Abstract：Because of the low strength, high moisture content, high compressibility and marked rheology of sullage soft soils, the risk of excavating foundation pits in soft foundations is large. The option of support schemes has obvious effect on cost, progress and quality of projects. Sometimes it even becomes the key to the successful completion of the projects. Combined with the engineering practices of four super-large excavations in Pujiang Town of Shanghai, the characteristics of sullage soft soils in coastal areas of Shanghai are introduced, and the application effects of common supporting structures are also comprehensively analyzed and compared. The experience and conclusions may be helpful to the similar or even larger projects in the future.
林巧. 滨海软土地基超大面积浅基坑支护技术工程实践研究[J]. 岩土工程学报, 2014, 36(zk1): 109-117.
LIN Qiao. Practices of supporting technology for shallow super-large excavations in coastal area under soft foundation conditions. Chinese J. Geot. Eng., 2014, 36(zk1): 109-117.
[1] 王卫东, 吴江斌, 黄绍铭. 上海地区建筑基坑工程的新进展与特点[J]. 地下空间与工程学报, 2005(4): 547-553. (WANG Wei-dong,WU Jiang-bin,HUANG Shao-ming. Recent progress and characteristics of pit foundation in shanghai[J]. Chinese Journal of Underground Space and Engineering, 2005(4): 547-553. (in Chinese)) [2] 刘国彬, 王卫东. 基坑工程手册[M]. 北京: 中国建筑工业出版社, 2009. (LIU Guo-bin, WANG Wei-dong. Excavation engineering handbook[M]. Beijing: China Architecture and Building Press, 2009. (in Chinese)) [3] 易坤津. 上海地区与宁波地区软土工程特性分析[J]. 浙江建筑, 2012, 29(5): 30-32. (YI Kun-jin. Analysis on engineering property of soft soils in Shanghai and Ningbo area[J]. Zhejiang Construction, 2012, 29(5): 30-32. (in Chinese)) [4] DGJ 08—37—2012岩土工程勘察规范[S]. 上海, 2012. (DGJ 08—37—2012 Code for investigation of geotechnical engineering[S]. Shanghai, 2012. (in Chinese))
