The Dynamic Property Of Weak Interlayer And Its Application In Rock Slope Engineering

With the development of the national economy, a great number of being constructed and planned projects such as hydroelectric power stations, highways and buildings, which involve energy, transportation and other industries, are quiet large and complex in the world. These projects often encounter huge difficulty and are even caused to fail due to the existence of weak interlayer. So the study of the dynamic property of weak interlayer and its application in rock slope engineering not only has theoretical value, but also possesses real significance.Firstly, the effects of weak interlayer on the propagation of an incident sine shear wave are studied in this thesis. To the weak interlayer whose thickness is smaller, it is simulated by an interface and the problem mainly concerns the effects of two factors (cohesion and friction angle); To the weak interlayer whose thickness is greater, it is simulated by the real thickness of the weak interlayer and two interfaces on each side of it, and the study focuses on five factors of the weak interlayer: the thickness, cohesion, friction angle, elastic modulus and Poisson's ratio of weak interlayer. Then, all combinations are numerically simulated and analyzed, and some valuable conclusions are drawn. Secondly, a rock slope project with weak interlayer is taken as an example and numerically simulated. Its stability under gravity and especially seismic wave is studied and analyzed. It is found that the displacement of the slope under the earthquake is far greater than that under gravity and that the earthquake has remarkable effects on the slope project. Finally, the achievements of this paper are summarized and some aspects for further research are recommended...