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应力吸收层贯入试验数值分析与试验方法评价
引用本文:周燕,李美东,苑瑞星,陈拴发. 应力吸收层贯入试验数值分析与试验方法评价[J]. 郑州大学学报(工学版), 2012, 33(1): 6-10
作者姓名:周燕  李美东  苑瑞星  陈拴发
作者单位:1. 天津城市建设学院土木工程系,天津,300384
2. 霍尼韦尔综合科技(中国)有限公司,上海,201203
3. 长安大学材料科学与工程学院,陕西西安,710061
基金项目:国家西部交通建设科技资助项目(200631800005)
摘    要:为了评价应力吸收层沥青混合料的抗剪性能,对应力吸收层沥青混合料进行了不同温度下抗压回弹模量试验和贯入试验的数值分析,分析了试件规格、压头大小、矿料级配等对试验结果的影响.根据数值分析和室内试验结果,验证了应力吸收层沥青混合料贯入试验的可行性,得到适宜的试验条件.分析表明:采用直径和高度均为100 mm的圆柱形静压试件和直径19 mm的压头进行贯入试验时,试验数据稳定,可有效区分应力吸收层矿料级配的优劣.研究成果为应力吸收层沥青混合料的质量评价提供了理论和试验依据.

关 键 词:应力吸收层  沥青混合料  贯入试验  数值分析  试验方法

Numerical Analysis and Test Method Evaluation of Penetration Test of Stress Absorbing Layer
ZHOU Yan , LI Mei-dong , YUAN Rui-xing , CHEN Shuan-fa. Numerical Analysis and Test Method Evaluation of Penetration Test of Stress Absorbing Layer[J]. Journal of Zhengzhou University: Eng Sci, 2012, 33(1): 6-10
Authors:ZHOU Yan    LI Mei-dong    YUAN Rui-xing    CHEN Shuan-fa
Affiliation:1.Department of Civil Engineering,Tianjin Institute of Urban Construction,Tianjin 300384,China;2.Honeywell Technology Solutions(China) Co.Ltd.,Shanghai 201203,China;3.School of Materials Science and Engineering,Chang’an University,Xi’an 710061,China)
Abstract:For evaluating the shear property of stress absorbing layer asphalt mixture,compression rebound modulus test under different temperatures and numerical analysis were conducted.The influence of test conditions such as specimen size and head size and mineral aggregate gradation were discussed.And then the feasibility and appropriate test conditions of penetration test were proposed based on the numerical analysis and test results.The results show that: with 100mm diameter and 100mm height static pressure cylindrical specimens and 19mm diameter pressure head,the test data is stable and can effectively distinguish mineral aggregate gradation of stress absorbing layer.Conclusion provides theoretical and test basis for quality control of stress absorbing layer asphalt mixture.
Keywords:stress absorbing layer  asphalt mixture  penetration test  numerical analysis  test method
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