摘要
采空区稳定性的影响因素相当复杂,开采技术条件和人为因素都有可能成为采空区灾害的致因。本文采用层次分析法,对老鸦巢矿区采空区选用了13个采空区稳定性评价指标并进行定性分析和定量评价。通过构造AHP模型、构造比较判断矩阵并通过数学方法计算及一次性检验后,得出地质构造、高跨比、岩体结构、最大暴露面积等因素是影响采空区稳定性的主要因素。从而在本质上把握了采空区失稳的机理,为该区采空区治理提前打好基础。
The factors which affect the stability of mined - out area are quite complicated. Both the mining technology and human factors may cause disasters in mined - out area. Based on the analytic hierarchy process （ AHP）, this paper analyzes the stability evaluation indexes of 13 mined - out areas of Laoyachao ore - field by the way of qualitative analysis and quantitative evaluation. By constructing AHP model and comparative judgment matrix, but also through mathematic calculation and one -time inspection, a conclusion is obtained, which shows the geologic structure,ratio of rise to span,rock mass structure, maximum exposure area and etc. are main causes, therefore, the essential instable factors of mined - out area are found out, which will offer a good foundation to the future harnessing of this area.
出处
《中国钼业》
2009年第4期34-37,共4页
China Molybdenum Industry
基金
国家科技支撑计划课题(编号:2006BAB02A03)
2008年度中南大学米塔尔创新资助项目(编号:08MX16)
