岩土力学2011，Vol.32Issue(2)：380-386,7.
水化学作用对砂岩抗剪强度特性影响效应研究
Experimental study for shear strength characteristics of sandstone under water-rock interaction effects
摘要
Abstract
Shear strength tests of sandstone under different hydrochemical environments were carried out.The effect of hydrochemical action on sandstone structure was analyzed from the viewpoint of meso-mechanism; and the mechanism of hydrochemical damage of sandstone was discussed.On this basis, the effect of hydrochemical action on shear strength of sandstone was analyzed; and a variable was introduced to quantitatively express the hydrochemical damage evolution of shear strength parameters.Moreover, the evolution of hydrochemical damage degree of Chongqing sandstone under certain environment was simulated by chemical kinetics method.Based on the simulation, the shear strength parameters can be predicted.The study results can be used as a valuable reference to quantitatively evaluate the hydrochemical corrosion of rock; so as to offer an effective method to estimate the safety and stability of rock engineering under water-rock interaction effects.关键词
砂岩/水化学作用/抗剪强度/黏聚力/内摩擦角/化学动力学分类
建筑与水利引用本文复制引用
李鹏,刘建,李国和,朱杰兵,刘尚各..水化学作用对砂岩抗剪强度特性影响效应研究[J].岩土力学,2011,32(2):380-386,7.基金项目
国家自然科学基金 (No.40672192,No.40772193) （No.40672192,No.40772193）
国家重点基础研究发展计划(No.2009CB724603) （No.2009CB724603）
国家自然科学基金重点项目(No.50539090). （No.50539090）
