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为了开展司家营铁矿南区充填法采矿的可行性论证以及开采设计参数优化,通过渗流-应力耦合数值正交试验,建立了南区开采的优化模型,揭示地下开采对地表岩移和渗流场的影响。计算结果表明:采用充填法采矿,不会产生地面塌陷;开采过程中围岩中的水会向采空区涌出,主要集中在第一阶段和第二阶段的采场当中,可能产生危险,应提早防范。
In order to carry out the feasibility study of filling mining method in the south of Sijiaying Iron Mine and the optimization of mining design parameters, an optimization model of mining in the southern area was established by means of numerical simulation of seepage-stress coupling experiment to reveal the influence of underground mining on surface rock movement and seepage The impact of the field. The calculation results show that mining by filling method will not produce ground collapse; water in the surrounding rock will gush out to the goaf in the mining process, which is mainly concentrated in the stopes in the first and second stages, which may cause danger, Should be early to prevent.