THE CAISSON CONSTRUCTION OF A SWIRL POOL AND ITS INSTABILITY TILT ANALYSIS AND TREATMENT

Li Jin-bao; Jiang Tao; Shi Xian-wang; Xu Wen-ping

doi:10.13204/j.gyjz201209035

Volume 42 Issue 9

Dec. 2014

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2012 > 42(9): 167-172,137

Li Jin-bao, Jiang Tao, Shi Xian-wang, Xu Wen-ping. THE CAISSON CONSTRUCTION OF A SWIRL POOL AND ITS INSTABILITY TILT ANALYSIS AND TREATMENT[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(9): 167-172,137. doi: 10.13204/j.gyjz201209035

Citation:

Li Jin-bao, Jiang Tao, Shi Xian-wang, Xu Wen-ping. THE CAISSON CONSTRUCTION OF A SWIRL POOL AND ITS INSTABILITY TILT ANALYSIS AND TREATMENT[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(9): 167-172,137. doi: 10.13204/j.gyjz201209035

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THE CAISSON CONSTRUCTION OF A SWIRL POOL AND ITS INSTABILITY TILT ANALYSIS AND TREATMENT

doi: 10.13204/j.gyjz201209035

1.
1. Jiangsu Dongnan Special Engineering &Technology Co.Ltd,Nanjing 210008,China;
2.
2. Southeast University,Nanjing 210008,China

Received Date: 2012-05-18
Publish Date: 2012-09-20

Abstract

Abstract

It was presented that the caisson construction technique, instability causes and rectification treatment procedure of a swirl pool.It was investigated and analyzed the construction organization, design, construction technique and the actual geological condition of this caisson project according to the instability tilt of the RC swirl pool during its construction, as well as found out the problems of the caisson during construction, and also the causes leading to the instability tilt of the caisson.It was found by the forced analysis of the instable caisson that the center of gravity of the caisson was still within the circle of angle of throat on the bottom of the caisson.In order to ensure the position of the rectified caisson to be basically the same as that of its original design, the rectification scheme was determined, i.e.the caisson would go back gradually to its correct position by relying on self-weight and limit constraints resulting from erecting piles and reaction platform respectively in the southeast and northwest corners of the caisson as well as by imbalance excavation．
- open caisson,
- tilt,
- foundation bearing capacity,
- instability,
- stress analysis,
- rectification,
- limit

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References(7)

References

CECS 225: 2007 建筑物移位、纠倾、增层改造技术规范[S].

[2] GB 500072002 建筑地基基础设计规范[S].

[3] JGJ 792002 建筑地基处理技术规范[S].

[4] JGJ 1232000 既有建筑地基基础加固技术规范[S].

[5] JGJ/T 897 建筑变形测量规程[S].

[6] 李今保，顾文虎.深基坑开挖对相邻建筑物地基基础产生水平滑移的加固研究[J].扬州大学学报: 自然科学版，2011，14(4):220-223.

[7] 李今保，赵启明.钢筋混凝土沉井法在既有建筑物中新增电梯井技术[J].扬州大学学报: 自然科学版，2011，14 (4 ): 227-230.

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