胶结充填体矿柱结构可靠性设计方法

The reliability design method of consolidated filling pillar structure

胶结充填体矿柱广泛应用于地下矿山 ,矿柱结构的稳定性直接关系到采矿生产安全 ,胶结充填体矿柱结构可靠性设计日益受到重视和普遍应用。传统的安全系数法不能考虑影响胶结充填体矿柱结构稳定性因素的随机性和离散性 ,因而其结论具有很大的局限性。变异安全系数法以可靠性理论为基础 ,充分考虑胶结充填体矿柱结构稳定性影响因素的随机性及其离散程度 ,计算结果更具指导性。文章从胶结充填体矿柱力学分析入手 ,分析了安全系数法的局限性 。

The consolidated filling Pillar is widely applied to underground mines.The stability of ore pillar structure directly influences the safety of mining operation.In recent years,great attention were increasely paid to reliability design method of consolidated filling pillar structure.The traditional safety coefficient method cares nothing for randomness and dispersivity of the factors of influencing stability of consolidated filling pillar structure,so the conclusion drawn by it has many limitations.But the variational safety coefficient method,based on reliability theory,cares fully them,the results of calculation are more reliable.Begining with mechanical analysis of consolidated filling pillar structure,the limitation of safety coefficient method is analysed and the variational safety coefficient method as well as its application to the reliability design of consolidated filling pillar structure are introdueed.