CN202298641U - Tower foundation structure of high pile cap - Google Patents

Tower foundation structure of high pile cap Download PDF

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Publication number
CN202298641U
CN202298641U CN2011204027753U CN201120402775U CN202298641U CN 202298641 U CN202298641 U CN 202298641U CN 2011204027753 U CN2011204027753 U CN 2011204027753U CN 201120402775 U CN201120402775 U CN 201120402775U CN 202298641 U CN202298641 U CN 202298641U
Authority
CN
China
Prior art keywords
pile
cast
foundation ditch
anchor ear
place concrete
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
CN2011204027753U
Other languages
Chinese (zh)
Inventor
张耀龙
李克江
宋巍
刘建平
陈赛菊
龚小东
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.)
Zhongtian Construction Group Co Ltd Tianjin Branch
Original Assignee
Zhongtian Construction Group Co Ltd Tianjin Branch
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 Zhongtian Construction Group Co Ltd Tianjin Branch filed Critical Zhongtian Construction Group Co Ltd Tianjin Branch
Priority to CN2011204027753U priority Critical patent/CN202298641U/en
Application granted granted Critical
Publication of CN202298641U publication Critical patent/CN202298641U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a column foundation structure of a high pile cap, which comprises four concrete pouring piles arranged in a foundation pit. The ratio between the length of an embedded section of each concrete pouring pile located below a foundation pit bottom surface and the length of an exposed section located in the foundation pit is larger than or equal to 1.5. A reinforced concrete bearing platform is poured at the tops of the four concrete pouring piles, and a plurality of horizontal reinforced concrete hold hoop structures which are arranged at intervals and enable the exposed sections to be connected together are poured on the exposed sections of the four concrete pouring piles positioned in the foundation pit. The column foundation structure of the high pile cap is stable and firm in structure, high in safety, simple and convenient to construct compared with other high pile caps and low in cost.

Description

A kind of highrise pile cap tower-base structure
Technical field
The utility model relates to a kind of job practices and structure of column foot, particularly relates to a kind of highrise pile cap tower-base structure.
Background technology
At present; The common a kind of mode of large-scale construction method of deep foundation ditch is: the construction that the substrate absolute altitude carries out tower crane is later on again dug in the earthwork; Tower crane is at foundation pit supporting construction and support construction period at all with regard to having brought into play not effect temporarily, can't resolve the vertical transport problem, has strengthened difficulty of construction; Prolong the duration, increased the danger of foundation pit construction.Afterwards a mode is, before soil excavation, and four cast-in-place concrete piles of constructing earlier; Stake top mark height is located at below the tower crane base plate, treat that tower crane installs after, carry out soil excavation again; The castinplace pile that supports tower crane forms destabilizing factor, for addressing this problem along with the intensification of the soil excavation degree of depth will successively be exposed; Need between four cast-in-place concrete piles, to set up bridging, also need the vertical displacement of detection at any time pile body with the steel sleeve welding.Though this mode has solved the vertical transport problem in foundation pit construction stage, reduced the stability of tower crane, increase the unsafe hidden danger of construction, and strengthened the cost that tower crane is reinforced.The place is narrow and small at the scene, the foundation ditch floor space is comparatively common than the deep foundation pit construction that big and body of the tower are arranged in the foundation ditch centre for a back mode, helps improving to greatest extent the construction effect.
The utility model content
The utility model for solve the technical problem that exists in the known technology provide a kind of Stability Analysis of Structures, firmly, safety is higher and easy construction, lower-cost highrise pile cap tower-base structure.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is: a kind of highrise pile cap tower-base structure; Comprise four cast-in-place concrete piles that are arranged in the foundation ditch, every said cast-in-place concrete pile is positioned at fixed section length below the foundation ditch bottom surface is in foundation ditch with it revealed section length than more than or equal to 1.5; The steel concrete cushion cap has been built in four said cast-in-place concrete pile stake top casting; Four said cast-in-place concrete piles are in builds the horizontal reinforcement concrete anchor ear structure that several are provided with at interval and they are linked together on the revealed section in the foundation ditch.
Said steel concrete anchor ear structure is connected through the bar planting structure with said bored pile.
Said steel concrete anchor ear structure is girder structure or plank frame.
Advantage and the good effect that the utlity model has are: the length through adopting cast-in-place concrete pile to be mounted in below the foundation ditch bottom surface compares structure more than or equal to 1.5 with the length that is exposed in the foundation ditch outward; And the horizontal reinforcement concrete anchor ear structure that formation links together them between four cast-in-place concrete piles; Make the tower-base structure of the utility model stable, firmly, safety is higher; And with respect to other highrise pile cap easy constructions, cost is lower.Also have the utility model applicability stronger, do not receive site condition, geological hydrology condition restriction.The utility model has solved in the foundation pit construction process the omnidistance tower crane that uses preferably and has carried out vertical transport; The difficult problem of tower crane poor stability; Engineering piles do not construct or pit earthwork excavation before just can make and shift to an earlier date mounted tower crane and effectively turn round, during foundation pit construction with tower crane as vertical transport equipment, convenient and quick construction, effectively shortened the groove time of drying in the air; Improved the operating efficiency of foundation pit construction; Can shorten the foundation pit construction duration in a large number, reduce to take place the coefficient of security incident, for the smooth construction of superstructure provides advantage because of claim for eot.
Description of drawings
Fig. 1 is the elevation of the utility model tower-base structure;
Fig. 2 is the plan view of horizontal reinforcement concrete anchor ear structure in the utility model tower-base structure.
Among the figure: 1, revealed section, 2, fixed section, 3, cushion cap, 4,7, the anchor ear structure, 5, tower crane standard knot or stone bolt, 6, bar planting.
The specific embodiment
For further understanding summary of the invention, characteristics and the effect of the utility model, the following examples of giving an example now, and conjunction with figs. specifies as follows:
See also Fig. 1~Fig. 2; A kind of highrise pile cap tower-base structure; Comprise four cast-in-place concrete piles that are arranged in the foundation ditch, every said cast-in-place concrete pile is positioned at fixed section 2 length below the foundation ditch bottom surface are in foundation ditch with it revealed section 1 length than more than or equal to 1.5; Steel concrete cushion cap 3 has been built in four said cast-in-place concrete pile stake top casting; Four said cast-in-place concrete piles are in builds the horizontal reinforcement concrete anchor ear structure that several are provided with at interval and they are linked together on the revealed section 1 in the foundation ditch.
Said steel concrete anchor ear structure is connected through bar planting 6 structures with said bored pile.Can make connection more reliable.
Said steel concrete anchor ear structure is girder structure or a plank frame as shown in Figure 2.Plank frame is secure more, but cost is high; Girder structure, on the cost, comparatively economical.
The job practices of above-mentioned column foot may further comprise the steps:
One) before the pit earthwork excavation; Elder generation is four cast-in-place concrete piles of construction in foundation ditch; A stake top mark high position is in ground surface, and a stake end absolute altitude is positioned at the bottom of the foundation ditch below the absolute altitude, and cast-in-place concrete pile is squeezed into length below the foundation ditch bottom surface and is in length in the foundation ditch with it than more than or equal to 1.5;
Two) build steel concrete cushion cap 3 four cast-in-place concrete pile stake top casting, pre-buried tower crane standard knot or stone bolt 5 in cushion cap 3, and the installation of completion tower crane;
Three) the excavation pit earthwork in the pit earthwork digging process, is whenever down dug 2~3m, builds a horizontal reinforcement concrete anchor ear structure that they are linked together around four bored piles.All horizontal reinforcement concrete anchor ear structures on the revealed section 1 can be accomplished after the cushion cap completion from top to bottom successively, also can before bearing platform construction, excavate 2~3m pit earthwork earlier downwards; And after building a horizontal reinforcement concrete anchor ear structure 7 that they are linked together around four bored piles; The cushion cap 3 of constructing again, and in cushion cap 3 pre-buried tower crane standard knot or stone bolt 5, accomplish the installation of tower crane; And then the excavation pit earthwork; In the pit earthwork digging process, whenever down dig 2~3m, build a horizontal reinforcement concrete anchor ear structure 4 that they are linked together around four bored piles.
Although combine accompanying drawing that the preferred embodiment of the utility model is described above; But the utility model is not limited to the above-mentioned specific embodiment, and the above-mentioned specific embodiment only is schematically, is not restrictive; Those of ordinary skill in the art is under the enlightenment of the utility model; Not breaking away under the scope situation that the utility model aim and claim protect, can also make a lot of forms, these all belong within the protection domain of the utility model.

Claims (3)

1. a highrise pile cap tower-base structure is characterized in that, comprises four cast-in-place concrete piles that are arranged in the foundation ditch, and every said cast-in-place concrete pile is positioned at fixed section length below the foundation ditch bottom surface is in foundation ditch with it revealed section length than more than or equal to 1.5; The steel concrete cushion cap has been built in four said cast-in-place concrete pile stake top casting; Four said cast-in-place concrete piles are in builds the horizontal reinforcement concrete anchor ear structure that several are provided with at interval and they are linked together on the revealed section in the foundation ditch.
2. highrise pile cap tower-base structure according to claim 1 is characterized in that, said steel concrete anchor ear structure is connected through the bar planting structure with said bored pile.
3. highrise pile cap tower-base structure according to claim 1 is characterized in that, said steel concrete anchor ear structure is girder structure or plank frame.
CN2011204027753U 2011-10-20 2011-10-20 Tower foundation structure of high pile cap Expired - Fee Related CN202298641U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011204027753U CN202298641U (en) 2011-10-20 2011-10-20 Tower foundation structure of high pile cap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011204027753U CN202298641U (en) 2011-10-20 2011-10-20 Tower foundation structure of high pile cap

Publications (1)

Publication Number Publication Date
CN202298641U true CN202298641U (en) 2012-07-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011204027753U Expired - Fee Related CN202298641U (en) 2011-10-20 2011-10-20 Tower foundation structure of high pile cap

Country Status (1)

Country Link
CN (1) CN202298641U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102433889A (en) * 2011-10-20 2012-05-02 中天建设集团有限公司天津分公司 Method for constructing high-rise pile cap tower footing and high-rise pile cap tower footing structure
CN103215965A (en) * 2013-04-10 2013-07-24 中国建筑第八工程局有限公司 Laminate type high-rise platform pile tower crane foundation and construction method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102433889A (en) * 2011-10-20 2012-05-02 中天建设集团有限公司天津分公司 Method for constructing high-rise pile cap tower footing and high-rise pile cap tower footing structure
CN103215965A (en) * 2013-04-10 2013-07-24 中国建筑第八工程局有限公司 Laminate type high-rise platform pile tower crane foundation and construction method

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120704

Termination date: 20131020