Liaoning University

Beijing Chengtian Hengye Coal Mine Equipment Co. Ltd

Zhicai Chen

Yishan Pan

Hongying Wang

Lianpeng Dai

Aiwen Wang

Yonghui Xiao

The present invention discloses a self-anchored opposite-pulling anti-impact anchor cable for sectional coal pillars and a using method thereof. The anchor cable includes a steel strand (), with an energy-absorbing and yielding terminal () and a stressed expansion-cracking terminal () respectively fixed to two ends of the steel strand, a bushing () sleeved outside the steel strand, a first lock () provided at one end of the steel strand and a second lock () provided at the other end of the steel strand; the stressed expansion-cracking terminal includes a self-anchored bushing () with a plurality of pre-splitting lines () arranged in the wall of the self-anchored bushing. Under stress, the wall of the self-anchored bushing cracks along the pre-splitting lines and bends and expands, so that it abuts against and is self-anchored to the edge of a sectional coal pillar at the outer side.

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Beijing, China

Zhicai Chen