ANALYSIS OF STATIC LIQUEFACTION AND NUMERICAL SIMULATION FOR TAILINGS POND UNDER HIGH DEPOSTING RATES
LIU Yang1，2，ZHAO Xuetong3，WU Shunchuan1，2
(1. Department of Civil Engineering，University of Science and Technology Beijing，Beijing 100083，China；2. Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mines，University of Science and Technology Beijing，Beijing 100083，China；3. Beijing Geological and Mining Engineering Construction Co.，Ltd.，Beijing 100016，China)
Abstract：An elastoplastic constitutive model considering static liquefaction of tailings sand was proposed in the framework of critical state soil mechanics. The constitutive model was embedded into the software FLAC to simulate the static liquefaction phenomena of tailings pond. The predicted results from the numerical simulation of undrained triaxial tests using the proposed model have a good agreement with the experimental data of samples of sand-silt mixtures，which proved the capability of the model to describe the mechanical response of tailings sand. A typical case of liquefaction of tailings dams were chosen to validate the proposed model. The simulated results of the case show that the static liquefaction can happen in certain areas of the pond and serious failure of flowing sliding may occur with the rising of pore water pressure under the condition of high depositing rate.
刘 洋1，2，赵学同3，吴顺川1，2. 快速冲填尾矿库静力液化分析与数值模拟[J]. 岩石力学与工程学报, 2014, 33(6): 1158-1168.
LIU Yang1，2，ZHAO Xuetong3，WU Shunchuan1，2. ANALYSIS OF STATIC LIQUEFACTION AND NUMERICAL SIMULATION FOR TAILINGS POND UNDER HIGH DEPOSTING RATES. , 2014, 33(6): 1158-1168.
2014, Vol. 33 
