隧道仰拱的力学行为研究

隧道仰拱的力学行为研究 English Version

摘要: 本文通过大比例尺模型试验与有限元分析相结合的方法研究了隧道仰拱的力学行为。结果表明，隧道仰拱对提高隧道结构的承载力，抑制围岩内塑性区的扩展，约束隧道洞周位移的发展，提高衬砌结构的安全度等方面都有非常重要的作用。
- 仰拱 /
- 隧道力学 /
- 支护与围岩交互作用
Abstract: With the large scale model tests and the method of finite elements,this paper studies the mechanical behaviour of tunnel invert.The results shaw that the tunnel invert is very important in increasing the bearing capacity of the tunnel structure, restraining the extension of the plastic zones in the surrounding rocks,restricting the development of the surrounding rock displacement and increasing the safety factor of the tunnel lining.
- invert /
- tunnel mechanics /
- interaction between support and surrounding rock.