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- mine shaft sinking winch 凿井绞车
- The mine shaft sinking with a mine shaft drilling is a reliable mine shaft construction method to pass through a deep and thick alluvium. 钻井法凿井是通过深厚冲积层最可靠的竖井施工方法。
- mine shaft sinking with mine shaft drilling 钻井法凿井
- Shaft sinking winch GB/T15112-1994凿井绞车
- mine shaft sinking 凿井
- For hoist and lifting winch for mine shaft, its joint of lifting container and steel wire should adopt wedge type cappel. 煤矿竖井用提升机和提升绞车，其提升容器与提升钢丝绳的连接，应采用楔形连接装置；
- This paper briefly intro-duced the practice of longhole blast shaft-formirg method for blind shaft sinking in Tongshan Copper Mine. 本文简要介绍了深孔爆破成井法在铜山铜矿盲竖井掘进中的实践。
- This paper in detail presented the transition of shaft sinking equipment for drift excavation in Wangershan Gold Mine. 摘要:介绍了在山东省望儿山金矿立井施工中,利用立井凿井设施进行平巷施工的改装方法。
- A bucket used for conveying ore or coal up a mine shaft. 桶框把生铁或煤运上矿井的框
- The rigging for hauling or lifting located at the head of a mine shaft. 在矿井顶部杆上用于提升某物的索具
- The security of freezing wall is the key problem of freezing shaft sinking in deep alluvium. 冻结壁的安全性是深厚冲积层中冻结凿井的关键问题。
- They got through into the flooded mine shaft,and rescued the comrades. 他们努力进入水淹的矿井，救出了同志们。
- They got through into the flooded mine shaft, and rescued the comrades. 他们努力进入水淹的矿井，救出了同志们。
- This text introduced the practice method of the box permanent steel petroleum derrick shaft sinking in the construction of vertical shaft pit shaft. 在立井井筒建设中,我们在原设计的基础上,对箱形永久钢井架凿井的实际方法作了改进。
- A set of deep-hole blasting parameters for deep vertical shaft sinking is obtained by optimization of the blasting agents,shothole lengths and cut manners. 哈尔乌素项目部采用现代电子测绘技术与爆破技术相结合,提出一种中深孔爆破炮孔精确定位的新方法,很好地解决了这一问题。
- Through analysis to rock mechanics combining engneering practice,boltiong with with wire mesh and shotcreting passing soft stratum was solved in shaft sinking. 通过对岩土力学分析,结合工程实践,解决了立井施工中采用锚网喷支护通过松散围岩段这一难题。
- As often before, birds are acting like the canaries in a mine shaft and giving us early warning of dangerous change. 和以往一样，鸟类的反应正如‘煤矿里的金丝雀’，提前给我们鸣响警钟。”
- Teenage boys clamber down mine shafts 30 to 50 meters deep. 孩子们沿着杆子爬到深30到50米的矿井里。
- Mine shaft raised is the keg of mine production ,move at high speed and word throughout the year. 矿井提升是矿山生产的咽喉,高速运行,常年工作。
- A deep hole or shaft sunk into the earth to obtain water, oil, gas, or brine. 井陷入土地中，用来取水、油、气或咸水的深孔或竖井
