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隧道建设(中英文) ›› 2019, Vol. 39 ›› Issue (5): 802-809.DOI: 10.3973/j.issn.2096-4498.2019.05.012

• 规划与设计 • 上一篇    下一篇

港珠澳大桥沉管隧道沥青路面结构设计与实施

王民1, 2, 刘晓东3, 郝增恒2, 吕勇刚3   

  1. (1. 重庆市智翔铺道技术工程有限公司, 重庆 401336; 2. 招商局重庆交通科研设计院有限公司, 重庆 400074; 3. 中交公路规划设计院有限公司, 北京 100088)
  • 收稿日期:2018-08-06 修回日期:2019-01-05 出版日期:2019-05-20 发布日期:2020-03-11
  • 作者简介:王民(1979—),男,陕西宝鸡人,2017年毕业于重庆交通大学,道路与铁道工程专业,博士,研究员,现从事桥梁与隧道路面铺装技术工作。Email: panda9496@163.com。
  • 基金资助:

    重庆市科技创新领军人才支持计划(CSTCCXLJRC201902)

Structure Design and Application of Asphalt Pavement to Hong KongZhuhaiMacao Bridge Immersed Tunnel

WANG Min1, 2, LIU Xiaodong3, HAO Zengheng2, LYU Yonggang3   

  1. (1. Chongqing Zhixiang Paving Technology Engineering Co., Ltd., Chongqing 401336, China; 2. China Merchants Chongqing Communications Technology Research & Design Institute Co., Ltd., Chongqing 400074, China; 3. CCCC Highway Consultants Co., Ltd., Beijing 100088, China)
  • Received:2018-08-06 Revised:2019-01-05 Online:2019-05-20 Published:2020-03-11

摘要:

沉管隧道预制管段拼装结构易引发路面反射裂缝,海底隧道封闭、潮湿的施工环境条件易导致基面潮湿、施工困难、路面湿滑等问题。为解决上述技术难题,通过对路面使用环境气候、交通等条件的综合分析,借鉴类似工程实践经验,提出3 cm温拌改性沥青AC10铺装调平层+6 cm温拌改性沥青SMA16铺装下层+4 cm温拌阻燃改性沥青SMA13铺装上层的铺装方案,并制定沉管隧道管节接头、节段接头及路缘等区域的细化处治方案。从隧道路面设计验算及实施检测结果来看,沉管隧道路面结构设计方案与细部方案是科学、合理、可行的,可以为今后类似工程建设提供借鉴。

关键词: 沉管隧道, 沥青路面, 结构设计, 改性沥青SMA, 温拌, 阻燃

Abstract:

The assembled structure of precast tube section of immersed tunnel is easy to cause reflection cracks on the pavement, and the closed and humid construction environment conditions of subsea tunnel can easily lead to damp base surface, construction difficulties and wet pavement. Hence, based on the comprehensive analysis of the climate of pavement environment, traffic and other conditions, and as well the practical experience of similar projects, the paving scheme of 3 cm warm mix modified asphalt AC10 paving leveling layer + 6 cm warm mix modified asphalt SMA16 paving lower layer + 4 cm warm mix modified asphalt with flame retardant SMA13 paving upper layer is proposed, and detailed treatment schemes for tube joints, section joints and curb of immersed tunnel are made. The checking calculation results of tunnel pavement design and the test of implementation show that the pavement structure design scheme and detailed scheme of immersed tunnel are scientific, rational and feasible, which can provide reference for similar projects in the future.

Key words: immersed tunnel, asphalt pavement, structure design, modified asphalt SMA, warm mix, flame retardant

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