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| 半刚性材料作为长寿命沥青路面基层的适应性研究 | |
| 引用本文： | 平树江,蒋亮,申爱琴,刘晓光.半刚性材料作为长寿命沥青路面基层的适应性研究[J].公路交通科技,2009,26(4). |
| 作者姓名： | 平树江 蒋亮 申爱琴 刘晓光 |
| 作者单位： | 1. 长安大学,特殊地区公路工程教育部重点实验室,陕西,西安,710064;滨州市公路管理局,山东,滨州,256614 2. 唐山市交通局,河北,唐山,063000 3. 长安大学,特殊地区公路工程教育部重点实验室,陕西,西安,710064 4. 邹平县城市建设综合开发公司,山东,邹平,256200 |
| 摘 要： | 针对半刚性材料作为长寿命沥青路面基层使用问题,通过拟定典型路面,采用BISAB3.0计算了不同沥青层厚度下半刚性基层沥青路面的承载能力和疲劳寿命,分析了沥青层加厚对半刚性基层的基层应力和半刚性材料干缩、温缩的影响,研究了半刚性材料作为长寿命沥青路面基层的适应性.结果表明:相同荷载作用下,沥青层厚度增加,半刚性基层层顶压应力和层底拉应力明显减小,基层疲劳寿命大幅提高;半刚性基层受温度、水等外界因素影响明显减弱,半刚性基层的开裂、冲刷和路面反射裂缝等问题得以有效控制. |
| 关 键 词： | 道路工程 半刚性基层 开裂 疲劳破坏 长寿命 适应性 |
Research on Adaptability of Semi-rigid Material as Long Life Asphalt Pavement |
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| PING Shujiang,JINAG Liang,SHEN Aiqin,LIU Xiaoguang.Research on Adaptability of Semi-rigid Material as Long Life Asphalt Pavement[J].Journal of Highway and Transportation Research and Development,2009,26(4). | |
| Authors: | PING Shujiang JINAG Liang SHEN Aiqin LIU Xiaoguang |
| Institution: | 1.Key Laboratory for Special Area Highway Engineering of Ministry of Education;Chang'an University;Xi'an Shaanxi 710064;China;2.Binzhou Highway Administration Bureau;Binzhou Shandong 256614;3.Tangshan Municipal Communications Bureau;Tangshan Hebei 063000;4.Zouping City Constructing Synthetic Development Co.;Ltd.;Zouping Shandong 256200;China |
| Abstract: | In the light of semi-rigid material as base course for perpectual pavement,the bearing capacity and fatigue life of semi-rigid base pavement of different depth were computed with BISAR3.0 for the chosen typical pavement,the impact of thickened layer on the stress of the semi-rigid base and the dry and temperature shrinkages of the material was analyzed,and its adaptability as base for perpetual pavement was studied.The result shows that(1) with the same load and thickening of the asphalt layer,the compressi... |
| Keywords: | road engineering semi-rigid base crack fatigue damage long life adaptability |
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