铁路路基加宽对既有线沉降影响研究
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摘要
沉降控制是铁路路基施工的关键技术。本文以某铁路路基加宽工程为依托,通过对铁路路基沉降数据分析,得出路基加宽后对既有线变形影响较大;进一步对路基加宽中新老路基的沉降问题进行有限元分析,探讨加宽路基对既有线沉降影响程度,得出加宽路基对既有线沉降影响的数值,所得结论可为类似工程的设计、施工提供参考。
Subside control is the key technology of railway subgrade construction. This article relies on a railway subgrade widening project,through the analysis of the subside data of the railway subgrade,it is concluded that the widened roadbed has a greater impact on the deformation of the existing line;finite element analysis on the settlement problem of new and old roadbed in roadbed widening is further studied,exploring the degree of influence of widened roadbed on the subside of the existing line,and obtaining the effect of widening the roadbed on the value of subside of the existing line,the conclusion can provide reference for the design and construction of similar projects.
Subside control is the key technology of railway subgrade construction. This article relies on a railway subgrade widening project,through the analysis of the subside data of the railway subgrade,it is concluded that the widened roadbed has a greater impact on the deformation of the existing line;finite element analysis on the settlement problem of new and old roadbed in roadbed widening is further studied,exploring the degree of influence of widened roadbed on the subside of the existing line,and obtaining the effect of widening the roadbed on the value of subside of the existing line,the conclusion can provide reference for the design and construction of similar projects.
引文
[1]于洪涛.平原地区高速铁路路基帮宽工程附加沉降研究[J].国防交通工程与技术,2016,14(S1):44-45+52.
[2]胡润乾.某高速铁路路基帮宽段沉降控制方案研究[J].铁道标准设计,2017,61(5):58-61.
[3]徐红艳.既有铁路高路基帮宽填筑施工质量控制关键技术[J].价值工程,2015,34(20):91-93.
[4]张帆.既有线高速铁路路基加宽施工技术研究[J].高速铁路技术,2016,7(1):91-95.
[5]郭建湖.武广客运专线无碴轨道路基变形监控方案及工后沉降评估方法的探讨[A].铁道部工程设计鉴定中心、中国铁道学会.铁路客运专线建设技术交流会论文集[C].铁道部工程设计鉴定中心、中国铁道学会,2005:5.
[6]马睿馨,杨启,仇敏达,等.沿海软土机场本构模型及重力动力响应[J].科技风,2017(10):118.
[7]陈征,王旭东,曾婕.变孔压边界地基土一维非线性固结解答[J].南京工业大学学报(自然科学版),2014,36(5):90-94.
[8]丰伟,董喜燕,伍金理,等.加宽路基沉降有限元分析[J].中国水运(下半月),2014,14(3):298-299.
[9]任少博.水热变化对冻土路基变形稳定性的影响研究[D].长安大学,2013.
[10]胡志文.高速公路拓宽工程路基差异沉降分析与控制技术研究[D].重庆交通大学,2017.
[2]胡润乾.某高速铁路路基帮宽段沉降控制方案研究[J].铁道标准设计,2017,61(5):58-61.
[3]徐红艳.既有铁路高路基帮宽填筑施工质量控制关键技术[J].价值工程,2015,34(20):91-93.
[4]张帆.既有线高速铁路路基加宽施工技术研究[J].高速铁路技术,2016,7(1):91-95.
[5]郭建湖.武广客运专线无碴轨道路基变形监控方案及工后沉降评估方法的探讨[A].铁道部工程设计鉴定中心、中国铁道学会.铁路客运专线建设技术交流会论文集[C].铁道部工程设计鉴定中心、中国铁道学会,2005:5.
[6]马睿馨,杨启,仇敏达,等.沿海软土机场本构模型及重力动力响应[J].科技风,2017(10):118.
[7]陈征,王旭东,曾婕.变孔压边界地基土一维非线性固结解答[J].南京工业大学学报(自然科学版),2014,36(5):90-94.
[8]丰伟,董喜燕,伍金理,等.加宽路基沉降有限元分析[J].中国水运(下半月),2014,14(3):298-299.
[9]任少博.水热变化对冻土路基变形稳定性的影响研究[D].长安大学,2013.
[10]胡志文.高速公路拓宽工程路基差异沉降分析与控制技术研究[D].重庆交通大学,2017.