Numerical Simulation Analysis of Coal Mining with Paste-like Backfill under Water Based on UDEC

Yu Dong; Yang Wu; Lei Chang Shao; Zhong Jie Duan

doi:10.4028/www.scientific.net/AMR.962-965.935

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 962-965Numerical Simulation Analysis of Coal Mining with...

Numerical Simulation Analysis of Coal Mining with Paste-like Backfill under Water Based on UDEC

Abstract:

Based on the instance of extremely thick coal seam mining under aquifer in Gonggeyingzi Coal Mine, the theoretical calculation for the height of water flowing fracture zone in this coal mine was 30.6m and calculation model was established. Analyzed by the UDEC software, the surface displacement of backfill mining was 1532mm and the height of overburden rock plastic zone was 36.5m. Compared with 135m away from coal roof to aquifer, slicing backfill mining under aquifer was confirmed to be safe and feasible based on the theoretical calculation and analysis of UDEC. The results provided the basis for the safety of extremely thick coal seam mining under aquifer in this coal mine.

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Periodical:

Advanced Materials Research (Volumes 962-965)

Pages:

935-938

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.962-965.935

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Online since:

June 2014

Authors:

Yu Dong*, Yang Wu, Lei Chang Shao, Zhong Jie Duan

Keywords:

Aquifer, Numerical Simulation, Paste-Like Backfill, Surface Subsidence, Water Flowing Fractured Zone

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* - Corresponding Author

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