摘要
为了探明淮南潘一煤矿主井井筒掘进前方F32断层准确位置及富水情况,针对单一地球物理方法存在认识多样性与结果多解性的问题,提出采用反射地震法和瞬变电磁法相综合的多参数综合物探方法对F32断层进行超前探测;并辅以数值模拟与物理模型试验对井筒掘进前方地质条件超前探查进行了系统研究。研究结果表明:多种物探方法进行综合超前探测可以提升对掘进前方地质条件解释的准确率,其中反射地震波法可以定位地质界面位置,瞬变电磁法基于电性特征分析可以判断构造的富水特征,并可以辅助判定地质界面位置。现场应用得出F32断层的位置在-786.8~-792.8m段,岩层整体含水性不强;探测结果为井筒设计及安全施工提供参考。
In order to find out the exact location and water rich situation of F32 fault in front of the main shaft driving in Panyi Coal Mine in Huainan,in view of the diversity of knowledge and multi solutions of results in a single geophysical method,a multi parameter comprehensive geophysical method combining reflection seismic method and transient electromagnetic method is proposed to detect F32 fault in advance.In addition,the advance exploration of geological conditions in front of shaft driving is systematically studied using numerical simulation and physical model test.The research results show that the comprehensive advance detection of various geophysical methods can improve the interpretation accuracy of the geological conditions ahead of the excavation,in which the reflected seismic wave method can locate the geological interface,and the transient electromagnetic method can judge the water rich characteristics of the structure based on electrical characteristics,and can assist in determining the location of the geological interface.The field application shows that the fault F32 is located in the section of-786.8~-792.8 m,and the overall water content of the rock stratum is not strong,the detection results provide technical parameters for the mine design and safe construction of the shaft,and also provide reference for similar projects.
作者
郭立全
张平松
李圣林
胡富彭
GUO Li-quan;ZHANG Ping-song;LI Sheng-lin;HU Fu-peng(School of earth and environment,Anhui University of Science and Technology,Huainan 232001,China;Key Laboratory of Mine Geological Disaster Prevention and Environmental Protection of Anhui Higher Education Institutes,Huainan 232001,China)
出处
《煤炭工程》
北大核心
2021年第1期43-46,共4页
Coal Engineering
基金
国家重点研发计划项目(2016YFC0600900)
国家自然科学基金(41702177)
安徽省自然科学基金(1808085QD102)。
关键词
立井井筒
掘进地质条件
综合探查
反射地震波法
瞬变电磁法
vertical shaft
excavation geological conditions
comprehensive exploration
reflection seismic wave method
transient electromagnetic method
