For the safety of mining underground, the tailings piled up in collapse area must be solidified.
为了保证地下采矿的安全，在塌陷区堆放的尾砂必须经过固化处理。
Coal mining-induced cliff rock cracking and collapse enhanced hydraulic connection between the landslide and the cliff, indirectly increased the precipitation area of the landslide.
采煤活动诱发的危岩体开裂和崩塌，加强了滑坡体与危岩体的水力联系，间接扩大了滑坡体的受雨面积。
Due to the special geologic conditions of Jinchuan mining area, the phenomena of roof collapse in local drifts is quite common.
金川矿区由于其特殊的地质条件，巷道局部发生冒顶的现象较多。
Collapse of mined-out area is an environmental geological hazard of the coal mining area.
采空区塌陷属于煤矿区的环境地质灾害问题。
Lijiagou mine severely damaged by unauthorized and wasteful mining, Mining-out area large stope collapse frequently, great impact on mine production and safety.
李家沟矿区受民采破坏严重，空区众多，采场塌陷频繁，对矿山生产和安全影响极大。
Because of water outburst by hidden conducting Karst collapse column at the mining area of Renlou coal mine, the flood was caused in 1996, which causes losses up to 3.5 hundred million yuan.
1996年任楼煤矿首采面曾因隐伏导水陷落柱突水，引发淹井灾害，造成3.5亿元的重大经济损失。
Treating of Mining collapse is a worldwide problem, which exists in Western countries such as Ruhr mining area in German.
采空塌陷治理是一个世界性难题，西方发达国家包括德国著名的鲁尔矿区都曾不可避免地遇到类似难题。
Treating of Mining collapse is a worldwide problem, which exists in Western countries such as Ruhr mining area in German.
采空塌陷治理是一个世界性难题，西方发达国家包括德国著名的鲁尔矿区都曾不可避免地遇到类似难题。
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