甘肃省高寒阴湿地区公路典型病害防治
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摘要
甘肃省甘南藏族自治州及其周边的高寒阴湿区,具有海拔高,气候寒冷,降水丰富,地下水位较高,水源充足,河流发达等独特的地理位置及环境气候特点。该地区已有公路技术等级低,修建质量差,路基窄,弯道半径小,路基边坡不稳定,抗御自然灾害的能力弱,且大部分公路处于山岭重丘区,山高、沟深、坡陡,加之沿线气候恶劣,冬春冰冻、雪灾,夏季水毁灾害较为频繁,道路的服务水平很不适应经济发展的需要。
论文从高寒阴湿地区公路状况调查入手,总结出公路翻浆、泥石流灾害及路面裂缝等普遍发育的病害为该地区公路典型病害,并通过实地调研,分析区域气候条件、水文地质特征和公路病害程度等,研究该地区公路典型病害的发生机理,详细介绍该地区公路病害处治的技术措施和适合该地区公路的设计要求,以期能对该地区公路建设和公路养护提供指导。
论文依据甘肃高寒阴湿地区的地理位置及气候特点,对公路翻浆、泥石流及路面裂缝等典型病害的类型分布及成因进行分析总结,提出高寒阴湿地区的路基设计及养护应充分考虑路基的防冻、防渗,建立以防、引、降为主、以排、堵、换为辅有效的排水系统是防治病害的关键。高寒阴湿地区特殊的气候条件下,填隙碎石垫层和石灰土结构层是防治路基冻胀翻浆的有效技术措施。高寒阴湿地区半刚性路面的横向裂缝绝大部分是温度裂缝,采用针入度较大、粘度较低的沥青及在造价许可的情况下,适当增加沥青面层厚度,或者在半刚性基层和沥青层之间设置级配碎石过渡层,可减少半刚性基层开裂与温缩裂缝的综合作用。
Gannan self-government state and circumjacent borough lies in southern of Gansu province, where the climates was high, cold and dankness, abundance precipitation and amplitude riverhead, high water table, and so on. Roads in these regions are in low grade, bad conditions, narrow roadbed,and small curve radius. Most of these roads are located on the mountain range with unsteady side slopes, infirm ability to resist naturalness disasters, together with frequently calamity, frost and snow in winter and spring, water destroy in the summer, its serving level did not adapt to the economy development.
This research based on the investigating on the spot, summarizing the frost boiling, mud avalanche hazards and pavement cracking as road type diseases, analyzing the region climate and road diseases degree, study on the model diseases happen mechanism, introducing on the punish skills and agreement road design requests in particular, in order to offer guidance to roads building and maintaining in these regions.
This paper according to the geography place and climate points, sums up types , and cause of formation distributing to frost boiling, mud avalanche hazards and pavement cracking , brings forward that this region roads designing and maintaining must consider prevent bed from frostbite and seep, set up effective drainage system. In the high cold wet zone, using fill gap macadam bed course or lime stabilized soil base course can prevent mud boil availably. Preventing roads from water damage and artificial complications, and fathering roads hazards with colligate measures. In the high cold and dankness regions, half rigidity pavement landscape orientation crack mostly was temperature crack, using the asphalt with greatness penetration and low viscosity in the permissive cost instance, adding the asphalt surface thickness propriety, or establish graded aggregate macadam transition layer, which can integrate father the self rigidity road bed crack and temperature crack.
论文从高寒阴湿地区公路状况调查入手,总结出公路翻浆、泥石流灾害及路面裂缝等普遍发育的病害为该地区公路典型病害,并通过实地调研,分析区域气候条件、水文地质特征和公路病害程度等,研究该地区公路典型病害的发生机理,详细介绍该地区公路病害处治的技术措施和适合该地区公路的设计要求,以期能对该地区公路建设和公路养护提供指导。
论文依据甘肃高寒阴湿地区的地理位置及气候特点,对公路翻浆、泥石流及路面裂缝等典型病害的类型分布及成因进行分析总结,提出高寒阴湿地区的路基设计及养护应充分考虑路基的防冻、防渗,建立以防、引、降为主、以排、堵、换为辅有效的排水系统是防治病害的关键。高寒阴湿地区特殊的气候条件下,填隙碎石垫层和石灰土结构层是防治路基冻胀翻浆的有效技术措施。高寒阴湿地区半刚性路面的横向裂缝绝大部分是温度裂缝,采用针入度较大、粘度较低的沥青及在造价许可的情况下,适当增加沥青面层厚度,或者在半刚性基层和沥青层之间设置级配碎石过渡层,可减少半刚性基层开裂与温缩裂缝的综合作用。
Gannan self-government state and circumjacent borough lies in southern of Gansu province, where the climates was high, cold and dankness, abundance precipitation and amplitude riverhead, high water table, and so on. Roads in these regions are in low grade, bad conditions, narrow roadbed,and small curve radius. Most of these roads are located on the mountain range with unsteady side slopes, infirm ability to resist naturalness disasters, together with frequently calamity, frost and snow in winter and spring, water destroy in the summer, its serving level did not adapt to the economy development.
This research based on the investigating on the spot, summarizing the frost boiling, mud avalanche hazards and pavement cracking as road type diseases, analyzing the region climate and road diseases degree, study on the model diseases happen mechanism, introducing on the punish skills and agreement road design requests in particular, in order to offer guidance to roads building and maintaining in these regions.
This paper according to the geography place and climate points, sums up types , and cause of formation distributing to frost boiling, mud avalanche hazards and pavement cracking , brings forward that this region roads designing and maintaining must consider prevent bed from frostbite and seep, set up effective drainage system. In the high cold wet zone, using fill gap macadam bed course or lime stabilized soil base course can prevent mud boil availably. Preventing roads from water damage and artificial complications, and fathering roads hazards with colligate measures. In the high cold and dankness regions, half rigidity pavement landscape orientation crack mostly was temperature crack, using the asphalt with greatness penetration and low viscosity in the permissive cost instance, adding the asphalt surface thickness propriety, or establish graded aggregate macadam transition layer, which can integrate father the self rigidity road bed crack and temperature crack.
引文
[1]JTJ073-96,公路养护技术规范[S].北京:人民交通出版社,2004
[2]JTJ073-2001,公路沥青路面养护技术规范[S].北京:人民交通出版社,2001
[3]JTJ073-97,公路沥青路面设计规范[S].北京:人民交通出版社,2004
[4]JTGD30-2004,公路路基设计规范[S].北京:人民交通出版社,2004
[5]JTJ033-95,公路路基施工技术规范[S].北京:人民交通出版社,2005
[6]JTJ018-97,公路排水设计规范[S].北京:人民交通出版社,2005
[7]王红霞.公路养护与管理技术[M].北京:人民交通出版社,2006
[8]沙庆林.高速公路沥青路面早期破坏现象与预防[M].北京:人民交通出版社,2003
[9]黄波.寒区道路翻浆和防治技术的研究现状[J].青海交通科技.2005(1):22-24
[10]西部交通建设科技项目.甘肃公路自然区划及环境参数研究报告[R].兰州:2005
[11]徐世法,等.沥青铺装层病害防治与典型实例[M].北京:人民交通出版社,2005
[12]郝培文.沥青路面施工与维修技术[M].北京:人民交通出版社,2001
[13]许永明.公路养护与管理[M].北京:人民交通出版社,2004
[14]李上红.公路工程施工常见地质病害处治技术[M].北京:人民交通出版社,2004
[15]沙庆林.高等级公路半刚性基层沥青路面[M].北京:人民交通出版社,1998
[16]沈金安,等.高速公路沥青路面早期损坏分析与防治对策[M].北京:人民交通出版社,2004
[17]沙庆林.高速公路沥青路面早期破坏现象与预防[M].北京:人民交通出版社,2003
[18]袁建议,陈洪凯,唐洪梅.翻浆路基中温度传导机理初步研究[J].重庆交通学院学报.2003,22(2):93-95
[19]陈洪凯,张雪清,唐红梅等.高寒地区道路翻浆发育机理研究[J].重庆交通学院学报.2002,21(3):47-51
[20]霍凯成,张全林,罗国荣.用土工合成材料治理道路翻浆的研究[J].岩土力学.2003,24(1):45-48
[21]李志强.公路工程地质与地貌[M].兰州:兰州大学出版社,2005
[22]窦明健,杨晨光,陈忠达等.渭清公路黄龙段道路翻浆成因[J].长安大学学报(自然科学版).2003,23(5):9-13
[23]陈洪凯,叶四桥,张雪清等.道路翻浆路段抗浆结构模型试验研究[J].重庆交通学院 学报.2002,21(4):42-45
[24]交通部第二公路勘察设计院.公路设计手册—路基[G].北京:人民交通出版社,1996
[25]孙家驷.道路设计资料集[G].北京:人民交通出版社,2001
[26]唐红梅,马永泰等.公路泥石流研究及治理.北京:人民交通出版社,2004
[27]钱育通.四川省高寒地区公路病害的防治及沥青路面修筑技术的研究[D].西安:长安大学,2001
[28]赵洪涛.国道212线甘肃境内段沿线滑坡泥石流活动强度评价与区划研究[J].兰州大学学报.2004,40(5):87-91
[29]陈洪凯,等.公路泥石流防治工程设计指南梗概[J].公路.2005,11:136-141
[2]JTJ073-2001,公路沥青路面养护技术规范[S].北京:人民交通出版社,2001
[3]JTJ073-97,公路沥青路面设计规范[S].北京:人民交通出版社,2004
[4]JTGD30-2004,公路路基设计规范[S].北京:人民交通出版社,2004
[5]JTJ033-95,公路路基施工技术规范[S].北京:人民交通出版社,2005
[6]JTJ018-97,公路排水设计规范[S].北京:人民交通出版社,2005
[7]王红霞.公路养护与管理技术[M].北京:人民交通出版社,2006
[8]沙庆林.高速公路沥青路面早期破坏现象与预防[M].北京:人民交通出版社,2003
[9]黄波.寒区道路翻浆和防治技术的研究现状[J].青海交通科技.2005(1):22-24
[10]西部交通建设科技项目.甘肃公路自然区划及环境参数研究报告[R].兰州:2005
[11]徐世法,等.沥青铺装层病害防治与典型实例[M].北京:人民交通出版社,2005
[12]郝培文.沥青路面施工与维修技术[M].北京:人民交通出版社,2001
[13]许永明.公路养护与管理[M].北京:人民交通出版社,2004
[14]李上红.公路工程施工常见地质病害处治技术[M].北京:人民交通出版社,2004
[15]沙庆林.高等级公路半刚性基层沥青路面[M].北京:人民交通出版社,1998
[16]沈金安,等.高速公路沥青路面早期损坏分析与防治对策[M].北京:人民交通出版社,2004
[17]沙庆林.高速公路沥青路面早期破坏现象与预防[M].北京:人民交通出版社,2003
[18]袁建议,陈洪凯,唐洪梅.翻浆路基中温度传导机理初步研究[J].重庆交通学院学报.2003,22(2):93-95
[19]陈洪凯,张雪清,唐红梅等.高寒地区道路翻浆发育机理研究[J].重庆交通学院学报.2002,21(3):47-51
[20]霍凯成,张全林,罗国荣.用土工合成材料治理道路翻浆的研究[J].岩土力学.2003,24(1):45-48
[21]李志强.公路工程地质与地貌[M].兰州:兰州大学出版社,2005
[22]窦明健,杨晨光,陈忠达等.渭清公路黄龙段道路翻浆成因[J].长安大学学报(自然科学版).2003,23(5):9-13
[23]陈洪凯,叶四桥,张雪清等.道路翻浆路段抗浆结构模型试验研究[J].重庆交通学院 学报.2002,21(4):42-45
[24]交通部第二公路勘察设计院.公路设计手册—路基[G].北京:人民交通出版社,1996
[25]孙家驷.道路设计资料集[G].北京:人民交通出版社,2001
[26]唐红梅,马永泰等.公路泥石流研究及治理.北京:人民交通出版社,2004
[27]钱育通.四川省高寒地区公路病害的防治及沥青路面修筑技术的研究[D].西安:长安大学,2001
[28]赵洪涛.国道212线甘肃境内段沿线滑坡泥石流活动强度评价与区划研究[J].兰州大学学报.2004,40(5):87-91
[29]陈洪凯,等.公路泥石流防治工程设计指南梗概[J].公路.2005,11:136-141