张集矿(北区)主井出煤系统工程量大，施工复杂。
Opens gathers assemble the main shaft amount producing coal system engineering in mine (northern district) greatly, it is complex to build.
论述了张集矿北区17278工作面瓦斯综合治理的必要性。
The necessity of gas comprehensive management of the 17278 face, north district, Zhangji Coal Mine is discussed.
介绍了张集矿立井基岩段水文地质和基岩地面预注浆的有关情况。
Hydrogeology of the basement section and prior ground injection of pulp into it are described for the shafts of Zhangjimine.
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