Title: Determination on Experiment Formula of "Two Zone" Development Height in Overburden Strata under Fully Mechanized Top Coal Caving Mining
Abstract: A experiment formula of two zone suitable for the mining in the thin seam and medium thick seam slice could be found in the Regulations of Mining in seams under the surface buildings,water body and railway and the coal pillars left in those seams and around the mine main shaft and roadways,but there was no related formula for references under conditions of fully mechanized top coal caving mining.With the collection and study on the two zone heights measured in the domestic several fully mechanized top coal caving miming faces,the experiment formula of the two zone height in the fully mechanized top coal caving mining face under the medium hard or soft weak overburden strata was summarized,the verification on the liner relationship significance and the analysis on the reliability was conducted and suitability of the formula was verified at the site.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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