摘要
模拟正常水位工况、特大暴雨工况和特殊工况3种条件,采用GeoStudio中的渗流和地震计算模块在不同设计工况下进行数值计算,建立某加高改造扩容后的尾矿库模型,并计算其相应的安全系数。分析结果表明:3种工况下的尾矿坝坝体均处于稳定状态,满足规范要求,特大暴雨工况时的浸润线位置随着降雨明显抬高;但在特大暴雨工况+地震工况时,尾矿坝坝体安全储备不是很大。根据建立的加高扩容尾矿坝模型对尾矿库安全运行提出了相应的建议。
In order to simulate the normal water level,heavy rain and special conditions,the seepage and seismic calculation module in GeoStudio was used to carry out numerical calculation under different design conditions,the model of a tailings pond after elevation improvement and capacity expansion was established,and the corresponding safety factor was calculated.The analysis results show that the tailings dam body is in a stable state under the three working conditions and meets the requirements of the code,and the position of the seepage line increases significantly with the rainfall under the condition of heavy rain.However,the safety reserve of tailings dam is not very large in the condition of heavy rain+earthquake.Finally,according to the established model of tailings dam with high capacity expansion,corresponding suggestions for safe operation of tailings pond are put forward.
作者
宋志飞
王越
郝宇
于云鹤
SONG Zhifei;WANG Yue;HAO Yu;YU Yunhe(School of Civil Engineering,North China University of Technology,Beijing 100144)
出处
《工业安全与环保》
2021年第5期22-24,共3页
Industrial Safety and Environmental Protection
基金
国家自然科学基金(41202214,51774163)。
