Experimental analysis on bolt interference during advanced water detection with the mine transient electromagnetic method

作     者：Xiong-Wu HU Ping-Song ZHANG Jia-Ping YAN Pei-Gen LI 

作者机构：School of Earth and Environment Anhui University of Science and Technology Huainan 232001 China Fuzhou Huahong Aptitude Science Development Co. Ltd. Fuzhou 350004 China 

基　　金：Supported by the Key Projects of Anhui Provincial Scientific and Technological Program (11010401015) the Key Program of National Natural Science Foundation of China (51134012) 

出 版 物：《Journal of Coal Science & Engineering(China)》 (煤炭学报（英文版）)

年 卷 期：2013年第19卷第3期

页      码：407-413页

摘      要：During advanced water detection using the transient electromagnetic method, the exploration effect for water-rich area is often poor due to the interference of bolts that are distributed in different positions in working face. Thus, the study on the interference characteristics of bolts in different states has important directive significance for improving the acquisition quality and data processing method in water detection. Based on the analysis of the distribution laws of magnetic field excited by small multi-turn coincident loop in full space of homogeneity, the test on the interference of bolts has been designed in the mine. Through drilling 18 holes around the overlapping coil in the working face, mass data are collected in order with the posi- tion change and the exposed bolt length. The results of comprehensive data analysis show that the transient electromagnetic field is strongly interfered as the distance between the bolt and the center of the coil is less than 3 m, and the interference varies greatly as the distance varies. On the other hand, the field induced by the bolts can be ignored as the distance exceeds 3 m. The findings can help to improve data acquisition and correction during advanced water detection when using the transient electromagnetic method.

主 题 词：mine transient electromagnet advanced detection mine testing ground bolt interference attribute 

学科分类：081801[081801] 081901[081901] 081802[081802] 0819[工学-海洋工程类] 08[工学] 0818[工学-交通运输类] 

D　O　I：10.1007/s12404-013-0324-z

馆 藏 号：203965733...