地铁隧道结构变形分析与控制

Analysis and Control of Structure Deformation of Metro Tunnel

由于地质条件的差异性,地铁盾构法施工过程中对土体产生一定的扰动,特别是在软土地带,掘进及工后均变形较大,对于隧道结构变形造成一定的影响。为更好将此工法应用到软土地区隧道施工,结合国内外类似工程的实践经验,全面分析盾构法施工隧道结构变形原因,提出变形控制措施。

Due to the differences of geological conditions,soil mass is disturbed to some extent during metro shield tunnel construction,especially in soft soil area,resulting in severe deformation after excavation and construction,thus influencing the tunnel structure deformation.Combined with experiences of similar projects at home and abroad,this paper comprehensively analyzes the reasons for tunnel deformation by shield tunnel method and presents the control measures for structure deformation.