Systematic Engineering Geological Study On The Stability Of High Slope With Soft Rock

For the high slope stability, the different degree threats have been made by the soft rocks or weak structural planes, which directly restrict normal operation of the hydraulic structures. Zipingpu water conservancy project is located at upriver of Minjiang, and the excavated slope is about 300m high with soft rock widely distributing in the bed rock.In this dissertation, based on the systemic analysis of stability, optimized reinforcement measure, deformation-failure features of the rock mass with soft interlayer, and response of geological action, systematical stability of the high slope is evaluated by virtue of engineering geological analysis and numerical simulation during constructing and reservoir operating, combined with the tracing in the high slope excavation process. Dynamically optimized timbering design of the high slope is especially analyzed during excavation in order to ensure long-term stability and operation of the project. The research results can be obtained as follows:(1) Aimed at the characteristics of high slope with soft interlayer rock at Zipingpu strip-like ridge, utilizing mechanism analysis of geological process and measuring methodological theory in the geotechnical engineering, a series of methods for stability analysis and evaluation of the high slope has been systematically summarized. At the same time, integrated theories about dynamic research and reinforcement optimization during the construction of high slope are put forward, as well as analyzing and evaluating method of the high slope stability during the operation of reservoir. These theories can not only work directly for the engineering well, but also provide technism and methodology for research on stability of the high slopes in the similar projects, enriching research content on...