利用瞬变电磁技术评价火烧区烧变岩的富水性  

Evaluating Water Abundance of Burnt Rocks in Fire Zone Using Transient Electromagnetic Technique

作　　者：汝亮 钟伟杰 朱裕振 沈礼峰 周明磊 

机构地区：[1]山东省煤田地质规划勘察研究院,山东泰安271000

出　　处：《华北地震科学》2013年第4期37-40,共4页North China Earthquake Sciences

基　　金：国家自然科学基金项目"中远距离隧道掌子面前方水体病害超前预报方法研究";项目编号:40774066

摘　　要：烧变岩积水使得矿井安全生产存在隐患,利用瞬变电磁技术对大南湖煤矿北露天火烧区进行勘查,通过视电阻率断面图和视电阻率水平切片图,结合地质资料对火烧区烧变岩的富水性进行评价,并绘制含水烧变岩底板等高线图,圈定出含水烧变岩的范围,探测结果与钻探验证结果基本吻合。为煤矿安全开采和水文勘探提供了可靠的技术支持。Water in Burnt rock may lead to hidden trouble to safety in production.We detect the burning area in Da Nanhu coal mine using transient electromagnetic technology.Through cross-section and horizontal slices of the apparent resistivity,combining with geological information,we evaluate the water richness of burnt rocks in fire zone,draw the bottom plate contour map of burnt rocks,and delineate the range of burnt rocks.The detection results are basically tallies with the drilling verification.It provides a reliable technical support for safe production of coal mine and hydrologic exploration.

关 键 词：瞬变电磁法 火烧区 烧变岩 水文勘探 

分 类 号：P631.325[天文地球—地质矿产勘探]