CN1162590C - Process for drilling hole and soil taking and transplanting pile for steel reinforced concrete prefabricated pile - Google Patents
Process for drilling hole and soil taking and transplanting pile for steel reinforced concrete prefabricated pile Download PDFInfo
- Publication number
- CN1162590C CN1162590C CNB011373296A CN01137329A CN1162590C CN 1162590 C CN1162590 C CN 1162590C CN B011373296 A CNB011373296 A CN B011373296A CN 01137329 A CN01137329 A CN 01137329A CN 1162590 C CN1162590 C CN 1162590C
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- Prior art keywords
- pile
- reinforced concrete
- precast reinforced
- concrete piles
- boring
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Abstract
The present invention relates to a technology for sinking a steel reinforced concrete prefabricated pile, which comprises the following steps: a soil taking process and a hole drilling process are carried out by a screw drilling machine on a pile position before a pile pressing process; the steel reinforced concrete prefabricated pile is planted into a drilled hole by a pile pressing machine, the pile pressing process is started, and the end of the pile is pressed into designed depth. The present invention widens the pile pressing condition and the use range of the steel reinforced concrete prefabricated pile and greatly reduces the soil squeezing problems of the steel reinforced concrete prefabricated pile in the pile pressing process, and the present invention also ensures the safety of facilities, such as periphery buildings, roads, pipe lines, etc., and greatly reduces the expense of soil squeezing protection.
Description
Affiliated technical field
The present invention relates to a kind of pile-sinking method of precast reinforced concrete piles.
Background technology
Advantages such as precast reinforced concrete piles is good with its pile quality, and job practices is simple, and workmanship guarantees that easily environment pollution is little, and construction costs is low are the first-selected stake types of coastal soft foundation always.But (compression coefficient of the soil body is greater than 0.3Mpa generally only to be applicable to the mucky soil body and the clay matter soil body for traditional pile pressing method (paddle type mill, static(al) are embraced pressure and roof pressure method etc.)
-1), and (compression coefficient is not more than 0.2Mpa to the sand of tool low compressibility, gravel, boulder bed etc.
-1) be to be difficult to make the stake end to pass through the sandstone interlayer.Many engineerings have to adopt cost height, environment pollution is big, workmanship is difficult to guarantee bored pile.This has just limited the range of application of precast reinforced concrete piles to a certain extent.
Summary of the invention
The objective of the invention is to overcome the above-mentioned defective of prior art, a kind of piling method of planting of precast reinforced concrete piles is provided, this method can make precast reinforced concrete piles penetrate thin sand, gravel, boulder bed, enters into thicker sand, gravel, boulder bed and as bearing stratum.
Method of the present invention is as follows: earlier before piling on the stake position with the spiral drilling machine boring of fetching earth, this aperture, hole is than the little 10-30mm in stake footpath, with pile press precast reinforced concrete piles is implanted to the Kong Weizhong that has bored then, the beginning piling makes the stake end be pressed into projected depth.
Advantage of the present invention is as follows:
1, solves the piling difficulty of precast reinforced concrete piles in sand, gravel, boulder bed, the piling degree of depth is greatly improved (piling degree of depth maximum of the present invention can greater than 70 meters), widened the piling condition and the scope of application of precast reinforced concrete piles.
2, owing to adopted prebored hole to fetch earth, reduce the soil compaction problem of precast reinforced concrete piles in the piling process significantly, guaranteed the safety of surrounding buildings thing and facilities such as road and pipeline, significantly reduced the spending of soil compaction protection expense.
The specific embodiment
Further illustrate particular content of the present invention below in conjunction with embodiment.
Prebored hole equipment adopts KD-1500 type suspension type spiral drilling machine in the present embodiment, and this rig walking is convenient, and construction is flexible, and drilling depth can reach about 50M, the efficient height, and the boring verticality easily guarantees, is particularly suitable for the boring of sand, gravel, boulder bed.Boring method adopts opening-closing type awl auger bucket type drill bit to fetch earth and creeps into, and injects mud off in the aperture, requires mud balance between 1.05-1.5, and present embodiment adopts best proportion 1.2, and mud viscosity is greater than 30S.The diameter of boring is less than stake footpath 10-30CM, and present embodiment adopts optimum size 15CM.The degree of depth of boring is undertaken by designing requirement.The central point of boring must be the central point of stake position.The deviation proportion of boring must be less than 5%.After boring is finished precast reinforced concrete piles being aimed at boring is pressed into pile body in the boring by pile press.
Claims (8)
1, a kind of pile-sinking method of precast reinforced concrete piles, it is characterized in that: method is as follows: earlier before piling on the stake position with the spiral drilling machine boring of fetching earth, with pile press precast reinforced concrete piles is implanted to the Kong Weizhong that has bored then, the beginning piling makes the stake end be pressed into projected depth.
2, the pile-sinking method of a kind of precast reinforced concrete piles according to claim 1 is characterized in that: boring method adopts opening-closing type awl auger bucket type drill bit to fetch earth and creeps into.
3, the pile-sinking method of a kind of precast reinforced concrete piles according to claim 1 is characterized in that: the diameter of boring is less than stake footpath 10-30CM.
4, the pile-sinking method of a kind of precast reinforced concrete piles according to claim 1 is characterized in that: inject mud off in the aperture, require mud balance between 1.05-1.5, mud viscosity is greater than 30S.
5, the pile-sinking method of a kind of precast reinforced concrete piles according to claim 1 is characterized in that: the deviation proportion of boring is less than 5%.
6, the pile-sinking method of a kind of precast reinforced concrete piles according to claim 1 is characterized in that: prebored hole equipment adopts KD-1500 type suspension type spiral drilling machine.
7, the pile-sinking method of a kind of precast reinforced concrete piles according to claim 3 is characterized in that: the diameter of boring is less than stake footpath 15CM.
8, the pile-sinking method of a kind of precast reinforced concrete piles according to claim 4 is characterized in that: mud balance is 1.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011373296A CN1162590C (en) | 2001-11-30 | 2001-11-30 | Process for drilling hole and soil taking and transplanting pile for steel reinforced concrete prefabricated pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011373296A CN1162590C (en) | 2001-11-30 | 2001-11-30 | Process for drilling hole and soil taking and transplanting pile for steel reinforced concrete prefabricated pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1352340A CN1352340A (en) | 2002-06-05 |
| CN1162590C true CN1162590C (en) | 2004-08-18 |
Family
ID=4674133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011373296A Expired - Fee Related CN1162590C (en) | 2001-11-30 | 2001-11-30 | Process for drilling hole and soil taking and transplanting pile for steel reinforced concrete prefabricated pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1162590C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493452A (en) * | 2011-11-30 | 2012-06-13 | 蔡嘉明 | Grouting pile-grafting construction method and equipment |
| CN103628480A (en) * | 2012-08-27 | 2014-03-12 | 上海中技桩业股份有限公司 | Construction method and device for guide displacement pressure precast pile |
| CN103174139A (en) * | 2013-04-16 | 2013-06-26 | 合肥建工集团有限公司 | Construction technology capable of inserting pile through gravel bed via lead hole |
| CN105040699A (en) * | 2015-08-14 | 2015-11-11 | 四川省建筑科学研究院 | Drilling pile planting method |
-
2001
- 2001-11-30 CN CNB011373296A patent/CN1162590C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1352340A (en) | 2002-06-05 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |