CN1309210A - Technology for constructing drilled and cast-in-situ pile with protective clay wall - Google Patents
Technology for constructing drilled and cast-in-situ pile with protective clay wall Download PDFInfo
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- CN1309210A CN1309210A CN 01109971 CN01109971A CN1309210A CN 1309210 A CN1309210 A CN 1309210A CN 01109971 CN01109971 CN 01109971 CN 01109971 A CN01109971 A CN 01109971A CN 1309210 A CN1309210 A CN 1309210A
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- cohesive soil
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Abstract
A technology for constructing the drilled and cast-in-situ pile with protecting clay wall includes drilling, pulling up drilling rod, constructing the protecting wall, drilling again, and repeating said steps several times. Said constructing the protecting wall is to load clay into hole. Its advantages are preventing collapse of hole wall, high hole quality, low cost, and high construction speed.
Description
The present invention relates to a kind of drill-pouring pile forming technology.
Construction drill castinplace pile in sand pebble layer, its construction Difficulties is the pore-forming difficulty, is easy to generate the hole of collapsing.Though can creep into spiral drilling machine, if do not adopt wall protecting method, then drilling rod is proposed after because sand ovum layer is inviscid, boring can be caved in immediately.Existing construction technology adopts cement paste dado, wet work, cause the job site dirty and messy easily, cement material cost height need be acquired again and stir and conveying machinery, has not only improved construction costs, but also delayed the duration, it is excessive that human and material resources are dropped into, and causes waste, and this technical barrier is badly in need of solving.
The purpose of this invention is to provide a kind of technology for constructing drilled and cast-in-situ pile with protective clay wall, prevent hole wall collapse, and reduce construction costs, the reduction of erection time, improve construction environment, improve hole quality.
Technology for constructing drilled and cast-in-situ pile with protective clay wall method of the present invention is: hole, extract under drilling rod, retaining wall, the original position and bore, creep into, extract drilling rod, retaining wall, circulation several times, pore-forming again, it is characterized in that: its retaining wall and again retaining wall be to throw the cohesive soil hand-hole.
Above-mentioned cohesive soil comprises: cohesive soil, inferior cohesive soil or mix the cohesive soil of waste residue.
Above-mentioned cohesive soil is the plasticity state.
The method of above-mentioned input cohesive soil hand-hole is with manually or with machinery dropping into.
The technology for constructing drilled and cast-in-situ pile with protective clay wall step:
(1), boring;
(2), extract drilling rod;
(3), throw the cohesive soil hand-hole;
(4), bore under the original position;
(5), creep into again;
(6), extract drilling rod;
(7), throw the cohesive soil hand-hole again;
(8), the circulation several times, pore-forming.
Mechanism of the present invention: after clay dropped into, the drilling rod rotation drove the bit blades rotation, and cohesive soil is extruded, form the mud wall at hole wall, in the drilling rod rotary course, the granule sandy gravel is formed extruding simultaneously, thereby press to hole wall and make hole Zhou Mishi, reach the pore-forming purpose.
Advantage of the present invention: prevent hole wall collapse, dry construction, method is easy, and material is inexpensive, be easy to get, and need not acquire equipment, improves construction environment, improves hole quality, reduces construction costs, both saves money, and is laborsaving again, and speed of application is fast, the reduction of erection time.This technology is applicable in the hole depth scope to be the geological conditions of the sand pebble layer of few water.
Below in conjunction with embodiment the present invention is done detailed description:
Embodiment: after march into the arena earlier during construction unwrapping wire, the levelling, the displaced spirals rig, the drilling rod verticality is adjusted in drill bit stake position, finishes technology in place; In the rod boring process, because boring is in the sand pebble layer all the time, drilling rod is easily beated, shaking phenomenon, influences into hole perpendicularity, and therefore, this process must tightly be monitored with transit, and sets up control system, accomplishes in time to be controlled to hole perpendicularity.Creep into about 5 meters, extract drilling rod, Xiang Kongzhong drops into fat clay, and cohesive soil perusal hand is pinched into piece, lands and scatters.Then drilling rod is moved and move, restart to creep into, be drilled into about 7 meters to the foramen primum position.Extract drilling rod again, in the hole, drop into fat clay again, creep into again.The circulation several times reach designing requirement until hole depth.
During construction, produce when preventing that drilling rod from running into big particle diameter beat, stake biased from, the drilling rod of common spiral drilling machine needs to transform, and drilling rod is increased the weight of.Cohesive soil can comprise: cohesive soil, inferior cohesive soil or mix the cohesive soil of flyash equal industrial residue.The water content of retaining wall cohesive soil should be in the plasticity scope, and the perusal hand is pinched into piece, and landing scatters gets final product.
Claims (4)
1, a kind of technology for constructing drilled and cast-in-situ pile with protective clay wall, its technological process is: hole, extract under drilling rod, retaining wall, the original position and bore, creep into, extract drilling rod, retaining wall, circulation several times, pore-forming again, it is characterized in that: its retaining wall and again retaining wall be to throw the cohesive soil hand-hole.
2, technology for constructing drilled and cast-in-situ pile with protective clay wall according to claim 1 is characterized in that: described cohesive soil comprises: cohesive soil, inferior cohesive soil or mix the cohesive soil of waste residue.
3, technology for constructing drilled and cast-in-situ pile with protective clay wall according to claim 1 is characterized in that: described cohesive soil is the plasticity state.
4, technology for constructing drilled and cast-in-situ pile with protective clay wall according to claim 1 is characterized in that: the method for described input cohesive soil hand-hole is with manually or with machinery dropping into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01109971 CN1309210A (en) | 2001-03-28 | 2001-03-28 | Technology for constructing drilled and cast-in-situ pile with protective clay wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01109971 CN1309210A (en) | 2001-03-28 | 2001-03-28 | Technology for constructing drilled and cast-in-situ pile with protective clay wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1309210A true CN1309210A (en) | 2001-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01109971 Pending CN1309210A (en) | 2001-03-28 | 2001-03-28 | Technology for constructing drilled and cast-in-situ pile with protective clay wall |
Country Status (1)
| Country | Link |
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| CN (1) | CN1309210A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061670A (en) * | 2013-01-06 | 2013-04-24 | 中国建筑第六工程局有限公司 | Structure for preventing collapse of boreholes in pebble bed and construction method thereof |
| CN108035340A (en) * | 2017-12-19 | 2018-05-15 | 中冶成都勘察研究总院有限公司 | A kind of sandy silt soil stratum construction process of bored concrete pile of low temperature high-moisture percentage |
| CN108797566A (en) * | 2018-06-20 | 2018-11-13 | 河南竣祥岩土工程有限公司 | Bored concrete pile retaining wall material and preparation method thereof and pouring pile hole construction technology in a kind of miscellaneous fill |
-
2001
- 2001-03-28 CN CN 01109971 patent/CN1309210A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061670A (en) * | 2013-01-06 | 2013-04-24 | 中国建筑第六工程局有限公司 | Structure for preventing collapse of boreholes in pebble bed and construction method thereof |
| CN103061670B (en) * | 2013-01-06 | 2015-03-25 | 中国建筑第六工程局有限公司 | Structure for preventing collapse of boreholes in pebble bed and construction method thereof |
| CN108035340A (en) * | 2017-12-19 | 2018-05-15 | 中冶成都勘察研究总院有限公司 | A kind of sandy silt soil stratum construction process of bored concrete pile of low temperature high-moisture percentage |
| CN108797566A (en) * | 2018-06-20 | 2018-11-13 | 河南竣祥岩土工程有限公司 | Bored concrete pile retaining wall material and preparation method thereof and pouring pile hole construction technology in a kind of miscellaneous fill |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |