摘要
煤矿隐蔽采空区是导致井下透水事故的主要原因之一。瞬变电磁法具有对低阻区敏感等明显优势,已被广泛应用于煤矿不良地质体的探测工作当中。本文基于瞬变电磁工作原理,结合新铁煤矿工程地质条件,采用现场踏勘、地面瞬变电磁探测和钻孔验证相结合的方法,明确了该煤矿隐蔽采空区范围、采空区积水量和断层富水性,取得了较好的勘探效果,表明该方法探测煤矿隐蔽采空区的有效性,对防治煤矿透水事故具有重要作用。
Concealed goaf is one of the main causes of underground water seepage accidents. Transient electromagnetic method has obvious advantages such as sensitivity to low resistivity areas, and has been widely used in the detection of unfavorable geological bodies in coal mines. Based on the working principle of transient electromagnetic, combined with the engineering geological conditions of Xintie Coal Mine, this paper uses the method of combining field survey, ground transient electromagnetic detection and borehole verification to determine the scope of the hidden goaf, the water accumulation in the goaf and the water yield of the fault, and has achieved good exploration results, which shows that the method is effective in detecting the hidden goaf of the coal mine, and plays an important role in preventing and controlling the water seepage accident of the coal mine.
作者
蒲文龙
丁洁琼
PU Wen-long;DING Jie-qiong(School of Safety Engineering,Heilongjiang University of Science and Technology,Harbin 150022,China)
出处
《价值工程》
2023年第4期152-156,共5页
Value Engineering
基金
国家自然科学基金面上项目(52074110)。
关键词
煤矿突水
瞬变电磁法
隐蔽采空区
coal mine water inrush
transient electromagnetic method
concealed goaf
