Wang Fawu, Chen Ye, Liu Weichao, et al. 2022. Characteristics and challenges to dynamics of long-runout landslides with high-altitude in southeast Tibet[J]. Journal of Engineering Geology, 30(6): 1831-1841. doi: 10.13544/j.cnki.jeg.2022-0734.
    Citation: Wang Fawu, Chen Ye, Liu Weichao, et al. 2022. Characteristics and challenges to dynamics of long-runout landslides with high-altitude in southeast Tibet[J]. Journal of Engineering Geology, 30(6): 1831-1841. doi: 10.13544/j.cnki.jeg.2022-0734.

    CHARACTERISTICS AND CHALLENGES TO DYNAMICS OF LONG-RUNOUT LANDSLIDES WITH HIGH-ALTITUDE IN SOUTHEAST TIBET

    • Southeast Tibet is an important strategic region in China,because of its special geographical location,rugged topography and abundant hydraulic power resources. Several major projects were planned and constructed in southeast Tibet. Affected by internal and external dynamic geological factors such as tectonic uplift,seismic activities,marine glaciers,stereoscopic climate and engineering construction activities,long-runout landslides with high-altitude occurred in this region intensively. Such geological disasters seriously threaten the safety and operation of major projects. Due to characteristics of high abruptness,large impact force and wide scope of disaster,it is difficult to explain the initiation mechanism,reveal the landslide dynamics and predict the landslide movement. It is necessary to break through the important scientific problems. These problems include (1) the characteristics of disaster-inducing environment,(2)the landslide distribution discipline in southeast Tibet,(3)the initiation mechanism of brittle rock with high-altitude,(4)the mechanism of motion style transformation and (5)the mechanism of landslide mass fluidization. It is urgent to establish the dynamics of long-runout landslides with high-altitude,which can provide a theoretical basis for geological disaster risk prevention and guide the planning and construction of major projects. Advancing relevant research is of great practical significance to the sustainable development of southeast Tibet.
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