The development and achievements of modern coal mining with stowing are discussed in this paper. The necessity of developing coal mining with stowing is briefly summarized and internal damage within the strata and ext...The development and achievements of modern coal mining with stowing are discussed in this paper. The necessity of developing coal mining with stowing is briefly summarized and internal damage within the strata and external damage on surface induced by longwall working with caving are discussed. Technological features of coal mining with pneumatic stowing in Germany, and fully mechanised coal mining with solid dense stowing in China, are discussed. In German hard coal mining stowing technologies are for technical, infrastructural and economical reasons not applicable. The discussion includes the stowing material transportation system, the stowing machine, and processes at the face. Progressiveness and application universality of China's fully mechanised coal mining with solid dense stowing are illustrated through practical examples with different conditions. Obviously, the fully mechanised coal mine with solid dense stowing can be improved by automaion systems. This paper discusses further developmental potential of the technology.展开更多
The National Mineral Resources Planning(2016-2020)issued by the Ministry of Land and Resources specifies national planning of 9copper mining area across the country.1.Baijiazuizi Copper Nickel Mine The Baijiazuizi cop...The National Mineral Resources Planning(2016-2020)issued by the Ministry of Land and Resources specifies national planning of 9copper mining area across the country.1.Baijiazuizi Copper Nickel Mine The Baijiazuizi copper nickel mining area is a super-large copper nickel deposit in Jinchang City with total proven reserves of 3.展开更多
Thisarticle discussesthe urgency andsignificane of mining coal under villages .On reviewingthe test methodsof mining coalunder villages inChina duringthe past 40years, the article also analyses the experiences obtaine...Thisarticle discussesthe urgency andsignificane of mining coal under villages .On reviewingthe test methodsof mining coalunder villages inChina duringthe past 40years, the article also analyses the experiences obtained therefrom. Thearticle finally puts forward technical solutionsfor coal mining under villages and also pinpoints the problems to be solved.展开更多
文摘The development and achievements of modern coal mining with stowing are discussed in this paper. The necessity of developing coal mining with stowing is briefly summarized and internal damage within the strata and external damage on surface induced by longwall working with caving are discussed. Technological features of coal mining with pneumatic stowing in Germany, and fully mechanised coal mining with solid dense stowing in China, are discussed. In German hard coal mining stowing technologies are for technical, infrastructural and economical reasons not applicable. The discussion includes the stowing material transportation system, the stowing machine, and processes at the face. Progressiveness and application universality of China's fully mechanised coal mining with solid dense stowing are illustrated through practical examples with different conditions. Obviously, the fully mechanised coal mine with solid dense stowing can be improved by automaion systems. This paper discusses further developmental potential of the technology.
文摘The National Mineral Resources Planning(2016-2020)issued by the Ministry of Land and Resources specifies national planning of 9copper mining area across the country.1.Baijiazuizi Copper Nickel Mine The Baijiazuizi copper nickel mining area is a super-large copper nickel deposit in Jinchang City with total proven reserves of 3.
文摘Thisarticle discussesthe urgency andsignificane of mining coal under villages .On reviewingthe test methodsof mining coalunder villages inChina duringthe past 40years, the article also analyses the experiences obtained therefrom. Thearticle finally puts forward technical solutionsfor coal mining under villages and also pinpoints the problems to be solved.
