Numerical Analysis of the Recovery Rate Influence with Stowing Roadway Mining in Daizhuang Shengjian Coal Mine

Abstract:

Daizhuang Shengjian Coal Mine has dense village above the ground. Through analyzing the process of stowing roadway mining, the author establishes a numerical calculation model about the influence of recovery rate on the mining with stowing roadway. Under the condition of fixed mining width, simulating the impact of different coal pillar width on horizontal stress of coal wall, vertical stress of coal pillar and roadway roof, at the end, according to the result of the simulation, the ratio of extraction to reservation and coal recovery ratio can be determined

• Periodical: Advanced Materials Research (Volume 577)
• Pages: 177-182
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.577.177
• Online since: October 2012
• Authors: Chun Sheng Li, Jian Hao Yu, Yong Ye An, An Qi Li
• Keywords: Coal Pillar Width, Numerical Simulation, Recovery Ratio, Stowing Roadway

References

[1] Design of Daizhuang Shengjian Coal Mine stowing mining with gangue under buildings [R]. Green Mining Technology Research Center of Beijing CUMT Energy & Safety Science Co., Ltd., (2009).

[2] LIU Pengliang. Study with Numerical Simulation and Field Actual Measurement on Mining with Backstowing Roadway of Xingdong Mine [D]. China Coal Research Institute M.S. thesis, (2007).

[3] GUO Cang, TAN Zhiqiang, NIU Haipeng. The Application of FLAC3D in Mining [J]. Science & Technology Information, 2012(4): 41-42.

[4] XIE Wengbing, SHI Zhenfan, CHEN Xiaoxiang, ZHENG Baisheng. Analysis of surrounding rock activities in Partial Backfill mining [J]. journal of China university of mining and technology, 2004(3): 145－147.