采矿与安全工程学报2017，Vol.34Issue(2)：348-354,7.DOI:10.13545/j.cnki.jmse.2017.02.022
基于Mathews稳定图等方法的多角度采空区群稳定性分析评价
Mathews-stability-method-based multi-angle analysis and evaluation of mined-out zones stability
摘要
Abstract
Stopes at the third mid-piece and above of Hongling Lead-Zinc Mine have been mined out, leaving number of goafs of high risk without management. In order to ensure the safety of subsequent mining activities, stability of the mined-out areas has been analyzed in three steps. First, spatial geomet-ric parameters of the structural planes is gained with the advanced photogrammetry, and the preliminary stability evaluation of rock mass from the point of engineering geologic (BQ,RMR) was conducted. Second, the discrete crack network model of structural surface was built to analyze the degree of crush-ing in surrounding rock from the point of numerical simulation. Third, the stability of the upper sur-rounding rock was studied from the point of engineering experience based on Mathews stability method. Combining regular geological method with numerical simulation and engineering experience, the re-search multi-angle layer-layer progressive, this method obtained the accurate and comprehensive analy-sis results of continuous mined-out zones stability, as well as the corresponding stability and damage area in surrounding rock with different properties. The research result has significant guidance value to safe mining.关键词
数字摄影测量/裂隙岩体参数表征/破碎程度/Mathews稳定图法/矿房稳定性Key words
digital photogrammetry/parameters characterization of fractured rock mass/degree of crushing/Mathews stability method/stope stability分类
矿业与冶金引用本文复制引用
胡高建,杨天鸿,胡忠强,于庆磊,赵永,周靖人..基于Mathews稳定图等方法的多角度采空区群稳定性分析评价[J].采矿与安全工程学报,2017,34(2):348-354,7.基金项目
国家重点基础研究发展计划(973)项目(2013CB227902) （973）
国家自然科学基金项目(51574060,51404067,51574059) （51574060,51404067,51574059）
