Shield tunneling method has become a primary method in underground excavation with its predominance, earth pressure balanced shield tunneling (EPBS) is the most universal type in our country.
盾构隧道法开挖凭借自身的优势成为城市地下施工的主要手段，其中土压平衡式盾构目前在国内使用较为普遍。
A hydraulic drive system of cutter head in shield tunneling machine was designed, which is open type hydraulic system and controlled in open-ring.
设计了一个盾构掘进机的刀盘驱动液压系统，该系统是开式液压系统，应用电液比例控制技术实现了泵排量实时调节。
After introducing its technical features, application advantages and perfect performances, the author illustrates the availability of type ZCY-45 side dumping rock loader in coal road tunneling.
将ZCY - 45型全液压侧卸式装岩机应用到煤巷掘进中，通过对其技术特征、使用优点、性能完善的介绍，阐述了ZCY - 45型侧卸式装岩机在煤巷掘进中的可行性。
After introducing its technical features, application advantages and perfect performances, the author illustrates the availability of type ZCY-45 side dumping rock loader in coal road tunneling.
将ZCY - 45型全液压侧卸式装岩机应用到煤巷掘进中，通过对其技术特征、使用优点、性能完善的介绍，阐述了ZCY - 45型侧卸式装岩机在煤巷掘进中的可行性。
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