公路隧道衬砌断面型式模型试验研究

公路隧道衬砌断面型式模型试验研究 English Version

基金项目: 交通部西部交通建设科技项目(200131800021)

Key Laboratory for Special Area Highway Engineering of Ministry of Education Chang’an University Xi’an 710064 China

摘要: 通过室内模型试验,研究了在满足建筑限界、通风等约束条件下3种公路隧道衬砌断面型式(单心圆、尖三心圆、坦三心圆)在不同初始应力场作用下的受力性状。分析了初始应力场及断面型式对衬砌结构受力的影响。经综合比较,给出了较为合理的公路隧道衬砌断面型式。研究结论为今后合理地设计隧道衬砌结构提供了可靠的试验依据。
- 公路隧道衬砌 /
- 断面型式 /
- 模型试验 /
- 侧压力系数
Abstract: The behaviours of three different forms of lining section in highway tunnels were studied under different initial stresses(i.e.,single-center circle,three-center sharp circle,three-center tabular circle).Through the model tests the influences of the initial stresses and forms of lining section on performances of lining were analyzed,and a rational form of lining sectional for highway tunnels was presented.
- highway tunnel lining /
- sectional form /
- model test /
- lateral pressure coefficient