隧道沥青路面磨耗层设计与室内实验性能
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摘要
针对既有隧道路面抗滑能力不足、排水不良和沥青路面潜在的火灾风险,基于多孔混凝土设计理念在传统路面结构基础上进行磨耗层设计并验证其力学性能.根据当地气候条件、隧道湿度条件、隧道照明条件、车辆行为特征、表面构造深度和横向力系数调查分析提出了多孔沥青混合料设计目标,并确定了相应的配合比和最佳沥青用量.氧指数试验表明:相较于基质沥青改性后的阻燃沥青氧指数提高约30%.马歇尔试验(浸水马歇尔试验)、车辙试验和渗透性试验表明:多孔沥青混合料的动稳定度较控制组高约65%,残留稳定度较控制组高约14%;车辙深度较控制组低约37%;渗透性指标是控制组的4.3倍.间接拉伸动态模量试验表明:在低温状态下多孔沥青混合料动态模量与控制组之间的差值小于10%,高温状态下多孔沥青混合料较控制组高31%~50%.
According to the current situation of tunnel that skid resistance insufficient imperfectly it is drained and potential fire risk of asphalt pavement, based on the design concept of porous concrete, this study offers a design that pavement wear course and verify its mechanical properties. Based on the analysis of the local climatic conditions, tunnel humidity conditions, tunnel lighting conditions, vehicle behavior, texture depth and side-way force coefficient, the porous asphalt mixture is put forward and determined the concrete proportioning and the optimum asphalt content. The oxygen index test showed that the oxygen index of the flame retardant asphalt improved by about 30% compared with that of the matrix asphalt; Marshall test(Immersion Marshall test), rutting test and permeability test showed that the porous dynamic stability enhance about 65%, residual stability about enhance 14%, rutting depth descend about 37% and 4.3 times of permeability index higher compared to the control group. The indirect tensile dynamic modulus test shows that the difference of dynamic modulus less than 10% between porous asphalt mixture and the control group at low temperature, but at high temperature the dynamic modulus of porous asphalt mixture is higher than control group from 31% to 50%
According to the current situation of tunnel that skid resistance insufficient imperfectly it is drained and potential fire risk of asphalt pavement, based on the design concept of porous concrete, this study offers a design that pavement wear course and verify its mechanical properties. Based on the analysis of the local climatic conditions, tunnel humidity conditions, tunnel lighting conditions, vehicle behavior, texture depth and side-way force coefficient, the porous asphalt mixture is put forward and determined the concrete proportioning and the optimum asphalt content. The oxygen index test showed that the oxygen index of the flame retardant asphalt improved by about 30% compared with that of the matrix asphalt; Marshall test(Immersion Marshall test), rutting test and permeability test showed that the porous dynamic stability enhance about 65%, residual stability about enhance 14%, rutting depth descend about 37% and 4.3 times of permeability index higher compared to the control group. The indirect tensile dynamic modulus test shows that the difference of dynamic modulus less than 10% between porous asphalt mixture and the control group at low temperature, but at high temperature the dynamic modulus of porous asphalt mixture is higher than control group from 31% to 50%
引文
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[2]《中国公路学报》编辑部.中国隧道工程学术研究综述·2015[J].中国公路学报,2015,28(5):1-65.
[3]田艳娟.基于安全性能的隧道出入口过渡段沥青路面表面功能研究[D].西安:长安大学,2011.
[4]BEELDENS A,VAN G D,CAESTECKER C,et al.Performance and durability of porous polymer cement concrete for road pavement[J].Biological Journal of the Linnean Society,1999,67(3):313-330.
[5]FAKHRI M,TARIBAKHSH M.Influence of aggregate grading and creation of macrotexture with the tinning method on the skid resistance of concrete pavements[J].Biogeosciences,2012,10(10):15175-15211.
[6]徐世国.隧道沥青铺面阻燃温拌施工技术的试验研究[J].隧道建设,2010,30(4):371-375.
[7]丛卓红,王莎,郑南翔,等.抗滑降噪型隧道沥青混合料设计[J].中国公路学报,2012,25(4):36-41.
[8]XU T,HUANG X,ZHAO Y.Investigation into the properties of asphalt mixtures containing magnesium hydroxide flame retardant[J].Fire Safety Journal,2011,46(6):330-334.
[9]许涛.隧道火灾过程沥青路面热行为及阻燃抑烟机理研究[D].南京:东南大学,2008.
[10]HIDAYAH A H N,HASANAN M N,RAMADHANSYAH P J.Properties of porous blocks using different sizes of coarse aggregate for pavement[J].Advances in Applied Mechanics,2014,1(1):18-24.
[11]曾伟.透水混凝土配合比设计及性能研究[D].重庆:重庆大学,2007.
[12]LIU Y,TIAN B,NIU K M.Research on skid resistance and noise reduction properties of cement concrete pavements with different surface textures[J].Journal of Highway&Transportation Research&Development,2013,7(2):22-27.
[13]陈瑜.公路隧道高性能多孔水泥混凝土路面研究[D].长沙:中南大学,2007.
[14]韩星,张旭.公路隧道稳态纵向温度升高研究[J].地下空间与工程学报,2006,2(4):591-595.
[15]韩健勇,赵文,陈向利,等.湿热地区长大隧道温湿度场分布及洞壁结露分析[J].铁道学报,2017,39(7):123-132.
[16]JTG H20-2007,公路技术状况评定标准S].
[17]JTG D40-2011,公路水泥混凝土路面设计规范[S].
[18]JTG E30-2005,公路工程水泥及水泥混凝土试验规程[S].
[19]GB/T50081-2016,普通混凝土力学性能试验方法标准[S].
[20]JTG E20-2011,公路工程沥青及沥青混合料试验规程[S].
[21]AASHTO TP 62-03-2002,Standard method of test for determining dynamic modulus of hot-mix asphalt concrete mixtures[S].
[22]付建红.排水性沥青混合料最佳油石比确定方法[J].公路工程,2015,40(4):100-105.
[23]GUO Z,YANG Q,LIU B.Mixture design of pavement surface course considering the performance of skid resistance and disaster proof in road tunnels[J].Journal of Materials in Civil Engineering,2009,21(4):186-190.
[2]《中国公路学报》编辑部.中国隧道工程学术研究综述·2015[J].中国公路学报,2015,28(5):1-65.
[3]田艳娟.基于安全性能的隧道出入口过渡段沥青路面表面功能研究[D].西安:长安大学,2011.
[4]BEELDENS A,VAN G D,CAESTECKER C,et al.Performance and durability of porous polymer cement concrete for road pavement[J].Biological Journal of the Linnean Society,1999,67(3):313-330.
[5]FAKHRI M,TARIBAKHSH M.Influence of aggregate grading and creation of macrotexture with the tinning method on the skid resistance of concrete pavements[J].Biogeosciences,2012,10(10):15175-15211.
[6]徐世国.隧道沥青铺面阻燃温拌施工技术的试验研究[J].隧道建设,2010,30(4):371-375.
[7]丛卓红,王莎,郑南翔,等.抗滑降噪型隧道沥青混合料设计[J].中国公路学报,2012,25(4):36-41.
[8]XU T,HUANG X,ZHAO Y.Investigation into the properties of asphalt mixtures containing magnesium hydroxide flame retardant[J].Fire Safety Journal,2011,46(6):330-334.
[9]许涛.隧道火灾过程沥青路面热行为及阻燃抑烟机理研究[D].南京:东南大学,2008.
[10]HIDAYAH A H N,HASANAN M N,RAMADHANSYAH P J.Properties of porous blocks using different sizes of coarse aggregate for pavement[J].Advances in Applied Mechanics,2014,1(1):18-24.
[11]曾伟.透水混凝土配合比设计及性能研究[D].重庆:重庆大学,2007.
[12]LIU Y,TIAN B,NIU K M.Research on skid resistance and noise reduction properties of cement concrete pavements with different surface textures[J].Journal of Highway&Transportation Research&Development,2013,7(2):22-27.
[13]陈瑜.公路隧道高性能多孔水泥混凝土路面研究[D].长沙:中南大学,2007.
[14]韩星,张旭.公路隧道稳态纵向温度升高研究[J].地下空间与工程学报,2006,2(4):591-595.
[15]韩健勇,赵文,陈向利,等.湿热地区长大隧道温湿度场分布及洞壁结露分析[J].铁道学报,2017,39(7):123-132.
[16]JTG H20-2007,公路技术状况评定标准S].
[17]JTG D40-2011,公路水泥混凝土路面设计规范[S].
[18]JTG E30-2005,公路工程水泥及水泥混凝土试验规程[S].
[19]GB/T50081-2016,普通混凝土力学性能试验方法标准[S].
[20]JTG E20-2011,公路工程沥青及沥青混合料试验规程[S].
[21]AASHTO TP 62-03-2002,Standard method of test for determining dynamic modulus of hot-mix asphalt concrete mixtures[S].
[22]付建红.排水性沥青混合料最佳油石比确定方法[J].公路工程,2015,40(4):100-105.
[23]GUO Z,YANG Q,LIU B.Mixture design of pavement surface course considering the performance of skid resistance and disaster proof in road tunnels[J].Journal of Materials in Civil Engineering,2009,21(4):186-190.