应力吸收层的力学行为与设计参数研究  

Analysis of Mechanical Behavior and Design Parameters of Stress Absorbing Layer

作　　者：齐秀廷[1] 

机构地区：[1]山西交通职业技术学院,山西太原030031

出　　处：《公路工程》2014年第4期161-164,181,共5页Highway Engineering

摘　　要：采用数值模拟手段研究应力吸收层在其模量和厚度等因素影响下的力学行为,建议其模量的取值范围为400~600 MPa,厚度的取值范围为1~2.5 cm,混合料设计空隙率的合理范围为1.0%~2.5%,研究成果对应力吸收层的材料组成设计及施工有重要的指导意义。Based on the numerical simulation method the paper analyzed the influence law of the material parameters such as the modulus, the thickness of the stress-absorbing layer on the mechanical response of the stress-absorbing layer. The results show that the reasonable the stress-absorbing layer modulus range is 400 - 600 MPa; the reasonable thickness ranges from 1 - 2.5 cm ; the reasonable design porosity range is 1.0% - 2.5% , which have important guiding significance on the material design and construction of the stress-absorbing layer.

关 键 词：反射裂缝 应力吸收层 模量 空隙率 

分 类 号：U416.217[交通运输工程—道路与铁道工程]