隧道衬砌计算必定建立在周围地层基床系数的基础之上。基床系数不是一个物理常数,因此当确定其值时,除考虑地层的物理性质外,还要考虑结构的几何形状及承载情况。由于在不同程度上正确考虑了这些模型规律,通常用以确定基床系数的各种方法(太沙基、加列尔金、巴斯杰尔纳克以及一些标准的方法)所得的结果都很不一致,而且比现场实测的要小很多。作者在本文中估算了衬砌环变形,亦 Tunnel lining calculations must be based on the surrounding bedrock coefficient. The bed coefficient is not a physical constant, so when determining its value, the geometry and loading of the structure should be taken into account, in addition to considering the physical properties of the formation. Due to the fact that these models are properly accounted for to varying degrees, the various methods commonly used to determine the bed coefficient (terzaghi, kaljelin, basijernak and some standard methods) yield very good results Inconsistent, and much smaller than measured in the field. The author estimates the lining ring deformation in this paper, too