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《Sichuan Building Science》 2008-03
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Experimental research on radius deformation of soil unloading

LI Hui1,ZENG Yuejin2,HU Xingfu1,ZHU Wanlin3,ZENG Mingshun2(1.Sichuan College of Architectural Technology,Deyang 618000,China;2.Sichuan Hongdu Rock-soil Engineering Limited Company,Deyang 618000,China;3.China Southwest Nuclear Engineering Corporation,Chengdu 610021,China)  
During balance of outside force and internal force,soil is in a stable state.When outside force reduces,soil brings radius deformation.The higher soil's plasticity index,the lower consideration pressure,the bigger radius deformation of soil unloading is.Contrarily,it is small.The higher soil's plasticity index,the lower consideration pressure,and the longer stable time of radius deformation of soil unloading is.Contrarily,it is shorter.
【Fund】: 四川省科技厅重点项目(04SG031-002)
【CateGory Index】: TU41
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