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| 沥青路面土基模量季节变化影响分析 | |
| 引用本文： | 颜利,李宇峙,邵腊庚,周晓青.沥青路面土基模量季节变化影响分析[J].公路交通科技,2007,24(2):44-47,51. |
| 作者姓名： | 颜利 李宇峙 邵腊庚 周晓青 |
| 作者单位： | 1. 上海市兰德公路工程咨询设计有限公司,上海,200070 2. 长沙理工大学,道路工程交通部重点实验室,湖南,长沙,410076 3. 上海市公路管理处,上海,200063 |
| 摘 要： | 通过铺筑室内土基足尺试验,模拟南方气候条件的变化控制地下水位,实测得到1年内各个月份的土基模量值,用弹性层状体系理论计算了典型路面结构各个时期内各计算点处的应力、应变、变形,进而对常用的路面设计指标弯沉、疲劳、车辙进行了损伤分析,将计算结果与考虑最不利季节模量的计算值进行了对比分析,得出对于我国半刚性路面,土基模量的季节性变化对弯沉和疲劳损伤影响较大,而对于车辙损伤的影响较小的结论。 |
| 关 键 词： | 沥青路面 设计方法 土基模量 季节 |
| 文章编号： | 1002-0268（2007）02-0044-04 |
| 修稿时间： | 2005-06-24 |
Analysis of Influence of Seasonal Variation of Subgrade Modulus of Asphalt Pavement |
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| YAN Li,LI Yu-zhi,SHAO La-geng,ZHOU Xiao-qing.Analysis of Influence of Seasonal Variation of Subgrade Modulus of Asphalt Pavement[J].Journal of Highway and Transportation Research and Development,2007,24(2):44-47,51. | |
| Authors: | YAN Li LI Yu-zhi SHAO La-geng ZHOU Xiao-qing |
| Institution: | 1.Shanghai Lander Consulting Engineers LTD, Shanghai 200070, China; 2. Key laboratory of Road and Traffic Engineering of the Ministry of Communications, Changsha University of Science and Technology, Hunan Changsha 410076, China; 3. Shanghai Municipal Highway Administration Bureau, Shanghai 200063, China |
| Abstract: | Through simulating the rainfall duration in southern China and controlling the groundwater lever,the subgrade modulus in each month of one year were tested in full scale indoor field.The stress,strain and deflection in calculation points of a typical pavement structure in each period were calculated through the theory of elastic layered system.Then damage analysis of deflection,fatigue and rutting in one year were conducted and the results were compared to that of using a constant subgrade modulus.Through analysis of these results,it is concluded that the variation of subgrade modulus will have greater influence on the deformation and fatigue with little impact on pavement rut. |
| Keywords: | asphalt pavement design method subgrade modulus season |
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