三軸圧縮試験からせん断強度定数を決定する方法の統計学的検討

概要

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There are two ways for determinig strength parameters using least square method in triaxial test. When data are widely dispersed, discrepansy between strength parameters by two ways may not be negligible. In the first way, strength parameters are determined from confining stress and deviator stress at failure, then, the least square method is correctly applied in evaluating errors. In the second way, strength parameters are determined from mean stress and maximum shear stress at failure, then, the regression straigth line will be the best fit to Mohr's circles. Usually, the cohesion determined by the first way is larger than the one by the second way, and the internal friction angle determined by the first is smaller than the one by the second.
社団法人地盤工学会の論文
2004-11-01