武广客运专线过渡段沉降分析与控制
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摘要
客运专线的快速发展给线下基础的稳定带来了新的考验,也给线下基础部分施工和维护带来了许多新的技术难题。特别在路基和桥梁、涵洞、隧道等的过渡段处,轨道和结构物刚度的存在显著差异,极易在过渡段不同结构物处产生沉降差异,从而引起过渡段的线路不平顺,对高速行车的安全、平稳、舒适、快速带来了很大的影响。
为严格控制过渡段的沉降差异,满足客动专线运营中平顺、平稳的相关要求,从客运专线设计、施工及运营整个过程中,不但需对路基段、过渡段等各结构物采取相应的地基加固措施,还需对所有结构部位开展系统沉降观测,以控制沉降及沉降差异,确保线路平顺。
本文首先从理论上探讨了过渡段沉降原因、过渡段结构特征、沉降变形机理,然后论述客运专线各种过渡段设计施工过程中采取的相应的技术措施,以此来控制过渡段沉降差异,满足客运专线运营中高速行车的安全性和舒适性。本文在遵循《客运专线铁路无砟轨道铺设条件评估技术指南》的前提条件下,结合长期现场实测及沉降评估分析的实践经验,进行沉降预测的分析推算,满足线路开通条件,同时对武广专线运营过程中对过渡段进一步进行沉降观测,评估过渡段处于稳定状态中,并对过渡段在运营当中出现的病害采取相应的整治措施及方案。
最后结合现场实际观测情况及预测沉降过程的经验,提出沉降观测过程控制中需进一步改进和研究的内容。
The rapid development of passenger dedicated line to line the stability of foundation brings new challenges to the line, also under the base portion of the design and construction has brought many new technical problems. Especially in the roadbed and bridge, culvert, tunnel transition section track structure stiffness, and the significant differences exist, easily in transition section of different structures of the settlement of differences, resulting in the transition section of the track irregularity, on high speed driving safety, smooth, comfortable, fast and has great influence.
To strictly control the transition section settlement difference, to meet customer pneumatic line operation, smooth ride of the relevant requirements, from design, construction and operation of passenger dedicated line in the whole process, not only on the subgrade section, transition section of the structure corresponding reinforcement measures, are required to have the site to carry out the system structure of the settlement observation, to control the settlement and settlement difference, to ensure the smooth lines.
This paper theoretically discusses the transition section settlement of transition section, structure characteristics, settlement deformation principle, and then discusses a variety of transition section of passenger dedicated railway line design and construction process to take corresponding measures, so as to control the settlement difference of transition section, satisfy the passenger dedicated line operation in high speed driving safety and comfort. In this paper, following the "passenger dedicated railway ballastless track laying condition of guide" condition, combined with long-term field and settlement assessment and analysis of practical experience, subsidence forecast analysis and calculation of line opened, meet the conditions, at the same time on Wuhan-Guangzhou Railway operation process of transition section further settlement observation, assessment of transition section is in stable state, and the transition section under operation problems and take corresponding measures and solutions.
Finally, combining with the actual observation and prediction of settlement process experience, put forward the settlement observation in the process control need to be improved further and research contents.
为严格控制过渡段的沉降差异,满足客动专线运营中平顺、平稳的相关要求,从客运专线设计、施工及运营整个过程中,不但需对路基段、过渡段等各结构物采取相应的地基加固措施,还需对所有结构部位开展系统沉降观测,以控制沉降及沉降差异,确保线路平顺。
本文首先从理论上探讨了过渡段沉降原因、过渡段结构特征、沉降变形机理,然后论述客运专线各种过渡段设计施工过程中采取的相应的技术措施,以此来控制过渡段沉降差异,满足客运专线运营中高速行车的安全性和舒适性。本文在遵循《客运专线铁路无砟轨道铺设条件评估技术指南》的前提条件下,结合长期现场实测及沉降评估分析的实践经验,进行沉降预测的分析推算,满足线路开通条件,同时对武广专线运营过程中对过渡段进一步进行沉降观测,评估过渡段处于稳定状态中,并对过渡段在运营当中出现的病害采取相应的整治措施及方案。
最后结合现场实际观测情况及预测沉降过程的经验,提出沉降观测过程控制中需进一步改进和研究的内容。
The rapid development of passenger dedicated line to line the stability of foundation brings new challenges to the line, also under the base portion of the design and construction has brought many new technical problems. Especially in the roadbed and bridge, culvert, tunnel transition section track structure stiffness, and the significant differences exist, easily in transition section of different structures of the settlement of differences, resulting in the transition section of the track irregularity, on high speed driving safety, smooth, comfortable, fast and has great influence.
To strictly control the transition section settlement difference, to meet customer pneumatic line operation, smooth ride of the relevant requirements, from design, construction and operation of passenger dedicated line in the whole process, not only on the subgrade section, transition section of the structure corresponding reinforcement measures, are required to have the site to carry out the system structure of the settlement observation, to control the settlement and settlement difference, to ensure the smooth lines.
This paper theoretically discusses the transition section settlement of transition section, structure characteristics, settlement deformation principle, and then discusses a variety of transition section of passenger dedicated railway line design and construction process to take corresponding measures, so as to control the settlement difference of transition section, satisfy the passenger dedicated line operation in high speed driving safety and comfort. In this paper, following the "passenger dedicated railway ballastless track laying condition of guide" condition, combined with long-term field and settlement assessment and analysis of practical experience, subsidence forecast analysis and calculation of line opened, meet the conditions, at the same time on Wuhan-Guangzhou Railway operation process of transition section further settlement observation, assessment of transition section is in stable state, and the transition section under operation problems and take corresponding measures and solutions.
Finally, combining with the actual observation and prediction of settlement process experience, put forward the settlement observation in the process control need to be improved further and research contents.
引文
[1]铁建设函[2006]158号.客运专线铁路无砟轨道铺设条件评估技术指南[M].北京：铁道部,2006.
[2]铁建设函[2005]754号.客运专线无砟轨道铁路设计指南[M].北京：铁道部,2005.
[3]铁建设[2007]4号.新建时速300-350公里客运专线铁路设计暂行规定(上、下)[M].北京：铁道部,2007.
[4]陈善雄,宋剑,周全能,等.高速铁路沉降变形观测评估理论与实践[M].北京：中国铁道出版社,2010.
[5]PGiroudetal. Geotextie-reinforced unpaved road design [J]. Journal of Geo. Eng. ASCE,1981.
[6]铁建设[2006]189号.客运专线无砟轨道铁路工程测量暂行规定[M].北京：铁道部,2006.
[7]胡荣光.客运专线路基沉降规律影响因素分析与沉降预测[D].长沙：中南大学,2008.
[8]王星运.铁路客运专线路基沉降预测方法研究[D].北京：中国科学研究院,2009.
[9]Hooper. J.A.,Observations on The Behavior of a Piled Raft Foundation on London Clay. Proc. Int. Civ. Eng.,1973.
[10]British Standard Institution. BS 8006.Code of Practice for strengthened/reinforced soil and other fills.British Standard Institute London.1995.
[11]Frederickson, A.& Rosen. Foundation on Creep Piles:Design Parameters. Graphical Presentation by Computer of Resultant Force Systems as well as Ana,1985.
[12]杨君英.客运专线CFG桩复合地基沉降特性研究[D].长沙：中南大学,2008.
[13]安少波.高速铁路路基沉降测试与分析[D].长沙：中南大学,2009.
[14]郑建光.桥头过渡段软基处理差异沉降研究[D].长沙：中南地质大学,2010.
[15]秦文权.客运专线复合地基上无砟轨道路基沉降的控制与计算分析研究[D].长沙：中南大学,2010.
[16]秦亚琼.基于实测数据的路基沉降预测方法研究及工程应用[D].长沙：中南大学,2008.
[17]虞先溢.高速铁路路基沉降变形分析和评估实践[D].成都：西南交通大学,2011.
[18]龚晓南.复合地基设计和施工指南[M].北京：人民交通出版社,2003.
[19]付涛.武广客运专线沉降变形观测精度控制[J].北京：铁道标准设计,2009.
[20]王星运,陈善雄,余飞,等.曲线拟合法对路基小变形情形适用性研究[J].武汉：岩土力学,2009.
[21]宋剑,李明领,周全能,等.路基沉降观测期对评估结果的影响及其合理控制[J].北京：铁道标准设计,2010.
[22]王祯.当前客运专线建设中几个问题的探讨[J].北京：铁道标准设计,2009.
[23]靳忠.浅谈无砟轨道铁路路基沉降控制[J].北京：铁道标准设计,2009.
[24]铁建设函[20051754号.客运专线无砟轨道铁路设计指南[M].北京：中国铁道出版社,2006.
[25]TB10621——2009.高速铁路设计规范(试行)[S].北京：中国铁道出版社,2010.
[26]尤昌龙.无砟轨道工后沉降变形观测、评估的集成理念[J].长沙：铁道科学与工程学报,2007.
[27]李明领.客运专线无砟轨道铁路线下结构沉降变形观测与评估技术[J].北京：中国工程科学,2009.
[28]王登浩.武广铁路客运专线沉降观测与预测技术[J].长沙：铁道科学与工程学报.2008.
[29]高英传.铁路路桥过渡段施工技术研究[D].北京：北京交通大学,2005.
[30]白海峰.铁路路桥过渡段加固处理施工技术[J].北京：铁道建筑,2001.
[31]任彦茹、段树金、王翠娟.轨道结构路桥过渡段静力分析[J].石家庄：石家庄铁道学院学报,2006.
[32]李涛、张仪萍,等.软土路基沉降的优性组合预测[J].武汉：岩土力学与工程学报,2005.
[33]陈善雄,王星运,等.铁路客运专线路基沉降预测的新方法[J].武汉：岩土力学,2010.
[34]潘林有,谢新宇.用曲线拟合的方法预测软土地基沉降[J].武汉：岩土力学,2004.
[35]罗建华.客运专线线下工程工后零沉降建设理念探索[J].成都:路基工程,2008.
[36]曾俊铖,张继文.京沪高速铁路CFG桩复合地基沉降预测分析[J].北京：铁道建筑,2009.
[37]郑志胜.高速铁路路桥过渡段沉降控控制施工技术研究[D].长沙：申南大学,2009.
[38]John N. W. M. Geote X tiles. Blaekie. London.1987.
[39]Carlson B. Reinforced soil, principles for calculation. Linkoping University. Terratema AB. Linoping. Sweden.1987.
[40]Burland. J.B, Borms, B.B.& de Mello V.F.B. Behavior of foundation and structure. Proc.9th Lnt. Conf on soil Mech Tokyo,1977.
[41]张亮.新黄高速公路路基沉降及施工控制技术研究[D].长沙：长沙理工大学,2006.
[42]Hain,S.J.&Lee,I.K. The analysis of flexible pile-raft system [J].Geo technique,28(1).
[43]Cooke, R. W. Pile Raft foundation on stiff clays contribution to design philosophy Geo technique,36(2).
[44]刘志明.客运专线地基沉降计算、预测方法研究[D].成都：西南交通大学,2009.
[45]牛志蓉.地基处理技术及工程应用[M].北京：中国建材工业出版社,2004.
[46]娄国充,卜建清,王叔栋.CFG桩复合地基工程特性分析[M].中南公路工程,2001.
[47]张尚东,娄国充,刘俊彦.CFG桩复合地基特性分析及承载力计算[J].石家庄铁道学院学报,2000.
[48]贾瑞杰.CFG桩复合地基的设计研究与应用[D].长沙：中南大学,2006.
[49]阎明礼,张东刚.CFG桩复合地基技术及工程实践[M].北京：中国水利水电出版社,2001.
[50]任文峰,王星华,韩晓飞.高速铁路软土路基沉降试验研究[J].咸阳：水利与建筑工程学报,2010.
[51]刘杰,张可能.路堤荷载下复合地基变形及荷载传递规律研究[M].北京：铁道学报,2003.
[52]姚建伟.高速铁路CFG桩复合地基沉降计算方法研究[T].武汉：土工基础,2011.
[2]铁建设函[2005]754号.客运专线无砟轨道铁路设计指南[M].北京：铁道部,2005.
[3]铁建设[2007]4号.新建时速300-350公里客运专线铁路设计暂行规定(上、下)[M].北京：铁道部,2007.
[4]陈善雄,宋剑,周全能,等.高速铁路沉降变形观测评估理论与实践[M].北京：中国铁道出版社,2010.
[5]PGiroudetal. Geotextie-reinforced unpaved road design [J]. Journal of Geo. Eng. ASCE,1981.
[6]铁建设[2006]189号.客运专线无砟轨道铁路工程测量暂行规定[M].北京：铁道部,2006.
[7]胡荣光.客运专线路基沉降规律影响因素分析与沉降预测[D].长沙：中南大学,2008.
[8]王星运.铁路客运专线路基沉降预测方法研究[D].北京：中国科学研究院,2009.
[9]Hooper. J.A.,Observations on The Behavior of a Piled Raft Foundation on London Clay. Proc. Int. Civ. Eng.,1973.
[10]British Standard Institution. BS 8006.Code of Practice for strengthened/reinforced soil and other fills.British Standard Institute London.1995.
[11]Frederickson, A.& Rosen. Foundation on Creep Piles:Design Parameters. Graphical Presentation by Computer of Resultant Force Systems as well as Ana,1985.
[12]杨君英.客运专线CFG桩复合地基沉降特性研究[D].长沙：中南大学,2008.
[13]安少波.高速铁路路基沉降测试与分析[D].长沙：中南大学,2009.
[14]郑建光.桥头过渡段软基处理差异沉降研究[D].长沙：中南地质大学,2010.
[15]秦文权.客运专线复合地基上无砟轨道路基沉降的控制与计算分析研究[D].长沙：中南大学,2010.
[16]秦亚琼.基于实测数据的路基沉降预测方法研究及工程应用[D].长沙：中南大学,2008.
[17]虞先溢.高速铁路路基沉降变形分析和评估实践[D].成都：西南交通大学,2011.
[18]龚晓南.复合地基设计和施工指南[M].北京：人民交通出版社,2003.
[19]付涛.武广客运专线沉降变形观测精度控制[J].北京：铁道标准设计,2009.
[20]王星运,陈善雄,余飞,等.曲线拟合法对路基小变形情形适用性研究[J].武汉：岩土力学,2009.
[21]宋剑,李明领,周全能,等.路基沉降观测期对评估结果的影响及其合理控制[J].北京：铁道标准设计,2010.
[22]王祯.当前客运专线建设中几个问题的探讨[J].北京：铁道标准设计,2009.
[23]靳忠.浅谈无砟轨道铁路路基沉降控制[J].北京：铁道标准设计,2009.
[24]铁建设函[20051754号.客运专线无砟轨道铁路设计指南[M].北京：中国铁道出版社,2006.
[25]TB10621——2009.高速铁路设计规范(试行)[S].北京：中国铁道出版社,2010.
[26]尤昌龙.无砟轨道工后沉降变形观测、评估的集成理念[J].长沙：铁道科学与工程学报,2007.
[27]李明领.客运专线无砟轨道铁路线下结构沉降变形观测与评估技术[J].北京：中国工程科学,2009.
[28]王登浩.武广铁路客运专线沉降观测与预测技术[J].长沙：铁道科学与工程学报.2008.
[29]高英传.铁路路桥过渡段施工技术研究[D].北京：北京交通大学,2005.
[30]白海峰.铁路路桥过渡段加固处理施工技术[J].北京：铁道建筑,2001.
[31]任彦茹、段树金、王翠娟.轨道结构路桥过渡段静力分析[J].石家庄：石家庄铁道学院学报,2006.
[32]李涛、张仪萍,等.软土路基沉降的优性组合预测[J].武汉：岩土力学与工程学报,2005.
[33]陈善雄,王星运,等.铁路客运专线路基沉降预测的新方法[J].武汉：岩土力学,2010.
[34]潘林有,谢新宇.用曲线拟合的方法预测软土地基沉降[J].武汉：岩土力学,2004.
[35]罗建华.客运专线线下工程工后零沉降建设理念探索[J].成都:路基工程,2008.
[36]曾俊铖,张继文.京沪高速铁路CFG桩复合地基沉降预测分析[J].北京：铁道建筑,2009.
[37]郑志胜.高速铁路路桥过渡段沉降控控制施工技术研究[D].长沙：申南大学,2009.
[38]John N. W. M. Geote X tiles. Blaekie. London.1987.
[39]Carlson B. Reinforced soil, principles for calculation. Linkoping University. Terratema AB. Linoping. Sweden.1987.
[40]Burland. J.B, Borms, B.B.& de Mello V.F.B. Behavior of foundation and structure. Proc.9th Lnt. Conf on soil Mech Tokyo,1977.
[41]张亮.新黄高速公路路基沉降及施工控制技术研究[D].长沙：长沙理工大学,2006.
[42]Hain,S.J.&Lee,I.K. The analysis of flexible pile-raft system [J].Geo technique,28(1).
[43]Cooke, R. W. Pile Raft foundation on stiff clays contribution to design philosophy Geo technique,36(2).
[44]刘志明.客运专线地基沉降计算、预测方法研究[D].成都：西南交通大学,2009.
[45]牛志蓉.地基处理技术及工程应用[M].北京：中国建材工业出版社,2004.
[46]娄国充,卜建清,王叔栋.CFG桩复合地基工程特性分析[M].中南公路工程,2001.
[47]张尚东,娄国充,刘俊彦.CFG桩复合地基特性分析及承载力计算[J].石家庄铁道学院学报,2000.
[48]贾瑞杰.CFG桩复合地基的设计研究与应用[D].长沙：中南大学,2006.
[49]阎明礼,张东刚.CFG桩复合地基技术及工程实践[M].北京：中国水利水电出版社,2001.
[50]任文峰,王星华,韩晓飞.高速铁路软土路基沉降试验研究[J].咸阳：水利与建筑工程学报,2010.
[51]刘杰,张可能.路堤荷载下复合地基变形及荷载传递规律研究[M].北京：铁道学报,2003.
[52]姚建伟.高速铁路CFG桩复合地基沉降计算方法研究[T].武汉：土工基础,2011.