基于声发射监测的矿柱破裂过程试验研究

在地下开采过程中,往往留有各种不同形式的矿柱。矿柱支撑采场顶板的同时还维护采场围岩的稳定性,因此矿柱的稳定性是影响矿山安全生产的重大因素。借助声发射定位技术手段,对不同尺寸的矿柱做了一系列试验,旨在探索矿柱试件在加载过程中变形、破坏规律,并对矿柱试件的变形、破裂作出初步的预测。

Experimental studies on the process of pillar failure based on acoustic emission

In underground mining,there often remain various forms of pillars that can support the roof and main- lain the stability of surrounding rocks in the stope. So,in mining the stability of the pillars is a very important factor for the- production safety. With acoustic emission positioning technology,the paper performs a series of experiments on dif- fereol sizes of pilla,~4, with the purpose of exploring the deformation and the destruction rules in the loading process of the pillar specimens. This paper makes preliminary forecast about deformation and failure of the specimens of the pillars.