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基于FWD的路基材料反算模量修正系数研究 被引量:3

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摘要 在对旧路进行加铺设计之前,需确定路基的承载能力,为此确定路基材料的回弹模量是必要的。该文通过铺筑两种不同结构的试验路段并对两种不同路基材料的物性参数进行测试,经三参数复合模型与ABAQUS本构模型对路基材料的回弹模量进行预估,得到路基材料的实测回弹模量;在试验路段铺筑过程中进行定点FWD弯沉测试,并对每次测试所得结果进行路基材料模量反算分析,得出不同测试条件下路基材料的反算模量。将路基材料的预估回弹模量与反算模量进行对比,得出对应测试条件下的路基材料模量修正系数K。通过FWD弯沉测试与模量修正系数K可以快捷准确地确定路基材料的实际回弹模量。
出处 《中外公路》 北大核心 2013年第2期232-236,共5页 Journal of China & Foreign Highway
基金 交通运输部西部交通建设科技项目(编号:200831800099)
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