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按照矿山建井施工的惯例,明竖井施工均采用常规的有井架施工法。我们在桐柏银矿主井的施工中,利用现场的施工条件,针对主井系统及其地面配套工程部分等联锁工程在时间上的控制要求,采用了明竖井无井架的施工方法,在建井施工中进行了一次新时探索和尝试,收到了预期的效果。 一、方案选择 1.工程技术特征 依据施工图设计,主井为箕斗提升井,净径3.5米,荒径4.0米,井深210米,井口标高+245.20米,上部设计有一42米高的钢筋混凝土永久井架,并集中原矿仓、信号房等于一体。井筒在+210米处有一措施单巷已与井筒联通,并在+81.7米标高处设计有
According to the mine construction practice, the vertical shaft construction are used conventional derrick construction method. In the construction of the main shaft of Tongbaiyin Mine, we used the construction conditions of the site and aimed at the time control requirements of the interlocking works such as the main shaft system and its ground supporting works. We adopted the construction method without shaft derricks in the shaft Construction of wells during a new exploration and attempt to receive the expected results. First, the program options 1. Engineering Features According to the design of construction drawings, the main shaft for the skip lifting wells, a net diameter of 3.5 meters, 4.0 meters waste diameter, 210 meters deep, wellhead elevation of +245.20 meters, the upper design has a 42-meter-high steel Concrete permanent derrick, and concentrate ore warehouse, signal room is equal to one. The wellbore has a measure at +210 meters Single lane has been connected with wellbore and designed at +81.7 meters elevation