双拱引水隧道受力和位移的数值模拟研究

Numerical Simulation Research on Force and Displacement of Double Arch Water Diversion Tunnel

双拱引水隧道在城市现代化进程中起到重要的作用,但双拱隧道在施工过程中的受力和位移如何,受力和位移是否会对隧道工程造成安全隐患。针对此问题,通过数值模拟软件,对某双拱隧道工程的受力和位移进行分析研究,结果表明:严格按照设计方案进行施工,能够保证隧道的竖向位移满足工程要求.由隧道的第一主应力和第三主应力可知,施工中应当注意隧道拱底处和隧道右洞区域的应力,防止此区域出现应力集中现象,以此提高隧道工程的安全性。

The double-arch diversion tunnel plays an important role in the process of urban modernization.However,how about the stress and displacement of the double arch tunnel in the construction process,and whether the stress and displacement will cause potential safety hazards to the tunnel engineering.Aiming at this problem,the force and displacement of a double-arch tunnel project are analyzed and researched by numerical simulation software.The results show that the construction in strict accordance with the design scheme can ensure that the vertical displacement of the tunnel meets the engineering requirements.According to the first principal stress and the third principal stress of the tunnel,attention should be paid to the stress at the bottom of the tunnel arch and the area of the right hole of the tunnel during construction to prevent stress concentration in this area,thereby improving the safety of the tunnel project.