基于数值模拟的复合式衬砌隧道研究

Research on Composite Lining Tunnel Based on Numerical Simulation

为对复合式衬砌隧道进行研究,通过数值模拟的方法,对复合式衬砌体系理论、围岩压力计算及支护刚度计算进行分析,对复合式隧道工程的开挖进行模拟。研究结果表明:二次衬砌结构承担了大部分的围岩压力,双隧道中左右两个隧道的相互作用,有利于控制围岩的位移。

In order to study the composite lining tunnel,the theory of composite lining system,the calculation of surrounding rock pressure and the calculation of support stiffness are analyzed through the numerical simulation method,and the excavation of composite tunnel engineering is simulated;the research results show that:the secondary lining structure bears most of the surrounding rock pressure,and the interaction between the left and right tunnels in the twin tunnel is beneficial to control the displacement of the surrounding rock.