done, all should belong within the scope that the utility model patent contains according to the claim and the manual of the utility model.

Claims (4)

1. deep foundation base plate buoyancy delivery system; It is characterized in that: between sole plate and original state soil layer, lay medium-sand seam, geotechnological layer of cloth, rubble drainage layer, separated slurry layer and concrete cushion from the bottom to top successively; And on the original state soil layer, dig and establish french drain, in this french drain, be positioned at said rubble drainage layer and lay the porous water filtration pipe.
2. deep foundation base plate buoyancy delivery system according to claim 1 is characterized in that: be coated with geotextiles outside the described filter pipe.
3. deep foundation base plate buoyancy delivery system according to claim 1 is characterized in that: described is that plastic sheeting is at a distance from the slurry layer at a distance from the slurry layer.
4. deep foundation base plate buoyancy delivery system according to claim 1; It is characterized in that: the edge of said geotechnological layer of cloth is reserved with the anchorage length of certain-length; This anchorage length reflexed is fixing on the said rubble drainage layer filler face of compacting, and lays upwardly extending said medium-sand seam in the outside of anchorage length reflexed.
CN2012202486595U 2012-05-30 2012-05-30 Buoyancy release system for deep foundation slab Expired - Fee Related CN202627032U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012202486595U CN202627032U (en) 2012-05-30 2012-05-30 Buoyancy release system for deep foundation slab

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012202486595U CN202627032U (en) 2012-05-30 2012-05-30 Buoyancy release system for deep foundation slab

Publications (1)

Publication Number Publication Date
CN202627032U true CN202627032U (en) 2012-12-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012202486595U Expired - Fee Related CN202627032U (en) 2012-05-30 2012-05-30 Buoyancy release system for deep foundation slab

Country Status (1)

Country Link
CN (1) CN202627032U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103147464A (en) * 2013-04-01 2013-06-12 四川省建筑科学研究院 Pressure-releasing structure of basement anti-floating plate and construction method thereof
CN103898915A (en) * 2014-04-18 2014-07-02 中国二十二冶集团有限公司 Anti-floating and waterstop construction method for small-area deep foundation pit of building
CN105544621A (en) * 2015-12-11 2016-05-04 中衡设计集团股份有限公司 Building structure for lowering designed anti-floating water level of heap slope building
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
CN108005115A (en) * 2017-12-12 2018-05-08 中国水利水电第十工程局有限公司 Underground Hydro-electric Power Station drainage system
CN108018834A (en) * 2017-12-12 2018-05-11 中国水利水电第十工程局有限公司 Power station underground power house cavern

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103147464A (en) * 2013-04-01 2013-06-12 四川省建筑科学研究院 Pressure-releasing structure of basement anti-floating plate and construction method thereof
CN103147464B (en) * 2013-04-01 2015-01-28 四川省建筑科学研究院 Pressure-releasing structure of basement anti-floating plate and construction method thereof
CN103898915A (en) * 2014-04-18 2014-07-02 中国二十二冶集团有限公司 Anti-floating and waterstop construction method for small-area deep foundation pit of building
CN103898915B (en) * 2014-04-18 2016-02-10 中国二十二冶集团有限公司 Building small-area deep foundation pit anti-floating water stop construction method
CN105544621A (en) * 2015-12-11 2016-05-04 中衡设计集团股份有限公司 Building structure for lowering designed anti-floating water level of heap slope building
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
CN108005115A (en) * 2017-12-12 2018-05-08 中国水利水电第十工程局有限公司 Underground Hydro-electric Power Station drainage system
CN108018834A (en) * 2017-12-12 2018-05-11 中国水利水电第十工程局有限公司 Power station underground power house cavern
CN108005115B (en) * 2017-12-12 2020-06-30 中国水利水电第十工程局有限公司 Drainage system for underground powerhouse chamber of hydropower station

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121226

Termination date: 20200530

CF01 Termination of patent right due to non-payment of annual fee