According to the conditions of the surface coal mine in Heidaigou, the semi-continuous mining system for loess stripping was put forward, and the feasibility of this system was studied.

根据黑岱沟露天煤矿的条件，研究了黄土剥离采用半连续工艺的可行性及方式。

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Roak spoil removal system of mine surface is to ensure mine roak spoil removal requirement, and to realize a key link of coal production continued development of mines.

矿井地面排矸系统是保证矿井矸石排放需求，实现矿井煤炭生产持续稳定地增长的关键环节。

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To recover the remainder coal in the side slope walls of surface mine by use of underground coal winning method can increase coal recovery rate and mine economic effect.

采用地下台阶式开采法回采露天矿端帮煤可大大提高煤炭资源回收率和矿山经济效益；

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Enveloped in a smog of coal dust that softens the sunlight into a hazy glow is the An Tai Bao surface coal mine.

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More than 60% of all coal mined in the UK is produced by the Doncaster-based company at collieries or surface mine sites principally located in the west and east Midlands, Yorkshire and the North East.

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Today (July 14), Peabody announced a deal with the Xinjiang Uyghur Autonomous Region of China to develop a 50 million ton per year surface mine a giant project that would rank as one of the biggest coal mines in the world.

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