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采用了有限单元法对岔洞进行结构分析。为了节省上机前的准备时间,用计算机直接形成数据资料,而不需人工准备数据再输入计算机。运算时采用了直接解法。在地下铁道、供水网和水力系统中常会遇到分岔隧洞。在水力系统中,当一条平洞或竖井与主洞相交或者利用一条引水洞向几台机组供水时都形成岔洞。典型例子如图1所示。为了检验在内,外压力作用下隧洞的稳定性,首先采用了弹性应力的分析方法。对一条
The finite element method is used to analyze the structure of the turnout. In order to save the preparation time on the machine, use the computer to form the data directly, without having to manually prepare the data and then enter the computer. The solution used a direct solution. Bifurcation tunnels are often encountered in subways, water networks and hydraulic systems. In a hydraulic system, a hole is formed when a flat hole or shaft intersects the main tunnel or a water diversion tunnel is used to supply water to several units. A typical example is shown in Figure 1. In order to test the stability of the tunnel under internal and external pressures, an analytical method of elastic stress was first used. Right one