CN107542084A - Hole pile making method is drawn in triple-pipe high pressure jet grouting stake under rubble, cobble geological environment - Google Patents
Hole pile making method is drawn in triple-pipe high pressure jet grouting stake under rubble, cobble geological environment Download PDFInfo
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- CN107542084A CN107542084A CN201610467477.XA CN201610467477A CN107542084A CN 107542084 A CN107542084 A CN 107542084A CN 201610467477 A CN201610467477 A CN 201610467477A CN 107542084 A CN107542084 A CN 107542084A
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Abstract
The present invention relates to pile foundation construction.Hole pile making method is drawn in triple-pipe high pressure jet grouting stake under rubble, cobble geological environment, and it includes:Step 1, hole machinery is drawn using specialty and carries out drawing hole, rubble stratum or pebble layer is met and very likely suspends at collapse hole；Step 2, steel pile casting is transferred, draws hole again, only carried out local steel pile casting retaining wall on rubble stratum or pebble layer, make drilling not collapse hole；Step 3, draw hole to hole depth is designed, remove drilling rod, transfer common thin wall type pvc pipe, be allowed to pass through metalling or boulder bed；Step 4, extract steel bushing, backward shift draw hole machinery；Step 5, churning machinery is in place, and after completing preparation, churning bar is transferred to bottom hole；Step 6, start water, the pipe churning of gas and water mud three, to churning bar lifting speed is reduced when rubble or pebble layer, under the high water pressure impact force effect more than 30MPa, thin wall type pvc pipe will be crashed to pieces.The present invention can the smooth pore-forming under such a geological environment.
Description
Technical field
The present invention relates to pile foundation construction, more particularly to triple-pipe high pressure jet grouting stake to draw hole pile making method.
Background technology
For triple-pipe high pressure jet grouting stake, due to its own process characteristic, need to draw hole by boring machine progress rotary churning pile in advance.And for compactness is smaller or grain composition is poor metalling, pebble layer, due to construction disturbance, draw and be easy to cause collapse hole during hole, cause follow-up churning bar can not reach predetermined design depth, in the process, if taking steel bushing used for geological prospecting to carry out collapse hole retaining wall, it is easy to cause follow-up churning pressure can not effectively be transferred to periphery Rock And Soil, further result in rotary churning pile undergauge or can not the quality problems such as pile, so as to influence pile body bearing capacity or water-stagnating effect.
The content of the invention
Present invention seek to address that drawbacks described above, there is provided hole pile making method is drawn in triple-pipe high pressure jet grouting stake under a kind of rubble, cobble geological environment.The present invention can the smooth pore-forming under such a geological environment.
To solve the above problems, hole pile making method is drawn in triple-pipe high pressure jet grouting stake under rubble of the present invention, cobble geological environment, it includes:
Step 1, according to Normal practice, hole machinery is drawn using specialty and carries out drawing hole, rubble stratum or pebble layer is met and very likely suspends at collapse hole；.
Step 2, steel pile casting is transferred, draws hole again, only carried out local steel pile casting retaining wall on rubble stratum or pebble layer, make drilling not collapse hole；
Step 3, draw hole to hole depth is designed, remove drilling rod, transfer common thin wall type pvc pipe, be allowed to pass through metalling or boulder bed；
Step 4, extract steel bushing, even if now collapse hole, thin wall type pvc pipe play retaining wall perforating action again, backward shift draw hole machinery；
Step 5, churning machinery is in place, and after slurry, mud jacking preparation are mixed in completion, churning bar is transferred to bottom hole；
Step 6, start water, the pipe churning of gas and water mud three, speed is lifted to churning bar is reduced when rubble or pebble layer, under the high water pressure impact force effect more than 30MPa; thin wall type pvc pipe will be crashed to pieces; so as to realize that cement slurry mixes with the effective of Rock And Soil in certain limit around drilling, form churning pile body.
Hole pile making method is drawn in triple-pipe high pressure jet grouting stake under described rubble, cobble geological environment, and the thin wall type pvc pipe diameter is less than steel bushing；And before formal implementation, need to testing determination in advance, it can be by 30MPa high hydraulic pressure impact comminution.
The present invention can the smooth pore-forming under rubble, cobble geological environment, be particularly suitable for triple-pipe high pressure jet grouting stake and intercepted water in basement process, improvement of soil nature, sealing etc., is widely used.The method of the present invention is simple and practical, and cost increase is humble.
Embodiment
Hole pile making method is drawn in triple-pipe high pressure jet grouting stake under rubble of the present invention, cobble geological environment, and it includes:
Step 1, according to Normal practice, hole machinery is drawn using specialty and carries out drawing hole, rubble stratum or pebble layer is met and very likely suspends at collapse hole；.
Step 2, steel pile casting is transferred, draws hole again, only can carried out local steel pile casting retaining wall on rubble stratum or pebble layer, make drilling not collapse hole；
Step 3, draw hole to hole depth is designed, remove drilling rod, transfer common thin wall type pvc pipe, be allowed to pass through metalling or boulder bed；
Step 4, extract steel bushing, even if now collapse hole, thin wall type pvc pipe play retaining wall perforating action again, backward shift draw hole machinery；
Step 5, churning machinery is in place, and after slurry, mud jacking preparation are mixed in completion, churning bar is transferred to bottom hole；
Step 6, start water, the pipe churning of gas and water mud three, speed is lifted to churning bar is reduced when rubble or pebble layer, under the high water pressure impact force effect more than 30MPa; thin wall type pvc pipe will be crashed to pieces; so as to realize that cement slurry mixes with the effective of Rock And Soil in certain limit around drilling, form churning pile body.
Hole pile making method is drawn in triple-pipe high pressure jet grouting stake under described rubble, cobble geological environment, and the thin wall type pvc pipe diameter is less than steel bushing；And before formal implementation, need to testing determination in advance, it can be by 30MPa high hydraulic pressure impact comminution.
Claims (2)
1. hole pile making method is drawn in triple-pipe high pressure jet grouting stake under rubble, cobble geological environment, it is characterised in that it includes:
Step 1, according to Normal practice, hole machinery is drawn using specialty and carries out drawing hole, rubble stratum or pebble layer is met and very likely suspends at collapse hole；
Step 2, steel pile casting is transferred, draws hole again, only carried out local steel pile casting retaining wall on rubble stratum or pebble layer, make drilling not collapse hole；
Step 3, draw hole to hole depth is designed, remove drilling rod, transfer common thin wall type pvc pipe, be allowed to pass through metalling or boulder bed；
Step 4, extract steel bushing, even if now collapse hole, thin wall type pvc pipe play retaining wall perforating action again, backward shift draw hole machinery；
Step 5, churning machinery is in place, and after slurry, mud jacking preparation are mixed in completion, churning bar is transferred to bottom hole；
Step 6, start water, the pipe churning of gas and water mud three, speed is lifted to churning bar is reduced when rubble or pebble layer, under the high water pressure impact force effect more than 30MPa; thin wall type pvc pipe will be crashed to pieces; so as to realize that cement slurry mixes with the effective of Rock And Soil in certain limit around drilling, form churning pile body.
2. hole pile making method is drawn in triple-pipe high pressure jet grouting stake under rubble according to claim 1, cobble geological environment, it is characterised in that the thin wall type pvc pipe diameter is less than steel bushing；And before formal implementation, need to testing determination in advance, it can be by 30MPa high hydraulic pressure impact comminution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610467477.XA CN107542084A (en) | 2016-06-24 | 2016-06-24 | Hole pile making method is drawn in triple-pipe high pressure jet grouting stake under rubble, cobble geological environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610467477.XA CN107542084A (en) | 2016-06-24 | 2016-06-24 | Hole pile making method is drawn in triple-pipe high pressure jet grouting stake under rubble, cobble geological environment |
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| CN107542084A true CN107542084A (en) | 2018-01-05 |
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| CN201610467477.XA Pending CN107542084A (en) | 2016-06-24 | 2016-06-24 | Hole pile making method is drawn in triple-pipe high pressure jet grouting stake under rubble, cobble geological environment |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107142931A (en) * | 2017-06-19 | 2017-09-08 | 中冶成都勘察研究总院有限公司 | A kind of jet grouting pile construction preexisting hole wall protecting method |
| CN108914940A (en) * | 2018-07-03 | 2018-11-30 | 上海勇创建设发展有限公司 | A kind of multiple superhigh pressure jetting grouting construction method of super-large diameter |
| CN108914938A (en) * | 2018-07-03 | 2018-11-30 | 上海勇创建设发展有限公司 | A kind of controlled diameter high pressure jet grouting construction method |
| CN108914939A (en) * | 2018-07-03 | 2018-11-30 | 上海勇创建设发展有限公司 | A kind of major diameter ultra-deep high pressure jet grouting construction method |
| CN110080214A (en) * | 2019-05-13 | 2019-08-02 | 上海智平基础工程有限公司 | A kind of construction method of oblique high-pressure rotary jet grouting pile |
| CN110409434A (en) * | 2019-06-25 | 2019-11-05 | 浙江省建工集团有限责任公司 | A kind of the high-pressure rotary jet grouting pile technique and its drill bit of combination pvc pipe |
| CN110453678A (en) * | 2019-07-30 | 2019-11-15 | 甘肃恒捷路桥养护科技有限公司 | A kind of method of high-pressure rotary jet grouting pile double pipe ruling by law reason highway in loess area sedimentation |
| CN110904957A (en) * | 2019-07-25 | 2020-03-24 | 北京中润宝成工程技术有限公司 | Construction method of large-diameter high-verticality jet grouting pile in gravel stratum |
| CN111733851A (en) * | 2020-07-02 | 2020-10-02 | 中国建筑第八工程局有限公司 | Construction method for jet grouting waterproof curtain under water-rich sandy gravel geological condition |
| CN111851479A (en) * | 2020-07-30 | 2020-10-30 | 陕西龙海新创基础工程有限公司 | Method for constructing immersed tube rammed cast-in-place pile in sand layer or gravel layer |
| CN112281826A (en) * | 2020-10-23 | 2021-01-29 | 北京中润宝成工程技术有限公司 | Construction method for forming pile by rotary spraying in ovoid gravel stratum |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5037242A (en) * | 1990-09-06 | 1991-08-06 | Nill A Joseph | Dock fender and shock absorber |
| CN204418184U (en) * | 2014-12-15 | 2015-06-24 | 青岛城建集团有限公司 | High-pressure rotary jet grouting pile double-jacket tube drilling construction device |
-
2016
- 2016-06-24 CN CN201610467477.XA patent/CN107542084A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5037242A (en) * | 1990-09-06 | 1991-08-06 | Nill A Joseph | Dock fender and shock absorber |
| CN204418184U (en) * | 2014-12-15 | 2015-06-24 | 青岛城建集团有限公司 | High-pressure rotary jet grouting pile double-jacket tube drilling construction device |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107142931A (en) * | 2017-06-19 | 2017-09-08 | 中冶成都勘察研究总院有限公司 | A kind of jet grouting pile construction preexisting hole wall protecting method |
| CN108914940A (en) * | 2018-07-03 | 2018-11-30 | 上海勇创建设发展有限公司 | A kind of multiple superhigh pressure jetting grouting construction method of super-large diameter |
| CN108914938A (en) * | 2018-07-03 | 2018-11-30 | 上海勇创建设发展有限公司 | A kind of controlled diameter high pressure jet grouting construction method |
| CN108914939A (en) * | 2018-07-03 | 2018-11-30 | 上海勇创建设发展有限公司 | A kind of major diameter ultra-deep high pressure jet grouting construction method |
| CN110080214A (en) * | 2019-05-13 | 2019-08-02 | 上海智平基础工程有限公司 | A kind of construction method of oblique high-pressure rotary jet grouting pile |
| CN110409434A (en) * | 2019-06-25 | 2019-11-05 | 浙江省建工集团有限责任公司 | A kind of the high-pressure rotary jet grouting pile technique and its drill bit of combination pvc pipe |
| CN110904957A (en) * | 2019-07-25 | 2020-03-24 | 北京中润宝成工程技术有限公司 | Construction method of large-diameter high-verticality jet grouting pile in gravel stratum |
| CN110453678A (en) * | 2019-07-30 | 2019-11-15 | 甘肃恒捷路桥养护科技有限公司 | A kind of method of high-pressure rotary jet grouting pile double pipe ruling by law reason highway in loess area sedimentation |
| CN111733851A (en) * | 2020-07-02 | 2020-10-02 | 中国建筑第八工程局有限公司 | Construction method for jet grouting waterproof curtain under water-rich sandy gravel geological condition |
| CN111851479A (en) * | 2020-07-30 | 2020-10-30 | 陕西龙海新创基础工程有限公司 | Method for constructing immersed tube rammed cast-in-place pile in sand layer or gravel layer |
| CN112281826A (en) * | 2020-10-23 | 2021-01-29 | 北京中润宝成工程技术有限公司 | Construction method for forming pile by rotary spraying in ovoid gravel stratum |
| CN112281826B (en) * | 2020-10-23 | 2021-11-09 | 北京中润宝成工程技术有限公司 | Construction method for forming pile by rotary spraying in ovoid gravel stratum |
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Application publication date: 20180105 |
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