Roadway backfill method to prevent geohazards induced by room and pillar mining: a case study in Changxing coal mine, China

Zhou, Nan; Li, Meng; Zhang, Jixiong; Gao, Rui

doi:https://doi.org/10.5194/nhess-16-2473-2016

Articles | Volume 16, issue 12

https://doi.org/10.5194/nhess-16-2473-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/nhess-16-2473-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 16, issue 12

Research article

|

29 Nov 2016

Research article |

| 29 Nov 2016

Roadway backfill method to prevent geohazards induced by room and pillar mining: a case study in Changxing coal mine, China

Nan Zhou, Meng Li, Jixiong Zhang, and Rui Gao

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Final revised paper (published on 29 Nov 2016)
Preprint (discussion started on 30 May 2016)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Main Comments', Anonymous Referee #1, 19 Jun 2016
- AC1: ''Reply to comments by anonymous referee #1', M. Li', Meng Li, 19 Aug 2016
RC2: 'Use of backfill to reduce risk of failure and subsidence in room and pillar mining', Anonymous Referee #2, 23 Jun 2016
- AC2: '''Reply to comments by anonymous referee #2”', Meng Li, 19 Aug 2016

Short summary

Coal mines in the western areas of China experience low mining rates and induce many geohazards when using the room and pillar mining method. In this research, we proposed a roadway backfill method during longwall mining to target these problems. The surface monitoring data shows that the ground basically had no obvious deformation after the implementation of the roadway backfill method.