中文核心期刊
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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2019, Vol. 38 ›› Issue (06): 42-47.DOI: 10.3969/j.issn.1674-0696.2019.06.08

• 道路与铁道工程 • 上一篇    下一篇

基于海绵城市体系典型透水路面模型研究

蒋玉龙1，高博1，杨幼江1，吴进良2，王冠3   

  1. (1. 中交第二公路勘察设计研究院有限公司，湖北 武汉 430056；2. 重庆交通大学 土木工程学院，重庆 400074； 3. 重庆交通大学 材料科学与工程学院，重庆 400074)
  • 收稿日期:2018-12-03 修回日期:2019-04-03 出版日期:2019-06-14 发布日期:2019-06-14
  • 作者简介:蒋玉龙(1977—)，男，湖北仙桃人，高级工程师，主要从事路桥方面的研究。E-mail：38317691@qq.com。
  • 基金资助:
    中国交建重大研发项目(2016-ZJKJ-11)

Typical Permeable Pavement Model Based on Sponge City System

JIANG Yulong1, GAP Bo1, YANG Youjiang1, WU Jinliang2, WANG Guan3   

  1. (1. China Communications Second Highway Survey and Design Institute Co., Ltd., Wuhan 430056, Hubei, P. R. China; 2. School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, P. R. China; 3. School of Material Science and Engineering, Chongqing Jiaotong University, Chongqing 400074, P. R. China)
  • Received:2018-12-03 Revised:2019-04-03 Online:2019-06-14 Published:2019-06-14

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摘要： 海绵城市构建中透水材料的使用不可避免。对PAC-13与ATPB-25透水沥青混合料进行研究，分析空隙率与渗透系数的关系，结合有限元分析方法建立不同空隙率、不同厚度透水沥青路面与重庆地区降雨强度的排水模型。研究结果表明：不同透水沥青混合料空隙率与渗透系数均呈现良好的线性关系，空隙率的增大与道路厚度的增加可有效提高路面排水效果。透水道路总厚度较小，改变面层与基层比例均不能提高排水效果；总厚度较大，随着空隙率从18%增加到22%，透水道路蓄水能力显著提高；总厚度达到35 cm且平均空隙率为22%时，透水道路能完全抵抗重庆暴雨强度。

关键词: 道路工程, 透水沥青混合料, 空隙率, 排水模型

Abstract: The use of permeable materials in the construction of sponge city is inevitable. PAC-13 and ATPB-25 permeable asphalt mixture were studied, and the relationship between the void ratio and permeability coefficient was analyzed. Based on this, the drainage model of permeable asphalt pavement with different voids and thicknesses for rainfall intensity in Chongqing area was established by combining the finite element analysis method. The research results show that the void ratio and permeability coefficient of different permeable asphalt mixtures all have a good linear relationship. At the same time, the increase of both void ratio and road thickness can effectively improve the drainage effect of the road surface: when the total thickness of the permeable road is relatively small, changing the ratio of the surface layer to the base layer cannot improve the drainage effect; when the total thickness is larger, the water storage capacity of the permeable road can be significantly improved as the void ratio increases from 18% to 22%; when the total thickness reaches 35cm with the average void ratio of 22%, the permeable road can be completely resistant to the intensity of heavy rain in Chongqing.

Key words: highway engineering, permeable asphalt mixture, void ratio, drainage model

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