NDLI: The safety study of bolt and cable support in shallow roadway

Content Provider	IEEE Xplore Digital Library
Author	Zhang Ming Ning Jianguo Liu Xuesheng Li Ming
Copyright Year	2011
Description	Author affiliation: Key Laboratory of Mine Disaster Prevention and Control, Shandong University of Science and Technology, Qingdao, China (Ning Jianguo; Liu Xuesheng; Li Ming) \|\| Xin Wen Mining Group Corp, Xin Tai, Shan Dong, China (Zhang Ming)
Abstract	At present, bolt-cable combined support system is still common in shallow roadway, and the design process of bolt-cable combined support system include four steps: initial design, implement design, pressure observation and modification of initial design. For modification of initial design, the rationality of support can be obtained from pressure observation that gives the prediction of deformation in roadway. However, as for whether the end of bolt and cable in surrounding rock have separated or damaged and whether the bolt and cable in surrounding rock have lost further effectiveness, it cannot help. So, evaluating the bolt-cable combined support system with new detect method has important value. This paper detects roof strata damage and working resistance of bolt (cable) in 20306 Lane Belt with Rock drilling Camera, Multi Displacement Meter and Bolt (Cable) dynamometer, analyses the development of damage (separation) in roof, and evaluates the safety of bolt or cable support system. The result shows: with the method of Rock drilling Camera, the detection of damage in surrounding rock is intuitive and true; in mining process, the number of separate zones in surrounding rock around peak pressure zones increased obviously, and cause failure of bolt and cable in this area.
Starting Page	5651
Ending Page	5655
File Size	890530
Page Count	5
File Format	PDF
ISBN	9781612847719
e-ISBN	9781612847740
DOI	10.1109/ICMT.2011.6002822
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-26
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Resistance Bolt-cable combined support system Rock drilling Camera Evaluate Coal Fasteners Rocks Cameras Safety Face
Content Type	Text
Resource Type	Article

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