CN202689031U - Deep foundation pit retaining and protecting retaining wall - Google Patents

Deep foundation pit retaining and protecting retaining wall Download PDF

Info

Publication number
CN202689031U
CN202689031U CN 201220236385 CN201220236385U CN202689031U CN 202689031 U CN202689031 U CN 202689031U CN 201220236385 CN201220236385 CN 201220236385 CN 201220236385 U CN201220236385 U CN 201220236385U CN 202689031 U CN202689031 U CN 202689031U
Authority
CN
China
Prior art keywords
cement
soil water
foundation pit
deep foundation
prefabricated tubular
Prior art date
Application number
CN 201220236385
Other languages
Chinese (zh)
Inventor
周继忠
庄金平
吴建雄
张常涛
Original Assignee
福建工程学院
福建省第一建筑工程公司
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 福建工程学院, 福建省第一建筑工程公司 filed Critical 福建工程学院
Priority to CN 201220236385 priority Critical patent/CN202689031U/en
Application granted granted Critical
Publication of CN202689031U publication Critical patent/CN202689031U/en

Links

Abstract

The utility model provides a deep foundation pit retaining and protecting retaining wall. The deep foundation pit retaining and protecting retaining wall comprises a cement soil water-stopping curtain arranged outside the deep foundation pit. A plurality of prestressed concrete prefabricated tubular piles are submerged in the cement soil water-stopping curtain at intervals, a reinforced concrete top beam is arranged on the top of the cement soil water-stopping curtain, and the upper end of each prestressed concrete prefabricated tubular pile is embedded into the reinforced concrete top beam to form an integrated body. Meanwhile, the reinforced concrete top beam can be used as a supporting part in the pit or a supporting point of a soil bolt according to demands. The reinforced concrete top beam, the prestressed concrete prefabricated tubular piles and the cement soil water-stopping curtain are combined closely to form an integrated body, and therefore the whole retaining wall is reliable in stress, good in water-stopping effect, convenient to construct and low in construction cost. After excavation of the foundation pit, the water-stopping curtain is exposed on the surface directly, and if leakage sites exist, people can find and repair the leakage sites easily.

Description

The deep foundation pit support barricade

[technical field]

The utility model relates to the multiple material handling method of deep foundation pit field, particularly a kind of deep foundation pit support barricade.

[background technology]

Along with expanding economy, urban land anxiety, highrise building is more and more, nearly all highrise building all is provided with basement, and in the basement deep foundation pit earthwork digging, limited by the impact that is subjected to peripheral building, underground utilities and construction plant, vertical supporting barricade is set on the foundation ditch limit more.

Existing deep foundation pit support barricade, general commonly used have concrete underground continuous wall, concrete piling barricade, steel sheet pile barricade, an EFFECT OF CEMENT STABILIZED SOIL RETAINING WALL; The concrete underground continuous wall barricade is safe and reliable, but cost is high; The concrete piling barricade is because stake is discontinuous, need to increase measures of preventing water, the safe handling of guarantee barricade, and the measures of preventing water of traditional concrete piling wall-retaining structure is to increase water-stop curtain in campshed barricade back, campshed and water-stop curtain respectively are integrated, discontinuity, and the two is in conjunction with there being hidden danger, easily seepage, and breakthrough is difficult for finding.The EFFECT OF CEMENT STABILIZED SOIL RETAINING WALL continuity is good, effective sealing, but the intensity of cement-soil is very low, and especially tensile strength is extremely low, and generally 0.1MPa only keeps off native ability.

[summary of the invention]

The technical problems to be solved in the utility model, be to provide a kind of deep foundation pit support barricade that in the cement-soil water-stop curtain, sinks at a certain distance the prestressed concrete prefabricated tubular pile, at the barricade top steel concrete Guan Liang is set, steel concrete Guan Liang is linked to be integral body with each prestressed concrete prefabricated tubular pile, safe to use, economical rationality.

The utility model is achieved in that a kind of deep foundation pit support barricade, comprise the cement-soil water-stop curtain that is arranged on the described deep foundation ditch outside, a plurality of prestressed concrete prefabricated tubular piles are sunk in the compartment of terrain in the described cement-soil water-stop curtain, and the top of described cement-soil water-stop curtain also is provided with steel concrete Guan Liang, and the upper end that makes each prestressed concrete prefabricated tubular pile embeds in this steel concrete hat beam, to form integral body, steel concrete Guan Liang also can be used as the strong point that hole inner support or soil bolt are set as required simultaneously.

Better, described prestressed concrete prefabricated tubular pile external diameter is 500mm, when wall thickness is 125mm, the center distance of adjacent two prestressed concrete prefabricated tubular piles is 1m.

Better, the bottom of described a plurality of prestressed concrete prefabricated tubular piles is concordant with described cement-soil water-stop curtain bottom, perhaps stretches into below the described cement-soil water-stop curtain bottom, perhaps is higher than described cement-soil water-stop curtain bottom.

The utility model has the advantage of: deep foundation pit support barricade of the present utility model comprises the cement-soil water-stop curtain that is arranged on the described deep foundation ditch outside, a plurality of prestressed concrete prefabricated tubular piles are sunk in the compartment of terrain in the cement-soil water-stop curtain, be provided with steel concrete Guan Liang at the top of cement-soil water-stop curtain again, and the upper end that makes each prestressed concrete prefabricated tubular pile embeds in this steel concrete hat beam, steel concrete Guan Liang, the prestressed concrete prefabricated tubular pile is combined closely with the cement-soil water-stop curtain, form whole, make whole barricade stressed reliable, stagnant water effect is good, easy construction, cost is low, behind excavation of foundation pit, water-stop curtain is directly exposed to the surface, if there is breakthrough more easily to find and repair.

[description of drawings]

In conjunction with the embodiments the utility model is further described with reference to the accompanying drawings.

Fig. 1 is the utility model deep foundation pit support barricade elevational schematic view.

Fig. 2 is the utility model deep foundation pit support barricade floor map.

[specific embodiment]

See also illustrated in figures 1 and 2, deep foundation pit support barricade 10 of the present utility model, comprise the cement-soil water-stop curtain 1 that is arranged on described deep foundation ditch 4 outsides, a plurality of prestressed concrete prefabricated tubular piles 2 are sunk in the compartment of terrain in the described cement-soil water-stop curtain 1, and the top of described cement-soil water-stop curtain 1 also is provided with steel concrete hat beam 3, and the upper end 21 that makes each prestressed concrete prefabricated tubular pile 2 embeds in this steel concrete hat beam 3, to form integral body, steel concrete hat beam 3 also can be used as the strong point that hole inner support or soil bolt are set as required simultaneously.

The parameter of described prestressed concrete prefabricated tubular pile can adjust as the case may be, as described in prestressed concrete prefabricated tubular pile external diameter be 500mm, when wall thickness is 125mm, the center distance of adjacent two prestressed concrete prefabricated tubular piles is that 1m is good.

Can select according to the geological conditions situation length of prestressed concrete prefabricated tubular pile 2, when higher to the force request of deep foundation pit support barricade 10, the bottom of prestressed concrete prefabricated tubular pile 2 can be stretched into below described cement-soil water-stop curtain 1 bottom, when not high to force request, can the bottom of described a plurality of prestressed concrete prefabricated tubular piles 2 is concordant with described cement-soil water-stop curtain 1 bottom, perhaps be higher than described cement-soil water-stop curtain bottom 1.

The lower end 22 of described a plurality of prestressed concrete prefabricated tubular piles 2 is also stretched into below described cement-soil water-stop curtain 1 bottom.

Implementation step of the present utility model is as follows: the cement-soil water-stop curtain 1 of constructing first in deep foundation ditch 4 outsides, 1 construction of cement-soil water-stop curtain is behind certain-length, before the cement-soil initial set, and then utilize pile sinking machinery that the prestressed concrete prefabricated tubular pile 2 of certain specification is sunk in the cement-soil water-stop curtain 1 according to a determining deviation, after cement-soil solidifies with the prestressed concrete prefabricated tubular pile 2 whole deep foundation pit support barricade of formation of combining closely; After the cement-soil water-stop curtain 1 of barricade reaches some strength, at barricade top construction reinforced bar concrete hat beam 3, each prestressed concrete prefabricated tubular pile 2 upper end embeds in the steel concrete hat beam 3, and steel concrete hat beam 3 is linked to be integral body with each prestressed concrete pipe pile 2.

In sum, deep foundation pit support barricade of the present utility model comprises the cement-soil water-stop curtain that is arranged on the described deep foundation ditch outside, a plurality of prestressed concrete prefabricated tubular piles are sunk in the compartment of terrain in the cement-soil water-stop curtain, be provided with steel concrete Guan Liang at the top of cement-soil water-stop curtain again, and the upper end that makes each prestressed concrete prefabricated tubular pile embeds in this steel concrete hat beam, steel concrete Guan Liang, the prestressed concrete prefabricated tubular pile is combined closely with the cement-soil water-stop curtain, form whole, make whole barricade stressed reliable, stagnant water effect is good, easy construction, cost is low, behind excavation of foundation pit, water-stop curtain is directly exposed to the surface, if there is breakthrough more easily to find and repair.

Although more than described the specific embodiment of the present utility model; but being familiar with those skilled in the art is to be understood that; our described specific embodiment is illustrative; rather than for the restriction to scope of the present utility model; those of ordinary skill in the art are in modification and the variation of the equivalence of doing according to spirit of the present utility model, all should be encompassed in the scope that claim of the present utility model protects.

Claims (3)

1. deep foundation pit support barricade, it is characterized in that: comprise the cement-soil water-stop curtain that is arranged on the described deep foundation ditch outside, a plurality of prestressed concrete prefabricated tubular piles are sunk in the compartment of terrain in the described cement-soil water-stop curtain, and the top of described cement-soil water-stop curtain also is provided with steel concrete Guan Liang, and the upper end that makes each prestressed concrete prefabricated tubular pile embeds in this steel concrete hat beam, to form integral body.
2. deep foundation pit support barricade as claimed in claim 1 is characterized in that: described prestressed concrete prefabricated tubular pile external diameter is 500mm, when wall thickness is 125mm, and the center distance of adjacent two prestressed concrete prefabricated tubular piles is 1m.
3. deep foundation pit support barricade as claimed in claim 1, it is characterized in that: the bottom of described a plurality of prestressed concrete prefabricated tubular piles is concordant with described cement-soil water-stop curtain bottom, perhaps stretch into below the described cement-soil water-stop curtain bottom, perhaps be higher than described cement-soil water-stop curtain bottom.
CN 201220236385 2012-05-23 2012-05-23 Deep foundation pit retaining and protecting retaining wall CN202689031U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220236385 CN202689031U (en) 2012-05-23 2012-05-23 Deep foundation pit retaining and protecting retaining wall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220236385 CN202689031U (en) 2012-05-23 2012-05-23 Deep foundation pit retaining and protecting retaining wall

Publications (1)

Publication Number Publication Date
CN202689031U true CN202689031U (en) 2013-01-23

Family

ID=47544671

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220236385 CN202689031U (en) 2012-05-23 2012-05-23 Deep foundation pit retaining and protecting retaining wall

Country Status (1)

Country Link
CN (1) CN202689031U (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103321210A (en) * 2013-06-08 2013-09-25 郭红标 Prestressed anchor cable sheet-pile wall
CN103343532A (en) * 2013-07-05 2013-10-09 郭红标 Pre-stressed anchor cable pile-slab wall
CN103866779A (en) * 2014-02-26 2014-06-18 镇海建设集团有限公司 Construction method of water stopping surrounding and protecting structure of soft soil foundation building foundation pit
CN104695492A (en) * 2015-02-13 2015-06-10 上海建工集团股份有限公司 Method for handling dangers of cement-earth gravity-type enclosure wall in soft soil area
CN105297740A (en) * 2015-09-30 2016-02-03 常州大学怀德学院 FRP plate strip type foundation pit support structure and construction method
CN105714846A (en) * 2014-12-02 2016-06-29 中国石油天然气股份有限公司 Gravity retaining wall and construction method thereof
CN108360526A (en) * 2018-02-27 2018-08-03 北京城建华夏基础建设工程有限公司 A kind of construction method of water level for local deep foundation pit

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103321210A (en) * 2013-06-08 2013-09-25 郭红标 Prestressed anchor cable sheet-pile wall
CN103343532A (en) * 2013-07-05 2013-10-09 郭红标 Pre-stressed anchor cable pile-slab wall
CN103343532B (en) * 2013-07-05 2015-05-13 郭红标 Pre-stressed anchor cable pile-slab wall
CN103866779A (en) * 2014-02-26 2014-06-18 镇海建设集团有限公司 Construction method of water stopping surrounding and protecting structure of soft soil foundation building foundation pit
CN103866779B (en) * 2014-02-26 2016-01-13 黄吉永 A kind of construction method of sealing space enclosing structure of soft foundation building foundation pit
CN105714846B (en) * 2014-12-02 2018-09-04 中国石油天然气股份有限公司 A kind of gravity retaining wall and its construction method
CN105714846A (en) * 2014-12-02 2016-06-29 中国石油天然气股份有限公司 Gravity retaining wall and construction method thereof
CN104695492A (en) * 2015-02-13 2015-06-10 上海建工集团股份有限公司 Method for handling dangers of cement-earth gravity-type enclosure wall in soft soil area
CN105297740A (en) * 2015-09-30 2016-02-03 常州大学怀德学院 FRP plate strip type foundation pit support structure and construction method
CN105297740B (en) * 2015-09-30 2017-03-29 常州大学怀德学院 A kind of FRP plate belt foundation pit enclosure structure carries out the construction method of pattern foundation pit supporting structure
CN108360526A (en) * 2018-02-27 2018-08-03 北京城建华夏基础建设工程有限公司 A kind of construction method of water level for local deep foundation pit

Similar Documents

Publication Publication Date Title
CN102635120B (en) Circular deep foundation ditch is without Construction of Supporting structure and construction method
CN103572755B (en) Prestressed concrete prefabricated pile
CN105089061B (en) Ultra-deep foundation pit supporting method
CN1837511B (en) Double-rowed cofferdam and method for manufacturing the same
CN104675403A (en) Underground space construction method and supporting structure
CN103758134B (en) A kind of construction method combining Double-row Piles Support system
CN103306289B (en) Foundation pit piled anchor dado concrete anchor cable top beam structure and construction method thereof
CN203308470U (en) Cover arch structure suitable for large-section unsymmetrical loading tunnel portal section
CN102704957A (en) Shed-frame method for shallowly burying large-sized underground structure construction
CN105840207B (en) Construction method for comprehensive tunnel entering structure of large-span tunnel penetrating shallow-buried bias-pressure loose accumulation body
CN103774675B (en) Combined double-row-pile combined vertical prestress anchor rod supporting system and construction method thereof
CN103321246B (en) Underground diaphragm wall based foundation pit construction method
CN105464134B (en) Multi-layer underground space is along inverse combining construction method and supporting construction under existing facility
CN104762955B (en) A kind of Belled Pile construction method based on freezing process
CN102828520A (en) Ring-shaped inner supporting structure used in deep peat soil deep foundation pit
CN103669398B (en) A kind of monoblock type cutting retaining wall
CN203603105U (en) Wall plate type ecological retaining wall bank protection structure
CN102418347B (en) Drainage construction method for blind drain and sump wells in deep foundation pit
CN104818711A (en) Anti-liquefaction three-dimensional drainage rigid pile and construction method thereof
KR100618597B1 (en) Cast in place concrete pile using vibro magnetic shovel hammer, and the construction method of this
CN108442382B (en) In-situ protection and enclosure soil-retaining structure for pressure pipeline crossing deep foundation pit and construction method
CN105735354B (en) A kind of city underground engineering lid digs full-reverse construction method
CN104676110A (en) On-site overhanging protection method of high-voltage cable bailey truss under condition of excavation of foundation pit
CN102286984A (en) Water-stop curtain and construction method thereof
CN104452809A (en) Ultra-shallow buried tunnel cover-excavation construction method

Legal Events

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

Granted publication date: 20130123

Termination date: 20190523

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