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- freezing shaft sinking method 冻结法
- 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。
- 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;
- conventional shaft sinking method 习用凿井方法
- Keywords rilling shaft sinking method;piston effect;under current;current cross section;cutter disc; 钻井;活塞效应;潜体;过流断面;刀盘;
- ground freezing shaft sinking 冻结凿井
- 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。
- 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。
- special shaft sinking methods 特殊向下凿井法
- The contrast of theory calculation and test results verifies the rationality of joint rigidity model of prefabricated arc board of freezing shaft wall. 通过理论计算与试验结果的对比，验证了冻结井预制弧板井壁接头刚度模型的合理性。
- 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。
- With the geometrical size and temperature exchange value of the mine shaft, the possibility of the cracking on the mine freezing shaft would be increased with the depth of the overburden. 在井筒的几何尺寸及温度变化值确定的情况下,冻结立井随着表土段深度的增加,破裂的可能性在随之增大。
- 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。
- Research on freezing pressure in deep thick alluvium is in great need with the increase in depth of frozen shaft. 随冻结法凿井深度的增加,我国对深厚冲积层冻结井冻结压力分布的研究需求已经十分迫切。
- cementation and grouting method for shaft sinking 注浆凿井法
- 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。
- 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
- high - strength freezing shaft wall 高强冻结法井壁
- 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
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