CN104153357A - Construction method of composite pile - Google Patents
Construction method of composite pile Download PDFInfo
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- CN104153357A CN104153357A CN201410423039.4A CN201410423039A CN104153357A CN 104153357 A CN104153357 A CN 104153357A CN 201410423039 A CN201410423039 A CN 201410423039A CN 104153357 A CN104153357 A CN 104153357A
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Abstract
A construction method of a composite pile comprises the steps of (1), sinking a steel sleeve into the center soil layer of a pile position in a vibrating mode or a hammering mode or a static pressure mode, wherein the diameter of the steel sleeve is larger than the diameter of a core pile by 10-80 cm, and the maximum length of the steel sleeve is 40 m; (2), taking out soil bodies in the steel sleeve or below the steel sleeve by a certain depth through a long auger or a rotary drilling rig or a grab bucket; (3), spraying cement paste and gas to the soil layer at the lower portion of the steel sleeve through a speed-variable agitator, agitating the soil and the cement paste to form uniform pasty cement soil at the same time and agitating the soil within the range of 1-3 meters at the pile tip repeatedly, wherein the number of times of vertical agitation is not smaller than 4; (4), implanting the rigid core pile into the steel sleeve in an inserting mode or a vibrating mode, wherein the pasty cement soil overflows and fills the portion between the rigid core pile and the steel sleeve in the implanting process of the rigid core pile, pulling out the steel sleeve before initial setting of the cement soil, and forming the composite pile after the pasty cement soil is hardened. According to the construction method, in the pile implanting process, mud discharging and soil squeezing effects are avoided.
Description
Technical field
The present invention relates to building foundation engineering field, relate in particular to the construction method of composite pile.
Background technology
The at present domestic open skin using is cement-soil, inner core is the construction method of the composite pile of high-strength tubular pile, can be divided into two kinds according to the mode that forms cement-soil: a kind of is boring whitewashing form formation cement-soil, as the quiet brill of East Zhejiang province, Ningbo building materials group invention is taken root in pile driving construction engineering method, the method of Chinese Patent Application No. 200510009711 disclosed a kind of prefabricating composite pile by drilling hole, another kind is that high-pressure rotary-spray or deep mixing method form cement-soil, a kind of composite pile as disclosed in Chinese Patent Application No. 200710113491 and construction method, and the construction method of the open core filling tubular pile cement composite foundation pile of Chinese patent CN102127910B.Above-mentioned two kinds of construction methods are replants into core stake from earth's surface starts to form soil cement slurry, inevitably produces superfluous water mud or soil compaction effect, causes the wasting of resources and environment pollution and environmental disruption.
Summary of the invention
Technical problem to be solved by this invention is: a kind of construction method of composite pile is provided, and this construction method does not produce mud emission and soil compaction effect can realize and planting time.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of construction method of composite pile, and described composite pile is the composite pile of outsourcing cement-soil interplantation rigid core stake, this construction method comprises the following steps:
(1) sink to steel sleeve by vibration or hammering or static pressure mode to subsoil in stake position, steel sleeve diameter is greater than core stake diameter 10-80cm, and steel sleeve thickness is to meet pile holes protecting wall requirement, and maximum length is 40m;
(2) use long spiral or rotary drilling rig or grab bucket to take out in steel sleeve or the soil body of the following certain depth of steel sleeve, this soil body degree of depth is by core pile length and the high co-controlling of core stake top mark;
(3) use variable-ratio mixer to steel sleeve bottom soil layer water-spray type slurry and gas, soil and cement paste are stirred into even pulpous state cement-soil simultaneously, a stake end Tu1-3mChu should repeat to stir, and stirs up and down number of times and is no less than 4 times;
(4) in steel sleeve, implant rigid core stake by insertion or mode of vibration, while implanting rigid core stake, the filling of pulpous state cement-soil overflow, between rigid core stake and steel sleeve, was extracted steel sleeve before cement-soil initial set, formation composite pile after the sclerosis of pulpous state cement-soil.
The present invention has following beneficial effect: the present invention is dry construction, while planting, does not produce mud emission and soil compaction effect, and core stake is not corroded by underground water, the long 70m that exceedes of stake, and stake end becomes silted up without heavy, and bearing capacity of single pile is high; When construction, pile body is not produced to any mechanical damage, speed of application is fast, and efficiency of construction significantly improves, and saves reinforcing bar and concrete, and cost reduces more than 20%.Be particularly suitable for the Foundation Design of China coast city soft foundation.
Below in conjunction with the drawings and the specific embodiments, the invention will be further described.
Brief description of the drawings
Fig. 1 is the generalized section of one embodiment of the invention composite pile.
Marginal data: 1. basement bottom board, 2. layer of sand, 3. cushion cap, 4. n joint pile for prestressed pipe (n joint refers to final section), 5. mud, 6. second section pile for prestressed pipe, 7. first segment pile for prestressed pipe, 8. argillic horizon, 9. boulder bed, 10. cement-soil.
Detailed description of the invention
Embodiment as shown in Figure 1, composite pile of the present invention is outsourcing cement-soil interplantation pile for prestressed pipe, the present embodiment adopts more piece pile for prestressed pipe.
Its construction method is as follows:
(1), under crane is auxiliary, with vibrating hammer, by diameter of phi 900mm, length is 20m, the steel sleeve that wall thickness is 16mm sink to mud 5. in.
(2), take out the soil body in steel sleeve with rotary drilling rig, steel sleeve is stayed and in soil layer, is played retaining wall effect.
(3) head of the cement mixing pile machine of variable-ratio being saved to length is that the drilling rod of 20m was put to the pipe end from steel sleeve, after extension bar again to bottom soil layer low rate mixing, and to steel sleeve bottom soil layer injected water mud and gas, cement mixing content is 25%, cement paste water/binder ratio is 1.0, and air pressure is controlled at 3～5MPa scope.An absolute altitude at the bottom of being stirred to, high-speed stirred injected water mud and gas while then rising, the every round trip of stake end 1m scope stirs once again, stirs up and down 4 times, forms even pulpous state cement-soil.Above-mentioned cement mixing content is 25% to be the soil layer for the present embodiment, different classes of soil layer, and cement mixing content difference, is generally 15%-40%.The rotating speed of cement mixer is set according to Seines types.
(4), after stirring finishes, immediately with crane successively by first segment pile for prestressed pipe 7., second section pile for prestressed pipe 6. and n joint pile for prestressed pipe 4. order implant pile tube PHC500A125C80, the long 49.0m of stake, pulpous state cement-soil overflow filling are between pile tube and steel sleeve, before cement-soil initial set, extract steel sleeve with vibrating hammer, cement-soil forms composite pile of the present invention after 10. hardening.
Rigid core stake in the present embodiment is not limited to pile for prestressed pipe, also comprises precast square pile, piling bar, and wherein pile tube comprises steel pipe pile and shaped steel.
Claims (1)
1. a construction method for composite pile, described composite pile is the composite pile of outsourcing cement-soil interplantation rigid core stake, it is characterized in that: this construction method comprises the following steps:
(1) sink to steel sleeve by vibration or hammering or static pressure mode to subsoil in stake position, steel sleeve diameter is greater than core stake diameter 10-80cm, and steel sleeve thickness is to meet pile holes protecting wall requirement, and maximum length is 40m;
(2) use long spiral or rotary drilling rig or grab bucket to take out in steel sleeve or the soil body of the following certain depth of steel sleeve, this soil body degree of depth is by core pile length and the high co-controlling of core stake top mark;
(3) use variable-ratio mixer to steel sleeve bottom soil layer water-spray type slurry and gas, soil and cement paste are stirred into even pulpous state cement-soil simultaneously, a stake end Tu1-3mChu should repeat to stir, and stirs up and down number of times and is no less than 4 times;
(4) in steel sleeve, implant rigid core stake by insertion or mode of vibration, while implanting rigid core stake, the filling of pulpous state cement-soil overflow, between rigid core stake and steel sleeve, was extracted steel sleeve before cement-soil initial set, formation composite pile after the sclerosis of pulpous state cement-soil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410423039.4A CN104153357A (en) | 2014-08-26 | 2014-08-26 | Construction method of composite pile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410423039.4A CN104153357A (en) | 2014-08-26 | 2014-08-26 | Construction method of composite pile |
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| CN104153357A true CN104153357A (en) | 2014-11-19 |
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| CN201410423039.4A Pending CN104153357A (en) | 2014-08-26 | 2014-08-26 | Construction method of composite pile |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104404838A (en) * | 2014-11-20 | 2015-03-11 | 中铁八局集团有限公司 | Collapsed loess subgrade base treatment method for railway with speed more than 200km |
| CN105714834A (en) * | 2016-03-01 | 2016-06-29 | 江苏东合南岩土科技股份有限公司 | Construction process for grouting H-shaped steel pile after pre-forming hole in hard stratum |
| CN106223329A (en) * | 2016-08-08 | 2016-12-14 | 福建永强岩土股份有限公司 | A kind of construction method of full-sleeve rotary churning pile |
| CN109024557A (en) * | 2018-08-09 | 2018-12-18 | 中国兵器工业北方勘察设计研究院有限公司 | A kind of drill-pouring prefabricated pile and construction method |
| CN110331742A (en) * | 2019-07-01 | 2019-10-15 | 浙江大学 | It is a kind of to test the quiet experimental rig and test method for boring and taking root in a pile-soil interface frictional behavior |
| CN112726582A (en) * | 2021-01-08 | 2021-04-30 | 中国建筑第二工程局有限公司 | PHC cement soil mixing composite pile construction process |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101148875A (en) * | 2007-11-05 | 2008-03-26 | 山东省机械施工有限公司 | Composite pile and construction method thereof |
| CN201125386Y (en) * | 2007-11-05 | 2008-10-01 | 山东省机械施工有限公司 | Composite pile |
| CN101942830A (en) * | 2010-08-19 | 2011-01-12 | 上海强劲基础工程有限公司 | Combined concrete soil pile with core pile and construction method as well as construction device thereof |
| CN102900079A (en) * | 2011-07-25 | 2013-01-30 | 中冶交通工程技术有限公司 | High-frequency hydraulic vibratory construction method for cement-soil core-inserted combined pile |
| CN102900083A (en) * | 2012-09-05 | 2013-01-30 | 上海中技桩业股份有限公司 | Soil-squeezing-free precast pile grouting anticorrosive embedding construction method |
| CN103015431A (en) * | 2012-12-04 | 2013-04-03 | 北京建材地质工程公司 | Foundation pit supporting method for manual dig-hole cement-soil steel pile |
| JP2013133628A (en) * | 2011-12-26 | 2013-07-08 | Asahi Kasei Construction Materials Co Ltd | Connection jig and construction method of composite pile |
-
2014
- 2014-08-26 CN CN201410423039.4A patent/CN104153357A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101148875A (en) * | 2007-11-05 | 2008-03-26 | 山东省机械施工有限公司 | Composite pile and construction method thereof |
| CN201125386Y (en) * | 2007-11-05 | 2008-10-01 | 山东省机械施工有限公司 | Composite pile |
| CN101942830A (en) * | 2010-08-19 | 2011-01-12 | 上海强劲基础工程有限公司 | Combined concrete soil pile with core pile and construction method as well as construction device thereof |
| CN102900079A (en) * | 2011-07-25 | 2013-01-30 | 中冶交通工程技术有限公司 | High-frequency hydraulic vibratory construction method for cement-soil core-inserted combined pile |
| JP2013133628A (en) * | 2011-12-26 | 2013-07-08 | Asahi Kasei Construction Materials Co Ltd | Connection jig and construction method of composite pile |
| CN102900083A (en) * | 2012-09-05 | 2013-01-30 | 上海中技桩业股份有限公司 | Soil-squeezing-free precast pile grouting anticorrosive embedding construction method |
| CN103015431A (en) * | 2012-12-04 | 2013-04-03 | 北京建材地质工程公司 | Foundation pit supporting method for manual dig-hole cement-soil steel pile |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104404838A (en) * | 2014-11-20 | 2015-03-11 | 中铁八局集团有限公司 | Collapsed loess subgrade base treatment method for railway with speed more than 200km |
| CN104404838B (en) * | 2014-11-20 | 2016-06-15 | 中铁八局集团有限公司 | The above railway collapsible loess subgrade substrate treating method of speed 200km |
| CN105714834A (en) * | 2016-03-01 | 2016-06-29 | 江苏东合南岩土科技股份有限公司 | Construction process for grouting H-shaped steel pile after pre-forming hole in hard stratum |
| CN105714834B (en) * | 2016-03-01 | 2017-11-28 | 江苏东合南岩土科技股份有限公司 | A kind of construction technology of hardpan preexisting hole grouting behind shaft or drift lining H profile steel stake |
| CN106223329A (en) * | 2016-08-08 | 2016-12-14 | 福建永强岩土股份有限公司 | A kind of construction method of full-sleeve rotary churning pile |
| CN109024557A (en) * | 2018-08-09 | 2018-12-18 | 中国兵器工业北方勘察设计研究院有限公司 | A kind of drill-pouring prefabricated pile and construction method |
| CN110331742A (en) * | 2019-07-01 | 2019-10-15 | 浙江大学 | It is a kind of to test the quiet experimental rig and test method for boring and taking root in a pile-soil interface frictional behavior |
| CN110331742B (en) * | 2019-07-01 | 2023-11-07 | 浙江大学 | Test device and method for testing friction characteristics of pile soil contact surface of static drilling root planting pile |
| CN112726582A (en) * | 2021-01-08 | 2021-04-30 | 中国建筑第二工程局有限公司 | PHC cement soil mixing composite pile construction process |
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Application publication date: 20141119 |