ABSTRACT

The Lianhua Temple landslide is located in Huaxian county of Weinan City, Shaanxi Province, and becomes one of the famous rock landslides with high speed and long slip distance because of its complicated geological background, the unique development characteristics, the perplexing mechanism and the long slip distance. The parent rock of the landslide is gneiss in the archean era. Well-developed gneissosities down the slope are favorable to the occurrence of landslide. The Lianhua Temple landslide is located in the BaojiTongguan fault zones, consisted of East-West or NWW complex folds and faults. The parent rock of the landslide is gneiss with welldeveloped gneissosities. The large difference between the head and the shearoutlet of the landslide is 750 m. The great height difference causes high potential energy, which can be transformed into kinetic energy for landslide in high speed. Well-developed gneissosities in parent rocks and overdeveloped tectonic joints for multiple tectonic movements provide the potential slip plane.