Reinforced Techniques Analysis of Goaf-Side Entry at Isolated Island Coal Face Based on FLAC Numerical Simulation

Wen Hua Zha

doi:10.4028/www.scientific.net/AMR.605-607.210

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 605-607Reinforced Techniques Analysis of Goaf-Side Entry...

Reinforced Techniques Analysis of Goaf-Side Entry at Isolated Island Coal Face Based on FLAC Numerical Simulation

Abstract:

According to control problems of surrounding rock at isolated island coal face, taking isolated island coal 1251（3）face ventilation tunnel of PanSan mine as engineering background, this paper puts forward three reinforcement schemes based on the idea of turning later recovery to former reinforcement. Simulation has been done on the character of surrounding rock stress and deformation distribution and supporting structure force of three different schemes by FLAC3D. Finally optimal scheme is the third scheme. The application result show that anchor-net-cable support combined with anchor grouting support has got a good effect. The large deformation of surrounding rock is controlled efficiently and tunnel surrounding rock stable is guaranteed. The study provides a basis for goaf-side entry surrounding rock control under similar conditions.

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Periodical:

Advanced Materials Research (Volumes 605-607)

Pages:

210-214

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.605-607.210

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Online since:

December 2012

Authors:

Wen Hua Zha

Keywords:

Goaf-Side Entry, Isolated Island Coal Face, Numerical Simulation, Surrounding Rock Deformation

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