艰险山区基础设施建设与安全运维面临越来越多复杂滑坡群灾害防治问题。针对当前复杂滑坡群参数反演中缺乏考虑抗剪强度参数“随机性和不确定性”、不同三维滑动区域“区域关联性”的不足，本项目深入开展区域关联性滑坡群非线性抗剪强度参数反演方法研究。首先，在建立区域关联性滑坡群数据库的基础上，对典型区域关联性滑坡群进行调查分析；其次，剖析抗剪强度参数“随机性和不确定性”、滑坡“三维形态”及不同滑动区域“区域关联性”对滑坡群滑动机制的影响，阐明区域关联性滑坡群演化机理。进一步，结合三维能耗分析与系统可靠度理论，建立考虑滑坡群不同滑动区域关联性的非线性抗剪强度参数系统可靠度反演方法。最后，面向工程设计，开发一套复杂滑坡抗剪强度参数反演分析非线性规划可视化通用程序。项目研究对象来源于工程实际第一线，是当前中西部艰险山区基础设施建管养必须解决的重大关键问题，研究成果将为合理有效整治复杂滑坡群提供科学依据。

Mountainous infrastructure construction and safety maintenance are facing more and more complicated landslide group disasters. In the parameter inversion of complex landslide groups, existing studies fail to consider the "randomness and uncertainty" of shear strength parameters and the "regional correlation" of three-dimensional sliding regions. This project has carried out in-depth research on nonlinear shear strength parameter inversion methods of regional associated landslide groups. Firstly, establish a database of regional related landslide groups, and on this basis, investigate and analyze typical areas. Secondly, analyze the "randomness and uncertainty" of shear strength parameters, the "three-dimensional shape" of landslides and the "regional correlation" of different sliding regions, and clarify the evolution mechanism of regional-related landslide groups. Furthermore, based on the three-dimensional energy analysis and system reliability theory, a systematic reliability inversion method for nonlinear shear strength parameters that considers the correlation of different sliding regions of landslide groups is established. Finally, for the engineering design, a set of nonlinear analysis program of shear strength parameters inversion of complex landslide is developed. The research object of the project comes from the first line of engineering practice, which is a major key issue that must be solved in the current infrastructure management of mountainous areas in the central and western regions. The research results will provide a scientific basis for rational and effective rectification of complex landslide groups.