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- shaft sinking cycle 凿井工篆环
- 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。
- 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。
- 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。
- 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 a shaft sinking method adapted to go through unstable water bearing strata in thick alluvium, special shaft sinking methods have experienced major development in China during the past decades. 特殊凿井技术作为深厚表土不稳定含水地层的井筒施工方法,数十年来在我国得到了很大的发展,目前我国的冻结法凿井应用之广在世界上已名列前茅;
- 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
- 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
- cementation and grouting method for shaft sinking 注浆凿井法
- deep shaft sinking technique in ancient China 中国古代深井开凿技术
- construction survey of deep shaft sinking 沉井法施工测量
- The pedal of a cycle is attached to a crank. 自行车的踏板与曲柄相连。
- mine shaft sinking with mine shaft drilling 钻井法凿井
- construction with drop shaft sinking 沉井施工
- conventional shaft sinking method 习用凿井方法
- The cargo is unloaded safely from the sinking ship. 货物被安全地从沉船上卸下。
- It's easier to cycle with the wind behind you. 顺风骑车省力。
