摘要
以京化高速公路二期工程为研究对象,采用现场测试、室内试验等方法对路基填料的工程特性进行分析,并借助非线性有限元分析软件ANSYS进行仿真模拟,研究动荷载作用下路基沉降规律。结果表明,路基沉降受速度效应与加载循环效应双重因素的影响;沿深度方向路基的沉降呈减小的趋势;路基沉降量极值点位于循环荷载加载点正下方,最大沉降量约为9.624 cm。
Taking the second -term engineering of Jing -Hua freeway as research object, laws of sub- grade settlement under dynamic loading through analyzing the engineering properties of subgrade - fill- ing was studied by taking tests on the spot and laboratory experiments and simulating with the finite el- ement software ANSYS. The test results show that the subgrade settlement is affected by both the speed and load cycles; the subgrade extremal point of subgrade settlement 9. 624 cm. settlement decrease with the depth of subgrade increasing; the is below the cyclic loading and the maximum settlement is about
出处
《河北工程大学学报（自然科学版）》
CAS
2012年第2期7-10,共4页
Journal of Hebei University of Engineering:Natural Science Edition
基金
河北省交通运输厅科技计划项目(Y-070229)
关键词
动荷载
路基
沉降规律
有限元分析
dynamic loading
subgrade
settlement law
finite elements method
