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“我国的科技队伍是一支具有高度觉悟和爱国热忱,富于献身精神,能够承担国家的重大科技任务,敢于闯难关、打硬仗的队伍,他们为国家为民族立下了伟大的功勋！”李鹏总理讲的这番话,包含着对大同矿务局1.8万名工程技术人员的赞许。 注水软化顶板 根除悬顶之患 煤层之间坚硬的岩石瞬时大面积塌落(俗称“冒顶”),会造成惨重的矿井破坏和人员伤亡。通常,国内外采用的遏制办法,不仅难以遏制“冒顶”之灾,还会产生大面积悬顶区的隐患。 1979年7月,一批潜心顶板控制研究的科技人员,受工作面断层有水,顶板易碎的启发,选取四老沟矿2号层
“Our science and technology team is a team with a high degree of awareness and patriotic enthusiasm, full of dedication, being able to undertake the major scientific and technological tasks of the country, and daring to break through the storm and fighting tough battles. They have made great contributions to the nation for the nation.” Premier Li Peng’s remarks contain the approval of Datong Mining Bureau’s 18,000 engineering and technical personnel. Water softening roof to eradicate the roof of the coal between the hard rock instantaneous large area collapse (commonly known as “roof”), can cause heavy mine damage and casualties. Generally, the deterrent measures adopted at home and abroad are not only difficult to curb the “roof catastrophe”, but also create the hidden danger of large-area canopies. In 1979 July, a group of science and technology personnel devoted to roof control research, Inspired by the fault of the working face and the fragile roof, the No. 2 layer of Silougou Mine