CN206495218U - Foundation pit supporting construction - Google Patents

Foundation pit supporting construction Download PDF

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Publication number
CN206495218U
CN206495218U CN201720148256.6U CN201720148256U CN206495218U CN 206495218 U CN206495218 U CN 206495218U CN 201720148256 U CN201720148256 U CN 201720148256U CN 206495218 U CN206495218 U CN 206495218U
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China
Prior art keywords
pile
foundation pit
supporting construction
fixture block
pit supporting
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CN201720148256.6U
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Chinese (zh)
Inventor
周少华
黄军锋
肖东亮
高石磊
尤孟星
郑喻超
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Beijing East Earth Rock Engineering Co Ltd
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Beijing East Earth Rock Engineering Co Ltd
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Priority to CN201720148256.6U priority Critical patent/CN206495218U/en
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Abstract

The utility model discloses a kind of foundation pit supporting construction, including mixing pile, the prefabricated tubular pile includes some unit pile tubes being mutually socketed, and one end of unit pile tube is fixed with sleeve, and the other end of the unit pile tube is sheathed in the sleeve;By setting sleeve, the intensity of unit pile tube junction can be improved, makes preferably to connect between adjacent unit pile tube up and down, reduces the possibility of unit pile tube junction destruction, make prefabricated tubular pile structure more firm, reach more preferable supporting effect.

Description

Foundation pit supporting construction
Technical field
The utility model is related to the support technology field in architectural engineering, more specifically, it relates to a kind of pattern foundation pit supporting structure Structure.
Background technology
Base pit engineering be protect underground space open-cut be smoothed out with surrounding enviroment it is without prejudice and take it is interim Supporting and soil stabilization engineering.With the development of engineering construction, foundation ditch is increasing, increasingly deeper, during foundation construction, Ensure to reduce pattern foundation pit supporting structure cost on the premise of foundation ditch periphery buildings or structures and deep pit monitor as far as possible, shorten the duration, as work The unremitting pursuit of journey technical staff.
Publication No. CN204608798U Chinese patent discloses a kind of water-seal pile/within the walls and inserts H profile steel and prefabricated tubular pile The foundation pit supporting construction of composition, including continuous cement mixing method or seepproof screen for foundation ditch sealing, and for foundation ditch earth-retaining Prefabricated tubular pile, between the pile tube of two minor diameters of water-seal pile interpolation increase a H profile steel, H profile steel be used for increase prefabricated pipe Stake lateral rigidity and waterproof between piles stake shearing strength.
Pile tube mainly by being poured into a mould in factory, and conserve after the completion of, then transport to engineering ground carry out pile sinking operation.But due to The need for the prefabricated tubular pile used in the reason for production, transport and construction, above-mentioned utility model is unable to complete fulfillment designing pile length, Pile extension must be carried out to prefabricated tubular pile unit at pile sinking scene, more piece prefabricated tubular pile unit spliced is long into the stake of specific Site Design Prefabricated tubular pile.Currently, the joint geometry of most prefabricated tubular piles is to be welded connecting method using end plate.Therefore, welding connects Head position often turns into the weakness of prefabricated tubular pile pile body, is particularly easily destroyed at horizontal loads lower contact.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of tube pile structure stable foundation ditch Supporting construction.
Above-mentioned technical purpose of the present utility model technical scheme is that:A kind of pattern foundation pit supporting structure knot Structure, including mixing pile, the prefabricated tubular pile include some unit pile tubes being mutually socketed, and one end of unit pile tube is fixed with set Cylinder, the other end of the unit pile tube is sheathed in the sleeve.
By using above-mentioned technical proposal, sleeve can improve the intensity of unit pile tube junction, and by leading in stake holes Enter concrete can by between unit pile body, prefabricated tubular pile and the external world be adhesively fixed, make junction be less susceptible to be destroyed;Sleeve can be carried The sealing of high pile tube junction, reduces water and enters from the junction of unit pile tube in pile tube.
The utility model is further arranged to:One end of the unit pile tube is fixed with the first fixture block, the unit pipes The other end of stake is provided with neck, and first fixture block is embedded in the neck.
By using above-mentioned technical proposal, the first fixture block is embedded in neck, it is possible to increase the contact surface of unit pile tube junction Product, makes the connection between unit pile tube more stable;And can avoid deflecting relatively because of unbalance stress between pile tube.
The utility model is further arranged to:The neck is set in T-shape.
, can be spacing to the first fixture block by using above-mentioned technical proposal, the first fixture block free degree is limited, the is preferably avoided Relative skew between one fixture block and unit pile tube.
The utility model is further arranged to:First fixture block is fixedly installed on the sleeve.
By using above-mentioned technical proposal, now the first fixture block is located on the outside of unit pile tube, is easy to observation, can preferably by Neck is aligned with the first fixture block.
The utility model is further arranged to:Between first fixture block and sleeve provided with two ends respectively with the first fixture block and The connector that sleeve is fixedly connected.
By using above-mentioned technical proposal, it is possible to increase the contact area of the first fixture block and sleeve, make the first fixture block more stable Be fixed on sleeve.
The utility model is further arranged to:Also include the mixing pile for foundation ditch sealing, the mixing pile is arranged at institute State between prefabricated tubular pile.
By using above-mentioned technical proposal, host of the mixing pile by the use of cement as curing agent, using mixing pile machine by water Mud sprays into the soil body and is simultaneously sufficiently stirred for, and cement is occurred a series of physical chemical reaction with soil, makes that weak soil hardens and to improve ground strong Degree.
The utility model is further arranged to:H profile steel is provided with the mixing pile.
By using above-mentioned technical proposal, H profile steel can be used for increase prefabricated tubular pile lateral rigidity and mixing pile shearing strength, Make stirring pilework more stable.
The utility model is further arranged to:The two ends of the H profile steel are provided with the second fixture block, and second fixture block is embedded in institute The two ends in neck are stated to be embedded in the neck.
By using above-mentioned technical proposal, the connection between adjacent pile tube can be made more stable, foundation ditch can be reached preferably Supporting effect.
The utility model is further arranged to:Perpendicularity in the prefabricated tubular pile insertion soil layer is inserted with the mixing pile Perpendicularity in soil layer is identical.
By using above-mentioned technical proposal, make to be parallel to each other between prefabricated tubular pile and mixing pile, it is possible to increase mixing pile with it is pre- The contact area of tubulation stake, makes preferably to connect between prefabricated tubular pile and mixing pile, reaches more preferable supporting effect.
In summary, the utility model can make preferably to connect between adjacent unit pile tube up and down, subtract by setting sleeve The possibility of few unit pile tube junction destruction, makes prefabricated tubular pile structure more firm, reaches more preferable supporting effect.
Brief description of the drawings
Fig. 1 is the structural representation of foundation pit supporting construction;
Fig. 2 is the structural representation of prefabricated tubular pile;
Fig. 3 is the structural representation of unit pile tube.
In figure:1st, prefabricated tubular pile;11st, unit pile tube;12nd, sleeve;13rd, the first fixture block;14th, neck;15th, connector;16、 Deck;2nd, mixing pile;3rd, H profile steel;31st, the second fixture block;4th, hole of post.
Embodiment
With reference to the accompanying drawings and examples, the utility model is described in detail.
As shown in figure 1, a kind of foundation pit supporting construction, including for the prefabricated tubular pile 1 for foundation ditch earth-retaining and for for base The mixing pile 2 of sealing is cheated, mixing pile 2 is arranged at intervals between prefabricated tubular pile 1 successively, and phase between prefabricated tubular pile 1 and mixing pile 2 Mutually it be arranged in parallel(It is each perpendicular to foundation ditch).
As shown in Fig. 2 prefabricated tubular pile 1 includes some unit pile tubes 11 being mutually socketed, the lower end of unit pile tube 11 is fixed , can be by being welded and fixed between sleeve 12 and unit pile tube 11 provided with sleeve 12, the lower end of sleeve 12 is fixed with the first fixture block 13, the cross section of the first fixture block 13 is set in T-shape, to make the connection between the first fixture block 13 and sleeve 12 closer, and first The connector 15 being fixedly connected respectively with the first fixture block 13 and sleeve 12 provided with two sides between fixture block 13 and sleeve 12;Unit pipes The upper end of stake 11 is provided with the neck 14 set in T-shape(Formed by two symmetrically arranged decks 16, the cross section of deck 16 is in " L " type sets and is fixed on unit pile tube 11), the first fixture block 13 of adjacent cells pile tube 11 is embedded in neck 14, in this reality Apply in example, the first fixture block 13 and neck 14 are symmetricly set in the both sides of prefabricated tubular pile 1.
As shown in figure 1, being provided with H profile steel 3 in mixing pile 2, the two ends of H profile steel 3 are provided with the second fixture block set in T-shape 31, the second fixture block 31 is embedded in neck 14.
Work progress is as follows:
1st, line setting, according to design drawing, places axis, the central point of prefabricated tubular pile 1 is measured with steel ruler;
2nd, hole of post 4 is dug centered on central point;
3rd, unit pile tube 11 is put into hole of post 4, and the first fixture block 13 is embedded in neck 14;
4th, the casting concrete in hole of post 4;
5th, the central point of mixing pile 2 is measured;
6th, cement jet is entered into the soil body using mixing pile machine and be sufficiently stirred for, form mixing pile 2;
7th, by the neck 14 of the embedded unit pile tube 11 of H profile steel 3.
Directly the first fixture block 13 can be inserted in neck 14 before construction, and by being worn in the junction of unit pile tube 11 Bolt, welding etc. mode fixed cell pile tube 11.
Above-mentioned foundation pit supporting construction can be applied not only to foundation ditch and can also be applied to engineering pile.
Described above is only preferred embodiment of the present utility model, and protection domain of the present utility model is not limited merely to Above-described embodiment, all technical schemes belonged under the utility model thinking belong to protection domain of the present utility model.It should refer to Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and Retouching, these improvements and modifications also should be regarded as protection domain of the present utility model.

Claims (9)

1. a kind of foundation pit supporting construction, it is characterised in that:Including prefabricated tubular pile(1), the prefabricated tubular pile(1)Including some mutual The unit pile tube of socket(11), unit pile tube(11)One end be fixed with sleeve(12), the unit pile tube(11)It is another End is sheathed on the sleeve(12)In.
2. foundation pit supporting construction according to claim 1, it is characterised in that:The unit pile tube(11)One end fix set There is the first fixture block(13), the unit pile tube(11)The other end be provided with neck(14), first fixture block(13)It is embedded in institute State neck(14)In.
3. foundation pit supporting construction according to claim 2, it is characterised in that:The neck(14)Set in T-shape.
4. foundation pit supporting construction according to claim 2, it is characterised in that:First fixture block(13)It is fixedly installed on institute State sleeve(12)On.
5. foundation pit supporting construction according to claim 4, it is characterised in that:First fixture block(13)With the sleeve (12)Between provided with two ends respectively with the first fixture block(13)And sleeve(12)The connector being fixedly connected(15).
6. foundation pit supporting construction according to claim 2, it is characterised in that:Also include the mixing pile for foundation ditch sealing (2), the mixing pile(2)It is arranged at the prefabricated tubular pile(1)Between.
7. foundation pit supporting construction according to claim 6, it is characterised in that:The mixing pile(2)It is interior to be provided with H profile steel(3).
8. foundation pit supporting construction according to claim 7, it is characterised in that:The H profile steel(3)Two ends provided with second card Block(31), second fixture block(31)It is embedded in the neck(14)In.
9. foundation pit supporting construction according to claim 6, it is characterised in that:The prefabricated tubular pile(1)Insert in soil layer Perpendicularity and the mixing pile(2)The perpendicularity inserted in soil layer is identical.
CN201720148256.6U 2017-02-18 2017-02-18 Foundation pit supporting construction Active CN206495218U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720148256.6U CN206495218U (en) 2017-02-18 2017-02-18 Foundation pit supporting construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720148256.6U CN206495218U (en) 2017-02-18 2017-02-18 Foundation pit supporting construction

Publications (1)

Publication Number Publication Date
CN206495218U true CN206495218U (en) 2017-09-15

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Application Number Title Priority Date Filing Date
CN201720148256.6U Active CN206495218U (en) 2017-02-18 2017-02-18 Foundation pit supporting construction

Country Status (1)

Country Link
CN (1) CN206495218U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113668555A (en) * 2021-08-05 2021-11-19 深圳市盛业建筑科技(集团)有限公司 Deep foundation pit supporting construction method for large-pipe-diameter prestressed row piles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113668555A (en) * 2021-08-05 2021-11-19 深圳市盛业建筑科技(集团)有限公司 Deep foundation pit supporting construction method for large-pipe-diameter prestressed row piles

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