石膏矿房柱式开采矿柱稳定性分析

Gypsum Mine Room and Pillar Mining Pillar Stability Analysis

以辽阳文东石膏矿为工程实例,通过室内实验的方法,对静水状态下石膏矿石的在不同浸水时段的抗压强度进行了深入的研究;并采用极限平衡理论的研究方法,对房柱式开采的矿房和矿柱的合理尺寸进行了设计,并对矿柱的稳定性进行了深入的分析。结果表明:在自然状态和浸水状态下,辽阳文东石膏矿"采8 m留6 m"的房柱式开采设计方案,矿柱的安全系数均大于一般性建筑物的安全系数1.5的要求,能保证矿柱的稳定性,从而进行安全生产。

Liaoyang Wendong gypsum mine as an example,the compressive strength of gypsum ore at different soaking time was studied by means of laboratory experiments; The reasonable size of room and pillar mining stope and pillar was designed and the stability of the pillar was analyzed in depth by using the method of limit equilibrium theory; Result showed that in the state of nature and immersion,Liaoyang East gypsum mine using room column design of mining 8 m stay 6 m,the safety factor of the pillar is greater than the safety factor of 1. 5,which can guarantee the stability of the pillar and carry out safety production.