论文部分内容阅读
运用数值计算方法对单洞2车道、3车道、4车道隧道进行计算分析,通过对衬砌结构受力特征的比较研究,表明单洞四车道隧道结构受力比两车道隧道增加了40%以上、部分位移增加60%以上,表明新建大断面隧道与传统的两车道隧道相比,隧道衬砌结构受力状态、隧道围岩压力分布状况变得十分复杂;通过对工程实例衬砌结构参数分析表明,现行隧道松散荷载计算方法难以反映隧道结构的实际荷载隧道,其计算方法的适宜性受到了质疑。
Numerical calculation method is used to calculate and analyze the single lane 2 lanes, 3 lanes and 4 lanes tunnels. Comparing the stress characteristics of the lining structure shows that the stress of one-lane four lanes tunnel structure is more than 40% Partial displacement increased by more than 60%, indicating that the new large section tunnel compared with the traditional two-lane tunnel, the tunnel lining structure stress state, the tunnel surrounding rock pressure distribution becomes very complicated; through the engineering example lining structure parameter analysis shows that the current Tunnel loose load calculation method is difficult to reflect the tunnel structure of the actual load tunnel, the suitability of the calculation method has been questioned.