zhu jian ming zuo ping (3 Ergebnisse)

paperback. Zustand: New. Paperback.Pub Date:2021-09-01 Pages:207 Language:Chinese Publisher:China University of Mining and Technology Press For the technical problems encountered. the research method combining field observation. laboratory test. theoretical analysis and numerical simulation calculation is used to summarize and propose the gas gushing law of low permeability coal seam. the deformation mechanism and supporting technology of surrounding rock in the roadway of soft coal seam. and the low permeability coa.

paperback. Zustand: New. Paperback.Pub Date:2021-09-01 Pages:207 Language:Chinese Publisher:China University of Mining and Technology Press For the technical problems encountered. the research method combining field observation. laboratory test. theoretical analysis and numerical simulation calculation is used to summarize and propose the gas gushing law of low permeability coal seam. the deformation mechanism and supporting technology of surrounding rock in the roadway of soft coal seam. and the low permeability coa.

paperback. Zustand: New. Paperback. Pub Date: 2016-02-01 Pages: 302 Language: Chinese Publisher: Science Press mining rock mass mechanics and coordinated control of the whole space Practicing Our main coal mining involved in mining rock mechanics and damage surrounding rock control problems. including large mining height fully mechanized caving face in three dimensions stress test to stress and deformation discontinuous neuron inversion mining macro microscopic failure mechanism of rock. deep strata movement monitori.