ISBN: 9787564645724 - 深部开采煤自燃规律研究 (1 Ergebnisse)

paperback. Zustand: New. Paperback. Pub Date: 2019-12-01 Pages: 136 Language: Chinese Publisher: China University of Mining and Technology Press Research on the Spontaneous Combustion Law of Coal in Deep Mining is based on the coal spontaneous combustion problem existing in the deep mining process of coal mines. by simulating the same mining horizontal stress The stress state of coal seams in concentrated areas or deep high ground stress coal seams during the process of being affected by mining and repeated mining. T.…