摘要
为确保隧道结构安全,在施工和运营期间均需进行收敛测量,以监测隧道或地下洞室向内侧的相对位移。双层隧道具有特殊工程特点,常规收敛测量方法受到一定局限。结合工程实际,探索并采用了横竖径观测的收敛测量方法,通过对隧道断面最大变形位置的测量达到对整个断面结构变形监控目的。工程实例测量分析结果表明,该技术方法具针对性和可行性,可在类似工程测量中推广应用。
To ensure the structural integrity of tunnels and their safety,it is important to conduct convergence surveys to monitor the relative inward displacement throughout construction and operation.Because of their unique characteristics,the conventional measurement of tunnel convergence is unfit for double deck tunnel designs.The measurement of transverse and vertical diameter is used and investigated as a method of convergence surveying in a double deck tunnel construction project.The method measures the maximum deformation of the tunnel cross-section to illustrate the deformation of the tunnel as a whole.The results of this example show that the method is both useful and feasible,and can be applied to similar engineering surveys.
出处
《上海国土资源》
2012年第1期87-90,共4页
Shanghai Land & Resources
关键词
双层隧道
结构变形
收敛测量
double deck tunnel
structure deformation
convergence measurement
