Effective Filling Rate in Filling Mining’s Influence on Overlying Strata’s Movement

Jian Hao; Yong Kui Shi; Min Hua Qi; Lei Zhang

doi:10.4028/www.scientific.net/AMR.734-737.741

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 734-737Effective Filling Rate in Filling Mining’s...

Effective Filling Rate in Filling Mining’s Influence on Overlying Strata’s Movement

Abstract:

Similarities and differences of overlying strata movement rule and abutment pressure distribution between filling stope and traditional strope was analysied guided by “practical mine pressure control theory ”. The admissible condition of strata’s depending from bending failure to caving was put forward, and caving zone’s height was analysied on the basis of this. Results showed that caving zone’s height and resistant force required by hydraulic pillar would decrease leapingly ,until the lowest strata transfer into the main roof, and when pressure was stable main roof’s maximum subsidence would become smaller. With the increase of the effective filling rate, filling body’s supporting degree to overlying would increase, when the filling rate reaches to a value, Coal wall’s edge would not appear the plastic zone, the abutment pressure curve is monotone decline with the peak near coal wall edge .

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Periodical:

Advanced Materials Research (Volumes 734-737)

Pages:

741-745

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.734-737.741

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Online since:

August 2013

Authors:

Jian Hao, Yong Kui Shi, Min Hua Qi, Lei Zhang

Keywords:

Abutment Pressure Distribution, Caving Zone, Effective Filling Rate, Strata’s Movement

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References

[1] MIAO Xie-xing, ZHANG Ji-xiong. Analysis of Strata Behavior in the Process of Coal Mining by Gangue Backfilling[J]. Journal of Mining ＆ Safety Engineering, 2007,24(3).

Google Scholar

[2] Hao Jian.The Feasibility Study on Filling Mining of Coal Resourse on Top of High-Presure Water[D].Master Degree Paper of Shandong University of Science and Technology, 2012.

Google Scholar

[3] SHI Yongkui. Simulation and Application of The Dynamic Structural Mechanics Model of Working Face[D].Taian Shandong University of Science and Technology, 2001.

Google Scholar

[4] Yunliang Tan, Shiliang Wu and Zengde Yin: Mining pressure and strata control [M] (Coal Industry Press, 2008, 2, In Chinese).

Google Scholar

[5] QIAN Minggao, MIAO Xiexing,XU Jialin. Theoretical study of key stratumin ground contro l[ J] . Journal of China Coal Society, 1996, 21.

Google Scholar