陆培毅  刘  畅　（天津大学建筑工程学院　300072）

[提要]  以天津地区软土为例，采用弹性抗力法，通过选取不同强度指标，分别采用水土分算、水土合算分析了支护结构内力、变形。采用直剪快剪强度水土合算与固结快剪强度水土分算计算得出的支护结构弯矩、位移十分接近；而采用相同强度指标，水土分算比水土合算所得弯矩、位移大25%～35%。
[关键词]  支护结构  强度指标  对比计算

Adopting elastic-resisting method and different indexes of strength of soft clay in Tianjin, the inner forces and deformation of retaining structure are gained considering the water-soil together/departure calculating method. Using undrained shear strength and water-soil together, the results are much close to results of the consolidated undrained shear strength and water-soil departure. While using the same shearing strength indexes, the results of water-soil departure method are approximately 25%一35%larger than those of water-soil together.
Keywords: retaining structure; strength index; comparing calculation

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