[1]汪敏,何兆益,张从友.排水沥青路面极限排水强度[J].东南大学学报(自然科学版),2020,50(6):1097-1101.[doi:10.3969/j.issn.1001-0505.2020.06.015]
　Wang Min,He Zhaoyi,Zhang Congyou.Ultimate drainage strength of porous asphalt pavement[J].Journal of Southeast University (Natural Science Edition),2020,50(6):1097-1101.[doi:10.3969/j.issn.1001-0505.2020.06.015]
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排水沥青路面极限排水强度()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
50
期数:
2020年第6期
页码:
1097-1101
栏目:
交通运输工程
出版日期:
2020-11-20

文章信息/Info

Title:
Ultimate drainage strength of porous asphalt pavement
作者:
汪敏1; 何兆益1; 张从友2
1重庆交通大学土木工程学院, 重庆 400074; 2重庆市市政设计研究院, 重庆 400020
Author(s):
Wang Min1;  He Zhaoyi1;  Zhang Congyou2
1College of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, China
2Chongqing Municipal Research Institute of Design, Chongqing 400020, China
关键词:
排水沥青路面;  极限排水强度;  空隙率;  渗透系数;  排水能力
Keywords:
porous asphalt pavement;  ultimate drainage strength;  void ratio;  permeability coefficient;  drainage capacity
分类号:
U416.217;TU997
DOI:
10.3969/j.issn.1001-0505.2020.06.015
摘要:
为提高排水沥青路面设计可靠性并弥补渗透系数表征排水能力存在的不足,提出一种表征排水沥青路面排水能力的新评价指标.通过利用均匀试验设计方法和数据分析软件,建立了极限排水强度的多因素回归模型,提出了用极限排水强度表征的渗透系数计算理论公式.研究结果表明,新评价指标极限排水强度与常用指标渗透系数呈对数相关关系,且渗透系数越大,极限排水强度也越大,提高排水沥青混合料空隙率是增大路面排水能力的最有效方法.利用极限排水强度3D模型可以预测路面所需空隙率大小,可对特定环境下的排水沥青路面进行设计优化.
Abstract:
To improve the reliability of drainage asphalt pavement design and make up for the deficiency of permeability coefficient characterizing the drainage capacity, a new evaluation index characterizing drainage capacity of the drainage asphalt pavement was proposed. By using the design method for a uniform test and the data analysis software, a multi-factor regression model for ultimate drainage strength was developed and a theoretical formula was proposed to calculate permeability coefficients represented by the ultimate drainage strength. The results show that the new evaluation index, i.e., ultimate drainage strength has a logarithmic correlation with the common index, i.e., permeability coefficient. Moreover, the greater the permeability coefficient is, the stronger the ultimate drainage strength will be. The most effective method for increasing the pavement drainage capacity is to increase the porosity of the asphalt mixture. Thus, a 3D model for the ultimate drainage strength is used to predict the required void ratio of the pavement and optimize the design of the drainage asphalt pavement in the specific environment.

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备注/Memo

备注/Memo:
收稿日期: 2020-04-16.
作者简介: 汪敏(1982—),男,博士生;何兆益(联系人),男,博士,教授,博士生导师,242143956@qq.com.
基金项目: 国家自然科学基金资助项目(51278513).
引用本文: 汪敏,何兆益,张从友.排水沥青路面极限排水强度[J].东南大学学报(自然科学版),2020,50(6):1097-1101. DOI:10.3969/j.issn.1001-0505.2020.06.015.
更新日期/Last Update: 2020-11-20