不同结构层间接触状态下路面的应力响应分析  

Stress Response Analysis of Pavement under Different Interlayer Contact Conditions

作　　者：陶国星 TAO Guo-xing(Zhongjiao Second Highway Survey and Design Institute Co.,Ltd.,WuHan,Hubei 430000,China)

机构地区：[1]中交第二公路勘察设计研究院有限公司,湖北武汉430000

出　　处：《黑龙江交通科技》2022年第3期16-19,共4页Communications Science and Technology Heilongjiang

摘　　要：为了研究不同结构层间结合状态对沥青路面内部结构应力响应,依据弹性层状连续体系理论,运用弹性层状连续体系的理论分析软件——BISAR3.0,输入路面结构参数并计算,得到沥青路面内部应力。沥青混凝土下面层和水稳上基层之间由连续状态变为滑动状态,沥青混凝土下面层底面所受的正应力由受压状态变成受拉状态。沥青混凝土下面层和水稳上基层之间由连续状态变为滑动状态,导致沥青混凝土下面层竖向剪应力增加幅度是最大的。水平纵向剪应力在沥青混凝土面层衰减是最快的,在水稳上基层、下基层和底基层衰减速度比较缓慢。使沥青混凝土面层始终处于受压状态,应确保透层油的施工质量。In order to study the stress response of the internal structure of asphalt pavement under the combined state of different structural layers,based on the theory of elastic layered continuous system,the theoretical analysis software of elastic layered continuous system-BISAR3.0 was used to input the pavement structural parameters and calculate to obtain the internal stress of asphalt pavement.The continuous state between the lower layer of asphalt concrete and the upper base of water stability changes into sliding state,and the positive stress on the bottom of the lower layer of asphalt concrete changes from compression state to tension state.From continuous state to sliding state between asphalt concrete lower layer and water stable upper base,the increase of vertical shear stress of asphalt concrete lower layer is the largest.Horizontal longitudinal shear stress in asphalt concrete surface layer attenuation is the fastest,in the water stability of upper base,lower base and bottom base attenuation rate is slow.The construction quality of permeable oil should be ensured so that the asphalt concrete surface is always under pressure.

关 键 词：沥青面层 层间结合状态 剪应力 荷载 

分 类 号：U446.1[建筑科学—桥梁与隧道工程]