Nondestructive test on typical roadway supports of a mine via drilling core and ground penetrating radar

doi:10.4028/www.scientific.net/AMR.368-373.2411

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Nondestructive test on typical roadway supports of a mine via drilling core and ground penetrating radar
	Han, Jianping 1,2; Liu, Haipeng 2
	2012
会议日期	September 22, 2011 - September 24, 2011
会议地点	Xi'an, China
关键词	Civil engineering Geological surveys Nondestructive examination Radar Radar measurement Roadway supports Rock bolting Rock drilling Safety engineering Thickness measurement Core method Design requirements Design value Geologic environment Geological structures Ground Penetrating Radar Ground penetrating radars Mine safety Non destructive Non-destructive test Potential threats Supporting structure Surrounding rock Underground construction Underground environment Underground production Via drilling
卷号	368-373
DOI	10.4028/www.scientific.net/AMR.368-373.2411
页码	2411-2416
英文摘要	Temporary or permanent supports are necessary in underground construction for maintaining the stability and limiting the damage of surrounding rock. Due to the uncertainty of geological structure, the specificity of the underground environment as well as other factors, the quality and performance of supporting structure are often difficult to satisfy the design requirements, which not only seriously affects the normal construction and operation of mines but also has the potential threat to the safety of underground production. In order to investigate the influence of the unfavorable geologic environment on supporting concrete and evaluate the real performance of roadway supports of a mine, 17 typical projects were chosen and the strength of supporting concrete was detected by nondestructive drilling core method. The result shows that the strength is widely less than the design value. Furthermore, 4 projects of them were investigated by the ground penetrating radar (GPR) in order to evaluate the feasibility of GPR in the performance investigation of the roadway supports of a mine. The results indicate that ground penetrating radar is capable of measuring the thickness of the support, the distribution of rebars and the defects of the surrounding rock.
会议录	Advanced Materials Research
会议录出版者	Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany
语种	英语
ISSN号	10226680
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/115952]
专题	土木工程学院教务处（创新创业学院）
作者单位	1.Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou, Gansu 730050, China 2.Institute of Earthquake Protection and Disaster Mitigation, Lanzhou University of Technology, Lanzhou, Gansu 730050, China;
推荐引用方式 GB/T 7714	Han, Jianping,Liu, Haipeng. Nondestructive test on typical roadway supports of a mine via drilling core and ground penetrating radar[C]. 见:. Xi'an, China. September 22, 2011 - September 24, 2011.