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近年来,国外大大加强了高效能巷道掘进机(特别是用于挖掘坚硬岩石)的研究和结构设计工作,并且目前已积累了使用各种高效率掘进巷道(包括在复杂的矿山地质条件下)的技术装备的重要经验。巷道掘进机的设计方案是沿两个方向发展的。制造了适合于在一定(狭窄)的矿山地质条件范围内工作的专门机械,例如“RobbinS”公司(美国)的护盾直径为10.4米的371—110型掘进机和该公司的应用很广泛的202—201型掘进
In recent years, the research and structural design work of high performance roadheaders (especially for hard rock excavation) has been greatly strengthened in foreign countries. At present, various tunnels with high efficiency are used (including under complicated mine geological conditions) The technical equipment of the important experience. Roadway boring machine design is developed in two directions. Special machines have been made suitable for working within a certain (narrow) mine geological conditions, such as the 371-110 boring machine with a shield diameter of 10.4 meters at “RobbinS” (United States) and the company’s wide range of applications 202-201 type of driving