ABSTRACT
Oblique slope means that strike of strata obliquely intersects with strike of slope surface. Such slope is often high, steep and steady, and its deformation and failure is mainly local falling. This chapter presents the failure model of some oblique slope consisting of silt mudstone, argillaceous sandstone and carbon shale interlayers, by virtue of analysis of the slope deformation character. According to engineering geological conditions and analysis of cracks, rock mass relaxation and bedding displacement in the slope, a conclusion was drawn that the deformation of the slope was mainly controlled by weak interlayers and steep unloading cracks dipping out of slope. A number of weak interlayers and steep dip outwards off-load cracks develop in the slope. The oblique slope is an inclined slope which consists of interbedded mudstone, siltstone, carbonaceous shale. And interbedded displacement zone is also well-developed. The deformation of slope is showed with offloading rebound and compressive deformation of soft rock.
