Design of supports for deep foundation pits considering attenuation properties of strength of expansive soils shear
JIA Lei-zhu1, HU Chun-lin1, YANG Xin2
1. Wuhan University of Technology,School of Civil Engineering and Architecture, Wuhan 430071, China; 2. Hubei Huaya Construction Engineering Co., Ltd., Wuhan 430071, China
Abstract：The shear strength characteristics of expansive soils and the relationship between their shear strength index and moisture content in Wuhan area are quantitatively analysed. The value table of c, and changing with the water content of weak and medium expansive soils in Wuhan area is worked out. A design method for deep foundation pits considering shear the characteristics of strength attenuation of expansive soils. It's proved by engineering practice that the proposed method is safer, more reliable and reasonable when moisture content is hard to be controlled and the expansion of the soils is relatively large.
贾磊柱, 胡春林, 杨新. 考虑膨胀土抗剪强度衰减特性的深基坑支护工程设计研究[J]. 岩土工程学报, 2014, 36(zk1): 66-71.
JIA Lei-zhu, HU Chun-lin, YANG Xin. Design of supports for deep foundation pits considering attenuation properties of strength of expansive soils shear. Chinese J. Geot. Eng., 2014, 36(zk1): 66-71.
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