Because massive small coal mine closure, causes the difficulty of mine water-proof to enlarge and threatens badly mine security.

大量小煤矿关闭后形成的积水，使得水害治理难度加大，严重威胁着矿井安全。

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The present international and home situations of mine closure planning are summarized and analyzed in this paper, whose significance in China is discussed.

总结分析了矿山关闭规划的国内外现状，并讨论了在中国开展闭矿规划的意义。

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These are mainly attributed to the mining's geological background, the distribution of mercury belt and the mercury mining scale, and the mine closure time.

在沉积物中汞含量的比较也是得到相同的结果，这主要与矿区的地质背景、汞矿带的分布、还与汞矿开采规模、汞矿停产时间有关。

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Pumps that were used to keep the mine dry have not been in operation since its closure.

VOA: special.2009.07.21

The firm is to carry out a review of its mines and while it refused to rule out mine closure, it said there would be no job losses.

BBC: NEWS | Business | Planning fears hit UK Coal shares

The strike began after workers at the Cortonwood pit near Barnsley walked out after being told their mine was scheduled for closure.

BBC: NEWS | UK | The decline of the miners' union

He said the company was also working with the government to help manage the closure of the mine.

BBC: Daw Mill: Hundreds of jobs go at fire-hit mine