2014•Energy and Energy ConservationRequires access

Analysis of Roof Weighting and Top Coal Caving at Low Top Coal Caving Face

Shen Wang

Abstract

With the working face in mining area of Wangping Coal Electrycity Company as an example,analyzes the process of top coal caving,summarizes the characteristics of roof weighting of fully mechanized low top coal caving,and calculates the roof weighting at top coal caving face.Observes and summarizes the roof movement at fully mechanized caving face of Wangping Electrycity Company,predicts and assesses the periodic weighting of working face accurately.To ensure the order and safe production of the working face,it should be ensured that the working face it is unaffected by the the roof weighting when it is ended.

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Available abstract

Key concepts: Roof, Weighting, Coal, Face (sociological concept), Mining engineering, Engineering, Coal mining, Process (computing)