铁道标准设计2017，Vol.61Issue(6)：105-110,6.DOI:10.13238/j.issn.1004-2954.2017.06.022
地层变位分配控制原理在小间距偏压突变大断面隧道中的应用研究
Application and Research of Ground Deflection Distribution Control Theory in Tunnels with Small Spacing, Unsymmetrical Load and Mutant Large-section
摘要
Abstract
Studying the mechanism of surface deformation by ground deflection distribution control theory in tunnels with shallow death, small spacing, unsymmetrical load and mutant large-section under complicated geological conditions is very important to control surface deformation. With reference to Shenzhen Metro Line. 7, this paper analyzes the deformation laws of surface under complicated geological conditions. The simulation results reveal that grouting plays an important role and the ground settlement (the maximum is 14. 82 mm) meets the standard. The monitored surface deformation is well over the standard value, because the surface deformation is not only controlled by grouting, but also by many uncertain factors. The field observation indicates and the relevant authority proves that tunneling doesn't affect normal conditions of adjacent buildings. Thus, the primary goal is to ensure the safety of tunnel structures and surrounding environment, and controlling the surface settlement by only a single standard is not fully acceptable. Routine standards are almost inapplicable in tunneling project with complicated structure and in complex geological environment.关键词
地层变位分配控制原理/浅埋暗挖法/偏压隧道/小间距/突变大断面Key words
Ground deflection distribution control mechanism/Shallow tunneling method/Unsymmetrical loading tunnel/Small spacing/Mutant large-section分类
交通工程引用本文复制引用
张社荣,杜晓喻,陈愿,陈克强,彭振辉..地层变位分配控制原理在小间距偏压突变大断面隧道中的应用研究[J].铁道标准设计,2017,61(6):105-110,6.基金项目
国家自然科学基金创新研究群体科学基金(51321065) （51321065）
