应用数值模拟技术评价矿山地压灾害

在国内外矿山安全评价领域内,主要以矿山概率风险评价为基础的评价技术,把矿井生产系统中隐患导致事故的概率与隐患造成的损害乘积作为系统状态危险度。隐患发生的概率和造成的损害是通过数据统计获得。该评价方法对隐患发生的概率和损害统计不够规范,缺乏实用性,且只讨论了采用数据的模糊性问题1]。近年来兴起的数值模拟技术是基于可视化计算软件的一种岩石破裂过程分析方法。笔者提出了用计算机模拟技术进行矿山开采过程中的安全评价新方法,该方法应用材料相似性原理,通过计算机数值模拟,解决针对矿山开采过程中采场结构参数优化、矿柱受力破坏形式、部位、范围及合理性评价等有关地压危害方面的难题。

Assessing Hazards of Underground Mine by Numerical Simulation

Up to now, the probability assessment of risk has been widely applied to evaluate the mine safety on the world. The risk of system is expressed by the probability of the risk multiplied by the damage of risk obtained from data statistics. However, this method is lack of practicability and particularity. It could only be used to discuss some blurry problems. Numerical simulation is a high technology developed during past few years, which is a new visualized method for analyzing fracture of the rock based on special software. The new technology is now applied to assess any risk in underground mines, to evaluate mine safety and to propose the suitable parameters of underground hazard in mine.