园形压力隧洞的计算

本文在考虑围岩和衬砌变形协调的基础上,同时考虑到围岩内结构力对衬砌应力的影响,衬砌裂缝的扩展(向围岩内),以及衬砌裂缝部分和未裂缝部分的工作特点等因素,分别探讨了园形无衬砌隧洞,有混凝土衬砌的隧洞和有钢筋混凝衬砌的隧洞的计算方法,对目前设计中所沿用的园形压力隧洞的计算方法作了改进。

The Calculation of Circular Pressure Tunnels

After taking into consideration of the deformation of rocks in confor- mity with tunnel lining,the effect of the structural forces within the ro- cks actlng on the tunnel linlng,the extension of lining cracks against the rocks around and the construction peculiarities botween the tunnel lining and its cracks,the author dealt with the calculation of the circular non- lining tunnels,the concrete lined tunnels,and the reinforced concree li- ned tunnels as welt as the improvement in the calculation of the circular pressure tunnels used at prosent。