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: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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May 2018	8	10	2	20
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Feb 2025	30	13	4	47
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Apr 2025	21	16	3	40
May 2025	34	10	0	44
Jun 2025	41	8	0	49
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Aug 2025	27	16	1	44
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Oct 2025	26	12	4	42
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Cumulative views and downloads (calculated since 30 May 2016)

Month	HTML	PDF	XML	Total
May 2016	14	2	0	16
Jun 2016	36	11	2	49
Jul 2016	15	5	1	21
Aug 2016	21	2	0	23
Sep 2016	6	1	0	7
Oct 2016	2	2	1	5
Nov 2016	40	8	2	50
Dec 2016	44	10	1	55
Jan 2017	30	20	0	50
Feb 2017	11	6	1	18
Mar 2017	39	23	13	75
Apr 2017	19	10	11	40
May 2017	30	15	10	55
Jun 2017	21	14	5	40
Jul 2017	16	13	3	32
Aug 2017	11	12	5	28
Sep 2017	15	17	3	35
Oct 2017	14	16	10	40
Nov 2017	12	16	7	35
Dec 2017	8	27	4	39
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Feb 2018	6	11	3	20
Mar 2018	16	18	5	39
Apr 2018	13	13	3	29
May 2018	8	10	2	20
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Oct 2024	22	2	1	25
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Feb 2025	30	13	4	47
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Aug 2025	27	16	1	44
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Oct 2025	26	12	4	42
Nov 2025	15	4	0	19

Latest update: 18 Nov 2025

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.