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．
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Zhao Minghua， Sun Jianbin， Zhang Yongjie． Settlement Calculation of Two － direction Reinforced Composite Foundation Based on Winkler Model ［J］． Rock and Soil Mechanics，2010( 11) : 3459 － 3463．
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2012, Vol. 29 
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