韩城矿区煤炭资源有利开采区块辨识的原理与方法  

Principle and methods of identifying favorable mining blocks of coal resources in Hancheng Mining Area

作　　者：孙学阳[1,2,3] 张齐 夏玉成 杜荣军[1,2,3] 郭晨 SUN Xueyang;ZHANG Qi;XIA Yucheng;DU Rongjun;GUO Chen(College of Geology and Environment,Xi’an University of Science and Technology,Xi’an 710054,China;Shaanxi Provincial Key Laboratory of Geological Support for Coal Green Exploitation,Xi’an 710054,China;Geological Research Institute for Coal Green Mining,Xi’an University of Science and Technology,Xi’an 710054,China)

机构地区：[1]西安科技大学地质与环境学院,陕西西安710054 [2]陕西省煤炭绿色开发地质保障重点实验室,陕西西安710054 [3]西安科技大学煤炭绿色开采地质研究院,陕西西安710054

出　　处：《煤炭科学技术》2020年第11期232-240,共9页Coal Science and Technology

基　　金：国家自然科学基金资助项目(41272388,51674195);陕西省煤炭绿色开发地质保障重点实验室基础研究计划资助项目(Mty2019-08)。

摘　　要：地质灾害是煤矿安全生产的主要影响因素。开展矿区煤炭资源开采有利区块辨识,进行开采区块合理划分,对煤炭资源的精准、安全、高效开采具有指导作用。本文以韩城矿区3煤、11煤为研究对象,分别以可采煤层厚度、地质构造相对复杂程度、水害危险性、瓦斯地质灾害危险性为一级评价指标,对开采区块进行划分;根据4个一级指标划分出的等级,采用图形层次叠加分析法,将各指标的图形依次叠加,将韩城矿区内开采区块划分为:不利开采区块、可改造开采区块、较有利开采区块和有利开采区块。研究结果表明:矿区3煤主要为可改造区块和不利区块;11煤考虑顶板水对煤炭开采的影响,主要为较有利区块和可改造区块,考虑底板水的影响主要为不利开采区块和可改造区块。将研究结果与矿区已开采区域的实际情况对比分析可知,区内已发生的瓦斯突出、突水等事故的位置都位于综合评判的可改造区块内,一定程度上反映了采用的判识方法可行,判识结果可信。Geological disasters are the main influencing factors of coal mine safety production,which seriously threaten people’s life and property safety.Identification of favorable coal mining blocks and rational division of mining blocks in mining areas have a guiding role in accurate,safe and efficient mining of coal resources.In this paper,the No.3 and No.11 coal seams in Hancheng Mining Area are taken as the research objects,and the thickness of the minable coal seam,the relative complexity of geological structure,the risk of water damage and the risk of gas geological disaster are respectively taken as the first-level evaluation indexes to divide the mining blocks.According to the grades of the four first-level indicators,the graph hierarchy superposition analysis method is adopted to superimpose the graphs of each indicator in turn,and the mining blocks in Hancheng Mining Area is divided into unfavorable mining blocks,reformable mining blocks,more favorable mining blocks and favorable mining blocks.The results show that the No.3 coal seam in the mining area is mainly the reformable blocks and the unfavorable blocks.Considering the influence of roof water on coal mining,No.11 coal seam is mainly more favorable and reformable block,while considering the influence of floor water,it is mainly unfavorable mining block and reformable block.By comparing and analyzing the research results with the actual situation of the mining area,it can be seen that the locations of gas outburst,water inrush and other accidents that have occurred in the area are all located in the comprehensively judged reformable block of comprehensive evaluation,which to some extent reflects that the identification method adopted is feasible and the identification result is credible.

关 键 词：煤炭资源 有利区块辨识 层次叠加分析 韩城矿区 

分 类 号：P622.1[天文地球—地质矿产勘探] TD163[天文地球—地质学]