市政道路改造工程中的理论分析与试验研究
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摘要
随着国民经济的快速发展,道路交通运量迅猛增长,既有公路、城市道路等旧路加宽加铺改造工程也大量付诸实施,特别是近几年来交通量持续增长,将原有道路拓宽的任务已经迫在眉睫。对旧路进行加宽改造是提高既有道路等级和改善路网结构的有效措施,不仅能够解决当前投入的困难,又能快速满足日益增长的交通需求。而对旧路进行加宽改造,方案设计是决定成败的关键因素。在铺筑试验路并进行现场观测的同时,探索旧路加宽的理论分析方法,可为今后的旧路加宽改造工程提供十分有益的借鉴。
由于旧路基已基本沉降趋于稳定,而新加宽的路基会产生较大的沉降和塑性累计变形。新旧路基间的差异沉降与塑性累积变形造成了路基表面的不平整,因而产生路面结构的脱空,从而导致路面的坑洼和开裂破坏等,严重影响道路的行驶质量及使用寿命。在旧路加宽加铺改造工程中要特别注意。
本文通过分析道路拓宽后差异沉降的研究现状,指出了目前计算方法的不足。对需改扩建道路进行了工程勘查,现场检测,采集路基土样,对土样进行了室内试验,取得土力学指标,以此为基础,结合通用有限元程序ADINA和ANSYS,建立路基固结沉降有限元分析模型,模拟新老道路路基的差异沉降和稳定问题,研究其沉降变形及其应力分布规律,并与实测结果作了对比,依据计算结果对旧路拓宽的设计和施工提出一点建议。
Along with the fast increase of the national economy, the traffic of the roads is increasing rapidly as well. The upgrading projects to the old roads are doing more and more. Especially the traffic is increasing persistently in recent years, this task becomes more and more emergent. The rebuilding to the roads is not only usful measure to upgrade the road grad and ameliorate the road framework, can solve the financial problem, but also satisfy the demand of the increasing traffic. Project of the rebuilding work is the most important factor. Seeking after the theoretics of the rebuilding project along with the paving tests and observation in locale can be used for reference in the works henceforth.
Because the sedimentation of the former roadbed are going to stabilization, while the roadbed newly will producing large sedimentation and cumulating plastic distortion. The sedimental discrepancy and cumulating plastic distortion will make the road accidented and peel off, resulting in the potholes and craze accordingly, impacting the running quality and using life seriously. We should pay much attention to these problems especially.
Based on the analysi of actual study on the differential settlement of widened road, the shortage of these methods is brought forward. Do engineering reconnaissances to the former road, as wellas the local detections, gather the soil stylebooks, do the indoor tests to the soil stylebooks, get the soil parameters. Based on the anterior works, combine with the finite progrom ADINA and ANSYS, establish the sedimentation model of the roadbed, simulate the diferential settlement and stabilization problems, study the distortion and stress, do contrast with the actual value. Based on the analysis result, make suggestions to the design and construction of the upgrading and revising projects.
由于旧路基已基本沉降趋于稳定,而新加宽的路基会产生较大的沉降和塑性累计变形。新旧路基间的差异沉降与塑性累积变形造成了路基表面的不平整,因而产生路面结构的脱空,从而导致路面的坑洼和开裂破坏等,严重影响道路的行驶质量及使用寿命。在旧路加宽加铺改造工程中要特别注意。
本文通过分析道路拓宽后差异沉降的研究现状,指出了目前计算方法的不足。对需改扩建道路进行了工程勘查,现场检测,采集路基土样,对土样进行了室内试验,取得土力学指标,以此为基础,结合通用有限元程序ADINA和ANSYS,建立路基固结沉降有限元分析模型,模拟新老道路路基的差异沉降和稳定问题,研究其沉降变形及其应力分布规律,并与实测结果作了对比,依据计算结果对旧路拓宽的设计和施工提出一点建议。
Along with the fast increase of the national economy, the traffic of the roads is increasing rapidly as well. The upgrading projects to the old roads are doing more and more. Especially the traffic is increasing persistently in recent years, this task becomes more and more emergent. The rebuilding to the roads is not only usful measure to upgrade the road grad and ameliorate the road framework, can solve the financial problem, but also satisfy the demand of the increasing traffic. Project of the rebuilding work is the most important factor. Seeking after the theoretics of the rebuilding project along with the paving tests and observation in locale can be used for reference in the works henceforth.
Because the sedimentation of the former roadbed are going to stabilization, while the roadbed newly will producing large sedimentation and cumulating plastic distortion. The sedimental discrepancy and cumulating plastic distortion will make the road accidented and peel off, resulting in the potholes and craze accordingly, impacting the running quality and using life seriously. We should pay much attention to these problems especially.
Based on the analysi of actual study on the differential settlement of widened road, the shortage of these methods is brought forward. Do engineering reconnaissances to the former road, as wellas the local detections, gather the soil stylebooks, do the indoor tests to the soil stylebooks, get the soil parameters. Based on the anterior works, combine with the finite progrom ADINA and ANSYS, establish the sedimentation model of the roadbed, simulate the diferential settlement and stabilization problems, study the distortion and stress, do contrast with the actual value. Based on the analysis result, make suggestions to the design and construction of the upgrading and revising projects.
引文
[1]廖小建,陈红艳.我国建筑工程质量检测机构现状及发展分析[J].工程质量,2005(9):8-10.
[2]贾文学.建筑工程质量检测行业现状及发展对策[J].工程质量,2005(11):12-14.
[3]唐永毅.建筑工程检测新技术的应用与发展[J].广东建材,2006(5):94-95.
[4]刘屠梅.建设工程检测行业管理体系探讨[J].工程建设与设计,2005(8):48-50.
[5]王仪,姜景.建筑工程检测鉴定行业现状及发展对策[J].山西建筑,2003(4):234-235.
[6]王祖华,陈眼云.混凝土与砌体结构[M].广州:华南理工大学出版社,1996.
[7]一级注册结构工程师必备规范规程汇编[M].北京:中国建筑工业出版社,1997.
[8]朱作云.城市道路改造断面的设计构思及优化[J].天津市政设计,2003(2):40-43.
[9]窦汝良.城市道路改造中沥青混凝土罩面工程的质量控制[J].科技情报开发与经济,2006(2):287-289.
[10]徐向东.城市道路加铺沥青混凝土技术控制要点[J].应用指南,2006(14):16-17.
[11]毕克妮,宋力.城市道路空间改造实例剖析[J].山西建筑,2005(9):45,158.
[12]钟颂.城市旧道路加铺面层后反射裂缝的防治[J].重庆三峡学院学报,2003(2):127-128.
[13]赵花丽,易晓卫.道路“白加黑改造”后路面裂缝的防治[J].山西建筑,2004(9):205-206.
[14]陈亿琳,丁建明,陈素华.道路改造纵断面计算机自动设计[J].公路交通科技,2005(8):23-25.
[15]楼建新.对城市旧沥青道路的改造初探[J]。科技资讯,2006(19):56-57.
[16]周滨.高等级公路扩建的思考[J].工程技术,2006(7):121-124.
[17]王贫教,程火焰.工程结构的检测与加固研究[J].广东水利水电,2004(10):22-24.
[18]周岳年,陈岳龙.建筑工程结构实物质量抽样检测实践与建议[J].工程质量,2006(11):22-23.
[19]孙悦萍,房迎军.旧路改造升级处理浅谈[J].北方交通,2006(10):16-18.
[20]崔素敏.旧路改造中路面检测的初步探讨[J].公路,2006(9):103-104.
[21]张艳.旧路加宽改造综合处理技术的探析[J]。黑龙江交通科技,2005(2):20-26.
[22]岳福青,杨春风.沥青混凝土路面纵向裂缝的有限元分析[J].交通科技,2003(6):31-33.
[23]范玉珍,李全.城市水泥混凝土路面损坏原因分析与改造设计[J].规划与设计,2005(2):95-98.
[24]张文渊.浅谈城市道路建设(改造)过程中的施工监理[J].城市道路与防洪,2001(4):54-55.
[25]丁立新.浅谈工程结构加固改造[J].建设监理,2005(5):72-74.
[26]田林国.浅析泽当镇道路改造工程质量控制[J].交通科技,2002(4):75-76.
[27]李素艳.浅议旧城市道路改造中的横断面[J].城市交通,2002(4):18-23.
[28]曹恒丰.市政道路改造施工中控制测量工作应注意的几个问题[J].辽宁交通科技,2004(8):41-42.
[29]杨建斌.拓宽道路路面开裂的有限元分析[J].广西交通科技,2003(6):102-103.
[30]薛守义.有限单元法[M].第一版.北京:中国建材工业出版社,2005:1-2.
[31]朱伯芳.有限单元法原理与应用[M].北京:中国水利水电出版社,1998.
[32]GB50009-2001.中华人民共和国标准.建筑结构荷载规范[S].北京:中国建筑工业出版社,2002.
[33]GB/T50123-1999.中华人民共和国标准.土工试验方法标准[S].北京:中国建筑工业出版社,2002.
[34]周果行.工民建专业毕业设计指南[M]。第2版.北京:中国建筑工业出版社,1997:423-441
[35]梁兴文,史庆轩.土木工程专业毕业设计指导[M]。第1版.北京:科学出版社,2002:196-275.
[36]Kveiborg Ole,Fosgerau,Mogens.Decomposing the decoupling of Danish road freight traffic growth and economic growth[J].Transport Policy,2007,14(1):39-41.
[37]Yan,Li;Yang,Junsheng;Gao,Yanxi;Liu,Baochen.Numerical analysis of geosynthetics treatment in old road widening[J].Chinese Journal of Rock Mechanics and Engineering,2007,Vol.25:1670-1675.
[38]Wang,Hao;Huang,Xiaoming.The study of ground and embankment treatment techniques in road widening[J].Geotechnical Special Publication,2006,n154:212-219.
[39]Huang,Qin-Long;Ling,Jian-Ming;Tang,Bo-Ming;Meng,Hua.Distress characteristics and mechanism in road widening engineering[J].Journal of Tongji University,2004,32(2):197-201.
[40]Brackley,I.J.A.Assessment of risk for road widened over unstable rock slope[J].Proceedings of the International Conference on Soil Mechanics and Foundation Engineering,1989,Vol.3:1607-1613.
[41]Rowsell,Steve.Widening the roads programme[J].Highways,2003,72(1):12-13.
[42]Ritter,Stephen K.Widening the road for C-C bonds[J].Chemical and Engineering News,2002,80(5):26-27.
[43]Maylin,M.Road widening in a New Zealand alpine pass[J].Concrete(London),2001,35(10):24.
[44]Jones,D.E.R.Use of Reinforced Earth(TM)walls in road widening through the Sterkspruit Valley[J].Civil Engineering(South Africa),1994,2(10):23.
[45]Monnickendarn,Alan.The Paddington bridge project-Reconstruction of Bishop's bridge road overbddge[J].Concrete(London),2006,40(5):24-25.
[46]Lunardi,P.Widening the load at Nazzano[J].Tunnels and Tunnelling International,2003,35(7):16-19.
[47]Fisher,John E.;Camou,Robert E.SAFETY BENEFIT OF ARTERIAL STREET WIDENING[J].Transportation Engineering,1977,49(10):23-27.
[48]Anon.CONCRETE INTERSTATE WIDENED AND RECYCLED UNDER TRAFFIC[J].Highway and Heavy Construction,1984,127(9):42-43.
[49]Mortimore,P.E.M5 MOTORWAY WIDENING AND RECONSTRUCTION[J].Highways and Transportation,1988,35(4):5-11.
[50]Hofmann,Frederick J.HIGHWAY WIDENING PROCEEDS BEHIND SEMI-PERMANENT MEDIAN BARRIER[J].Civil Engineering(New York),1978,48(3):92-94.
[51]Fisher,John E.;Camou,Robert E.SAFETY BENEFIT OF ARTERIAL STREET WIDENING[J].Compendium of Technical Papers,Annual Meeting-Institute of Transportation Engineers,1977:13-17.
[2]贾文学.建筑工程质量检测行业现状及发展对策[J].工程质量,2005(11):12-14.
[3]唐永毅.建筑工程检测新技术的应用与发展[J].广东建材,2006(5):94-95.
[4]刘屠梅.建设工程检测行业管理体系探讨[J].工程建设与设计,2005(8):48-50.
[5]王仪,姜景.建筑工程检测鉴定行业现状及发展对策[J].山西建筑,2003(4):234-235.
[6]王祖华,陈眼云.混凝土与砌体结构[M].广州:华南理工大学出版社,1996.
[7]一级注册结构工程师必备规范规程汇编[M].北京:中国建筑工业出版社,1997.
[8]朱作云.城市道路改造断面的设计构思及优化[J].天津市政设计,2003(2):40-43.
[9]窦汝良.城市道路改造中沥青混凝土罩面工程的质量控制[J].科技情报开发与经济,2006(2):287-289.
[10]徐向东.城市道路加铺沥青混凝土技术控制要点[J].应用指南,2006(14):16-17.
[11]毕克妮,宋力.城市道路空间改造实例剖析[J].山西建筑,2005(9):45,158.
[12]钟颂.城市旧道路加铺面层后反射裂缝的防治[J].重庆三峡学院学报,2003(2):127-128.
[13]赵花丽,易晓卫.道路“白加黑改造”后路面裂缝的防治[J].山西建筑,2004(9):205-206.
[14]陈亿琳,丁建明,陈素华.道路改造纵断面计算机自动设计[J].公路交通科技,2005(8):23-25.
[15]楼建新.对城市旧沥青道路的改造初探[J]。科技资讯,2006(19):56-57.
[16]周滨.高等级公路扩建的思考[J].工程技术,2006(7):121-124.
[17]王贫教,程火焰.工程结构的检测与加固研究[J].广东水利水电,2004(10):22-24.
[18]周岳年,陈岳龙.建筑工程结构实物质量抽样检测实践与建议[J].工程质量,2006(11):22-23.
[19]孙悦萍,房迎军.旧路改造升级处理浅谈[J].北方交通,2006(10):16-18.
[20]崔素敏.旧路改造中路面检测的初步探讨[J].公路,2006(9):103-104.
[21]张艳.旧路加宽改造综合处理技术的探析[J]。黑龙江交通科技,2005(2):20-26.
[22]岳福青,杨春风.沥青混凝土路面纵向裂缝的有限元分析[J].交通科技,2003(6):31-33.
[23]范玉珍,李全.城市水泥混凝土路面损坏原因分析与改造设计[J].规划与设计,2005(2):95-98.
[24]张文渊.浅谈城市道路建设(改造)过程中的施工监理[J].城市道路与防洪,2001(4):54-55.
[25]丁立新.浅谈工程结构加固改造[J].建设监理,2005(5):72-74.
[26]田林国.浅析泽当镇道路改造工程质量控制[J].交通科技,2002(4):75-76.
[27]李素艳.浅议旧城市道路改造中的横断面[J].城市交通,2002(4):18-23.
[28]曹恒丰.市政道路改造施工中控制测量工作应注意的几个问题[J].辽宁交通科技,2004(8):41-42.
[29]杨建斌.拓宽道路路面开裂的有限元分析[J].广西交通科技,2003(6):102-103.
[30]薛守义.有限单元法[M].第一版.北京:中国建材工业出版社,2005:1-2.
[31]朱伯芳.有限单元法原理与应用[M].北京:中国水利水电出版社,1998.
[32]GB50009-2001.中华人民共和国标准.建筑结构荷载规范[S].北京:中国建筑工业出版社,2002.
[33]GB/T50123-1999.中华人民共和国标准.土工试验方法标准[S].北京:中国建筑工业出版社,2002.
[34]周果行.工民建专业毕业设计指南[M]。第2版.北京:中国建筑工业出版社,1997:423-441
[35]梁兴文,史庆轩.土木工程专业毕业设计指导[M]。第1版.北京:科学出版社,2002:196-275.
[36]Kveiborg Ole,Fosgerau,Mogens.Decomposing the decoupling of Danish road freight traffic growth and economic growth[J].Transport Policy,2007,14(1):39-41.
[37]Yan,Li;Yang,Junsheng;Gao,Yanxi;Liu,Baochen.Numerical analysis of geosynthetics treatment in old road widening[J].Chinese Journal of Rock Mechanics and Engineering,2007,Vol.25:1670-1675.
[38]Wang,Hao;Huang,Xiaoming.The study of ground and embankment treatment techniques in road widening[J].Geotechnical Special Publication,2006,n154:212-219.
[39]Huang,Qin-Long;Ling,Jian-Ming;Tang,Bo-Ming;Meng,Hua.Distress characteristics and mechanism in road widening engineering[J].Journal of Tongji University,2004,32(2):197-201.
[40]Brackley,I.J.A.Assessment of risk for road widened over unstable rock slope[J].Proceedings of the International Conference on Soil Mechanics and Foundation Engineering,1989,Vol.3:1607-1613.
[41]Rowsell,Steve.Widening the roads programme[J].Highways,2003,72(1):12-13.
[42]Ritter,Stephen K.Widening the road for C-C bonds[J].Chemical and Engineering News,2002,80(5):26-27.
[43]Maylin,M.Road widening in a New Zealand alpine pass[J].Concrete(London),2001,35(10):24.
[44]Jones,D.E.R.Use of Reinforced Earth(TM)walls in road widening through the Sterkspruit Valley[J].Civil Engineering(South Africa),1994,2(10):23.
[45]Monnickendarn,Alan.The Paddington bridge project-Reconstruction of Bishop's bridge road overbddge[J].Concrete(London),2006,40(5):24-25.
[46]Lunardi,P.Widening the load at Nazzano[J].Tunnels and Tunnelling International,2003,35(7):16-19.
[47]Fisher,John E.;Camou,Robert E.SAFETY BENEFIT OF ARTERIAL STREET WIDENING[J].Transportation Engineering,1977,49(10):23-27.
[48]Anon.CONCRETE INTERSTATE WIDENED AND RECYCLED UNDER TRAFFIC[J].Highway and Heavy Construction,1984,127(9):42-43.
[49]Mortimore,P.E.M5 MOTORWAY WIDENING AND RECONSTRUCTION[J].Highways and Transportation,1988,35(4):5-11.
[50]Hofmann,Frederick J.HIGHWAY WIDENING PROCEEDS BEHIND SEMI-PERMANENT MEDIAN BARRIER[J].Civil Engineering(New York),1978,48(3):92-94.
[51]Fisher,John E.;Camou,Robert E.SAFETY BENEFIT OF ARTERIAL STREET WIDENING[J].Compendium of Technical Papers,Annual Meeting-Institute of Transportation Engineers,1977:13-17.