在先露天后井工的开采条件下，研究了井工开采对露天边坡稳定性的影响过程。

The presented article employs numerical simulation to analyze the stability of the open pit slope when mining in the open pit slope and mine.

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利用环境同位素技术追踪傍河水源地开采条件下的河水激发补给过程和补给强度。

With the environmental isotope technique, the induced recharge of river water under pumping condition in water source site adjacent to the river has been probed.

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根据短壁开采条件下保护煤柱的布设特点，建立由保护煤柱支承的关键层力学分析模型。

The mechanical model of key strata supported by coal pillar is set up according to the layout of coal pillars in the coalface of short wall mining.

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