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针对目前尾矿坝干滩长度无统一控制标准的现状,提出了根据允许水力坡降、允许最大流量、浸润面埋深以及边坡稳定性等判据确定尾矿坝干滩长度的方法。分析了尾矿渗透系数、尾矿填筑速度、排渗设施以及尾矿坝坝高等因素对尾矿坝干滩长度的影响:当尾矿的渗透系数较小、尾矿填筑速度较快、排渗设施效果较差以及尾矿坝坝高较高时,应适当增加尾矿坝的干滩长度。分析表明,依据文中所提判据可以很好地确定尾矿坝的干滩长度,相对于传统方法提高了计算精度,该方法具有一定的可行性可靠性。
Aiming at the current situation that there is no uniform control standard for the length of tailing dam, the method to determine the length of the tailings dam based on the allowable hydraulic gradient, the maximum allowable flow, the depth of infiltration surface and the slope stability criteria is proposed. The effects of tailings permeability coefficient, tailings filling velocity, drainage facilities and high tailing dam on the length of dry-land beach of tailings dam are analyzed: when the tailings have a small permeability coefficient and tailings filling speed is relatively fast, Drainage infiltration facilities ineffective and tailings dam height is higher, it should be an appropriate increase in tailings dam dry beach length. The analysis shows that the length of dry beach of tailings dam can be well determined based on the criteria mentioned in the paper, and the calculation accuracy is improved compared with the traditional method. This method has certain feasibility and reliability.