井下瞬变电磁法超前探测中锚杆干扰定量评价

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (0 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract During the process of roadway construction in mine，the effect of advanced water exploration using transient electromagnetic method is often poor because of the interferences of electromagnetic field，in which the metal interfering the most. So，the study for the interference characteristic of metal has an important significance to improve the technology of advanced water exploration. For advanced detection，the roof bolt can be suggested as the main interference source，and the experiment of entity model is designed as its practical situation in working face. The test data analysis shows that the interference degree and stamp of roof bolt are decided by its own spatiality，including the plane coordinates(x，y) and the exposed length(L). The maximum jamming range of roof bolt d is confirmed as 3 m primarily. Among this range，the areas interfering strongly range from 0m to 1.5m and the weak range from 1.5 m to 3.0 m. And the sensitive variation range of interference by the roof bolt?s exposed length distribution is delimitated from 0 m to 0.5 m，but the range from 0.5–1.7 m remains basically stable. In addition，through the contrast between the superposed and measured values，the values of combination interference signal induced by two roof bolts are approximately equal to the vertical stacking of the amplitude of transient electromagnetic field induced by any one of roof bolts respectively. The achievements can provide a rule for the research on the technology of interference correction of metal. Last，the paper point that the validity of test data influenced by roof bolts need an intensive study.

Key words： mining engineering roadway construction advanced detection by mine transient electromagnetic method physical model experiment roof bolt interference vertical stacking of signal

Received: 25 July 2012

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors

Cite this article:

URL:

https://rockmech.whrsm.ac.cn/EN/Y2013/V32/Is2/3275

[1] 刘树才，刘志新，姜志海. 瞬变电磁法在煤矿采区水文勘探中的应用[J]. 中国矿业大学学报，2005，34(4)：414–417.(LIU Shucai，LIU Zhixing，JIANG Zhihai. Application of TEM in hydrogeological prospecting of mining district[J]. Journal of China University of Mining and Technology，2005，34(4)：414–417.(in Chinese)) [2] 岳建华，姜志海. 矿井瞬变电磁探测技术与应用[J]. 能源技术与管理，2006，(5)：72–75.(YUE Jianhua，JIANG Zhihai. Technique and application of transient electromagnetic method in mine[J]. Energy Technology and Management，2006，(5)：72–75.(in Chinese)) [3] 于景邨，刘志新. 用瞬变电磁法探查综放工作面顶板水体的研究[J]. 中国矿业大学学报，2007，36(4)：542–546.(YU Jingcun，LIU Zhixin. Transient electromagnetic detecting technique for water hazard to the roof of fully mechanized sub-level caving face[J]. Journal of China University of Mining and Technology，2007，36(4)：542–546.(in Chinese)) [4] 于景邨，刘志新，刘树才. 深部采场突水构造矿井瞬变电磁法探查理论及应用[J]. 煤炭学报，2007，32(8)：818–821.(YU Jingcun，LIU Zhixing，LIU Shucai. Theoretical analysis of mine transient electromagnetic method and its application in detecting water burst structures in deep coal stope[J]. Journal of China Coal Society，2007，32(8)：818–821.(in Chinese)) [5] 王东伟，刘志新，武俊文，等. 矿井瞬变电磁法在巷道迎头超前探测中的应用[J]. 工程地球物理学报，2011，8(4)：403–407.(WANG dongwei，LIU Zhixin，WU Junwen，et al. Application of mine transient electromagnetic method to advanced detecting of roadway head[J]. Chinese Journal of Engineering Geophysics，2011，8(4)：403–407.(in Chinese)) [6] 刘志新. 矿井瞬变电磁场分布规律与应用研究[博士学位论文][D]. 北京：中国矿业大学，2007.(LIU Zhixin. Study on the distribution and application of mine transient electromagnetic field[Ph. D. Thesis][D]. Beijing：China University of Mining and Technology，2007.(in Chinese)) [7] 姜志海，岳建华，刘树才. 多匝重叠小回线装置形式的矿井瞬变电磁观测系统[J]. 煤炭学报，2007，32(11)：1 152–1 156.(JIANG Zhihai，YUE Jianhua，LIU Shucai. Experiment of mine transient electromagnetic observation system of small multi-turn coincident configuration[J]. Journal of China Coal Society，2007，32(11)：1 152–1 156.(in Chinese)) [8] 刘志新，刘树才，刘仰光. 矿井富水体的瞬变电磁场物理模型实验研究[J]. 岩石力学与工程学报，2009，28(2)：259–266.(LIU Zhixin，LIU Shucai，LIU Yangguang. Research on transient electromagnetic field of mine water-bearing structure by physical model experiment[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(2)：259–266.(in Chinese)) [9] 刘志新，焦险峰. 矿井富水体的瞬变电磁场物理模型实验研究[J]. 煤炭学报，2011，36(11)：1 852–1 857.(JIANG Zhihai，JIAO Xianfeng. Physical experiment of mine transient electromagnetic advanced detection[J]. Journal of China Coal Society，2011，36(11)：1 852–1 857.(in Chinese)) [10] 于景邨，刘树才，王扬州. 巷道内金属体瞬变电磁响应特征及处理技术[J]. 煤炭学报，2008，33(2)：1 403–1 408.(YU Jingcun，LIU Shucai，WANG Yangzhou. Response characteristic of transient electromagnetic to metallic faclities in coal mines and the disposal technology[J]. Journal of China Coal Society，2008，33(2)：1 403– 1 408.(in Chinese)) [11] 张欢，彭刘亚. 矿井瞬变电磁场井下人文噪声干扰物理模拟[J]. 工程地球物理学报，2010，7(6)：679–683.(ZHANG Huan，PENG Liuya. Effect of human noise of physical simulation experiments on mine transient electromagnetic surveying[J]. Chinese Journal of Engineering Geophysics，2010，7(6)：679–683.(in Chinese)) [12] 杨海燕. 矿用多匝小回线源瞬变电磁场数值模拟与分布规律研究[博士学位论文][D]. 北京：中国矿业大学，2009.(YANG Haiyan. Study on numerical simulation and distribution regularity of transient electromagnetic field with mine-used multi small loop[Ph. D. Thesis][D]. Beijing：China University of Mining and Technology，2009.(in Chinese)) [13] 王华军. 阻尼系数对瞬变电磁观测信号的影响特征[J]. 地球物理学报，2010，53(2)：428–434.(WANG Huajun. Characteristics of damping coefficient effect on transient electromagnetic signal[J]. Chinese Journal of Geophysics，2010，53(2)：428–434.(in Chinese)) [14] 张平松，刘盛东，李培根，等. 矿井瞬变电磁探测技术系统与应用[J]. 地球物理学进展，2011，26(3)：1 107–1 114.(ZHANG Pingsong，LIU Shengdong，LI Peigen，et al. Mine transient electromagnetic technology system and its application[J]. Progress in Geophysics，2011，26(3)：1 107–1 114.(in Chinese))