类矩形盾构隧道衬砌结构极限承载力足尺试验研究

Full-Scale Experimental Study on the Ultimate Bearing Capacity of Quasi-Rectangular Shield Tunnel Lining

文章针对轨道交通类矩形盾构隧道结构的承载性能,结合足尺结构的静载试验,对试验过程中的结构变形、管片裂缝、接缝变形和连接螺栓受力的发展情况以及破坏过程等进行了描述,对结构的承载性能和破坏机理进行了分析研究。

For studying of the bearing capacity of quasi-rectangular shield tunnels,this paper describes the development and failure process of structural deformation,segment crack,joint deformation and stress distribution of connecting bolt based on the full-scale structure static loading test.And the bearing capacity and failure mechanism of tunnel structure have been analyzed and studied,which provides a technical support and basis for the design and construction control of the new type of shield tunnel lining.