CN105221076B - A kind of enlarged footing fourth type screw cast-in-place pile pile making method and double dynamical casing reamer drilling tool - Google Patents
A kind of enlarged footing fourth type screw cast-in-place pile pile making method and double dynamical casing reamer drilling tool Download PDFInfo
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- CN105221076B CN105221076B CN201510715737.6A CN201510715737A CN105221076B CN 105221076 B CN105221076 B CN 105221076B CN 201510715737 A CN201510715737 A CN 201510715737A CN 105221076 B CN105221076 B CN 105221076B
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- drill bit
- drilling
- bit
- pilot drill
- extruding
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- 238000005553 drilling Methods 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000005183 dynamical system Methods 0.000 claims abstract description 15
- 238000005086 pumping Methods 0.000 claims abstract description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 4
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000010412 perfusion Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a kind of enlarged footing fourth type screw cast-in-place pile pile making method and double dynamical casing reamer drilling tool.First, start overhead power system, drilling rod is just bored, driving pilot drill bit extruding drilling, subsequent start-up middle part dynamical system, drive sleeve drill bit follow-up extruding drilling expands head bore；After the depth for expanding head bore reaches requirement, stop pipe bit drilling, pilot drill bit continues to creep into until design stake is deep；Then invert and lift drilling rod, open the ratchet of the first thread forming mechanism of extruding, form big footpath and the pump concrete of lower thread stake holes；When pilot drill bit is promoted to pipe bit, make pipe bit reversion lifting, head bore is expanded by the ratchet extruding of the second thread forming mechanism, big footpath and the pump concrete of top screw thread stake holes is formed；Until pilot drill bit is reached after setting absolute altitude, stop concrete pumping, so as to form enlarged footing fourth type screw cast-in-place pile.Easy construction of the present invention, had not only saved material but also can effectively provide bearing capacity, adaptable.
Description
Technical field
The present invention relates to enlarged footing fourth type screw cast-in-place pile pile making method and double dynamical casing reamer drilling tool.
Background technology
Extruding stake and Screw Pile are conventional pile foundation construction technique in the basic engineering construction of weak soil, as stiffening basic ground
Meet bearing capacity and control settlement rate.Extruding stake has the advantages that fast pile-forming speed, efficiency high as pile foundation, not fetched earth, but
Its bearing capacity is limited, it is impossible to meet requirement of the complex building to basis；The bearing capacity of Screw Pile, which has, significantly to be improved, but by
It is less than normal in pile body effective pile diameter, and bearing capacity of single pile and the effective diameter of stake are closely related, therefore it is uniform isodiametric
Although Screw Pile saves portion of material, bearing capacity of single pile is not significantly increased.
The content of the invention
The technical problems to be solved by the invention are that the not enough one kind that provides existed for above-mentioned prior art was both saved
Material can effectively provide the enlarged footing fourth type screw cast-in-place pile pile making method and double dynamical casing reamer drilling tool of bearing capacity again.
The technical solution adopted in the present invention is：A kind of enlarged footing fourth type screw cast-in-place pile pile making method, it is characterised in that：
It comprises the following steps：
Overhead power system starts, and drilling rod is just bored, driving pilot drill bit extruding drilling, dynamical system in the middle part of subsequent start-up
System, drive sleeve drill bit follow-up extruding drilling expands head bore；
After the depth for expanding head bore reaches requirement, stop pipe bit drilling, pilot drill bit continues to creep into until design
Stake is deep, forms enlarged footing fourth type unthreaded hole；
Invert and lift drilling rod, open the ratchet of the first thread forming mechanism of extruding, pass through the first thread forming machine configuration
Into the big footpath of lower thread stake holes；Concrete pump is opened simultaneously, passes through drilling rod and pilot drill bit center-aisle pump concrete；
When pilot drill bit is promoted to pipe bit, makes pipe bit reversion lifting, open the second thread forming machine of extruding
The ratchet of structure, the big footpath for expanding head bore formation top screw thread stake holes is extruded by the second thread forming mechanism；Coagulation is opened simultaneously
Native pump, passes through drilling rod and pilot drill bit center-aisle pump concrete；
Until pilot drill bit is promoted to after setting absolute altitude, stop concrete pumping, so as to form enlarged footing fourth type screw thread
Bored concrete pile.
By above-mentioned technical proposal, the rate of penetration of the pilot drill bit can be consistent without deliberately with lifting speed,
Pipe bit rate of penetration can be consistent without the lifting speed deliberately with pilot drill bit.
A kind of double dynamical casing reamer drilling tool, it is characterised in that：It includes drilling rod and the sleeve pipe being sleeved on outside drilling rod, described
The lower end of drilling rod stretches out that sleeve pipe is outer to be connected with pilot drill bit, be provided with pilot drill bit the first screw thread that can stretch out outside drill bit into
Type mechanism, pipe bit is provided with the lower end of sleeve pipe, and the second spiral shell that can be stretched out outside pipe bit is provided with pipe bit
Line shaping mechanism, the drilling rod is driven by overhead power system drive, described sleeve pipe by middle part dynamical system.
By above-mentioned technical proposal, the overhead power system is arranged on the top of middle part dynamical system, and drilling rod passes through middle part
It is connected after dynamical system and pipe bit with pilot drill bit.
Having the beneficial effect that acquired by the present invention：1st, in the present invention, drilling rod guide drilling compact making hole formation lower thread
The path of stake holes, and pile body top is expanded by casing drilling tool follow-up extruding drilling, form the unthreaded hole of fourth type screw cast-in-place pile；Carry
The big footpath of screw thread stake holes, and concrete perfusion are formed when rising；Not only save material to reach but also can effectively improve bearing capacity of single pile
Purpose；2nd, stake machine of the invention is to the adaptable of geology, and it effectively creeps into complex ground by pilot drill bit
Layer, extruding forms the diameter holes of screwed hole, and the pipe bit reaming extruding drilling that follows up again on this basis forms the light of enlarged footing
Hole, effectively reduces drilling resistance, improves the efficiency of construction of equipment；3rd, compact making hole, it is not necessary to be unearthed, efficiency high, energy-conservation
And environmental protection；4th, screw thread pile, adhesive force increase, bearing capacity of single pile is good；5th, the independent control to lifting speed is passed through, it is possible to achieve
Continuously or discontinuously or different lead screw thread pile-type.
Brief description of the drawings
Fig. 1 is the structure chart of double dynamical casing reamer drilling tool in the present invention.
View when Fig. 2 retracts for the first thread forming mechanism in the present invention.
View when Fig. 3 stretches out for the first thread forming mechanism in the present invention.
Fig. 4 is enlarged footing fourth type screw cast-in-place pile bore forming schematic diagram of the invention.
Fig. 5 is the schematic diagram of the enlarged footing fourth type screw cast-in-place pile formed in the present invention.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, present embodiments providing a kind of double dynamical casing reamer drilling tool, it includes drilling rod 2 and is sleeved on brill
Sleeve pipe 4 outside bar, the lower end of the drilling rod 2 is stretched out to be connected outside sleeve pipe 4 with pilot drill bit 6, and being provided with pilot drill bit 6 to stretch
The the first thread forming mechanism 7 gone out outside drill bit, is provided with pipe bit 5 in the lower end of sleeve pipe 4, is provided with pipe bit 5
The the second thread forming mechanism 8 that can be stretched out outside pipe bit, the drilling rod 2 passes through overhead power system drive 1, described sleeve pipe 4
Driven by middle part dynamical system 3, wherein, overhead power system 1 is arranged on the top of middle part dynamical system 3, during drilling rod 2 is passed through
It is connected after portion's dynamical system 3 and pipe bit with pilot drill bit.Wherein, the structure of first and second thread forming mechanism is identical, and it is tied
Composition is as Figure 2-3.
The drilling tool of the present invention is installed on on the multi purpose pile frame that pressurization or lifting power can be provided to drilling tool, in many work(
Independent pressurization dynamical system, pile frame traveling dynamical system can be provided with stake machine, drilling rod and sleeve pipe is carried in Multifunctional piling machine
Moved up and down under the stressed effect supplied along pile frame guide rod.
Present invention also offers a kind of enlarged footing fourth type screw cast-in-place pile pile making method, it can be specific by above-mentioned drilling tool
Implemented, as illustrated in figures 4-5, construction procedure is its construction method：
Overhead power system 1 starts, and rotates forward drilling rod 2, and the driving extruding of pilot drill bit 6 drilling forms fourth head unthreaded hole, then
Start the middle part drive sleeve drill bit 5 of dynamical system 3 follow-up extruding drilling enlarged footing unthreaded hole 9；
When reaching that enlarged footing unthreaded hole is deep, cut-out is applied to the pressurization power on pipe bit, stops pipe bit drilling, first
Drill bit 6 is led to continue to creep into until design stake depth, forms enlarged footing fourth type unthreaded hole 10；
Reversion lifting drilling rod, by extruding the first thread forming mechanism, and gives certain pressurization, keep lifting speed with
Speed during lower brill is basically identical, opens concrete pump, passes through drilling rod and the through stake of pilot drill bit center-aisle pump concrete
Bottom forms lower thread stake 12, starts middle part dynamical system when pilot drill bit reaches pipe bit and inverts and carried with same uniform velocity
Rise, extrude the second thread forming mechanism, top Screw Pile 11 is configured to by the second thread forming machine；
Until the grout outlet of pilot drill bit reaches that designed elevation stops pump concrete, the perfusion of enlarged footing fourth type screw thread is formed
Stake.Continue to lift up until pilot drill bit is completely exposed the construction that earth's surface completes this root enlarged footing fourth type screw cast-in-place pile, pile frame
Displacement proceeds by the construction of next pile.
Claims (1)
1. a kind of enlarged footing fourth type screw cast-in-place pile pile making method, using a kind of double dynamical casing reamer drilling tool, double dynamical sleeve pipe
Borehole-enlarging drilling tool includes being placed on casing drilling tool in drilling rod and the casing drilling tool being sleeved on outside drilling rod, the lower end of the drilling rod, and stretches out
Casing drilling tool is outer to be connected with pilot drill bit, and the first thread forming mechanism that can be stretched out outside drill bit, institute are provided with pilot drill bit
Casing drilling tool is stated including sleeve pipe and the lower end of sleeve pipe is provided with pipe bit, Sleeve drill can be stretched out by being provided with pipe bit
The second thread forming mechanism outside head, the drilling rod passes through middle part power by overhead power system drive, described sleeve pipe drilling tool
System drive, the overhead power system is arranged on the top of middle part dynamical system, and drilling rod passes through middle part dynamical system and sleeve pipe
It is connected after drill bit with pilot drill bit, it is characterised in that：It comprises the following steps：
Start overhead power system, drilling rod is just bored, driving pilot drill bit extruding drilling forms the path of screw thread stake holes, then opens
Dynamic middle part dynamical system, drive sleeve drill bit follow-up extruding drilling expands head bore；
After the depth for expanding head bore reaches requirement, stopping pipe bit being crept into, and pilot drill bit continues drilling until designing stake depth,
Form enlarged footing fourth type unthreaded hole；
Invert and lift drilling rod, open the ratchet of the first thread forming mechanism of extruding, be configured to down by the first thread forming machine
The big footpath of portion's screw thread stake holes；Concrete pump is opened simultaneously, passes through drilling rod and pilot drill bit center-aisle pump concrete；
When pilot drill bit is promoted to pipe bit, makes pipe bit reversion lifting, pass through the ratchet of the second thread forming mechanism
Extruding expands the big footpath of head bore formation top screw thread stake holes；
Until pilot drill bit is reached after setting absolute altitude, stop concrete pumping, so as to form enlarged footing fourth type screw cast-in-place pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510715737.6A CN105221076B (en) | 2015-10-28 | 2015-10-28 | A kind of enlarged footing fourth type screw cast-in-place pile pile making method and double dynamical casing reamer drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510715737.6A CN105221076B (en) | 2015-10-28 | 2015-10-28 | A kind of enlarged footing fourth type screw cast-in-place pile pile making method and double dynamical casing reamer drilling tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105221076A CN105221076A (en) | 2016-01-06 |
| CN105221076B true CN105221076B (en) | 2017-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510715737.6A Expired - Fee Related CN105221076B (en) | 2015-10-28 | 2015-10-28 | A kind of enlarged footing fourth type screw cast-in-place pile pile making method and double dynamical casing reamer drilling tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108049401A (en) * | 2018-01-26 | 2018-05-18 | 刘淼 | A kind of screw thread rammed bulb pile and its construction method |
| CN114111746B (en) * | 2021-11-23 | 2023-11-21 | 山东省地质测绘院 | Positioning robot for remote sensing mapping and method for keeping identification rod stable |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100549306C (en) * | 2006-07-31 | 2009-10-14 | 彭桂皎 | Screw rod stake, helical burr ram pile-forming equipment and one-tenth pile work method |
| CN101343877A (en) * | 2007-07-15 | 2009-01-14 | 梁毅 | Construction method of drilling pressure pouring concrete carrier pile |
| CN102434104A (en) * | 2011-09-30 | 2012-05-02 | 中铁科工集团有限公司 | Novel drill for construction of thread caisson pile and method for forming pile using same |
| CN203846486U (en) * | 2014-05-06 | 2014-09-24 | 广州市地平线岩土工程有限公司 | Integrated long spiral squeezing expanding cast-in-place pile forming device |
| CN204225758U (en) * | 2014-11-12 | 2015-03-25 | 中国石油集团川庆钻探工程有限公司 | Double-drill-bit drilling tool suitable for composite drilling |
| CN104878745A (en) * | 2015-06-14 | 2015-09-02 | 孔超 | Pile-forming device with double-helix drill rod and pile-forming method |
| CN205206742U (en) * | 2015-10-28 | 2016-05-04 | 中铁科工集团轨道交通装备有限公司 | Double dynamical casing reamer drilling tool |
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| CN105221076A (en) | 2016-01-06 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Weicheng Inventor after: Tong Biao Inventor after: Pan Guolei Inventor after: Zhang Junping Inventor after: Wang Wanzhi Inventor after: Wang Tao Inventor after: Liu Jiping Inventor after: Li Tong Inventor after: Xu Yong Inventor after: Yang Minghui Inventor after: Li Shengwei Inventor before: Zhou Weicheng Inventor before: Tong Biao Inventor before: Pan Guolei Inventor before: Zhang Junping Inventor before: Zhu Xuefeng Inventor before: Wang Tao Inventor before: Liu Jiping Inventor before: Li Tong Inventor before: Xu Yong Inventor before: Yang Minghui Inventor before: Li Shengwei |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20160721 Address after: 430223 Wuhan City, Jiangxia Province Economic Development Zone, Temple of happiness Industrial Park Applicant after: CHINA RAILWAY SCIENCE & INDUSTRY GROUP RAIL TRANSPORTATION EQUIPMENT Ltd. Applicant after: CREEC (CHONGQING) SURVEY, Design and Research Co.,Ltd. Address before: 430223 Wuhan City, Jiangxia Province Economic Development Zone, Temple of happiness Industrial Park Applicant before: CHINA RAILWAY SCIENCE & INDUSTRY GROUP RAIL TRANSPORTATION EQUIPMENT Ltd. |
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Granted publication date: 20170919 |