Journal of Shanghai Jiaotong University >
Behavior of Resisting Soil Behind a Circular Caisson Well with Large Jacking Force
Received date: 2013-12-24
Online published: 2014-11-28
Analysis of soil counterforce and displacement of circular caisson pipe jacking project was made under the effect of different top edge using the site monitoring method as well as the comparative validation of distribution pattern of resistance of different open caisson using finite element numerical simulation methods. The results show that the distribution pattern of resistance of open caisson is approximated by a straight line which mutates in the depth of the caisson bottom due to the stiffness of the floor at large and reaches the maximum at the foot. The displacement of soil occurs less but as a whole under the jacking force. Simultaneously, the rationality of less than the active state was verified in the case that the soil of open caisson produces a smaller displacement under the caisson sinking back below the front wall of the active state which gives the variation of inking back soil reactions with the different distance.
Key words： pipe jacking; working well; circular caisson; earth counterforce; displacement
ZHU Long, XU Zhen, BAI Zhan-wei, CHEN Jin-jian, WANG Jian-hua . Behavior of Resisting Soil Behind a Circular Caisson Well with Large Jacking Force[J]. Journal of Shanghai Jiaotong University, 2014 , 48(11) : 1510 -1516 . DOI: 10.16183/j.cnki.jsjtu.2014.11.002
| [1] | 余彬泉, 陈传灿. 顶管施工技术[M]. 北京: 人民交通出版社, 1998. |
| [2] | 宋伟宁, 葛春辉. 顶管工程中后座井壁荷载近似计算方法探讨[J]. 特种结构, 1995, 12(4): 31-35. |
| [2] | SONG Wei-ning, GE Chun-hui. Discussion of approximate calculation for the load at thrust wall during pipe jacking project[J]. Special Structures, 1995, 12(4): 31-35. |
| [3] | 王恒栋, 葛春辉, 王大龄, 等. 圆形沉井在顶力作用下的内力分析[J]. 特种结构, 2001, 18(2): 5-7. |
| [3] | WANG Heng-dong, GE Chun-hui, WANG Da-ling, et al. Internal force analysis of circular caisson under the action of jacking force[J]. Special Structures, 2001, 18(2): 5-7. |
| [4] | 夏明耀, 汪炳鑑, 王大龄, 等. 圆形地下连续墙顶管工作井施工阶段和顶进阶段的内力计算与设计[J]. 同济大学学报, 1989, 17(1): 11-20. |
| [4] | XIA Ming-yao, WANG Bing-jian, WANG Da-ling, et al. Corn-putation of internal forces and design for circular dia-phragm wall shaft of pipe jacking project in excavating stage and driving stage[J]. Journal of Tongji University, 1989, 17(1): 11-20. |
| [5] | 魏纲, 徐日庆, 宋金良. SMW工法圆形工作井土抗力计算方法的研究[J]. 浙江大学学报: 工学版, 2005, 39(1): 98-102. |
| [5] | WEI Gang, XU Ri-qing, SONG Jin-liang. Researches on earth counterforce calculation in circular working shaft by SMW methods[J]. Journal of Zhejiang University: Engineering Science, 2005, 39(1): 98-102. |
| [6] | 冯海宁, 徐日庆, 龚晓南. 沉井后背墙土抗力计算的探讨[J]. 中国市政工程, 2002(1): 64-66. |
| [6] | FENG Hai-ning, XU Ri-qing, GONG Xiao-nan. Discussion on calculation of earth resistance at caisson thrust wall[J]. China Municipal Engineering, 2002(1): 64-66. |
| [7] | 魏纲, 徐日庆, 龚慈, 等. 顶管工程中圆形沉井土体反力计算方法的研究[J]. 浙江大学学报: 工学版, 2004, 38(11): 1454-1478. |
| [7] | WEI Gang, XU Ri-qing, GONG Ci, et al. Research on earth counterforce calculation for circular caisson working well during pipe jacking project[J]. Journal of Zhejiang University: Engineering Science, 2004, 38(11): 1474-1478. |
| [8] | 宋金良, 龚晓南, 徐日庆. 圆形工作井的土反力分布特征研究[J]. 煤田地质与勘探, 2003, 31(6): 39-42. |
| [8] | SONG Jin-liang, GONG Xiao-nan, XU Ri-qing. Distribution characteristics of soil back pressure in round working well[J]. Coal Geology & Exploration, 2003, 31(6): 39-42. |
| [9] | 魏丽敏, 向远华, 陈果元, 等. 顶管工程工作井位移与土抗力分析[J]. 岩土力学, 2009, 30(8): 2397-2402. |
| [9] | WEI Li-min, XIANG Yuan-hua, CHEN Guo-yuan, et al. Analysis of displacement and soil counterforce for working well of pipe jacking engineering[J]. Rock and Soil Mechanics, 2009, 30(8): 2397-2402. |
| [10] | 雷晗. 大直径砼顶管工程中土与结构的相互作用分析[D]. 上海: 上海交通大学, 2012. |
| [11] | 冶金工业部建筑研究总院. 基坑开挖与支护技术[M]. 北京: 冶金工业出版社, 1993. |
/
| 〈 |
|
〉 |
