煤矿待采孤立块段地质构造复杂程度评价
Evaluation of the Geological Structural Complexity Level in the Isolated Block Sections to Be Mined of Coal Mine Area
汪伟民 1张红梅 2吴基文 3顾承串3
作者信息
- 1. 安徽恒源煤电股份有限公司,安徽宿州 234000
- 2. 安徽理工大学地球与环境学院,安徽淮南 232001;安徽理工大学矿井水害综合防治煤炭行业工程研究中心,安徽淮南 232001
- 3. 安徽理工大学地球与环境学院,安徽淮南 232001
- 折叠
摘要
煤矿区地质构造复杂程度是煤矿安全生产时最为关心的问题之一.结合已采区探采对比结果和前期生产的经验,对比待采块段与已采采区地质构造复杂程度,可以用于指导待采块段后期的补勘设计、采掘设计、采煤方法选择,以及煤矿水害防治和瓦斯治理等.为构建煤矿区地质构造复杂程度的定量评价模型,采用"滑动窗口法"统计各评价单元指标数据,采用AHP-熵权主客观确权法确定指标权重,继而栅格加权叠加计算,完成地质构造复杂程度综合指数图,对煤矿区地质构造复杂程度进行了等级划分与评价.在上述研究基础上,对比已采区和西一采区—东一采区间待采孤立块段范围地质构造复杂程度评价结果,得出待采块段以极复杂型构造为主.最终评价结果表明,评价指标、评价方法和评价模型总体是合理的.
Abstract
The complexity of geological structures in coal mining areas is one of the most concerning issues in coal mine safety production.Comparing the complexity of geological structures between the blocks to be mined and the mined areas,and combing with the comparison results of exploration and mining in the mined areas and the experience of early production,they can be used to guide the subsequent supplementary exploration design,mining design,selection of mining methods,as well as the prevention and control of water hazards and gas control in coal mines in the later stage of the block to be mined.In order to construct a quantitative evaluation model for the complexity of geological structures in coal mining areas,the"sliding window method"was used to collect the indicator data of each evaluation unit.The weights of each indicator were ultimately determined by combining the subjective method of AHP and the objective method of entropy weight.ArcGIS software was also applied for grid weighted superposition calculation of the eight thematic maps to obtain a comprehensive index map of geological structure complexity.Finally,the complexity of geological structures in the coal mining area was quantitatively classified and evaluated.On this basis,the spatial differences of the geological structures complexity within isolated blocks were studied and quantitatively analyzed.The final evaluation results indicate that the evaluation indicators,evaluation methods,and evaluation models are generally reasonable.
关键词
地质构造复杂程度/待采孤立块段/AHP-熵权主客观法/综合指数模型Key words
complexity of geological structure/isolated block sections to be mined/the subjective method of AHP and the objective method of entropy weight/comprehensive index model引用本文复制引用
基金项目
国家自然科学基金青年基金(41902212)
矿井水害综合防治煤炭行业工程研究中心开放基金(2022-CIERC-03)
安徽理工大学高层次引进人才科研启动基金(2020yjrc23)
安徽恒源煤电股份有限公司2021年科研计划项目()
出版年
2024
NETL
NSTL
万方数据