瞬变电磁勘探技术在采空区空间探测中的应用
Application of transient electromagnetic exploration technology in spatial detection of goaf
张思达 1高翔 1刘龙吉1
作者信息
- 1. 陕西天地地质有限责任公司,陕西西安 710054
- 折叠
摘要
陕北矿区生态环境脆弱,煤炭资源的大规模开发利用及煤矸石外排诱发了以地表沉陷为主,并发地下水位下降、土地沙漠化加剧、土壤污染等一系列生态环境问题.分析现有煤矸石处理技术,结合陕北地区煤矿特点,煤矸石最彻底有效的处置方式就是井下充填,而查明煤矿采空区空间分布规律,是进行采空区注浆充填的前提条件.采用瞬变电磁探测技术,对小保当煤矿112207工作面地下空间进行探测,通过分析该工作面瞬变电磁的电性规律,精确刻画出地下空间分布规律,为采空区注浆充填指明了方向.
Abstract
The ecological environment of the mining area in northern Shaanxi is fragile.The large-scale exploitation and utili-zation of coal resources and the discharge of coal gangue have caused a series of ecological environmental problems,such as surface subsidence,groundwater level decline,land desertification intensification and soil pollution.Based on the analysis of the existing coal gangue treatment technology and the characteristics of coal mines in northern Shaanxi,the most thorough and effective disposal method of coal gangue is underground filling,and finding out the spatial distribution law of goaf is the prerequisite for the goaf grouting filling.The underground space of Xiaobaodang Coal Mine's 112207 working face is probed by the transient electromagnetic detection technology,the electrical law of the transient electromagnetic is analyzed,the un-derground spatial distribution law is accurately depicted,and the direction of goaf grouting filling is pointed out.
关键词
瞬变电磁勘探/采空区/空间分布/煤矸石/地质推断/注浆充填Key words
transient electromagnetic exploration/goaf/spatial distribution/coal gangue/geologic inference/grouting filling引用本文复制引用
基金项目
陕西省煤田地质集团重大专项项目(SMDZ-2022ZD-1)
陕西省重点研发计划一般项目(2023-YBSF-544)
陕煤联合基金项目(2021JL-14)
出版年
2024
国家科技期刊平台
NSTL
万方数据