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>Study on the Theory and Method on Identification of the Mobile Block in the Face-Contacted Blocks Structure in Rocks Between Coal Seams to Mine the Left-over Coal Above the Gob
Study on the Theory and Method on Identification of the Mobile Block in the Face-Contacted Blocks Structure in Rocks Between Coal Seams to Mine the Left-over Coal Above the Gob
In mining the left-over coal above the gob,stope wall rock of mining area have hard limestone.through field observation,the face-contacted block structure was found in rocks between coal seams to mine the left-over coal above the gob.In order to probe into the movement law of rock strata and strata control measures,it is very important to identify the mobile block in face-contacted block structure of rocks between coal seams.This paper relies on the thought of block theory to establish appropriate parameter matrix and figure out its discrimination matrix in view of the fact that the block in face-contacted block structure has high intensity and stiffness,the
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机译：The study of a fuzzy set theory for the selection of an optimum coal transportation system from pit to the power plant <中文篇名〉=矿坑至电厂最佳煤炭运输系统选择的模糊理论 研究
