CN110374091A - A kind of rectangle friction pile mechanical hole building construction method - Google Patents

A kind of rectangle friction pile mechanical hole building construction method Download PDF

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Publication number
CN110374091A
CN110374091A CN201910615879.3A CN201910615879A CN110374091A CN 110374091 A CN110374091 A CN 110374091A CN 201910615879 A CN201910615879 A CN 201910615879A CN 110374091 A CN110374091 A CN 110374091A
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China
Prior art keywords
rectangle
pile
stake holes
contour line
casting
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CN201910615879.3A
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CN110374091B (en
Inventor
张延杰
潘延连
丁红岗
高买燕
李兵
胡芬
许利东
高春雷
吴俊鹏
周国才
杨小兵
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Yunnan Construction Investment Foundation Engineering Co Ltd
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Yunnan Construction Investment Foundation Engineering Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/34Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/36Concrete or concrete-like piles cast in position ; Apparatus for making same making without use of mouldpipes or other moulds
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling

Abstract

The invention discloses a kind of rectangle friction pile mechanical hole building construction methods, belong to slope supporting structure construction technology field, this method comprises the following steps: the positioning of A. rectangle stake holes unwrapping wire;B. rectangle steel pile casting is made;C. rotary pile-digging machine borehole;D. rectangle steel pile casting is transferred in rectangle stake holes using manipulator, removes the extra earthwork of side wall;E. it backbreaks on the outside of steel pile casting region casting concrete;F. manipulator proposes steel pile casting;G. decentralization rectangle steel reinforcement cage and casting concrete formation friction pile.Construction method of the present invention solves artificial digging pile and is crushed into rock inefficiency, and do not allow Blasting Excavation in the case where environment is complicated, the very big problem of drilling construction difficulty, it only need to be using conventional rotary drilling machinery equipment, do not increase construction cost, and has the advantages that speed of fulfiling hole is fast, construction efficiency is high, easy to operate, security risk is low etc..

Description

A kind of rectangle friction pile mechanical hole building construction method
Technical field
The present invention relates to a kind of friction pile drilling construction methods, more particularly to a kind of applying for rectangle friction pile mechanical hole building Work method belongs to slope supporting structure construction technology field.
Background technique
Manual digging pile construction operating procedure is simple, easy for construction, bearing capacity of single pile is high, construction quality is easily guaranteed that.But Caisson underground work condition is poor, the security risk of bad environments, large labor intensity, single pile speed of application slowly, in construction It is very prominent, it is necessary to take underground work, human safety issues are extremely severe, and there are many unsafe factors and hidden danger, apply Work safety management difficulty is larger;And stake well digging process weakens slip mass drag itself, especially digs to below slider bed When hard and steady stratum, it usually needs explosion is big to the disturbance on stratum;Especially those are in the cunning in development of deformation stage Slope, explosion more exacerbate its unstability and construction risk, and the safety of construction personnel and periphery construction of structures is even more to be difficult to ensure.
Mechanical hole perfusion post construction efficiency is high, operator is few, risk is small, is influenced less by weather, but in square pile There is also some technical problems when construction, and such as most rotary digging stakes use circular bite currently on the market, in addition market The problems such as rectangular friction pile mechanical piling technique of upper appearance is immature, applicability is not strong or construction cost is excessively high exists.
Economic and Efficiency Analysis shows that (reason is to collapse although mechanical hole building increases compared with the concrete that artificial digging pile needs Hole and fullness coefficient increase), but the steel reinforced concrete dado of artificial digging pile can be reduced simultaneously, increased costs are less, are substantially at and hold Level state.
Construction risk can be greatly lowered with respect to manually digging hole in rectangle friction pile mechanical hole building, as collapsed during manually digging hole The emergency situations such as hole, electric shock, gas explosion improve construction efficiency, accelerate construction progress, solve manual digging pile construction progress Slowly, the big problem of risk has preferable market application prospect.
Summary of the invention
In order to overcome the shortage of prior art, the present invention provides a kind of rectangle friction pile mechanical hole building construction method, this method Using conventional rotary drilling machinery equipment, do not increase construction cost, with easy to operate, construction safety, speed it is fast, high-efficient excellent Point.
The present invention realizes that the technical solution of above-mentioned purpose is as follows:
A kind of rectangle friction pile mechanical hole building construction method, comprising the following steps:
A. rectangle stake holes unwrapping wire positions
A.1 rectangle stake holes contour line is determined;
A.2 rotary pile-digging machine bit diameter is determined according to rectangle stake holes contour line bond length;
A.3 lower brill stake core position for the first time is determined along rectangle stake holes contour line longitudinal direction;
A.4 it is determined according to rectangle stake holes contour line long side length and bores number under rotary pile-digging machine;
A.5 according to boring under rotary pile-digging machine, the positioning of number unwrapping wire is lower every time to bore stake core position;
B. rectangle steel pile casting is made;
C. rotary pile-digging machine borehole
C.1 the lower drilled as holes of rotary pile-digging machine gradation;
C.2 boring number as follows is more than twice, using jump digging method sequence of construction;
D. rectangle steel pile casting is transferred in rectangle stake holes using manipulator, removes the extra earthwork of side wall;
E. it backbreaks on the outside of steel pile casting region casting concrete;
F. manipulator proposes steel pile casting;
G. decentralization rectangle steel reinforcement cage and casting concrete formation friction pile.
Further, step A.2 in, the rotary pile-digging machine bit diameter need to be more than or equal to rectangle stake holes contour line short side Length is finally determined for compliance with the rotary pile-digging machine drill bit of requirement in conjunction with market common drill bit specification.
Further, step A.3 in, determine that stake core position of boring lower for the first time uses along rectangle stake holes contour line longitudinal direction The method of two point of contact Radius, the specific steps of this method are as follows: be with two endpoints of a short side of rectangle stake holes contour line Two point of contacts are justified with rotary pile-digging machine drill bit radius size work, so that the center of circle is fallen in rectangle stake holes contour line short side and be located at rectangle stake holes On elongated central line in contour line, which is lower brill stake core position;
Further, step A.4 in, under rotary pile-digging machine bore number determination method are as follows:
A.4.1 select two endpoints of the other side short side of rectangle stake holes contour line for two point of contacts, using two point of contacts one The method of radius determines brill stake core position under second;
A.4.2 if the lower drilling profile bored and rectangle stake holes contour line can surround Delta Region twice, and when three Number is bored when angular zone height is not more than a quarter of rectangle stake holes contour line bond length, under pile digger to be set to twice i.e. It can;
A.4.3 when Delta Region height is greater than a quarter of rectangle stake holes contour line bond length, third time digs stake Machine drill core position is located on short side center line, is particularly located at the center position for not excavating the short side center line in region;
A.4.4 if the drilling profile and rectangle stake holes contour line that bore for the first time and under third time can surround trigonum Domain, then follow the steps A.4.2~A.4.3, until the adjacent drilling profile bored lower twice surrounded with rectangle stake holes contour line three Until a quarter of the angular zone height no more than rectangle stake holes contour line bond length;
A.4.5 such as second and for the third time, the lower drilling profile bored and rectangle stake holes contour line can surround Delta Region, Execute step A.4.2~A.4.3, until the Delta Region that the adjacent drilling profile bored lower twice is surrounded with rectangle stake holes contour line Until a quarter of the height no more than rectangle stake holes contour line bond length;
A.4.5 A.4.2 referring to step, as the drilling profile bored under first and second times cannot be enclosed with rectangle stake holes contour line At Delta Region, then third time pile digger drill core position is located on short side center line, is particularly located in the short side for not excavating region The center position of heart line, then execute step A.4.4~A.4.5;
Rectangle steel pile casting of the present invention is overall length casing, and steel pile casting interface size is equal with rectangle stake holes contour line, Length is identical as rectangular pile depth.
The concrete that region pours of backbreaking on the outside of the steel pile casting uses the plain concrete of C15 grade, rapid-hardening.
Described removes the extra earthwork of side wall, the Delta Region that do not cut comprising rotary digging stake and the bottom slump soil body.
In step F, propose that steel pile casting need to carry out after the concrete final set that region of backbreaking pours using manipulator.
Construction method of the present invention has the beneficial effect that
Construction method of the present invention solves artificial digging pile and is crushed into rock inefficiency, and does not allow in the case where environment is complicated quick-fried Digging is broken, the very big problem of drilling construction difficulty only need to not increase construction cost, and have using conventional rotary drilling machinery equipment There are the advantages such as speed of fulfiling hole is fast, construction efficiency is high, easy to operate, security risk is low.
Detailed description of the invention
Stake core position view is bored under the first time that Fig. 1 is construction method of the present invention;
Fig. 2 is the rectangle stake holes and rotary digging stake core position view of construction method of the present invention;
Fig. 3 is the rotary digging stake first time pore-forming schematic diagram of construction method of the present invention;
Fig. 4 is second of pore-forming schematic diagram of rotary digging stake of construction method of the present invention;
Fig. 5 is that the manipulator of construction method of the present invention transfers overall length casing schematic diagram;
Fig. 6 is placing concrete schematic diagram on the outside of the casing of construction method of the present invention.
In figure: 1- rectangle stake holes contour line;2,3- short side endpoint;4- short side center line;5- is lower for the first time to bore stake core position; Second of 6- lower brill stake core position;The Delta Region 7-;It backbreaks on the outside of 8- steel pile casting region.
Specific embodiment
The specific embodiment of technical solution of the present invention is described in detail with reference to the accompanying drawing.
It is illustrated by taking landslide control engineering as an example, slope supporting structure division uses peg board formula retaining wall, pile foundation Rectangle friction pile having a size of 1.5m × 2.4m.Construction method referring to figure 1 and figure 2, generally comprises following steps:
A. rectangle stake holes unwrapping wire positions
A.1 the contour line of rectangle stake holes 1.5m × 2.4m is determined;
A.2 be 1.5m according to rectangle stake holes contour line bond length, in the market using it is medium-sized or large-scale rotary drilling rig at Bore dia is determined 0.8~2.5m (remarks: if rotary digging drilling hole bored concrete pile bit diameter is 600mm, practical pore-forming is 670mm) Rotary pile-digging machine bit diameter is 1.8m;
A.3 lower brill stake core position for the first time is determined along rectangle stake holes contour line longitudinal direction, as shown in Figure 1, cutting using two The method of point Radius, with two endpoints (2,3) of rectangle stake holes contour line short side for two point of contacts, with rotary pile-digging machine drill bit half Diameter (0.9m) draws circle, so that the center of circle is fallen in rectangle stake holes contour line short side and is located on the center line 4 in rectangle stake holes contour line, the circle The heart is first time lower brill stake core position 5;
A.4 using two endpoints of rectangle stake holes contour line another short side as point of contact, according to the side of two point of contact Radius Method determines second of lower brill stake core position 6;As shown in Fig. 2, calculating a height of 187mm of Delta Region 7, area is less than 966cm2, It influences less the decentralization of steel pile casting, therefore it is twice that number is bored under rotary pile-digging machine;
A.5 according to the stake core position for boring brill under the positioning twice of number unwrapping wire under rotary pile-digging machine.
B. production interface size is 1.5m × 2.4m rectangle overall length steel pile casting.
C. the lower drilled as holes of rotary pile-digging machine gradation, as shown in Figure 3 and Figure 4.
D. overall length casing is transferred in rectangle stake holes using manipulator, as shown in figure 5, in removing Delta Region 7 and bottom The extra earthwork of the side walls such as portion's slump soil body.
E. it is cast on the outside of steel pile casting at region 8 of backbreaking using the plain concrete of C15 grade, rapid-hardening, as shown in Figure 6.
F. concrete (about 9 hours) after final set at region 8 propose steel pile casting with manipulator.
G. decentralization rectangle steel reinforcement cage and casting concrete formation friction pile.
Foregoing merely illustrate one embodiment of the present of invention, the present invention can also have other various embodiments, without departing substantially from this In the case where spirit and its essence, those skilled in the art can make according to the present invention it is various it is corresponding change and Deformation, but these corresponding changes and modifications all should belong to the protection scope of the claims in the present invention.

Claims (9)

1. a kind of rectangle friction pile mechanical hole building construction method, which comprises the following steps:
A. rectangle stake holes unwrapping wire positions
A.1 rectangle stake holes contour line is determined;
A.2 rotary pile-digging machine bit diameter is determined according to rectangle stake holes contour line bond length;
A.3 lower brill stake core position for the first time is determined along rectangle stake holes contour line longitudinal direction;
A.4 it is determined according to rectangle stake holes contour line long side length and bores number under rotary pile-digging machine;
A.5 according to boring under rotary pile-digging machine, the positioning of number unwrapping wire is lower every time to bore stake core position;
B. rectangle steel pile casting is made;
C. rotary pile-digging machine borehole
C.1 the lower drilled as holes of rotary pile-digging machine gradation;
C.2 boring number as follows is more than twice, using jump digging method sequence of construction;
D. rectangle steel pile casting is transferred in rectangle stake holes, removes the extra earthwork of side wall;
E. it backbreaks on the outside of steel pile casting region casting concrete;
F. steel pile casting is proposed;
G. decentralization rectangle steel reinforcement cage and casting concrete formation friction pile.
2. rectangle friction pile mechanical hole building construction method according to claim 1, which is characterized in that step A.2 in, it is described Rotary pile-digging machine bit diameter need to be more than or equal to rectangle stake holes contour line bond length.
3. rectangle friction pile mechanical hole building construction method according to claim 1, which is characterized in that step A.3 in, along square Shape stake holes contour line longitudinal direction determines that lower stake core position of boring is using the method for two point of contact Radius for the first time.
4. rectangle friction pile mechanical hole building construction method according to claim 3, which is characterized in that two point of contact Radius sides The specific steps of method are as follows: with two endpoints of a short side of rectangle stake holes contour line for two point of contacts, with rotary pile-digging machine drill bit Radius size work is justified, and so that the center of circle is fallen in rectangle stake holes contour line short side and is located on the elongated central line in rectangle stake holes contour line, The center of circle is lower brill stake core position.
5. rectangle friction pile mechanical hole building construction method according to claim 1, which is characterized in that step A.4 in, rotary digging The determination method of number is bored under stake machine are as follows:
A.4.1 select two endpoints of the other side short side of rectangle stake holes contour line for two point of contacts, using two point of contact Radius Method, determine under second brill stake core position;
A.4.2 if the lower drilling profile bored and rectangle stake holes contour line can surround Delta Region twice, and work as trigonum Number is bored when domain height is not more than a quarter of rectangle stake holes contour line bond length, under pile digger to be set to twice;
A.4.3 when Delta Region height is greater than a quarter of rectangle stake holes contour line bond length, third time pile digger is bored Core position is located on short side center line, is particularly located at the center position for not excavating the short side center line in region;
A.4.4 such as first time and for the third time, the lower drilling profile bored and rectangle stake holes contour line can surround Delta Region, then hold Row step A.4.2~A.4.3, until the Delta Region height that the adjacent drilling profile bored lower twice and rectangle stake holes contour line surround Until a quarter of the degree no more than rectangle stake holes contour line bond length;
A.4.5 such as second and for the third time, the lower drilling profile bored and rectangle stake holes contour line can surround Delta Region, execute Step A.4.2~A.4.3, until the Delta Region height that the adjacent drilling profile bored lower twice is surrounded with rectangle stake holes contour line Until a quarter no more than rectangle stake holes contour line bond length;
A.4.6 A.4.2 referring to step, as the drilling profile and rectangle stake holes contour line that bore under first and second times cannot surround three Angular zone, then third time pile digger drill core position is located on short side center line, is particularly located at the short side center line for not excavating region Center position, then execute step A.4.4~A.4.5.
6. rectangle friction pile mechanical hole building construction method according to claim 1, which is characterized in that the rectangle steel shield Cylinder is overall length casing, and steel pile casting interface size is equal with rectangle stake holes contour line, and length is identical as rectangular pile depth.
7. rectangle friction pile mechanical hole building construction method according to claim 1, which is characterized in that outside the steel pile casting Concrete that region pours backbreak using C15 grade, the plain concrete of rapid-hardening in side.
8. rectangle friction pile mechanical hole building construction method according to claim 1, which is characterized in that in step D, remove side The extra earthwork of wall, the Delta Region that do not cut comprising rotary digging stake and the bottom slump soil body.
9. rectangle friction pile mechanical hole building construction method according to claim 1, which is characterized in that in step F, using machine The portable steel pile casting out of tool need to carry out after the concrete final set that region of backbreaking pours.
CN201910615879.3A 2019-07-09 2019-07-09 Mechanical pore-forming construction method for rectangular slide-resistant pile Active CN110374091B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110820733A (en) * 2019-11-07 2020-02-21 云南建投基础工程有限责任公司 Improved mechanical rapid hole forming construction method for simple rectangular slide-resistant pile
CN110820729A (en) * 2019-11-07 2020-02-21 云南建投基础工程有限责任公司 Efficient and safe integrated rapid hole forming method for anti-slide pile rotary excavating machinery
CN112227389A (en) * 2020-11-03 2021-01-15 云南交投集团云岭建设有限公司 Rectangular-section slide-resistant pile combined mechanical pore-forming construction method

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CN107587840A (en) * 2017-09-26 2018-01-16 中铁大桥局集团第五工程有限公司 A kind of rectangle pile foundation drilling construction method
CN107905236A (en) * 2017-11-10 2018-04-13 中铁隧道集团处有限公司 The construction method of friction pile churning driven fast pore-creating and concrete placings
CN108678661A (en) * 2018-03-22 2018-10-19 中交路桥北方工程有限公司 Rectangular friction pile forming hole method and the rectangular drill bit of pore-forming
CN109630015A (en) * 2018-11-26 2019-04-16 中铁二十局集团第二工程有限公司 A kind of friction pile mechanical hole building method
CN109681116A (en) * 2019-01-31 2019-04-26 四川省交通运输厅交通勘察设计研究院 A kind of square pile rotary drilling device and its rotary digging method for realizing rectangular pore-forming

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107587840A (en) * 2017-09-26 2018-01-16 中铁大桥局集团第五工程有限公司 A kind of rectangle pile foundation drilling construction method
CN107905236A (en) * 2017-11-10 2018-04-13 中铁隧道集团处有限公司 The construction method of friction pile churning driven fast pore-creating and concrete placings
CN108678661A (en) * 2018-03-22 2018-10-19 中交路桥北方工程有限公司 Rectangular friction pile forming hole method and the rectangular drill bit of pore-forming
CN109630015A (en) * 2018-11-26 2019-04-16 中铁二十局集团第二工程有限公司 A kind of friction pile mechanical hole building method
CN109681116A (en) * 2019-01-31 2019-04-26 四川省交通运输厅交通勘察设计研究院 A kind of square pile rotary drilling device and its rotary digging method for realizing rectangular pore-forming

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110820733A (en) * 2019-11-07 2020-02-21 云南建投基础工程有限责任公司 Improved mechanical rapid hole forming construction method for simple rectangular slide-resistant pile
CN110820729A (en) * 2019-11-07 2020-02-21 云南建投基础工程有限责任公司 Efficient and safe integrated rapid hole forming method for anti-slide pile rotary excavating machinery
CN110820729B (en) * 2019-11-07 2021-04-16 云南建投基础工程有限责任公司 Efficient and safe integrated rapid hole forming method for anti-slide pile rotary excavating machinery
CN112227389A (en) * 2020-11-03 2021-01-15 云南交投集团云岭建设有限公司 Rectangular-section slide-resistant pile combined mechanical pore-forming construction method

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