摘要
通过对格栅的支护机理的理论分析,工程试验的对比分析,取得如下结论:(1)利用材料力学知识,从理论上计算了在抗压性能、抗弯性能上,格栅拱架和传统工字钢拱架具有的不同受力特点。(2)通过工程试验对比,在岩溶隧道中相同的地质条件下,对拱架整体受力,变形特征,和混凝土的共同作用进行试验,并结合实际工程中的监测数据对应力和变形对比分析,准确地了解、评价格栅拱架的受力特点和变形特点,指导实际工程中的设计和施工,保证工程建设的安全性。
Based on the theoretical analysis of grid supporting mechanism and the comparative analysis of engineering test, we have obtained the following conclusions： （1） we calculate the bending properties and compressive properties theoretically, knowing that grid and traditional steel arch have different stress characteristics. （2） under the same geologic conditions in Karst Tunnel, we test the combined action of the overall stress, deformation, and concrete, and have analysis combined with the stress and deformation of monitoring data in the practical project, which can accurately understand and evaluate grid arch＇s force characteristics and deformation. It can guide the design and construction in practical projects and ensure constructional safety.
出处
《建筑技术开发》
2015年第12期73-76,共4页
Building Technology Development
关键词
岩溶
隧道工程
格栅拱架
支撑
karst
tunnel engineering
grid arch
support
