Experimental study on thawing subsidence characters of permafrost under frost heaving and thawing circulation
LIANG Bo 1 2, ZHANG Guisheng 3, LIU Deren 2
1.School of Civil Engineering and Architecture Chongqing Jiaotong University Chongqing 400074 China 2.School of Civil Engineering Lanzhou Jiaotong University Lanzhou 730070 China 3.Tianjin Municipal Engineering Design Research Institute Tianjin 300051 China
Abstract：The disease of subgrade in permafrost region was mainly induced by frost heaving and thawing circulation of frozen soils because of change of seasons.Considering the different soils in different test sections of Qinghai-Tibet railway from Golmud to Lhasa,the thawing subsidence characters of frozen soils with different water contents,densities and loads under frost heaving and thawing circulation were studied.The relationship between thawing subsidence coefficient and cyclic thawing subsidence coefficient and the formula were discussed too.All these works were beneficial for deep understanding about thawing subsidence characters.
梁波；张贵生；刘德仁；. 冻融循环条件下土的融沉性质试验研究[J]. 岩土工程学报, 2006, 28(10): 1213-1217.
LIANG Bo 1 2, ZHANG Guisheng 3, LIU Deren 2. Experimental study on thawing subsidence characters of permafrost under frost heaving and thawing circulation. Chinese J. Geot. Eng., 2006, 28(10): 1213-1217.
