针对陇中盆地广泛存在的黄土-泥岩接触面滑坡灾害，选取典型的液化-长距离滑移型地震滑坡为代表，在滑坡原型案例研究的基础上，从地形地貌特殊性、斜坡结构特殊性、岩土体结构特殊性、地下水赋存特殊性等几个方面揭示此类滑坡的孕灾环境，提出地质模式。考虑地震、降雨和地下水综合作用下液化-长距离滑移型黄土-泥岩接触面滑坡特殊性，通过细微观测试、微米CT原位三轴试验、室内动力学实验、大型离心机振动台试验以及数值仿真技术等有机结合，开展水震耦合条件下黄土-泥岩接触面滑坡变形失稳特征及成因机制研究，探索黄土-泥岩接触面滑坡液化-远距离滑移的宏细观动因，揭示水震耦合条件下滑坡液化的启动机制、长距离滑移机制，确定斜坡失稳临界位移，为陇中盆地及其相似地区的地震危险性定量评价奠定基础，为水震耦合条件下液化-滑移型滑坡灾害的早期识别和预警提供理论依据，为抗震设计和精准减灾防灾提供科学技术支撑.

Loess-mudstone interface landslides develop widely in longzhong basin, typical liquefaction-slip earthquake landslides were selected. Based on the study of the landslide prototype, the background of such landslides was revealed from the landform particularity, slope structure particularity, rock mass structure particularity, groundwater environment particularity, and geological model is put forward. Considering the particularity of loess-mudstone interface landslides characterized by liquefaction and long-distance slip under the coupling action of earthquake, rainfall and underground water, micrometer CT in-situ triaxial tests, mesoscopic & microscopic tests, indoor dynamic tests, numerical simulation experiments and shaking table tests of large leotechnical centrifuge is combined. The deformation and failure characteristic of loess-mudstone interface landslide under the coupling action of water and earthquake is studied. The macro-mesoscopic dynamic factors of loess-mudstone interface landslides characterized by liquefaction and long-distance slip are explored, the start mechanism and the long slip mechnism under the coupling action of water and earthquake are revealed and the critical displacement of slope instability is determined. It will lay a foundation for quantitative evaluation of seismic risk in longzhong basin and the similar areas, provied a theoretical basis for the early identification and early warning of liquefaction-slip landslide disaster under the coupling action of water and earthquake, and provide scientific and technical support for seismic design and accurate disaster reduction and prevention.