细粒尾矿库地下渗流场的数值模拟分析

Numerical Calculation Analysis About Seepage Field of Fine Grained Tailings Pool

龙都尾矿库的初始设计堆积物是铁矿与铜矿的混合尾矿,但该尾矿库投入使用至今仍未有铁矿尾矿注入,直接影响到了尾矿库的稳定性.为此,以龙都尾矿库的勘探实测资料为依据,利用2D-FLOW有限元软件对其渗流特性进行了研究.根据初期坝透水性、干滩面长度和不同的大气降雨量等影响因素,对尾矿坝渗流场进行了分析,得出了不同状况下细粒尾矿库的渗流规律,据此对尾矿库的稳定性进行了研究,结果表明,尾矿堆积物的改变对尾矿库的稳定产生了不良影响,如不及时对尾矿库进行适当的加固处理,该尾矿库将无法正常运行.

The initially designed deposits of the Longdu tailings pool is the mixed tailings of iron ore and covelline. However, the fact that no iron ore tailings have been infused into the pool during its employment directly influenced its stability. By making use of 2D limited meta-softwares, the authors study the seepage features of Longdu tailings pool based on the tested data and material for it. According to first dam penetration, dry slope's length and different atmosphere rainfalls, the seepage field of the tailings pool is analyzed so they can conclude seepage rules for the fine grained tailings pool under different conditions and then study the stability features of the tailings pool. The result shows that change of the deposits gives ill effect on the stability of the pool, and the tailings pool will not run normally if no proper reinforce measure is taken in time.