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为了研究尾矿库溃坝后水流和尾砂对下游的影响,基于水流N-S方程和RNGκ-ε紊流模型建立了三维水动力溃坝模型,并采用推移质方程和悬移质方程进行尾砂的输运计算,利用水槽溃坝试验验证了所建数学模型的准确性。进而利用该数学模型模拟了九江市城门山铜矿拟建尾矿库溃坝情况,通过设置相应的监测点,从流速场、水深和尾砂淤积三个方面分析溃坝水砂对下游村庄的影响。结果表明,尾砂并未对下游村庄安全造成影响,而水流将淹没下游部分村庄。
In order to study the effect of tailings flow and tailings on the downstream after dam-break, the three-dimensional hydrodynamic failure model was established based on the flow NS equation and the RNG κ-ε turbulence model, and the tailing sand equation Transport calculations, the use of sink dam test to verify the accuracy of the mathematical model built. Then, the mathematical model was used to simulate the dam-break of the tailings dam of the Chengmenshan Copper Mine in Jiujiang. By setting the corresponding monitoring points, the effects of dam-break water and sand on the downstream villages Impact. The results showed that the tailings did not affect the safety of the downstream villages, while the water flow would inundate some of the villages in the downstream.