口孜东矿5煤物性特征和直流电法超前探测低阻阈值的确定  

Coal No.5 Physical Property Features and Low-resistivity Threshold Value Determination through Direct Current Prospecting Advanced Detection in Kouzidong Coalmine

作　　者：李宏泽 赵磊 周官群 陈兴海 李洪明 杨玉冰 曹煜 王宗涛 Li Hongze;Zhao Lei;Zhou Guanqun;Chen Xinghai;Li Hongming;Yang Yubing;Cao Yu;Wang Zongtao(China Coal Xinji Energy Co.Ltd.,Huainan,Anhui 232001;Hefei University of Technology,Hefei,Anhui 230000;Anhui Huizhou Geological Security Research Institute Co.Ltd.,Hefei,Anhui 230000;University of Science and Technology of China,Hefei,Anhui 230000)

机构地区：[1]中煤新集能源股份有限公司,安徽淮南232001 [2]合肥工业大学,合肥230000 [3]安徽惠洲地质安全研究院股份有限公司,合肥230000 [4]中国科学技术大学,合肥230000

出　　处：《中国煤炭地质》2021年第10期155-161,共7页Coal Geology of China

基　　金：中煤新集科研项目(ZMXJ-LZ-JS-2020-1)。

摘　　要：为提高新集矿区直流电法超前探成果解释的准确性,需确定矿区内直流电法超前探测结果的阈值。通过矿区典型钻孔的测井曲线,顶底板钻孔的现场电阻率实测资料,将新集矿区口孜东矿5煤顶底板岩层进行合并简化,得到口孜东矿5煤顶底板实际地层的简化地质-地电模型,并设置了6种顶底板不同含水情况的正演模型,获得了基于矿区实际地质-地球物理模型下的直流电法超前探测模拟结果,确定了直流电法超前探的低阻阈值。通过实际探测验证,该阈值具有一定的参考意义。To promote interpretation accuracy of direct current prospecting advanced detection results in the Xinji mining area,should determine threshold value of the results.Through typical borehole well logging traces,roof and floor borehole site resistivity measured information have carried out coal No.5 roof and floor strata convergence and simplification in the Kouzidong coalmine,Xinji mining area,worked out roof and floor fact stratigraphic simplified geological-geoelectric model.Six roof and floor different water-bearing status forward models have been set up.Thus direct current advanced detection simulated results based on mining area actual geological-geophysical model have been acquired,and determined low-resistivity threshold value.Through practical detection verified,the threshold value has certain reference significance.

关 键 词：新集矿区 5煤 地质-地电模型 直流电法 

分 类 号：P631.3[天文地球—地质矿产勘探]