CN102926394A - Method for using lime piles to rectify deviation of open caisson - Google Patents
Method for using lime piles to rectify deviation of open caisson Download PDFInfo
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- CN102926394A CN102926394A CN2012104293784A CN201210429378A CN102926394A CN 102926394 A CN102926394 A CN 102926394A CN 2012104293784 A CN2012104293784 A CN 2012104293784A CN 201210429378 A CN201210429378 A CN 201210429378A CN 102926394 A CN102926394 A CN 102926394A
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- open caisson
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Abstract
The invention discloses a method for using lime piles to rectify deviation of an open caisson. The method is characterized in that calcined lime piles are arranged on a portion of the open caisson, which is required to be pushed up, calcined lime piles are piled into foundation soil in an inclined direction, the inclining ratio of calcined lime piles is in a range of 75-90 degrees, real-time monitoring is conducted during pushing-up of the open caisson, the construction is paused when the open caisson pushing-up amount reaches 8-10cm, calcined lime pile construction is conducted after a soil body is stable basically after 3 days, grouting construction is conducted after the calcined lime pile construction is finished, and the length and the interval of the calcined lime piles can be adjusted according to the pushing-up amount. The method has the advantages of being low in construction cost, fast in speed and the like.
Description
Technical field
The present invention relates to a kind of method of utilizing lime pile correction open caisson, be applicable to municipal field.
Background technology
Because tilt phenomenon appears in various factors, traditional method adopts soil digging to sink to rectifying a deviation during open caisson construction.But for some the open caisson of Functional Requirement is arranged, can affect its use function if the open caisson absolute altitude descends, can only rectify a deviation to satisfy instructions for use by the method for rectifying by jack up.In ground, pour into caustic lime block, because absorbing the moisture generation digestion reaction of stake Zhou Tuzhong, caustic lime block generates hydrated lime, simultaneously pile body volume expansion, make inter-pile soil produce powerful extruding force, lime can produce ion-exchange, gelatification in foundation soil in addition, make that the granule content of clay reduces greatly in the soil, the mechanical property of soil makes moderate progress.Can utilize above principle that open caisson is carried out rectifying by jack up.
Summary of the invention
The technical problem that the present invention solves provides a kind of method of utilizing lime pile correction open caisson, solves the problem of the rectifying by jack up of open caisson.
Quicklime pile is arranged in the position that open caisson needs jacking among the present invention, and quicklime pile is oblique to be squeezed in the foundation soil, and the quicklime pile slope is 75 °～90 °.To carry out Real-Time Monitoring in the open caisson jacking process, treat that open caisson jacking amount reaches 8～10cm and will temporarily stop construction, behind the 3d after the soil body is basicly stable row construction quicklime pile again.To carry out mortar depositing construction after the quicklime pile construction is complete.
The quicklime pile stake is long to be adjusted according to the jacking amount, and the jacking amount is in the 5cm, and stake is long to be 5～6m, and spacing is 1.2～1.4cm; The jacking amount is 5～10cm, and stake is long to be 6～7m, and pile spacing is 1.2～1.1cm; The jacking amount is 10～14cm, and stake is long to be 7～8m, and pile spacing is 0.9～1cm; The jacking amount is 14～17cm, and stake is long to be 8～9m, and pile spacing is 0.8～0.9cm; The jacking amount is 17～20cm, and stake is long to be 9～10m, and pile spacing is 0.7～0.8cm.
For mucky soil, the quicklime pile diameter is 400～450cm; For clay, the quicklime pile diameter is 450～500cm; For sand, the quicklime pile diameter is 500～600cm.
Quicklime pile is prepared burden take quicklime as main, and mixes admixture flyash and additive gypsum.Take different fly-ash-contained and gypsum incorporations for different moisture content, when water content is 30% when following, fly-ash-contained is 15%, and the gypsum incorporation is 5%; When water content was 30%～50%, fly-ash-contained was 13%, and the gypsum incorporation is 4%; When water content was 50%～70%, fly-ash-contained was 11%, and the gypsum incorporation is 3%; When water content was 70%～90%, fly-ash-contained was 9%, and the gypsum incorporation is 2%; When water content is 90% when above, fly-ash-contained is 7%, and the gypsum incorporation is 1%.
The vertical zone of slip casting is in the 2m depth bounds, and plane domain is open caisson periphery 30～50cm, and the Grouting Pipe arrangement pitch is 1.2～1.5m, carries out first peripheral slip casting during construction, carries out the inner slip casting of open caisson again.The periphery holes grouting amount is controlled according to grouting amount; The interstitial hole grouting amount carries out dual control according to grouting amount and pressure, and pressure is no more than 2.5MPa.
Grouting serous fluid adopts the water glass of cement paste admixture 3%, and modulus of water glass is 2.4～3.4, and concentration of sodium silicate is 40oBe.
Jacking amount of the present invention is in the 20cm.The present invention utilize quicklime suction, expansion, heating and with the effect such as stake surrounding soil generation ion-exchange, thereby so that stake week soil a water content reduce, compactness improves, and reaches simultaneously the purpose of rectifying by jack up.The present invention has the characteristics such as cost is low, easy construction.
Description of drawings
Fig. 1 open caisson deviation rectification schematic diagram
Accompanying drawing sign: 1, quicklime pile, 2, open caisson, 3, foundation soil
The specific embodiment
Below in conjunction with accompanying drawing the present embodiment is described in detail.
Fig. 1 is the open caisson deviation rectification schematic diagram.The present embodiment open caisson 2 needs jacking 12cm, and open caisson 2 following foundation soils 3 are mucky soil, and water content is 60%.Quicklime pile 1 is arranged in the position that open caisson 2 needs jacking, quicklime pile 1 oblique squeezing in the foundation soil 4, and quicklime pile 1 slope is 80 °.To carry out Real-Time Monitoring in the open caisson 2 jacking processes, treat that open caisson 3 jacking amounts reach 8cm and will temporarily stop construction, behind the 3d after the soil body is basicly stable row construction quicklime pile 1 again, make open caisson 2 continue jacking 4cm.
1 of quicklime pile is long to be 8m, and pile spacing is 0.9cm, and a stake diameter is 400cm.Quicklime pile 1 is prepared burden take quicklime as main, and mixes admixture flyash and additive gypsum.Fly-ash-contained is 11%, and the gypsum incorporation is 3%.
The vertical zone of slip casting is in the 2m depth bounds, and plane domain is open caisson periphery 30～50cm, and the Grouting Pipe arrangement pitch is 1.2～1.5m, carries out first peripheral slip casting during construction, carries out the inner slip casting of open caisson again.The periphery holes grouting amount is controlled according to grouting amount, calculates by " slurry injection technique rules " according to the porosity of grout spreading range and layer of sand to obtain; The interstitial hole grouting amount carries out dual control according to grouting amount and pressure, and pressure is no more than 2.5MPa, avoids because grouting pressure is crossed the hole wall that senior general closes on crushes.
Grouting serous fluid adopts the water glass of cement paste admixture 3%, and to increase its impermeability and early strength, modulus of water glass is 3, and concentration of sodium silicate is 40oBe.Slurry configurations begins to be not more than 1h to the time that slip casting is finished.
Claims (2)
1. a method of utilizing lime pile correction open caisson is characterized in that quicklime pile is arranged in the position that open caisson needs jacking, and quicklime pile is oblique to be squeezed in the foundation soil, and the quicklime pile slope is 75 °～90 °; To carry out Real-Time Monitoring in the open caisson jacking process, treat that open caisson jacking amount reaches 8～10cm and will temporarily stop construction, behind the 3d after the soil body is basicly stable row construction quicklime pile again; To carry out mortar depositing construction after the quicklime pile construction is complete; The quicklime pile stake is long to be adjusted according to the jacking amount, and the jacking amount is in the 5cm, and stake is long to be 5～6m, and spacing is 1.2～1.4cm; The jacking amount is in the 5cm, and stake is long to be 5～6m, and spacing is 1.2～1.4cm; The jacking amount is during greater than 5cm and less than 10cm, and stake is long to be 6～7m, and pile spacing is 1.2～1.1cm; The jacking amount is during more than or equal to 10cm and less than 14cm, and stake is long to be 7～8m, and pile spacing is 0.9～1cm; The jacking amount is during more than or equal to 14cm and less than 17cm, and stake is long to be 8～9m, and pile spacing is 0.8～0.9cm; The jacking amount is during more than or equal to 17cm and less than 20cm, and stake is long to be 9～10m, and pile spacing is 0.7～0.8cm.
2. the method for utilizing lime pile correction open caisson according to claim 1 is characterized in that for mucky soil, and the quicklime pile diameter is 400～450cm; For clay, the quicklime pile diameter is 450～500cm; For sand, the quicklime pile diameter is 500～600cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210429378.4A CN102926394B (en) | 2010-06-05 | 2010-06-05 | Method for using lime piles to rectify deviation of open caisson |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210429378.4A CN102926394B (en) | 2010-06-05 | 2010-06-05 | Method for using lime piles to rectify deviation of open caisson |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010201389 Division CN101845830B (en) | 2010-06-05 | 2010-06-05 | Open caisson deviation rectification construction method |
Publications (2)
| Publication Number | Publication Date |
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| CN102926394A true CN102926394A (en) | 2013-02-13 |
| CN102926394B CN102926394B (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210429378.4A Expired - Fee Related CN102926394B (en) | 2010-06-05 | 2010-06-05 | Method for using lime piles to rectify deviation of open caisson |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912807A (en) * | 2010-06-05 | 2013-02-06 | 朱虹 | Open caisson jacking deviation correcting method |
| CN108396758A (en) * | 2016-11-17 | 2018-08-14 | 叶香雄 | Open caisson deviation rectification construction method |
Citations (9)
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| GB263997A (en) * | 1925-12-02 | 1927-01-13 | Jorgen Saxild | Improvements in and relating to the construction of quay walls, piers and other marine structures |
| JPH09316894A (en) * | 1996-05-30 | 1997-12-09 | Ohbayashi Corp | Bridge pier foundation structure, and construction method thereof |
| JPH11140881A (en) * | 1997-11-13 | 1999-05-25 | Ohbayashi Corp | Penetration method for caisson foundation |
| CN101148888A (en) * | 2006-09-22 | 2008-03-26 | 上海市基础工程公司 | Compressed-air caisson anchor pile automatic error correcting device |
| CN201065505Y (en) * | 2007-07-10 | 2008-05-28 | 宏润建设集团股份有限公司 | Box culvert error-correcting device |
| JP2008184889A (en) * | 2007-01-30 | 2008-08-14 | Nariyoshi Kuramoto | Caisson construction method combined with guide hole method for constructing underground structure |
| CN101319504A (en) * | 2008-07-11 | 2008-12-10 | 同济大学 | Sea floor suction type foundation immersion method |
| CN101503879A (en) * | 2009-03-10 | 2009-08-12 | 中国第一冶金建设有限责任公司 | Pre-control method for preventing inclination of sinking well |
| CN101608453A (en) * | 2009-07-06 | 2009-12-23 | 广州市第二市政工程有限公司 | The process of rectifying deviation of open caisson by jacking balance of jack |
-
2010
- 2010-06-05 CN CN201210429378.4A patent/CN102926394B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB263997A (en) * | 1925-12-02 | 1927-01-13 | Jorgen Saxild | Improvements in and relating to the construction of quay walls, piers and other marine structures |
| JPH09316894A (en) * | 1996-05-30 | 1997-12-09 | Ohbayashi Corp | Bridge pier foundation structure, and construction method thereof |
| JPH11140881A (en) * | 1997-11-13 | 1999-05-25 | Ohbayashi Corp | Penetration method for caisson foundation |
| CN101148888A (en) * | 2006-09-22 | 2008-03-26 | 上海市基础工程公司 | Compressed-air caisson anchor pile automatic error correcting device |
| JP2008184889A (en) * | 2007-01-30 | 2008-08-14 | Nariyoshi Kuramoto | Caisson construction method combined with guide hole method for constructing underground structure |
| CN201065505Y (en) * | 2007-07-10 | 2008-05-28 | 宏润建设集团股份有限公司 | Box culvert error-correcting device |
| CN101319504A (en) * | 2008-07-11 | 2008-12-10 | 同济大学 | Sea floor suction type foundation immersion method |
| CN101503879A (en) * | 2009-03-10 | 2009-08-12 | 中国第一冶金建设有限责任公司 | Pre-control method for preventing inclination of sinking well |
| CN101608453A (en) * | 2009-07-06 | 2009-12-23 | 广州市第二市政工程有限公司 | The process of rectifying deviation of open caisson by jacking balance of jack |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912807A (en) * | 2010-06-05 | 2013-02-06 | 朱虹 | Open caisson jacking deviation correcting method |
| CN102912807B (en) * | 2010-06-05 | 2015-11-25 | 朱虹 | A kind of open caisson jacking deviation rectifying method |
| CN108396758A (en) * | 2016-11-17 | 2018-08-14 | 叶香雄 | Open caisson deviation rectification construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102926394B (en) | 2015-03-25 |
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