非饱和土地基沉降计算参数试验研究

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Abstract Research purposes: To propose an effective test method to get suitable Settlement calculation parameter for unsaturated soil，it is very practical to high － speed rail passenger line with strict settlement demand．

Research conclusions: Based on the unsaturated silty clay and floury soil of Qingdao － Ji＇nan passenger special line，carried by the consolidation test and in － situ tests，the results show that the unsaturated silty clay and floury soil’s saturation is between 46% ～ 80% ，the compression modulus of which to calculate settlement can be comprehensively obtained through the consolidation test ，cone penetration test and standard penetration test; and the calculating settlement of which can be revised according to the empirical coefficient of the Code for design of building．

Key words： Qingdao － Ji＇nan passenger special line unsaturated soil in － situ testing modulus of subgrade reaction

Received: 13 August 2011

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TU443

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http://tdgcxb.crec.cn/EN/ OR http://tdgcxb.crec.cn/EN/Y2012/V29/I1/6

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