研究结论:对武广高速铁路红粘土地基采用 ES法、e ～ lg p 法、三向应力法、割线模量法、现场试验法进行沉降计算，研究表明: 几种理论计算方法基本上随外荷载的增加呈线性变化，但外荷载越大，理论值偏离越大。分层总和计算的沉降量值较其他方法最接近实测值，三向应力法、割线模量法偏离得较大。根据实测沉降量分别进行修正，修正后的曲线中，E S法的修正曲线比较接近实测值。
Abstract：Research purposes: Considering high requirement and strict control on post － construction settlement of high － speed railway， settlement properties of red clay foundation was studied． Furthermore， proper settlement calculation method and corresponding modification coefficient was obtained after comparative analysis．
Research conclusions: Red clay foundation settlement was calculated by E S method，e ～ lg p method，3D stress method， secant modulus method and field test method，by which following conclusions could be drawn: settlement obtained from theoretical methods varied linearly with load increasing，however，significant deviation appeared with heavy load． Calculated settlement by layer － wise summation method was closest to measured value，while 3D stress method and secant modulus lead to a significantly larger settlement． Based on measured settlement，all calculations were modified in which ES method resulted in a closer curve.
Wei Shihong， Liao Yiling． Overconsolidation Properties，Low Degree of Density，and Characteristics of Deformation of Red Clay in Qianzhong Area ［J］． Journal of Guizhou University of Technology ( Natural Science Edition) ，2006( 4) : 9 － 12．
Wang Zhiliang，Gao Feng． Study on Modified Factors for 1 － D Calculation of Embankment Settlement Considering soil Lateral Deformation ［J］． Rock and Soil Mechanics，2005( 5) : 763 － 768．
Wang Tiexing． Analysis and Amendment of Layerwise Summation Method for Calculation Setting of Ground ［J］． Journal of Xi’an University of Architecture ＆ Technology，1996( 2) : 179 － 182．
2011, Vol. 28 
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