Reinforcement characteristics of ultra-soft ground in Tianjin Port
YIN Chang-quan1, 2
1. State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China; 2.Tianjin Port Engineering Institute Ltd. of CCCC First Harbor Engineering Company Ltd., Tianjin 30222, China
Abstract：Due to its high compressibility, low permeability and low consolidation property, the treatment of ultra-soft soil is very difficult, and the common method is hardly effective. For the ultra-soft soil in Tianjin Port, the design method and construction technique are clarified. According to the indoor experiments and in-situ inspection, the physical, deformation, consolidation and strength properties of ultra-soft soil at different stages are analyzed. The results show that the ultra-soft ground after reinforcement can satisfy the engineering requirements, which can be referred for the similar projects.
[1] 董志良, 张功新. 天津滨海新区吹填造陆浅层超软土加固技术研发及应用[J]. 岩石力学与工程学报, 2011, 30(5): 1074-1080. (DONG Zhi-liang, ZHANG Gong-xin. Research and application of improvement technology of shallow ultra-soft soil formed by hydraulic reclamation in tianjin binhai new area[J]. Chinese Journal of Rock Mechanics and Engineering, 2011, 30(5): 1074-1080. (in Chinese)) [2] 叶国良, 郭述军, 朱耀庭. 超软土的工程性质分析[J]. 中国港湾建设, 2010, 170(5): 1-8. (YE Guo-liang, GUO Shu-jun, ZHU Yao-ting. Analysis on engineering property of ultra-soft soil[J]. China Harbour Engineering, 2010, 170(5): 1-8. (in Chinese)) [3] 李 卫, 曹永华. 浅层超软基真空预压加固技术研究[R]. 天津: 中交天津港湾工程研究院有限公司, 2009. (LI Wei, CAO Yong-hua. Research of reinforcement of ultra-soft ground using vacuum preloading[R]. Tianjin: Tianjin Port Engineering Institute of CCCC., 2009. (in Chinese)) [4] 冯会芳. 新近吹填淤泥形成超软土地基的加固处理方法[J]. 港工技术, 2011, 48(5): 59-60. (FENG Hui-fang. Rein- forcement method of ultra-soft foundation formed by fresh dredger filled mud[J]. Port Engineering Technology, 2011, 48(5): 59-60. (in Chinese))
