Research on the expansive soils in Three-Gorge Reser voir region
ZHANG Jiagui 1 2 , QU Yongxin 3
1.China Institute of Geoenvironmental Monitoring Ministry of Land and Resources Beijing 100081 China 2.Institute of Geomechanics Chinese Academy of Geological Sciences Beijing 100081 China 3.Institute of Geology
Abstract：There exist soils with diluvial or pluvial genesis and bad engineering properties on the river slope in Three-Gorge Reservoir reg ion. I t is obvious that, the soils are classified as low expansive by the national sta ndard, or medium to high expansive according to the current international e xpan sive potential chart from Williams & Donaldson(1980). By advanced clay test te chnology-XRD, it is disclosed that the expansive clays mainly consist of mixed-layer mineral I/S with middle mixed-layer ratio. And finally, their ha zar d mechanisms are researched and the curing methods are put forwards. Research on the expansive soils is of great significance for the improvement of expansive soils in Three-Gorge Reservoir region.
张加桂；曲永新；. 三峡库区膨胀土的发现和研究[J]. 岩土工程学报, 2001, 23(6): 724-727.
ZHANG Jiagui 1 2, QU Yongxin 3. Research on the expansive soils in Three-Gorge Reser voir region. Chinese J. Geot. Eng., 2001, 23(6): 724-727.
