准确获取动水作用下库岸滑坡多场信息是可靠评价滑坡稳定性的重要基础。尽管GeoStudio和FLAC3D是目前库岸滑坡多场信息模拟常用的数值软件，但其仍存在诸多限制。本文提出了一种基于GeoStudio与FLAC3D互馈的库岸滑坡多场信息模拟方法，通过GeoStudio获得动水作用下的滑坡时变渗流场，并编制接口程序实现GeoStudio模型和渗流场向FLAC3D的快速转换，依据岩土体遇水特性和有效应力原理，修正FLAC3D模型岩土体参数与初始应力，以计算滑坡应力应变，实现动水作用下库岸滑坡多场信息演化过程的快速模拟。采用库岸滑坡大型物理模型试验验证了所提方法的有效性。研究成果为动水作用下库岸滑坡演化机理与稳定性的数值分析提供了一条可行途径。

Accurately obtaining multi-field information of reservoir landslides under dynamic water action is an important foundation for landslide deformation mechanism and stability analysis. Although GeoStudio and FLAC3D are commonly used numerical software for simulating multi-field information in reservoir landslides, they still have several limitations. This paper proposes a multi-field information simulation analysis method of reservoir landslide fed by GeoStudio and FLAC3D. Time-varying seepage field of reservoir landslide under dynamic water is obtained by GeoStudio firstly, and an interface program is developed to realize the fast conversion of the GeoStudio model and seepage field to FLAC3D. Subsequently, incorporating the hydro-mechanical behavior of the geological materials and the principle of effective stress, the material parameters and initial stress of the FLAC3D model are modified to calculate the deformation of the reservoir landslide to realize a fast simulation of the multi-field information evolution process of reservoir landslide under dynamic water. The validity of the proposed method is verified by a large-scale physical model test of a reservoir landslide. The research results provide a feasible way for numerical analysis of the evolution mechanism and stability analysis of reservoir landslides under dynamic water.

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国家自然科学基金项目（42307242）；湖北省自然科学基金项目（2023AFB322）；岩土钻掘与防护教育部工程研究中心开放基金（202211）；西藏自治区科技计划项目（XZ202202YD0007C）。