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- 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。
- vertical shaft sinking 立井凿井
- An inclined or vertical shaft or passage between levels in a mine. 小暗井矿井里层与层之间倾斜的或垂直的竖坑或通道
- J. Vertical Shaft Fine Adjustment Screw. 垂直杆微调螺丝.
- The part of a vertical shaft that turns in a bearing. 轴踵轴承中能旋转的垂直的轴
- 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。
- Fracture accidents of vertical shaft lining in aquifer are introduced. 研究了表土段立井井壁的破裂情况;
- 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。
- A platform or an enclosure raised and lowered in a vertical shaft to transport people or freight. 升降机在垂直通道上载运人们或货物升降的平台或笼子
- A nearly vertical shaft or cavity worn in a glacier by surface or rock debris falling through a crack in the ice. 冰川锅穴冰川中近于直立的井穴或洞,系由冰面和岩石碎屑从冰缝中坍落而成
- 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。
- The Cave of Swallows in Mexico is a 400m vertical shaft, deep enough to engulf the Empire State Building. 原来,墨西哥的燕子洞有四百米深,足以放下整个帝国大厦!
- Elegant enclosure made by valuable log, together with gilding vertical shaft and beautiful curlicue shows magnificence. 以贵重原木构造出高雅的机壳,镀金立柱和精美花饰点缀出富丽堂煌的气质。
- The simplest form of governor consists of a pair of balls which are attached to a vertical shaft by means of arms. 形式最简单的调速器是由一对球体构成;两个球体通过臂杆连接到垂直轴上。
- Sand making machine also known as vertical Shaft Impact Crusher ,is applied widely for the powd... 发布者:吕秋平所在地:河南郑州市行业:机械及行业设备职位:外销员工作年限:二年以上
- The development of vertical shaft tunnel in former USSR is introduced in the paper. 本文对原苏联等国家的竖井式泄水道发展过程作了简要介绍,并进行了评述。
- 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;