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[会议论文] 作者：R.H.Sun,W.P.Li,
来源：The International Symposium and 9th Asian Regional Conferenc 年份：2013
Destruction rules of the overlying rock is the key to research to leave the reasonable water coal rock pillars about mining under the water, which is the ob...
The research of structure characteristics of huge thick loose sediment and impact of mining activiti
[会议论文] 作者：Y.X.Tian,R.H.Sun,
来源：The International Symposium and 9th Asian Regional Conferenc 年份：2013
Most of the mining area in our countrys eastern and central regions are covered by the Cainozoic loose sediment, the thickness general is 200-400m,but in southwest regions, the thickness is 500-800m.D...
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