CAJ | 학술논문

针对我国华北东部煤矿井开采深度迅速增加,矿井岩溶水害日益加重的客观问题,文章分析讨论了深矿井开采的基本概念,通过统计分析,得出中国东部主要煤矿井目前开采深度达到600m左右且以12 m/a左右的速度向深部延伸的变化趋势.从华北东部地区沉积古地理环境与地壳运动演化史方面分析了该地区厚层奥陶纪灰岩的形成及其后期岩溶发育过程.通过对研究区几个重点矿区揭露的奥陶系灰岩岩溶发育特征在穿层和顺层方向上随深度变化规律的分析,揭示出华北东部主要煤矿区奥陶系灰岩岩溶发育特征在垂向上具有弱-强-弱和顺层方向上随埋深具有由强到弱的变化规律.提出了华北东部煤矿深部开采将面临的岩溶水害问题及其防治水技术思路.
침대아국화북동부매광정개채심도신속증가,광정암용수해일익가중적객관문제,문장분석토론료심광정개채적기본개념,통과통계분석,득출중국동부주요매광정목전개채심도체도600m좌우차이12 m/a좌우적속도향심부연신적변화추세.종화북동부지구침적고지리배경여지각운동연화사방면분석료해지구후층오도기회암적형성급기후기암용발육과정.통과대연구구궤개중점광구게로적오도계회암암용발육특정재천층화순층방향상수심도변화규률적분석,게시출화북동부주요매광구오도계회암암용발육특정재수향상구유약-강-약화순층방향상수매심구유유강도약적변화규률.제출료화북동부매광심부개채장면림적암용수해문제급기방치수기술사로.
Focused on the problems of karst water hazard with mining depth, the paper discusses the concept of deep coal mining. The present mining depth reaches about 600 m and increases 12 m per year in key coal mines of eastern North China on the basis of on statistical information. Karst process and karst results of Ordovician limestone in eastern North China coal mine were analyzed from historical sedimentary environment and geological evaluation. The karst extent changed with the regularity of weak to strong to weak in vertical section and strong to weak along the same rock layer with depth in the coal mine region on the basis of observation and survey information. Some suggestions for deep coal mine water control are given.