CN204370413U - A kind of steel pile casting - Google Patents

A kind of steel pile casting Download PDF

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Publication number
CN204370413U
CN204370413U CN201420703494.5U CN201420703494U CN204370413U CN 204370413 U CN204370413 U CN 204370413U CN 201420703494 U CN201420703494 U CN 201420703494U CN 204370413 U CN204370413 U CN 204370413U
Authority
CN
China
Prior art keywords
grouting pipe
cylindrical shell
steel pile
side opening
pile casting
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
CN201420703494.5U
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Chinese (zh)
Inventor
张鼎波
张锴峰
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.)
SHANGHAI ZHIDAO BUILDING TECHNOLOGY Co Ltd
Original Assignee
SHANGHAI ZHIDAO BUILDING TECHNOLOGY 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 SHANGHAI ZHIDAO BUILDING TECHNOLOGY Co Ltd filed Critical SHANGHAI ZHIDAO BUILDING TECHNOLOGY Co Ltd
Priority to CN201420703494.5U priority Critical patent/CN204370413U/en
Application granted granted Critical
Publication of CN204370413U publication Critical patent/CN204370413U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of steel pile casting, comprise cylindrical shell, the sidewall of cylindrical shell is equipped with at least two Grouting Pipe along its length and Grouting Pipe is arranged at equal intervals along cylindrical shell cross circular section circumferential direction; Grouting Pipe is away from the sidewall of cylindrical shell offering side opening and side opening arranges at equal intervals along Grouting Pipe length direction, and the bottom of Grouting Pipe offers a bottom outlet, is respectively arranged with the stifled and bottom seal of side seal in side opening and bottom outlet; The bearing capacity of pile foundation utilizing the utility model to produce is high, cost is low, the compact earth by optimum and the high-strength prefabricated pile tube through slip casting around pile, and provide the high-bearing capacity of stake, cost performance is high; The stake end and slip casting around pile ensure that pile body and carrier good combination, ensure that pile quality.

Description

A kind of steel pile casting
Technical field
The utility model relates to the pile foundation construction field in civil engineering, particularly a kind of steel pile casting.
Background technology
Steel pile casting plays an important role in expanded bore pile construction, but in prior art, conventional carrier pile equipment adds steel pile casting, excessive integration cause efficiency of construction low, be difficult to make profound high-bearing capacity stake, namely each boring need an equipment to carry out work, cannot realize continuous productive process, duration long.
Slip casting also claims grouting, utilize hydraulic pressure, air pressure or electrochemical method to be injected into a kind of construction technology in stratum or gap by Grouting Pipe by having the slurries of gelling or chemical solution, its essence is and make slurries permeate by noting in layer, spreading, filling, through certain hour after coagulation and sclerosis, thus reach the object such as strengthening stratum and impervious waterproof.
In existing expanded bore pile construction, grouting operation carries out separately after pile body completes, and use common steel pipe to stretch in boring and the gap of pile body to carry out, though it processes simple, cheap but this construction method is difficult to bottom and the surrounding that guarantee grout material can cover pile body completely, this not only can affect the quality of slip casting, but also there is great potential safety hazard;
Meanwhile, existing grouting operation efficiency is low; If Grouting Pipe is once come off with high-pressure slip-casting equipment and be pulled out in slip casting process, then this injected hole just cannot reuse, thus causes great waste.
Utility model content
Technical problem to be solved in the utility model is, overcomes the shortcoming of prior art, provides a kind of steel pile casting, the bearing capacity of pile foundation produced is high, cost is low, compact earth by optimum and the high-strength prefabricated pile tube through slip casting around pile, provide the high-bearing capacity of stake, cost performance is high; The stake end and slip casting around pile ensure that pile body and carrier good combination, ensure that pile quality.
In order to solve above technical problem, the utility model provides a kind of steel pile casting, comprises cylindrical shell, the sidewall of cylindrical shell is equipped with at least two Grouting Pipe along its length and Grouting Pipe is arranged at equal intervals along cylindrical shell cross circular section circumferential direction; Grouting Pipe is away from the sidewall of cylindrical shell offering side opening and side opening arranges at equal intervals along Grouting Pipe length direction, and the bottom of Grouting Pipe offers a bottom outlet, is respectively arranged with the stifled and bottom seal of side seal in side opening and bottom outlet.
Technique effect: utilize the steel pile casting designed by the utility model, the bearing capacity of pile foundation produced is high, cost is low, the compact earth by optimum and the high-strength prefabricated pile tube through slip casting around pile, and provide the high-bearing capacity of stake, cost performance is high; Have and design with the combination of steel pile casting and Grouting Pipe, ensure that pile body and carrier good combination with slip casting around pile at the bottom of stake, ensure that pile quality.
The technical scheme that the utility model limits further is:
Further, aforesaid steel pile casting, in the side opening in Grouting Pipe, press from top to bottom order, be positioned at side opening distance Grouting Pipe top 30-40cm topmost, be positioned at the side opening distance Grouting Pipe bottom 20-30cm of least significant end, the spacing at the center of adjacent two side openings is 50-80cm.
Aforesaid steel pile casting, the top of Grouting Pipe vertically exceeds cylindrical shell 2cm, and the bottom of Grouting Pipe vertically grows cylindrical shell 2-3cm.
Aforesaid steel pile casting, Grouting Pipe is laid on the sidewall of cylindrical shell by welding manner.
Aforesaid steel pile casting, side seal is stifled stretches out side opening 1cm in the horizontal direction, bottom seal vertically stretches out bottom outlet 2cm, side seal blocks up and is less than 1MPa Grouting Pipe bottom with the plugging strength of bottom seal and lateral surface is provided with close measure, under High Pressure, can shutoff be washed open, thus high-pressure slip-casting is carried out to the bottom of prefabricated tubular pile and stake side.
Aforesaid steel pile casting, the sidewall of cylindrical shell is equipped with along its length four Grouting Pipe and four Grouting Pipe are arranged at equal intervals along cylindrical shell cross circular section circumferential direction, and the interior diameter of Grouting Pipe is 25mm, and pipe thickness is 3mm; Four Grouting Pipe are arranged at equal intervals, ensure that the slip casting in slip casting process is even, ensure that pile body is more firm.
Accompanying drawing explanation
The structural representation of the steel pile casting of Fig. 1 designed by the utility model;
Fig. 2 is the apex structure schematic diagram of Grouting Pipe in steel pile casting of the present invention;
Fig. 3 is the bottom structural representation of Grouting Pipe in steel pile casting of the present invention;
The top view of the steel pile casting of Fig. 4 designed by the present invention;
1-Grouting Pipe, 2-cylindrical shell, 3-side opening, 4-side seal blocks up, 5-bottom outlet, 6-bottom seal.
Detailed description of the invention
Embodiment 1
As shown in Figure 1, a kind of steel pile casting that the present embodiment provides, comprises cylindrical shell to structure, the sidewall of cylindrical shell is equipped with at least two Grouting Pipe along its length and Grouting Pipe is arranged at equal intervals along cylindrical shell cross circular section circumferential direction; Grouting Pipe is away from the sidewall of cylindrical shell offering side opening and side opening arranges at equal intervals along Grouting Pipe length direction, and the bottom of Grouting Pipe offers a bottom outlet, is respectively arranged with the stifled and bottom seal of side seal in side opening and bottom outlet;
As shown in Figures 2 and 3, aforesaid steel pile casting, in the side opening in Grouting Pipe, press from top to bottom order, be positioned at side opening distance Grouting Pipe top 30-40cm topmost, be positioned at the side opening distance Grouting Pipe bottom 20-30cm of least significant end, the spacing at the center of adjacent two side openings is 50-80cm;
Aforesaid steel pile casting, the top of Grouting Pipe vertically exceeds cylindrical shell 2cm, and the bottom of Grouting Pipe vertically grows cylindrical shell 2-3cm.
The application process of the steel pile casting that the present embodiment provides is specially:
1., in pre-fixed pile, utilize drill hole of drilling machine to set depth and fill with obturator to pressure in boring;
2. steel pile casting is inserted in above-mentioned boring;
3. inserts is dropped into from steel pile casting open top, and utilize post hammer to ram steel pile casting inner filling material, make the closely knit reinforcing of the foundation soil body of steel pile casting bottom certain depth and scope, form optimum compact earth, drop into a certain amount of harsh concrete from the gradation of steel pile casting top again, after repeatedly forming enlarged footing after compacting, receive hammer;
4. prefabricated tubular pile is put into by steel pile casting open top, and touch prefabricated tubular pile make it enter in above-mentioned enlarged footing with post hammer;
5. grouting operation is carried out by the Grouting Pipe of steel pile casting side;
6., after slip casting completes, steel pile casting of upwards extricating oneself from a predicament and brace oneself up to action, namely completes the construction of expanded bore pile.
Embodiment 2
As shown in Figure 1, a kind of steel pile casting that the present embodiment provides, comprises cylindrical shell to structure, the sidewall of cylindrical shell is equipped with at least two Grouting Pipe along its length and Grouting Pipe is arranged at equal intervals along cylindrical shell cross circular section circumferential direction; Grouting Pipe is away from the sidewall of cylindrical shell offering side opening and side opening arranges at equal intervals along Grouting Pipe length direction, and the bottom of Grouting Pipe offers a bottom outlet, is respectively arranged with the stifled and bottom seal of side seal in side opening and bottom outlet;
As shown in Figures 2 and 3, aforesaid steel pile casting, in the side opening in Grouting Pipe, press from top to bottom order, be positioned at side opening distance Grouting Pipe top 30-40cm topmost, be positioned at the side opening distance Grouting Pipe bottom 20-30cm of least significant end, the spacing at the center of adjacent two side openings is 50-80cm;
Aforesaid steel pile casting, the top of Grouting Pipe vertically exceeds cylindrical shell 2cm, and the bottom of Grouting Pipe vertically grows cylindrical shell 2-3cm.Aforesaid steel pile casting, Grouting Pipe is laid on the sidewall of cylindrical shell by welding manner;
Aforesaid steel pile casting, side seal is stifled stretches out side opening 1cm in the horizontal direction, and bottom seal vertically stretches out bottom outlet 2cm, and side seal blocks up and is less than 1MPa with the plugging strength of bottom seal;
As shown in Figure 4, aforesaid steel pile casting, the sidewall of cylindrical shell is equipped with along its length four Grouting Pipe and four Grouting Pipe are arranged at equal intervals along cylindrical shell cross circular section circumferential direction, and the interior diameter of Grouting Pipe is 25mm, and pipe thickness is 3mm.
The application process of the steel pile casting that the present embodiment provides is specially:
1., in pre-fixed pile, utilize drill hole of drilling machine to set depth and fill with obturator to pressure in boring;
2. steel pile casting is inserted in above-mentioned boring;
3. inserts is dropped into from steel pile casting open top, and utilize post hammer to ram steel pile casting inner filling material, make the closely knit reinforcing of the foundation soil body of steel pile casting bottom certain depth and scope, form optimum compact earth, drop into a certain amount of harsh concrete from the gradation of steel pile casting top again, after repeatedly forming enlarged footing after compacting, receive hammer;
4. prefabricated tubular pile is put into by steel pile casting open top, and touch prefabricated tubular pile make it enter in above-mentioned enlarged footing with post hammer; With the hydraulically operated fixture clamping prefabricated tubular pile on vibrating hammer, move to steel pile casting open top position and put into steel pile casting, when hydraulically operated fixture drops to steel pile casting aperture position, unclamping prefabricated tubular pile makes bottom its free-falling to steel pile casting, the use of hydraulically operated fixture can greatly reduce the distance of prefabricated tubular pile freely falling body in boring, control the height at 1-2M, avoid pile body to be subject to excessive collision impact in free-falling process, thus affect the quality of pile body;
5. grouting operation is carried out by the Grouting Pipe of steel pile casting side;
6., after slip casting completes, steel pile casting of upwards extricating oneself from a predicament and brace oneself up to action, namely completes the construction of expanded bore pile; On conventional carrier pile equipment, excessively integration can cause the defect that efficiency is low, be difficult to make profound high-bearing capacity stake, and namely each boring need an equipment to carry out work, and it is short that the utility model then can realize continuous productive process, duration in practice of construction; Adopt vibrating hammer construction crawler crane being linked with hydraulically operated fixture, casing, vibrating hammer parts and pile body made or lay process decomposition out, accomplished the continuous productive process on technique process, effect improves greatly.
The application process of aforesaid steel pile casting, step 2. in, the inserted mode of steel pile casting is hammering insertion, static pressure inserts or adopt the vibrating hammer of band hydraulically operated fixture to shake insertions, and the steel pile casting upper end after insertion exceeds the upper edge 50-60cm that holes;
The application process of aforesaid steel pile casting, step 2. in, steel pile casting is before shaking and inserting, and first insert certain depth by bottom steel pile casting at the surperficial Vertical Vibrating of base soil, thus bottom steel pile casting, form soil plug, soil plug thickness is vertically 50-80cm;
The application process of aforesaid steel pile casting, step 5. in grout material be cement, flyash and water glass form mixture, control grouting pressure be less than 1MPa, the puddled soil initial setting time is 10-20min, and slurries injection rate is 16%-20%;
The application process of aforesaid steel pile casting, step 6. in, with on vibrating hammer hydraulically operated fixture clamping steel pile casting upper end, steel pile casting of extricating oneself from a predicament and brace oneself up to action.
Above embodiment is only and technological thought of the present utility model is described; protection domain of the present utility model can not be limited with this; every technological thought according to the utility model proposes, any change that technical scheme basis is done, all falls within the utility model protection domain.

Claims (6)

1. a steel pile casting, comprises cylindrical shell, it is characterized in that, the sidewall of described cylindrical shell is equipped with at least two Grouting Pipe along its length and described Grouting Pipe is arranged at equal intervals along cylindrical shell cross circular section circumferential direction; Described Grouting Pipe is away from the sidewall of cylindrical shell offering side opening and described side opening arranges at equal intervals along Grouting Pipe length direction, and the bottom of described Grouting Pipe offers a bottom outlet, is respectively arranged with the stifled and bottom seal of side seal in described side opening and bottom outlet.
2. steel pile casting according to claim 1, it is characterized in that, in side opening in described Grouting Pipe, press from top to bottom order, be positioned at side opening distance Grouting Pipe top 30-40cm topmost, be positioned at the side opening distance Grouting Pipe bottom 20-30cm of least significant end, the spacing at the center of adjacent two side openings is 50-80cm.
3. steel pile casting according to claim 1 and 2, is characterized in that, the top of described Grouting Pipe vertically exceeds cylindrical shell 2cm, and the bottom of described Grouting Pipe vertically grows cylindrical shell 2-3cm.
4. steel pile casting according to claim 3, is characterized in that, described Grouting Pipe is laid on the sidewall of cylindrical shell by welding manner.
5. steel pile casting according to claim 4, is characterized in that, described side seal is stifled stretches out side opening 1cm in the horizontal direction, and described bottom seal vertically stretches out bottom outlet 2cm, and described side seal blocks up and is less than 1MPa with the plugging strength of bottom seal.
6. steel pile casting according to claim 5, it is characterized in that, the sidewall of described cylindrical shell is equipped with along its length four Grouting Pipe and described four Grouting Pipe are arranged at equal intervals along cylindrical shell cross circular section circumferential direction, the interior diameter of described Grouting Pipe is 25mm, and pipe thickness is 3mm.
CN201420703494.5U 2014-11-20 2014-11-20 A kind of steel pile casting Expired - Fee Related CN204370413U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420703494.5U CN204370413U (en) 2014-11-20 2014-11-20 A kind of steel pile casting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420703494.5U CN204370413U (en) 2014-11-20 2014-11-20 A kind of steel pile casting

Publications (1)

Publication Number Publication Date
CN204370413U true CN204370413U (en) 2015-06-03

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Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104532832A (en) * 2014-11-20 2015-04-22 上海智岛建筑科技有限公司 Steel retaining cylinder and application method thereof
CN113756293A (en) * 2021-09-26 2021-12-07 北京首钢国际工程技术有限公司 Post-grouting cast-in-place pile suitable for strongly corrosive geological conditions and construction method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104532832A (en) * 2014-11-20 2015-04-22 上海智岛建筑科技有限公司 Steel retaining cylinder and application method thereof
CN113756293A (en) * 2021-09-26 2021-12-07 北京首钢国际工程技术有限公司 Post-grouting cast-in-place pile suitable for strongly corrosive geological conditions and construction method thereof

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150603

Termination date: 20171120