2010•Coal TechnologyRequires access

Research on Laws of Strata Behaviors at Fully Mechanized Caving Coal Face in Two Soft and One Hard and Unstable Coal Seam

Huang Cheng-fei

Abstract

Based on the observation and analysis of mining pressure at the fully mechanized caving coal face in Yun-mei NO.2 Coal Mine,the paper discussed the characteristics of the strata behavior at the fully mechanized caving coal face in the two-soft and one-hard unstable coal seam,and evaluates the adaptability of its support,it will provide scientific evidences for safety management of the roof.It also gives guidan ce and reference for mining at the fully mechanized caving coal face on similar conditions.

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Key concepts: Roof, Coal, Mining engineering, Coal mining, Adaptability, Face (sociological concept), Engineering, Hard coal