Analyzing the Reason of Roof and Side Fall Accident in Shallow Bore Hole Stope and Its Protective Measures.
浅孔采场冒顶片帮事故原因分析及预防
The engineering practice and the numerical simulation the millisecond blasting for ditching deep bore hole.
以工程实践和动力有限元程序分析沟槽深孔微差爆破问题。
Constructional technique and quality assurance of big bore hole digging and pouring with expansion pile head
大孔径扩大桩头挖孔灌注桩施工工艺及质量保证
For example, the bore hole hosting the strain meter at the TsangWen Reservoir is in such a fractured aquifer.
如曾文水库应变仪所在位置的含水层即是一例。
Application of gas drainage method with bore hole in face roof under condition of sliding roof in Gaocheng mine
顶板钻孔瓦斯抽放方法在告成矿的应用
The paper detailedly introduced the equipment and technique of the bore hole high water jet enlarging technology.
介绍了高压水射流扩孔技术的装备和工艺。
Precipitate the Pool and Bore a Hole and Arrange the Mud and is in Charge of Accumulating the Mud Homogeneity Discussion
沉淀池穿孔排泥管积泥均匀性探讨
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