关键词: 岩质高边坡, 动态设计, 数值模拟, 稳定控制

Abstract: Under the new situation of hydropower development, Yangfanggou hydropower station is the first large hydropower project under the EPC contract mode in China. During construction of the dam site slope, due to the characteristics of complex geological conditions, high and steep slope, huge scale and tight construction period, it was urgent to systematically carry out research on the key technologies of dynamic feedback design and stability control of high rock slope excavation. Relying on the integrated and efficient management mode and the mutual trust mechanism of this project, an interconnected man- agement system that deeply integrates design, construction and digitization was proposed, and a techni- cal team and innovation platform that closely integrate construction, design, geology, monitoring, scientif- ic research and information were established, which provided an important guarantee system for the sci- entific, safe and efficient construction of slope. Through systematic research and development of com- plete sets of complex technical problems in engineering, a method system of dynamic feedback analysis and decision optimization for large-scale complex high rock slope during construction period was estab- lished, which guaranteed the engineering safety and stability of the 300 m high rock slope in this mil- lion-kilowatt hydropower station. The relevant technical methods and research results have been summa- rized and refined to form a practical standardized method, which has the value of popularization and ap- plication.

Key words:  , high rock slope, dynamic design, numerical simulation, stability control