摘要
以云南某尾矿库为例,研究了静、动力条件下尾矿库内部结构的变形和稳定性,采用FLAC3D软件尾矿库进行数值模拟并进行计算,计算结果表明采用FLAC3D软件对尾矿库进行数值模拟计算是可靠并且是可行的,静力条件下尾矿库最大沉降位移约为0.5 m,主滑方向最大位移量0.4 m,动力条件下尾矿库尾矿颗粒最大沉降位移约为0.4 m,主滑方向最大位移量约为0.35 m。综上,采用一次性筑坝结合模袋法堆积尾矿的方式可以有效的提高尾矿库的稳定性,同时,还应考虑地震动力对于尾矿库稳定性的影响,必要时应采取相应的加固措施。
Take a tailings pond in Yunnan as an example, The deformation and stability of the internal structure of the tailing dam under static and dynamic conditions have been studied. FLAC3 D software tailings library for numerical simulation and calculation. The calculation results show that the numerical simulation calculation of the tailing pond using FLAC3 D software is reliable and feasible. The maximum settlement displacement of the tailings pond under static conditions is 0.5 m, Maximum displacement in main slip direction is 0.4 m, The maximum settlement displacement of the tailing pond under dynamic conditions is 0.4 m. The maximum displacement in the main slip direction is about 0.3 m.To sum up, The one-time dam-building method combined with the method of stacking tailings can effectively improve the stability of the tailings pond. At the same time, the influence of seismic power on the stability of the tailings pond should also be considered, and corresponding reinforcement measures should be taken when necessary.
作者
何向荣
徐鹏飞
HE Xiang-rong;XU Peng-fei(Kunming Prospecting Design Institute of China Nonferrous Metal Industry co,.Ltd.Kunming 650051,China)
出处
《地质灾害与环境保护》
2020年第3期77-81,共5页
Journal of Geological Hazards and Environment Preservation
关键词
尾矿库
FLAC3D
稳定性评价
地震
模拟与分析
Tailings dam
FLAC3D
evaluation of stability
earthquake
simulation and analysis
