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。
The ecological environment of the mining area in northern Shaanxi is fragile.The large-scale exploitation and utilization 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 underground spatial distribution law is accurately depicted,and the direction of goaf grouting filling is pointed out.
作者
张思达
高翔
刘龙吉
ZHANG Sida;GAO Xiang;LIU Longji(Shaanxi Tiandi Geology Co.,Ltd.,Xi’an 710054,China)
出处
《陕西煤炭》
2024年第8期78-83,共6页
Shaanxi Coal
基金
陕西省煤田地质集团重大专项项目:陕北生态脆弱区采空区矸石水力充填关键技术研究(SMDZ-2022ZD-1)
陕西省重点研发计划一般项目:陕北生态脆弱区采空区矸石充填及生态效益评价(2023-YBSF-544)
陕煤联合基金项目:煤矿高矿化度水形成机理及赋存规律研究——以陕北榆横矿区为例(2021JL-14)。
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
transient electromagnetic exploration
goaf
spatial distribution
coal gangue
geologic inference
grouting filling
