论文部分内容阅读
当前,国内外对于隧道下穿邻近建筑物的安全性影响分析及评估方法尚未建立,而作为异型结构的连拱隧道对邻近建筑物的影响研究更为缺乏。结合重庆市渝中区两江大桥渝中连接隧道的设计案例,采用地层-结构法对隧道下穿14层高层建筑进行力学分析。通过上部结构荷载估算、隧道建模等方法,建立连拱隧道下穿高层建筑安全性影响分析方法,并对隧道开挖后地基的变形与隧道支护的受力特性作出安全性评价,研究成果对类似工程具有参考与指导意义。
At present, the methods of analyzing and assessing the safety of under-penetrating tunnels at home and abroad have not yet been established, and the research on the influence of arch tunnels with different-shaped structures on the adjacent buildings is still lacking. Combined with the design case of Yuzhong connecting tunnel of Yuzhong District Liangzhong Bridge, a stratum-structure method was used to analyze the mechanics of the tunnel under 14 stories. Through the method of superstructure load estimation and tunnel modeling, this paper establishes a method to analyze the influence of safety of multi-arch tunnel under high-rise building, and makes a safety evaluation on the deformation of tunnel foundation and the stress characteristics of tunnel support. For similar projects with reference and guiding significance.