摘要
在已有铁路线附近施工,对桥梁和隧道等铁路构造物造成一定的影响,对既有铁路的运营形成一定的安全隐患。结合某铁路隧道附近的边坡开挖,通过有限元模拟计算,详细分析了边坡开挖对铁路隧道结构的影响。研究表明边坡开挖引起隧道的应力和变形较小,但爆破作业引起的振动对列车的运营存在安全隐患。
In the construction next to existing railways,there would have a certain impact on the railway tunnel or bridge,the blasting excavation would have a certain security risk to the operation of the railway.Here,combined with the slope excavation next to a railway tunnel,a detailed analysis of the impact of slope excavation on the existing railway tunnel is made by the finite element method.The results show that the stress and strain induced by slope excavation are small,but blasting vibration would have danger to train running.
出处
《水利与建筑工程学报》
2011年第2期73-76,84,共5页
Journal of Water Resources and Architectural Engineering
关键词
铁路隧道
边坡开挖
应力和变形
爆破振动
影响分析
railway tunnel
slope excavation
stress and deformation
blasting vibration
impact analysis
