CN104727323A - Self-drilling steel pipe pile continuous wall construction method and steel pipe pile continuous wall used in self-drilling steel pipe pile continuous wall construction method - Google Patents

Self-drilling steel pipe pile continuous wall construction method and steel pipe pile continuous wall used in self-drilling steel pipe pile continuous wall construction method Download PDF

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Publication number
CN104727323A
CN104727323A CN201510133502.6A CN201510133502A CN104727323A CN 104727323 A CN104727323 A CN 104727323A CN 201510133502 A CN201510133502 A CN 201510133502A CN 104727323 A CN104727323 A CN 104727323A
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China
Prior art keywords
steel pipe
pipe pile
pile
construction
drill bit
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CN201510133502.6A
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Chinese (zh)
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张继红
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张继红
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Priority to CN201510133502.6A priority Critical patent/CN104727323A/en
Publication of CN104727323A publication Critical patent/CN104727323A/en
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/28Placing of hollow pipes or mould pipes by means arranged inside the piles or pipes
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/02Foundation pits
    • E02D17/04Bordering surfacing or stiffening the sides of foundation pits
    • 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
    • E02D5/38Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
    • 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
    • E02D5/46Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/26Placing by using several means simultaneously

Abstract

The invention relates to a self-drilling steel pipe pile continuous wall construction method and a steel pipe pile continuous wall used in the self-drilling steel pipe pile continuous wall construction method in the field of foundation pit support projects. According to the steel pipe pile continuous wall, a power device (5), a self-drilling drill bit (6) and a self-drilling drill pipe (7) are arranged in a steel pipe pile (1), during inserting construction, the self-drilling drill pipe (7) and the self-drilling drill bit (6) are driven through the power device (5), the drilling disturbing construction is carried out on the soil body at the bottom of the steel pipe pile (1), the inserting construction difficulty and the effect of inserting construction on the surrounding environment are greatly reduced, and the effect of pile pulling construction on the surrounding environment can be reduced. Construction equipment is simple, efficiency is high, cost is low, and the effect on the surrounding environment is low.

Description

A kind of from creeping into steel pipe pile continuous wall construction method and steel pipe pile diaphragm wall used thereof
Technical field
The present invention relates to the bracing of foundation pit field in geotechnical engineering field.
Background technology
One of key technology that the insertion soil body of the steel pipe village and steel pipe pile diaphragm wall is constructed in the Foundation Pit Support Engineering field being geotechnical engineering field, how to solve the plug construction of the steel pipe pile diaphragm wall under pan soil area and complex environment, effectively controlling the impact of plug construction on surrounding enviroment, is one of major obstacle of applying at bracing of foundation pit and pile foundation engineering of steel pipe pile diaphragm wall and steel pipe pile.In pan soil area, it is large that steel pipe pile diaphragm wall inserts difficulty of construction, in the area of surrounding enviroment complexity, it is the difficult problem needing during steel pipe pile diaphragm wall is applied in base pit engineering and pile foundation engineering to overcome that steel pipe pile and steel pipe pile diaphragm wall insert the impacts of factor on surrounding enviroment such as traction sedimentation and Construction Vibration of constructing.
Summary of the invention
First object of the present invention is to provide a kind of from creeping into steel pipe pile continuous wall construction method, this construction method can complete the construction of steel pipe pile diaphragm wall smoothly, construction fast, is constructed very little on the impact of surrounding enviroment, is belonged to the construction method with tiny disturbance in geotechnical engineering.
This certainly creeps into steel pipe pile continuous wall construction method and comprises the following steps:
A) steel pipe pile is connected and installed on steel pipe pile, makes steel pipe pile diaphragm wall component.
B) steel pipe pile diaphragm wall to be onstructed is located, by power set, from entering drilling rod, being fixed on the steel pipe pile of steel pipe pile diaphragm wall from entering drill bit, to certainly enter drill bit and be positioned over the bottom of steel pipe pile, power set being installed on the top of steel pipe pile, by certainly entering drilling rod, power set being connected with from entering drill bit;
C) utilize the steel pipe pile of steel pipe pile diaphragm wall double as pile frame by steel pipe pile and be attached to steel pipe pile connection on steel pipe pile, power set, certainly enter drilling rod, certainly entering drill bit, to be adjusted to drilling direction consistent;
D) starting power set, by certainly entering drilling rod, rotating torque being passed to from entering drill bit, carry out steel pipe pile position soil body brill by the rotation of certainly entering drill bit and disturb construction; The deadweight utilizing steel pipe pile to be connected with steel pipe pile, as pile sinking power or the part as pile sinking power, makes the steel pipe pile of steel pipe pile diaphragm wall connect insertion together with steel pipe pile and bores in the soil body after disturbing;
E) step is repeated a) to steps d), insert steel pipe pile by root and be connected with steel pipe pile, and make adjacent steel pile tube be connected to form the steel pipe pile diaphragm wall that can keep off native sealing by steel pipe pile, complete and insert construction from creeping into steel pipe pile diaphragm wall.
Certainly creep in steel pipe pile continuous wall construction method above-mentioned, the steps d above-mentioned) in, increase pile sinking power by the one or more combination in vibration, hammering and silent piling method, accelerate the insertion construction of steel pipe pile diaphragm wall.
Certainly creep in steel pipe pile continuous wall construction method above-mentioned, steps d above-mentioned) in, after steel pipe pile to be connected with steel pipe pile and to insert the soil body, can by power set, from entering drilling rod, from entering after drill bit is removed to be installed on next root steel pipe pile, realizing reusing of these three parts.
Certainly creep in steel pipe pile continuous wall construction method above-mentioned, the steps d above-mentioned) in brill disturb construction, can be drilling construction, stir the soil body construction or churning disturbed soil construction in one or more combination.
At above-mentioned steps e) in, steel pipe pile diaphragm wall insert construction and after being used to complete, extract steel pipe pile diaphragm wall component, and bore disturb after the soil body in mix cement paste, sclerosis bore disturb after the soil body.
Second object of the present invention be to provide a kind of from creep into steel pipe pile continuous wall construction method used certainly creep into steel pipe pile diaphragm wall, it is simple that this creeps into steel pipe pile diaphragm wall technique certainly, and plug construction is little on surrounding enviroment impact, and easy construction, cost is low.
This certainly creeps into steel pipe pile diaphragm wall and comprises steel pipe pile, steel pipe pile connects, sealing cavity, water-stop body, power set, from entering drill bit, from entering drilling rod seven part, steel pipe pile is wherein that consequence of having constructed is carried water the main force structure of soil pressure, steel pipe pile connects the structure for the soil pressure between adjacent steel pile tube being passed to steel pipe pile between adjacent steel pile tube, sealing cavity is be positioned at adjacent steel pile tube seam crossing and with adjacent steel pile tube or be connected to the cavity structure having certain length along seam direction that the component of adjacent steel pile tube is sidewall, water-stop body is that be filled in sealing cavity can the object of shutoff adjacent steel pile tube seam, power set for being arranged on, steel pipe pile can provide the device of rotating torque, from enter drill bit be positioned at bottom steel pipe pile by the soil body bore disturb loosening structure, be be connected to power set and certainly enter the power transmission of power set between drill bit to from entering the rod-like structure of drill bit from entering drilling rod.
Certainly creep in steel pipe pile diaphragm wall above-mentioned, the one or more combination in vibrating hammer, pile hammer, silent piling device can be installed on above-mentioned steel pipe pile.
Certainly creep in steel pipe pile diaphragm wall above-mentioned, can install fluid filling device at steel pipe pile inwall, fluid filling device is by water or mud or grouts in the device boring and disturb in the soil body.
Certainly creep in steel pipe pile diaphragm wall above-mentioned, above-mentioned carrier pipe can be connected with steel pipe pile sidewall along steel pipe pile cutoff.
Certainly creep in steel pipe pile diaphragm wall above-mentioned, above-mentioned slurry prime device comprises compression pump and carrier pipe two parts.
Certainly creep in steel pipe pile diaphragm wall above-mentioned, above-mentioned certainly to enter drill bit can be one or more combination in spiral plate drill bit, agitation pile drill bit, drilled pile drill bit, rotary churning pile drill bit.
Of the present inventionly insert construction method from creeping into steel pipe pile diaphragm wall and used certainly creep into steel pipe pile diaphragm wall, solve steel pipe pile diaphragm wall and insert the disturbance difficult problem to the soil body in soil body work progress, and the insertion difficulty of construction of steel pipe pile diaphragm wall in pan soil is significantly reduced, and extract in work progress at steel pipe pile diaphragm wall and be conducive to reducing pile pulling traction effect, be particularly suitable for the base pit engineering in the base pit engineering of surrounding enviroment complexity and pan soil area.
Accompanying drawing explanation
Fig. 1 be first embodiment of the present invention and second embodiment used certainly creep into steel pipe pile diaphragm wall vertical section organigram.
Fig. 2 be first embodiment of the present invention and second embodiment used certainly creep into steel pipe pile diaphragm wall cross-sectional configuration schematic diagram;
Detailed description of the invention
As first embodiment as shown in Figures 1 and 2 of the present invention, main purpose is that introducing the steel pipe pile diaphragm wall structure from creeping into steel pipe pile diaphragm wall insertion construction method used of the present invention constructs and operating principle.This creeps into certainly, and steel pipe pile diaphragm wall comprises steel pipe pile (1), steel pipe pile connects (2), sealing cavity (3), water-stop body (4), power set (5), certainly enters drill bit (6), certainly enters drilling rod (7) seven part.Steel pipe pile (1) is wherein that consequence of having constructed is carried water the main force structure of soil pressure, and steel pipe pile (1) can be round steel pipe, also can be square steel pipe.Steel pipe pile connects (2) for be positioned between adjacent steel pile tube (1) and the soil pressure between adjacent steel pile tube (1) to be passed to the structure of steel pipe pile (1).The mode that can interlock with primary and secondary as shown in Figures 1 and 2 that steel pipe pile connection (2) can be made up of the opening steel pipe of steel plate, steel pipe, C tee section connects, and also can be the form connection that the roll bending of similar steel sheet pile interface interlocks.Sealing cavity (3) is for being positioned at seam (8) place between adjacent steel pile tube (1) and take adjacent steel pile tube (1) or the component that is connected to adjacent steel pile tube (1) as the cavity structure having certain length along seam (8) direction of sidewall.The sidewall of sealing cavity (3) must comprise the sidewall of two adjacent steel pipe piles (1) or be connected to steel pipe pile (1) upper member, namely, when sealing cavity (3) sold stowing, the seam (8) between the adjacent steel pile tube (1) that sealing cavity (3) is corresponding must be filled with body shutoff.Water-stop body (4) is that be filled in sealing cavity (3) can the object of seam (8) of shutoff adjacent steel pile tube (1).Power set (5) for being arranged on, steel pipe pile (1) can provide the device of rotating torque.Power set (5) can be motor, also can be by hydraulic pressure or air-driven device.In the present embodiment, one or more combination in vibrating hammer (14), silent piling device or hammering device can be installed on above-mentioned steel pipe, apply pile sinking power at steel pipe pile (1) top, accelerate the insertion speed of application of steel pipe pile (1).For being positioned at steel pipe pile (1) bottom, soil body brill is disturbed loosening structure from entering drill bit (6).Above-mentioned certainly enter that drill bit (6) can be spiral plate drill bit, the one or more combination stirred in drill bit, drilled pile drill bit, rotary churning pile drill bit, if spiral plate drill bit, the pile sinking or pile pulling power that impel steel pipe pile (1) sinking or lifting can also be provided while the soil body disturbed by brill.From entering drilling rod (7) for being connected to power set (5) and certainly entering the rod-like structure between drill bit (6), the power transmission of power set (5) being entered extremely certainly drill bit (6).In the present embodiment, dry method can being adopted to carry out soil body brill and to disturb construction, namely by moving from the brill entering drill bit (6), soil body brill being disturbed loosening; Wet method can also be adopted to carry out soil body brill and to disturb construction, namely certainly enter drill bit (6) bore disturb in the process of the soil body, water, mud or cement paste is injected in the soil body, the soil body after brill is disturbed stirs by moving from the brill entering drill bit (6) and dilutes for mud or soil cement slurry, improves brill and disturbs effect.In the present embodiment, can install fluid filling device (9) at the inwall of steel pipe pile (1), fluid filling device (9) is by water or mud or grouts in the device boring and disturb in the soil body.Fluid filling device (9) comprises compression pump (10) and forms with carrier pipe (11) two parts.In the present embodiment, can being connected with steel pipe pile (1) sidewall along steel pipe pile (1) section of carrier pipe (11).
As second embodiment as shown in Figures 1 and 2 of the present invention, main purpose is that introducing the steel pipe pile diaphragm wall that certainly creeps into of the present invention inserts construction method and construction sequence.This certainly creeps into steel pipe pile continuous wall construction method and comprises following five rapid.In the first step of the present embodiment, steel pipe pile (1) being connected (2) connection with steel pipe pile is an entirety, make steel pipe pile diaphragm wall component, its structure structure as shown in Figures 1 and 2, also can adopt other forms as described in first embodiment of the present invention.Thus complete the first step of the present embodiment, enter second step.In this step, steel pipe pile diaphragm wall to be onstructed is located, by power set (5), from entering drilling rod (7), be fixed on the steel pipe pile (1) of steel pipe pile diaphragm wall from entering drill bit (6), certainly the bottom that drill bit (6) is arranged on steel pipe pile (1) will be entered, power set (5) are installed on the top of steel pipe pile (1), by certainly entering drilling rod (7), power set (5) are connected with from entering drill bit (6), the steel pipe pile diaphragm wall element structure that certainly creeps into being inserted into construction after installation constructs as shown in Figures 1 and 2, selecting of all parts can refer to first embodiment of the present invention.Can by certainly entering drill bit (6), certainly enter drilling rod (7) and be installed on hollow part in steel pipe pile (1), make from entering the bottom that drill bit (6) is positioned at steel pipe pile (1), and make the bottom of lower end lower than steel pipe pile from entering drill bit (6), the soil body of steel pipe pile (1) bottom can be made like this before steel pipe pile (1) inserts to be subject to brill and to disturb.Power set (5) can also be made and certainly enter drilling rod (7) and certainly enter drill bit (6) to be connected to the fixing entirety of relative position, and make can slide up and down within the specific limits between these three parts and steel pipe pile (1), such as, chute (12) is fixed at the inwall of steel pipe pile (1), the entirety that these three parts are linked to be can under the control of chute (12), and steel pipe pile can slide up and down between (1), but and can not relatively rotate between steel pipe pile (1), certainly, also can be directly fixing with steel pipe pile (1) by these three parts.Thus complete the second step of the present embodiment, enter the 3rd step.In this step, the steel pipe pile of steel pipe pile diaphragm wall (1) is utilized to double as pile frame by steel pipe pile (1) and be attached to that steel pipe pile on steel pipe pile (1) connects (2), power set (5), certainly enters drilling rod (7), certainly entering drill bit (6), to be adjusted to drilling direction consistent.Generally, steel pipe pile diaphragm wall is vertical construction, as long as the combination of above-mentioned component to be sling with crane (13) and be vertically lowered into ground.Thus complete the 3rd step of the present embodiment, enter the 4th step.In this step, start power set (5), by certainly entering drilling rod (7), rotating torque is passed to from entering drill bit (6), carry out steel pipe pile (1) position soil body brill by the rotation of certainly entering drill bit (6) and disturb construction, utilize steel pipe pile (1) to be connected the deadweight of (2) with steel pipe pile as pile sinking power or the part as pile sinking power simultaneously, make the steel pipe pile of steel pipe pile diaphragm wall (1) connect (2) insertion together with steel pipe pile and bore in the soil body after disturbing.In this step, can be slightly less than the internal diameter of steel pipe pile (1) from the diameter entering drill bit (6), by certainly entering drill bit (6), boring the swing in dynamic process, to make to bore the external diameter of scope and the steel pipe pile (1) of disturbing the soil body suitable.In this step to the brill of the soil body disturb construction can be drilling construction, stir the soil body construction or churning disturbed soil construction in one or more combination.In this step, increase pile sinking power by the one or more combination in hammering, vibration and silent piling device, accelerate the insertion construction of steel pipe pile diaphragm wall.After steel pipe pile (1) is connected (2) insertion soil body with steel pipe pile, can by power set (5), from entering drilling rod (7), from entering after drill bit (6) is removed to be installed on next root steel pipe pile (1), realizing reusing of these three parts.Thus complete the 4th of the present embodiment, enter the 5th step.In this step, repeat step a) to steps d), insert steel pipe pile (1) by root to be connected with steel pipe pile (2), and make adjacent steel pile tube (1) form the steel pipe pile diaphragm wall that can keep off native sealing by being connected (2) with steel pipe pile, complete and insert construction from creeping into steel pipe pile diaphragm wall.Of the present invention from creeping into steel pipe pile continuous wall construction method, because of insert construction time to the soil body disturbance to some extent in steel pipe pile (1), the hole that the timely filling pile pulling of the soil body after the disturbance in steel pipe pile (1) stays is conducive to when extracting construction, thus reduce the sedimentation of pile pulling traction, under the soil body in steel pipe pile (1) bores and disturbs sufficient situation, such as disturb formation mud by brill, should when steel pipe pile extracts construction or after extracting construction, disturb in the soil body at brill and mix cement, so that pile pulling after-hardening is bored disturb the loosening soil body.
This patent includes but not limited to other construction methods of the alternative use of professional person in this area.

Claims (11)

1., from creeping into a steel pipe pile continuous wall construction method, comprise the following steps:
A) steel pipe pile being connected (2) is installed on steel pipe pile (1), makes steel pipe pile diaphragm wall component.
B) steel pipe pile diaphragm wall to be onstructed is located, by power set (5), from entering drilling rod (7), being fixed on the steel pipe pile (1) of steel pipe pile diaphragm wall from entering drill bit (6), certainly the bottom that drill bit (6) is positioned over steel pipe pile (1) will be entered, power set (5) being installed on the top of steel pipe pile (1), by certainly entering drilling rod (7), power set (5) being connected with from entering drill bit (6);
C) steel pipe pile of steel pipe pile diaphragm wall (1) is utilized to double as pile frame by steel pipe pile (1) and be attached to that steel pipe pile on steel pipe pile connects (2), power set (5), certainly enters drilling rod (7), certainly entering drill bit (6), to be adjusted to drilling direction consistent;
D) power set (5) are started, by certainly entering drilling rod (7), rotating torque being passed to from entering drill bit (6), carrying out steel pipe pile (1) position soil body brill by the rotation of certainly entering drill bit (6) and disturbing construction; Utilize steel pipe pile (1) to be connected the deadweight of (2) with steel pipe pile as pile sinking power or the part as pile sinking power, make the steel pipe pile of steel pipe pile diaphragm wall (1) connect (2) insertion together with steel pipe pile and bore in the soil body after disturbing;
E) step is repeated a) to steps d), insert steel pipe pile (1) by root to be connected with steel pipe pile (2), and make adjacent steel pile tube (1) connect by steel pipe pile the steel pipe pile diaphragm wall that (2) formation can keep off native sealing, complete and insert construction from creeping into steel pipe pile diaphragm wall.
2. according to claim 1 from creeping into steel pipe pile continuous wall construction method, it is characterized in that in above-mentioned steps d) in, increase pile sinking power by the one or more combination in vibration, hammering and silent piling method, accelerate the insertion construction of steel pipe pile diaphragm wall.
3. according to claim 1 from creeping into steel pipe pile continuous wall construction method, it is characterized in that in above-mentioned steps d) in, after steel pipe pile (1) is connected (2) insertion soil body with steel pipe pile, can by power set (5), from entering drilling rod (7), from entering after drill bit (6) is removed to be installed on next root steel pipe pile (1), realizing reusing of these three parts.
4. according to claim 1 from creeping into steel pipe pile continuous wall construction method, to it is characterized in that in above-mentioned steps d) in brill disturb construction, can be drilling construction, the one or more combination stirred in soil body construction or the construction of churning disturbed soil.
5. according to claim 1 from creeping into steel pipe pile continuous wall construction method, it is characterized in that at above-mentioned step e) in, in steel pipe pile diaphragm wall insertion construction and after being used to complete, extract steel pipe pile diaphragm wall component, and bore disturb after the soil body in mix cement paste, sclerosis bore disturb after the soil body.
6. one kind according to claim 1 from creep into steel pipe pile continuous wall construction method used certainly creep into steel pipe pile diaphragm wall, it is characterized in that comprising steel pipe pile (1), steel pipe pile connects (2), sealing cavity (3), water-stop body (4), power set (5), from entering drill bit (6), from entering drilling rod (7) seven part, steel pipe pile (1) is wherein that consequence of having constructed is carried water the main force structure of soil pressure, steel pipe pile connects (2) for being positioned at the structure between adjacent steel pile tube (1), the soil pressure between adjacent steel pile tube (1) being passed to steel pipe pile (1), sealing cavity (3) is for being positioned at seam (8) place of adjacent steel pile tube (1) and take adjacent steel pile tube (1) or the component that is connected to adjacent steel pile tube (1) as the cavity structure having certain length along seam (8) direction of sidewall, water-stop body (4) is that be filled in sealing cavity (3) can the object of seam (8) of shutoff adjacent steel pile tube (1), power set (5) for being arranged on, steel pipe pile (1) can provide the device of rotating torque, for being positioned at steel pipe pile (1) bottom, soil body brill is disturbed loosening structure from entering drill bit (6), from entering drilling rod (7) for being connected to power set (5) and certainly entering the rod-like structure between drill bit (6), the power transmission of power set (5) being entered extremely certainly drill bit (6).
7. according to claim 6 from creeping into steel pipe pile diaphragm wall, it is characterized in that the one or more combination of installing on above-mentioned steel pipe pile (1) in vibrating hammer, pile hammer, silent piling device.
8. according to claim 6 from creeping into steel pipe pile diaphragm wall, it is characterized in that installing fluid filling device (9) at above-mentioned steel pipe pile (1) inwall, fluid filling device (9) is by water or mud or grouts in the device boring and disturb in the soil body.
9. according to claim 6 from creeping into steel pipe pile diaphragm wall, it is characterized in that above-mentioned slurry prime device (9) comprises compression pump (10) and carrier pipe (11) two parts.
10. according to claim 6 from creeping into steel pipe pile diaphragm wall, it is characterized in that above-mentioned carrier pipe (11) is connected along the sidewall of steel pipe pile (1) section with steel pipe pile (1).
11. is according to claim 6 from creeping into steel pipe pile diaphragm wall, it is characterized in that above-mentioned certainly to enter drill bit (6) be one or more combination in spiral plate drill bit, agitation pile drill bit, drilled pile drill bit, rotary churning pile drill bit.
CN201510133502.6A 2015-03-25 2015-03-25 Self-drilling steel pipe pile continuous wall construction method and steel pipe pile continuous wall used in self-drilling steel pipe pile continuous wall construction method Pending CN104727323A (en)

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CN201510133502.6A CN104727323A (en) 2015-03-25 2015-03-25 Self-drilling steel pipe pile continuous wall construction method and steel pipe pile continuous wall used in self-drilling steel pipe pile continuous wall construction method

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CN201510133502.6A CN104727323A (en) 2015-03-25 2015-03-25 Self-drilling steel pipe pile continuous wall construction method and steel pipe pile continuous wall used in self-drilling steel pipe pile continuous wall construction method
CN201610025363.XA CN106013151A (en) 2015-03-25 2016-01-05 Continuous pile wall construction method and construction device used for continuous pile wall construction method

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CN106193034A (en) * 2016-08-11 2016-12-07 四川电力建设三公司 Photovoltaic plant spiral steel pipe pile construction method
CN107780408A (en) * 2017-09-19 2018-03-09 温州天泽建设有限公司 Concrete tubular pile device and its construction method
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CN106193034A (en) * 2016-08-11 2016-12-07 四川电力建设三公司 Photovoltaic plant spiral steel pipe pile construction method
CN106193034B (en) * 2016-08-11 2018-11-30 中国电建集团四川工程有限公司 Photovoltaic plant spiral steel pipe pile construction method
CN107780408A (en) * 2017-09-19 2018-03-09 温州天泽建设有限公司 Concrete tubular pile device and its construction method
CN107780408B (en) * 2017-09-19 2019-08-20 温州天泽建设有限公司 Concrete tubular pile device and its construction method
CN108643166A (en) * 2018-05-22 2018-10-12 江苏地基工程有限公司 The construction method for pulling out steel sheet pile soil vibration is beaten in a kind of weakening
CN108643166B (en) * 2018-05-22 2021-03-30 江苏地基工程有限公司 Construction method for weakening soil layer vibration of driven and pulled steel sheet pile

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