Abstract：The model test method employed in Jinping I Hydropower Station on the whole high slope is presented to evaluate the actual effects. A new upside load with bottom dynamic load test method for the slope modeling is also proposed to simulate and analyze the stability of high slope under upwards normal load，the dynamic impact effect under blasting wave；and the failure process and the safety degree of slope under overload are also given. The test results show that the deformation of high slope engineering is small without slope failure under the normal load；and there is no crack and thus the slope will not fail. In addition，with reinforced structures under bottom with dynamic blasting load at construction site，the slope will also not fail，but slope cracks and possible failure are traced mostly outside the reinforced zone of slope under increasing overload ultimately. The complete processes of deformation and failure are verified by the test. The stress distribution，deformation characteristics and failure trend of the high slope are achieved. The deformation and failure caused by the maximum principal stress in slope are also simulated. The geostress effect and mechanical mechanism under unloading are studied. The results show that reinforcements adopted in the slope are effective and acceptable，and the global high slope is stable during construction. The further techniques for slope safety are therein suggested：anchorage structures should be highly effective，the slope rock damage should be avoided，and field monitoring and information feedback should be implemented perennially in later period for slope engineering. It can be found that the model test is also effective for other high slope projects.
LIU Li，CHEN Rui，QIAO Gaoqian. MODEL TEST RESEARCH ON GLOBAL STABILITY OF LEFT BANK HIGH SLOPE OF JINPING I HYDROPOWER STATION. , 2010, 29(05): 952-959.
