基于物元可拓理论的煤巷围岩稳定性分级评价研究
投稿时间:2019-07-08  修订日期:2020-09-21  点此下载全文
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邓广哲 西部矿井开采及灾害防治教育部重点实验室 1525137155@qq.com 
中文摘要:煤巷不仅占据了煤炭开采中的主要成本,也是井下作业的主要场所。为了科学指导煤巷的布置、掘进、支护等工作,基于煤巷稳定性分析技术的研究现状,构建了以地质因素、巷道因素、支护因素和回采因素为准则层的煤巷围岩稳定性分级评价体系,以顶底板强度、埋深、煤层强度、异常构造影响等14项指标为指标层的煤巷稳定性分级评价指标体系。联合物元可拓理论和特尔菲理论,建立了一种评价煤巷围岩稳定性的新方法。以河曲矿区某矿21003工作面辅运巷道为例,基于特尔菲-物元可拓模型对辅运巷道围岩稳定性进行了评价,评价结果符合煤矿生产实际情况。
中文关键词:煤巷  围岩稳定性  物元可拓  特尔菲理论  评价
 
Classification of surrounding rock stability of coal tunnel based on Matter-element Extension Model
Abstract:The coal roadway is not only the main cost of coal mining, but also the main place of underground operation. In order to scientifically guide the layout, excavation and support of coal roadway, the classification evaluation system for surrounding rock stability of coal roadway is constructed based on the criterion layer of geological factors, roadway factors, support factors and other factors, with buried depth of coal seam roof and floor strength intensity anomaly tectonic 14 indicators for indexes such as layers of coal roadway stability grading evaluation index system. Combined with matter-element extension theory and Delphi theory, a new method for evaluating the stability of coal roadway surrounding rock is established.STaking the auxiliary roadway of 21003 working face of Hequ mining area as an example, the stability of surrounding rock of the auxiliary roadway is evaluated based on the delphi matter-element extension model. The evaluation result accords with the actual situation of coal mine production
keywords:Coal tunnel  surrounding rock stability  matter-element extension model  delphi theory  classification
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