改性沥青垫层材料蠕变试验及数值模拟分析  

Test and numerical simulation analysis for the creep property of modified asphalt isolation layer

作　　者：王武[1] 何翔[1] 张春晓[1] 

机构地区：[1]总参工程兵科研三所,河南洛阳471023

出　　处：《新型建筑材料》2013年第5期4-6,10,共4页New Building Materials

摘　　要：进行了18℃时不同加载应力下SBS改性沥青垫层材料的单轴蠕变试验,利用Origin8.0软件对试验数据进行回归分析,得到了Burgers模型的蠕变柔量表达式。将提取的模型参数代入FLAC3D的蠕变模型中,模拟蠕变试验进程,结果显示,FLAC3D软件能够较好地模拟改性沥青垫层材料的长期蠕变试验,计算结果与试验结果符合较好。In this paper, single-axial creep tests of SBS modified asphalt isolation layer are conducted under different loading stress at 18 degrees centigrade. Through regression analysis on the test data by OriginS.O software,the creep compliance expression of Burgers creep model can be obtained. Based on the parameters extracted from the test data, the FLAC3D software simulates the creep test. The result shows that FLAC3D can simulate long-term creep tests of the modified asphalt mixture and the numerical simulation results match the creep test results well.

关 键 词：改性沥青 蠕变试验 Burgers蠕变模型 数值模拟 

分 类 号：TU535[建筑科学—建筑技术科学]