CN106545010A - A kind of jet grouting pile construction method of close to buildings - Google Patents
A kind of jet grouting pile construction method of close to buildings Download PDFInfo
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- CN106545010A CN106545010A CN201510592266.4A CN201510592266A CN106545010A CN 106545010 A CN106545010 A CN 106545010A CN 201510592266 A CN201510592266 A CN 201510592266A CN 106545010 A CN106545010 A CN 106545010A
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- pile
- construction
- rotary churning
- jet grouting
- relief hole
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Abstract
The present invention relates to a kind of jet grouting pile construction method.A kind of construction method of neighbouring existing construction of structures rotary churning pile, it includes：Carry out test pile and determine relevant parameter, and reduce input rotary churning pile machine quantity on the premise of quality and duration is met as far as possible；Pile spacing >=6m that two stake machines are constructed simultaneously；Relief hole, the pressure release hole depth depth certain more than rotary churning pile are set on just to Construction of High Pressure Jet Grouting Pile path；Strengthen the monitoring of close to buildings during jet grouting pile construction；Relief hole can take mud off rig pore-forming, and in hole, provisional being put into is enclosed with steel reinforcement cage, bamboo cage of Dense mesh screen etc.；Periodically mud balance in sampling observation relief hole, generally between 1.1 ~ 1.2, is adjusted after mud balance goes beyond the scope immediately；After whole Construction of High Pressure Jet Grouting Pile terminate, the steel reinforcement cage in relief hole, bamboo cage are hung out, and using element soil or swelling earthen backfill, then cover dozen rotary churning pile closure.Impact of the effectively solving rotary churning pile mortar depositing construction of the present invention to close to buildings.
Description
Technical field
The present invention relates to pile foundation construction, more particularly to a kind of jet grouting pile construction method.
Background technology
In order to improve land use rate to greatest extent, many newly-built or reconstruction and extension project is all built very close to existing at present（Structure）Thing is built, when building in neighbouring these（Structure）When building thing construction high-pressure rotary jet grouting pile, the grouting pressure of jet grouting pile construction is huge, original stable resistance to shear of soil can be increased, cause the displacement of these inhering architectures, sedimentation, it could even be possible to causing the engineering pile broken pile of inhering architecture, cause the normal operation of the impact building（Use）.
The content of the invention
Present invention seek to address that drawbacks described above, there is provided a kind of jet grouting pile construction method of close to buildings.Impact of the effectively solving rotary churning pile mortar depositing construction of the present invention to close to buildings.
What the present invention was realized in：A kind of construction method of neighbouring existing construction of structures rotary churning pile, it includes：
Carry out test pile and determine relevant parameter, and reduce input rotary churning pile machine quantity on the premise of quality and duration is met as far as possible；
Pile spacing >=6m that two stake machines are constructed simultaneously；
Relief hole, the pressure release hole depth depth certain more than rotary churning pile are set on just to Construction of High Pressure Jet Grouting Pile path；
Strengthen the monitoring of close to buildings during jet grouting pile construction；
Relief hole can take mud off rig pore-forming, and in hole, provisional being put into is enclosed with steel reinforcement cage, bamboo cage of Dense mesh screen etc.；
Periodically mud balance in sampling observation relief hole, generally between 1.1 ~ 1.2, is adjusted after mud balance goes beyond the scope immediately；
After whole Construction of High Pressure Jet Grouting Pile terminate, the steel reinforcement cage in relief hole, bamboo cage are hung out, and using element soil or swelling earthen backfill, then cover dozen rotary churning pile closure.
The present invention by arrange in relief hole, control relief hole mud balance, control simultaneously the rotary churning pile machine spacing of construction, carry out test pile and determine the methods such as parameter realizing the purpose of the present invention；The present invention forbids a machine to bunch construction, prevents group machine construction pressure during whitewashing excessive, increases and building is disturbed；Need to first pass through test pile acquirement relevant parameter, determine the parameters such as diameter, the spaced position of the construction parameter and relief hole of rotary churning pile；Method of operating of the present invention is easy to learn；Impact of the effectively solving rotary churning pile mortar depositing construction to close to buildings.
Specific embodiment
A kind of construction method of neighbouring existing construction of structures rotary churning pile of the present invention, including：
1st, test pile is carried out first and determines relevant parameter, and reduce input rotary churning pile machine quantity on the premise of quality and duration is met as far as possible；
2nd, pile spacing >=6m that two stake machines are constructed simultaneously；
3rd, relief hole, the pressure release hole depth depth certain more than rotary churning pile are set on just to Construction of High Pressure Jet Grouting Pile path；
4th, strengthen the monitoring of close to buildings during jet grouting pile construction；
5th, relief hole can take mud off rig pore-forming, and in hole, provisional being put into is enclosed with steel reinforcement cage, bamboo cage of Dense mesh screen etc.；
6th, periodically inspect mud balance in relief hole by random samples, generally between 1.1 ~ 1.2（Suitably change depending on concrete soil property situation）, it is adjusted after mud balance goes beyond the scope immediately；
After whole Construction of High Pressure Jet Grouting Pile terminate, the steel reinforcement cage in relief hole, bamboo cage are hung out, and using element soil or swelling earthen backfill, then cover dozen rotary churning pile closure.
Claims (1)
1. a kind of construction method of neighbouring existing construction of structures rotary churning pile, it is characterised in that it includes：
First, carry out test pile and determine relevant parameter, and reduce input rotary churning pile machine quantity on the premise of quality and duration is met as far as possible；
Pile spacing >=6m that two stake machines are constructed simultaneously；
Relief hole, the pressure release hole depth depth certain more than rotary churning pile are set on just to Construction of High Pressure Jet Grouting Pile path；
Strengthen the monitoring of close to buildings during jet grouting pile construction；
Relief hole can take mud off rig pore-forming, and in hole, provisional being put into is enclosed with steel reinforcement cage, bamboo cage of Dense mesh screen etc.；
Periodically mud balance in sampling observation relief hole, generally between 1.1 ~ 1.2, is adjusted after mud balance goes beyond the scope immediately；
After whole Construction of High Pressure Jet Grouting Pile terminate, the steel reinforcement cage in relief hole, bamboo cage are hung out, and using element soil or swelling earthen backfill, then cover dozen rotary churning pile closure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510592266.4A CN106545010A (en) | 2015-09-17 | 2015-09-17 | A kind of jet grouting pile construction method of close to buildings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510592266.4A CN106545010A (en) | 2015-09-17 | 2015-09-17 | A kind of jet grouting pile construction method of close to buildings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106545010A true CN106545010A (en) | 2017-03-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510592266.4A Pending CN106545010A (en) | 2015-09-17 | 2015-09-17 | A kind of jet grouting pile construction method of close to buildings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106545010A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09291532A (en) * | 1996-04-24 | 1997-11-11 | Toshihiko Fujii | Process of erecting existing hollow pile |
| CN102102363A (en) * | 2009-12-21 | 2011-06-22 | 李胜男 | Foundation pile and construction method thereof |
| KR101162111B1 (en) * | 2009-11-19 | 2012-07-03 | 한국건설기술연구원 | Construction Method of Concrete Pile |
| CN104453942A (en) * | 2014-10-17 | 2015-03-25 | 海南大学 | Construction method for restraining frost heave and thaw settlement in cup-shaped horizontal freezing |
| CN204418194U (en) * | 2014-11-25 | 2015-06-24 | 中冶天工上海十三冶建设有限公司 | For high water-permeability layer of sand foundation pit dewatering device |
-
2015
- 2015-09-17 CN CN201510592266.4A patent/CN106545010A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09291532A (en) * | 1996-04-24 | 1997-11-11 | Toshihiko Fujii | Process of erecting existing hollow pile |
| KR101162111B1 (en) * | 2009-11-19 | 2012-07-03 | 한국건설기술연구원 | Construction Method of Concrete Pile |
| CN102102363A (en) * | 2009-12-21 | 2011-06-22 | 李胜男 | Foundation pile and construction method thereof |
| CN104453942A (en) * | 2014-10-17 | 2015-03-25 | 海南大学 | Construction method for restraining frost heave and thaw settlement in cup-shaped horizontal freezing |
| CN204418194U (en) * | 2014-11-25 | 2015-06-24 | 中冶天工上海十三冶建设有限公司 | For high water-permeability layer of sand foundation pit dewatering device |
Non-Patent Citations (1)
| Title |
|---|
| 张桂: "轨交路站配套顶管工程中穿越合流污水总管的施工保护措施", 《上海建筑科技》 * |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170329 |
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| RJ01 | Rejection of invention patent application after publication |