河南老鸦岔金矿区泥石流灾害治理工程设计

Prevention and Controlling of Mud-rock Flow Disaster in Laoyacha Goldmine Area in Henan Province

以疏导山洪和泥石过境的挡渣坝防治工程为例,通过对不同坝型结构方案的对比,选择圬工透水梳齿坝为设计方案,对河南老鸦岔金矿区泥石流灾害进行治理工程设计,并对洪峰流量、拦渣坝坝顶溢流口过流量、挡渣坝稳定性进行了验算,通过该工程的治理使矿山部分地段的地质环境得到初步恢复,并对小秦岭矿区地质环境治理工程起到了积极的示范作用。

This paper discusses the engineering design of the residue-blocking dam for the prevention and controlling of mud-rock flow disaster in Laoyacha goldmine area.By the comparison of different kinds of dam structure,the permeable masonry comb dam was chosen as the design plan.The flood discharge,the runoff of the crest overflow of the residue-blocking dam and the stability of the residue-blocking dam were calculated.The implementation of this project has restored the geological environment of some sections of the mine area and set up a good example for the prevention and controlling of the geological environment of Xiaoqinling mine area.