Effects of pore water in shear strength of weathered red mudstone in Lanzhou area,China

Water-soil /rock interaction is one of the key causes leading to reduction of shear strength of soil/rock. This is actually resulted from a series of complicated mechanical,physical and chemical interactions between pore water and soil/rock. Investigating these interactions is therefore a key to the understanding insight in variation of soil /rock’s shear strength,which are functions of types of soil /rock and groundwater. In this paper,the interactions between the weathered red mudstone and por...