Effect of rock mass characteristics of high rock slope on seismic stability

摘要

Rock mass characteristics are the key internal factors for the stability of high rock slope. Thenlithological association of rock mass and its structural planes, such as dominant orientations,nlength, fracture aperture and stiffness attenuation, is investigated by exploration methods.nQuantitative description is performed in terms of fracture geological and dynamic parameters tonprovide necessary basic data for the stability of rock slope. Based on rock mass with differentngeological characteristics on one site in the Songjiang area, Shanghai city, the fracturenmechanism is studied using strength reduction finite element method. The different associationsnof the stiffness of rock mass and the dip of its structural planes are processed in dynamic statenand its effects on the safety factor of rock slope are discussed.