An Analysis on Influencing Factors of Interlayer Separation of Complex Roof in Deep Coal Mining

Abstract:

In order to control construction face instability of complex roof and predict roof collapse in deep coal mining, by numerical simulation, distribution of normal stress and interlayer separation of construction surface were calculated and influencing factors on separation of construction surface were analyzed in different conditions. The conclusions were drawn that original rock stress, rock characters, rock thickness and tunnel width had obvious influence and cohesion and friction angle of construction surface had little influence on separation of construction surface.

• Periodical: Advanced Materials Research (Volumes 146-147)
• Pages: 976-979
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.146-147.976
• Online since: October 2010
• Authors: De Yi Wu, Ai Lang Wang, Hua Qiang Liang
• Keywords: Influencing Factors on Interlayer Separation, Interlayer Separation Distribution of Construction, Normal Stress Distribution of Construction, Numerical Simulation

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