一、问题的提出早期,矿工把钎子打入岩石开出一放炸药的孔,引爆炸药把岩石炸成碎块以便移动之。从那时起,这个原理就成为许多采矿作业的理论基础。而发生变化的仅在于驱动钻机的动力。起先,空气动力代替人力,设备的动力和大小都加大了。后来,由于人力控制工作着的钻机变得日益困难,钻车诞生了。这种移动式钻车可装上一台或更多的凿岩机,一个钻臂一台,都是靠气缸移动和驱动的。因此,一位矿工可同时操纵一台以上的凿岩机,而且,由于矿工不必手持凿岩机而可用较大的动力。但是,较大的动力意味着 First, the problem raised Early, the miners into the rock into the miners put a hole in the explosives, detonated explosives rock fragments into pieces in order to move. Since then, this principle has become the theoretical basis for many mining operations. The only change is the power to drive the rig. At first, the aerodynamic force instead of manpower, equipment, power and size have increased. Later, the rig was born as a result of manual control of the working rigs becoming increasingly difficult. This mobile drilling rig can be fitted with one or more rock drills, one with a boom and one driven by a cylinder. Therefore, one miner can operate more than one rock drill at the same time, and more power is available because the miner does not have to hold the rock drill. However, greater motivation means