港珠澳大桥沉管隧道沥青路面结构设计与实施
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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3cm温拌改性沥青AC10铺装调平层+6cm温拌改性沥青SMA16铺装下层+4cm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。
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.
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.
引文
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[14]葛渝.SMA路面设计与施工质量过程控制研究[D].西安:西安工业大学,2017.GE Yu.Research on SMA pavement design and construction quality process control[D].Xi′an:Xi′an Technological University,2017.
[15]陈建中.全无缝桥梁接线路面合理长度研究[D].湖南:湖南大学,2013.CHEN Jianzhong.Study of reasonable length of fully seamless bridge wiring pavement[D].Hunan:Hunan University,2013.
[2]尹海卿.港珠澳大桥岛隧工程设计施工关键技术[J].隧道建设,2014,34(1):60.YIN Haiqing.Key technologies applied in design and construction of artificial islands and immersed tunnel of Hong Kong-Zhuhai-Macao Bridge(HZMB)project[J].Tunnel Construction,2014,34(1):60.
[3]陈韶章,苏宗贤,陈越.港珠澳大桥沉管隧道新技术[J].隧道建设,2015,35(5):396.CHEN Shaozhang,SU Zongxian,CHEN Yue.New technologies used for immersed tunnel of Hongkong-ZhuhaiMacao Bridge project[J].Tunnel Construction,2015,35(5):396.
[4]曲立清,王希浩,杨波.海底隧道节能减排型沥青路面技术与应用[J].公路交通科技(应用技术版),2012,11:286.QU Liqing,WANG Xihao,YANG Bo.Technology and application of energy saving and emission reduction asphalt pavement in submarine tunnel[J].Journal of Highway and Transportation Research and Technology,2012,11:286.
[5]TORALDO Emanuele.Comparative laboratory investigation into pavement materials for road tunnels[J].Road Materials and Pavement Design,2013,14(2):310.
[6]温晓明.环境友好型隧道沥青路面关键技术研究[D].重庆:重庆交通大学,2015.WEN Xiaoming.Research on key technologies of environmental-friendly tunnel asphalt pavement[D].Chongqing:Chongqing Jiaotong University,2015.
[7]JEONG Sangkyoon,KIM Jechun.The immersed tunnel and bridges of Busan-Geoje fixed link[J].Structural Engineering International,2012,22(1):20.
[8]CHO Bonghyun,HEO Jinwook.Immersion details of BusanGeoje immersed tunnel[J].Iabse Congress Report,2012,18(22):668.
[9]陈小乐.高强抗裂性弹性混凝土复合材料在公路桥梁桥面连续结构中的应用技术研究[D].黑龙江:哈尔滨工业大学,2017.CHEN Xiaole.Application technology of high-strength crack-resistant elastic concrete composite in continuous structure of highway bridge deck[D].Heilongjiang:Harbin Institute of Technology,2017.
[10]李汝凯,刘秘强,周刚,等.DZFH新型道路抗裂贴防反射裂缝性能研究[J].重庆交通大学学报(自然科学版),2017,36(10):51.LI Rukai,LIU Miqiang,ZHOU Gang,et al.Performance study of reflective resistance crack of DZFH road crack paste[J].Journal of Chongqing Jiaotong Unirersity(Natural Science),2017,36(10):51.
[11]周刚,李汝凯,王火明,等.经编复合聚酯玻纤布防反射裂缝性能试验[J].中国公路学报,2016,29(2):16.ZHOU Gang,LI Rukai,WANG Huoming,et al.Test on performance of reflective cracking resistance of warp knitting fiberglass-polyester paving mat[J].China Journal of Highway and Transport,2016,29(2):16.
[12]林鸣,林巍,刘晓东,等.港珠澳大桥沉管隧道路面问题的探讨与改良构想[J].中国港湾建设,2017,37(10):1.LIN Ming,LIN Wei,LIU Xiaodong,et al.Discussions on pavement problem of Hong Kong-Zhuhai-Macao Bridge immersed tunnel and its improvement[J].China Harbour Construction,2017,37(10):1.
[13]李哈汀,胥新伟,高潮,等.港珠澳大桥沉管隧道施工监测系统[J].中国港湾建设,2015,35(7):49.LI Hating,XU Xinwei,GAO Chao,et al.Construction monitoring system for immersed tunnel of Hong KongZhuhai-Macao Bridge[J].China Harbour Construction,2015,35(7):49.
[14]葛渝.SMA路面设计与施工质量过程控制研究[D].西安:西安工业大学,2017.GE Yu.Research on SMA pavement design and construction quality process control[D].Xi′an:Xi′an Technological University,2017.
[15]陈建中.全无缝桥梁接线路面合理长度研究[D].湖南:湖南大学,2013.CHEN Jianzhong.Study of reasonable length of fully seamless bridge wiring pavement[D].Hunan:Hunan University,2013.
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