地应力对现场大剪试验的影响

Influence of Geo-stress on In-situ Shear Test

结合某工程现场大剪及地应力实测资料 ,采用非线性三维刚体弹簧元分析了地应力对现场大剪试验的影响。分析结果表明 ,若计入地应力的影响 ,该工程岩体强度C ,φ值 ,在 φ值不变的情况下 ,凝聚力C值约可提高11.7%

Using non-linear 3-D rigid body-spring element method, this paper studied the influence of geo-stress on in-situ shear tests of an undergoing project. The results show that if the influence is taken into account, the rock cohesion force can be increased by 11.7% when friction angle φ is fixed.