摘要
归纳现有道路挖掘修复后的路面病害,并分析路面病害的成因机理。指出道路挖掘前后受力模式的变化,建立起新受力模式下满足掘路修复边界条件的有限元计算模型,通过实例分析揭示沟槽原结构修复后路表变形和结构内力成倍增大是造成道路挖掘路面病害的根本原因。
On the basis of the investigation of engineering characteristics to excavation road, engineering diseases and theirs reason are summarized. The force pattern of road changes after excavating, and the calculation model of deformation and structure stress isn＇t suitable for. With considering contacting interface, the 3 - D FEA calculation model is established. Through a series of calculation analysis, the deformation of repaired region and the stress of base course bottom will be obviously increased if rehabilitate groove is used original structure.
出处
《福建建筑》
2008年第7期110-112,共3页
Fujian Architecture & Construction
关键词
道路挖掘
沟槽修复
病害机理
有限元模型
excavation road road -excavating rehabilitation diseases and mechanism FEA model
