1 Coal Mine,the transformation reasoms and plan of the central air shaft are analyzed.
文章依据刘桥一矿采掘接替,分析了刘桥一矿中央风井改造的原因、改造方案,以及中央风井改造后的通风系统优化。
In the light of the nature of the parallel lines and the straight line equation,the formula of air shaft central coordinate was calculated, the key problem of engineering measure demarcation in air shaft was solved,and the application of the straight line equation to belt drift of.
根据平面坐标系统中的直线方程式在高斯平面坐标系统中同样适用的原理,将空间中的两条巷道转化为高斯平面坐标系统中的直线,利用平行线和直线方程的性质推导出解算风井中心坐标的一般公式,解决了风井有关工程测量标定的关键问题,介绍了直线方程在常村煤矿2000工作面皮带集中巷风井测量标定中的应用。
This article introduced the blinding and circulating wind vertical shaft, which has been completed,and before penetrating of the big circulating wind tunnel,the construction means and craftwork of draining water,storing water draining alone,in the air shaft,and explained attentive question in the project construction and data computation,of partial engineerin
本文介绍了已建成的盲回风立井在与井下回风大巷贯通前,将风井内存水单独排出的施工方法与工艺,并说明了工程施工中应注意的问题和部分工程数据的计算。
Grouting reinforcement and excavation construction technology for divulged yellow clay of ventilation shaft;
风井透溃黄泥注浆加固掘进施工技术
The article gives a detailed introduction to the concept of the natural ventilation mode, the types of the ventilation shafts, the dimensions and spacing of the surface ope.
本文对该区间自然通风的方案构思,通风井的设置形式,地面开口的大小、间距以及区间结构型式的选择等作了详细介绍。
Application of the injecting to sidewalls at the west airshaft in No.13 Coal Mine of Pingdingshan Coal Industrial Group;
壁间注浆在平顶山煤业集团十三矿西回风井的应用
Combined with the mine production planning in 2009～2020,we proposed the reformation schemes of ventilation system in multi-shaft mine and calculated the complex ventilation system network by computer simulation.
针对淮南新庄孜煤矿多风井矿井通风系统现状及存在问题,通过矿井通风系统阻力分布和风量分配的研究,结合矿井主通风机性能曲线,编制了矿井通风基础网络图,分析了影响大二号风井系统主通风机不稳定运行的原因,结合新庄孜煤矿2009~2020年的生产规划,提出了多风井通风系统改造调整方案,并进行了复杂矿井通风网络计算机模拟解算,在满足矿井安全生产要求的基础上,进行优化改造方案的分析比较,确定了关闭大二号风井风机、原大二号系统回风并入新淮工广系统的通风系统优化改造方案。
A ventilating shaft, as in a mine.
（比如矿井中的）上风井
Rapid Construction Technology of Freezing Well-wide Shaft of New Shanghai No.1 Ventilation Shaft Mine
新上海一号矿风井全井冻结井筒快速施工技术
Research on the optimizing technology of ventilation system renovation for multi-airshaft mine
多风井矿井通风系统优化改造技术研究
A passage for drawing up smoke or air.
上风井，上风烟道发散烟或空气的通道
East Air Shaft Main Ventilator Online Monitoring Research and Application
东风井主通风机在线监控研究与应用
Technology of Father Airshaft Water Burst Flooded Well of Baixiangshan Iron Mine
白象山铁矿风井突水淹井治理技术研究
Analysis of Roadway Supporting Technology Used in Wind Shaft Station of ZhuJi Thousand Meters Mine
朱集矿千米深井风井车场巷道支护技术及分析
Construction technique of central ventilating shaft and second auxilary shaft freezing engineering in Xieqiao mine
谢桥矿中央风井及二副井冻结工程施工技术
supply with a brattice, to ventilate mines.
装上矿井通风用的风幛。
Lining Slipform Construction Technology of Sending and Exhausting Single-shaft
单井送排风式竖井衬砌滑模施工技术
Calculation on Effective Air Quantity of Mixing New Mind in Mine Series Ventilation New Wind-doped
矿井串联通风掺新风的有效风量计算
mine static head
矿井通风系统静压头
Standard for the equipment of ventilative safety of colliery
矿井通风安全装备标准
Perhaps that's his style,cautious,sedate and methodical.
也许，这就是基辛格的风格，严谨、庄重、井井有条。
The risks are great because no one can guarantee he can find oil every time he sinks a well.
风险大是因为没人能保证在勘探时能井井见油。
Quick Roadway Excavation with Hoisting by Air-return Shaft
利用进回风立井改绞实现矿井快速掘进
Affecting factors research on the risks of deep water drilling operation in West Africa
西非深水JDZ-2-1井钻井工程整体风险分析
By determining the ventilation resistance of the mine shaft ventilation system, it is found that the ventilation resistance in return airways is particularly large and the ventilation degree is middle.
通过对矿井通风系统进行通风阻力测定,发现矿井回风段通风阻力过大且通风难易程度为中等。
