CN104695433A - Construction method of bituminous coating pile in sandy foundation - Google Patents
Construction method of bituminous coating pile in sandy foundation Download PDFInfo
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- CN104695433A CN104695433A CN201510113469.0A CN201510113469A CN104695433A CN 104695433 A CN104695433 A CN 104695433A CN 201510113469 A CN201510113469 A CN 201510113469A CN 104695433 A CN104695433 A CN 104695433A
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- steel sleeve
- soil layer
- bituminous coating
- stake
- construction method
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Abstract
The invention discloses a construction method of a bituminous coating pile in a sandy foundation. The construction method is characterized in that the bituminous coating pile is hammered and driven under the protection action of a steel sleeve. The construction method specially comprises the construction steps that the steel sleeve penetrates through a backfill sandy soil layer and is driven into a soft soil layer laid at the bottom of the sandy soil layer; the bituminous coating pile in the steel sleeve is driven into a bearing stratum, and the steel sleeve is clamped, pulled and taken out through a vibratory hammer. Compared with the prior art, the construction method has the advantages that a bituminous coating is completely protected, the effect that negative friction is reduced through the bituminous coating is fully achieved, operation is easy, the project quality is reliable, the adaptability is high, the construction method is particularly applicable to a pile foundation project with the soft soil layer at the bottom and a thick backfill sandy foundation on the top in a covering mode, the problem of the negative friction can be effectively solved, and the construction quality of the pile foundation project is improved.
Description
Technical field
The present invention relates to pile foundation engineering technique field, the construction method of specifically a kind of sandy foundation medium pitch coating stake.
Background technology
At present, bituminous coating stake is adopted to be very ripe technology to reduce the impact of negative frictional resistance in pile foundation engineering.But the bituminous coating stake of routine is all use in mucky soil or the such soft foundation of cohesive soil, because the soil property penetrating soil layer is weak when directly beating bituminous coating stake, soil layer destroys relatively little to bituminous coating and is left in the basket always.Along with the needs of social development; Scale Sea Reclamation Project increases gradually; geological conditions becomes increasingly complex; often can run into top be thicker backfill coarse sand or rock ballast soil layer and be original ooze layer below; adopt when directly beating bituminous coating stake in this case; the back fill course on top is not just allowed to ignore to the destruction of bituminous coating, can affect the reduction of negative friction like this.
The bituminous coating stake of prior art be not suitable for auger ground and on cover the pile foundation engineering of thicker backfill sandy soil layer, effectively can not solve negative friction, affect the construction quality of pile foundation engineering.
Summary of the invention
The construction method of a kind of sandy foundation medium pitch coating stake provided for prior art deficiency is provided; adopt the bituminous coating pile driving construction under steel sleeve protection; to bituminous coating protection completely; the effect that it reduces negative friction can be given full play to; simple to operate, workmanship is reliable, strong adaptability, be especially applicable to auger ground and on cover the pile foundation engineering of thicker backfill Sandy Soil Foundation; effectively can solve negative friction, improve the construction quality of pile foundation.
The object of the present invention is achieved like this: the construction method of a kind of sandy foundation medium pitch coating stake; be characterized in adopting steel sleeve protection that bituminous coating stake is penetrated backfill sandy soil layer; Soft Soil Layer sleeping under being driven into sandy soil layer, Specific construction comprises the following steps:
(1), steel sleeve is squeezed into
Adopt vibrating hammer that steel sleeve is penetrated backfill sandy soil layer, Soft Soil Layer sleeping under being driven into sandy soil layer, then remove the sand in steel sleeve.
(2) bituminous coating stake, is squeezed into
In steel sleeve, put into the bituminous coating stake of bottom without pitch section, the stake of hammering bituminous coating is squeezed into bearing stratum, and piling employing penetration control is gone forward side by side, and rower is high checks.
(3), steel sleeve is extracted
Cut off stake top after bituminous coating sunk pile puts in place, then adopt vibrating hammer folder to pull out and steel sleeve is taken out.
The present invention compared with prior art has to bituminous coating protection completely; the effect that it reduces negative friction can be given full play to; simple to operate, workmanship is reliable; strong adaptability; especially be applicable to auger ground and on cover the pile foundation engineering of thicker backfill Sandy Soil Foundation; effectively can solve negative friction, improve the construction quality of pile foundation.
Accompanying drawing explanation
Fig. 1 is the invention process illustration.
Detailed description of the invention
Embodiment 1
Accompanying drawings 1, for certain newly-built runway engineering, the invention will be further described, and this project geological conditions is the backfill medium coarse sand soil layer 4 of the thick about 25m in top, the Soft Soil Layer 5 of lower sleeping thick about 6m, runway pile foundation adopts the bituminous coating PHC pile tube 2 of Φ 600, and its Specific construction step is as follows:
(1), steel sleeve is squeezed into
The steel sleeve 1 of Φ 700, wall thickness 10mm is selected after site localization, vibrating hammer is adopted steel sleeve 1 merogenesis immersed tube to be penetrated the backfill medium coarse sand soil layer 4 of thick about 25m, be driven in the sleeping Soft Soil Layer 5 of backfill medium coarse sand soil layer 4 times, then remove the sand in steel sleeve 1.
(2) bituminous coating stake, is squeezed into
The bituminous coating PHC pile tube 2 of bottom without pitch section is put in steel sleeve 1, after waling PHC pile tube 2 with steel hoop, bituminous coating PHC pile tube 2 is put into steel sleeve 1 by anchor ear by crane, put into section by section, weld and straightening, after integrally welded PHC pile tube 2 being adjusted verticality with pile driver, hammer driven is to bearing stratum 6, and piling employing penetration control is gone forward side by side, and rower is high checks.
(3), steel sleeve is extracted
Cut off stake top after bituminous coating PHC pile tube 2 pile sinking puts in place, then adopt vibrating hammer folder to pull out and steel sleeve 1 is taken out.
The base of pile more than 100 related in this project rail beam within the scope of Soft Soil Layer is all constructed by above-mentioned steps, detects after whole pile foundation terminates through pile body large sstrain, and it reduces sidewall negative friction successful, meets design requirement completely.
More than just the present invention is further illustrated, and be not used to limit this patent, allly implements for the present invention's equivalence, within the right that all should be contained in this patent.
Claims (1)
1. a construction method for sandy foundation medium pitch coating stake, it is characterized in that adopting steel sleeve protection that bituminous coating stake is penetrated backfill sandy soil layer, Soft Soil Layer sleeping under being driven into sandy soil layer, Specific construction comprises the following steps:
(1), steel sleeve is squeezed into
Adopt vibrating hammer that steel sleeve is penetrated backfill sandy soil layer, Soft Soil Layer sleeping under being driven into sandy soil layer, then remove the sand in steel sleeve;
(2) bituminous coating stake, is squeezed into
In steel sleeve, put into the bituminous coating stake of bottom without pitch section, the stake of hammering bituminous coating is squeezed into bearing stratum, and piling employing penetration control is gone forward side by side, and rower is high checks;
(3), steel sleeve is extracted
Cut off stake top after bituminous coating sunk pile puts in place, then adopt vibrating hammer folder to pull out and steel sleeve is taken out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510113469.0A CN104695433A (en) | 2015-03-16 | 2015-03-16 | Construction method of bituminous coating pile in sandy foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510113469.0A CN104695433A (en) | 2015-03-16 | 2015-03-16 | Construction method of bituminous coating pile in sandy foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104695433A true CN104695433A (en) | 2015-06-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510113469.0A Pending CN104695433A (en) | 2015-03-16 | 2015-03-16 | Construction method of bituminous coating pile in sandy foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104695433A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107190762A (en) * | 2017-07-11 | 2017-09-22 | 中铁第四勘察设计院集团有限公司 | A kind of piling strtucture for reducing side friction |
| CN107447753A (en) * | 2017-07-10 | 2017-12-08 | 湖北长江清淤疏浚工程有限公司 | A kind of coating construction method waterborne for reducing the pile body force of negative friction |
| CN112095580A (en) * | 2020-08-14 | 2020-12-18 | 温州大学 | Precast pile in area corroded by chloride ions, preparation method of precast pile and construction method for reducing negative friction resistance of precast pile |
| CN114960726A (en) * | 2022-05-05 | 2022-08-30 | 青海黄河上游水电开发有限责任公司 | Be suitable for device that SBS modified asphalt of PHC pile foundation resisted to freeze and pull out |
| CN115075282A (en) * | 2022-05-05 | 2022-09-20 | 青海黄河上游水电开发有限责任公司 | Foamed cement heat-preservation anti-freezing-pulling device suitable for PHC pipe pile and manufacturing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078281A (en) * | 1992-05-08 | 1993-11-10 | 深圳市建筑科学中心 | Equipment for eliminating negative friction of pile foundation |
| GB2478362A (en) * | 2010-03-06 | 2011-09-07 | Shire Structures Ltd | A pile with a tube extending lengthwise of the pile |
-
2015
- 2015-03-16 CN CN201510113469.0A patent/CN104695433A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078281A (en) * | 1992-05-08 | 1993-11-10 | 深圳市建筑科学中心 | Equipment for eliminating negative friction of pile foundation |
| GB2478362A (en) * | 2010-03-06 | 2011-09-07 | Shire Structures Ltd | A pile with a tube extending lengthwise of the pile |
Non-Patent Citations (1)
| Title |
|---|
| 黄海云: "砂性场地沥青涂层桩的设计与施工", 《建筑施工》, vol. 34, no. 9, 30 September 2012 (2012-09-30) * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107447753A (en) * | 2017-07-10 | 2017-12-08 | 湖北长江清淤疏浚工程有限公司 | A kind of coating construction method waterborne for reducing the pile body force of negative friction |
| CN107190762A (en) * | 2017-07-11 | 2017-09-22 | 中铁第四勘察设计院集团有限公司 | A kind of piling strtucture for reducing side friction |
| CN112095580A (en) * | 2020-08-14 | 2020-12-18 | 温州大学 | Precast pile in area corroded by chloride ions, preparation method of precast pile and construction method for reducing negative friction resistance of precast pile |
| CN114960726A (en) * | 2022-05-05 | 2022-08-30 | 青海黄河上游水电开发有限责任公司 | Be suitable for device that SBS modified asphalt of PHC pile foundation resisted to freeze and pull out |
| CN115075282A (en) * | 2022-05-05 | 2022-09-20 | 青海黄河上游水电开发有限责任公司 | Foamed cement heat-preservation anti-freezing-pulling device suitable for PHC pipe pile and manufacturing method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150610 |