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1 前言盾构掘进机是用于软土地层中建造隧道的一种专用机械。我院从1960年至今,已研制出直径从φ3.5~φ11.3m的各种盾构20余台,建造了20多公里的各种隧道,积累了一定的设计和施工经验。随着我国国民经济的发展,地下工程建设日益增多,在城市中,因地面空间已日趋饱和,向地下空间发展,建设地铁等各种隧道已势在必行,而市区人
1 Foreword Shield boring machine is a kind of special machinery used for tunnel construction in soft ground. Our hospital from 1960 to now, has developed a diameter of φ3.5 ~ φ11.3m various shield more than 20 units, built more than 20 km of various tunnels, has accumulated some experience in the design and construction. With the development of national economy in our country, the construction of underground engineering is increasing day by day. In the cities, it is imperative to construct various tunnels such as subways due to the increasingly saturated ground space and the development to underground space.