Variety rules of concrete strain of outer shaft wall were carried out based on in-situ measurement during freeze sinking of Longgu Mine auxiliary shaft.
通过龙固副井冻结凿井期现场实测，获得了龙固副井外层井壁混凝土应变的变化规律。
Design method and basic principle for ABB elevator master control program is analysed taking Fanshan phosphate Mine auxiliary shaft elevator as an example.
以矾山磷矿副井提升机为例，分析abb提升机主控程序的设计方法和基本原理。
This paper introduces the work principle of four-quadrant operating high-pressure frequency converter, and its application in coal mine auxiliary shaft winch innovation system.
介绍了四象限运行高压变频器的工作原理，并应用到煤矿副井绞车改造系统。
The measuring method and its accuracy analysis for extension and piercing of new auxiliary shaft in Fankou Lead Zinc Mine are mainly introduced in this paper.
介绍了凡口铅锌矿新副井延深贯通工程实践中的测量方法及其精度分析。
This paper takes the construction technology handling the submerged Wells of the auxiliary shaft of one mine as an example and shows that the technology of grouting can achieve good economic results.
文章以某矿副井井筒淹井灾害处理施工工艺为例，采用注浆的施工方法进行抢修，取得了良好的经济效果。
This paper takes the construction technology handling the submerged Wells of the auxiliary shaft of one mine as an example and shows that the technology of grouting can achieve good economic results.
文章以某矿副井井筒淹井灾害处理施工工艺为例，采用注浆的施工方法进行抢修，取得了良好的经济效果。
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