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水电系统自制ST—58A型岩石掘进机,1982年在引滦工程南线王庄隧洞工程掘进中进行试用,效果良好,特予介绍。新王庄隧洞长约1500米,洞径5.8米;矿质石灰岩,倾角为15°～20°,单向抗压强度为800公斤/平方厘米,属中硬岩石。隧洞施工时采用ST—58A型岩石掘进机一台(直径5.8米);三台14吨架线电机车,每台电机车牵引二辆14立米梭式出碴矿车。工作时一列装车,一列待装,一列运行。所现
Hydropower system homemade ST-58A rock roadheader, in 1982 on the south side of the Luanhe to Wangzhuang tunnel excavation trial, the effect is good, especially for the introduction. The new Wangzhuang tunnel is about 1,500 meters long and has a hole diameter of 5.8 meters. The mineral limestone has a dip angle of 15 ° -20 ° and a unidirectional compressive strength of 800 kg / cm 2. It is a medium-hard rock. The tunnel was constructed with one ST-58A rock boring machine (5.8 m in diameter); three 14-ton overhead electric locomotives, each towing two 14-mil shuttle unshakable tubs. Work load a column, to be installed, a run. Now