The Application of High-Strength Yielding Bolt in −536 Air-Return Cross-Cuts

Da-guang Yang ()
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Da-guang Yang: Shenyang Design and Research Institute of Sino-coal International Engineering Group

A chapter in Proceedings of 20th International Conference on Industrial Engineering and Engineering Management, 2013, pp 99-104 from Springer

Abstract: Abstract The underground tunnel stress increased with the increasing of coal mining depth. And the support and stability of underground tunnel is more difficult in the areas of intense tectonic activity. The scientific support technology in soft rock environment with high geostress is the key factor to ensure the deep coal mining under the condition that the tunnel bolt support effect is not ideal in deep soft rock. In practice, mine support proved that the high-strength and high-pretension anchor bolts solved the supporting problems effectively in deep mines with high ground pressure.

Keywords: Combined supporting; Deep soft rock; High geostress; High strength yieldable bolts (search for similar items in EconPapers)
Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-642-40063-6_10

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DOI: 10.1007/978-3-642-40063-6_10

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