软土地基新建宽路堤典型案例及其判识方法评析
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摘要
在整理公路、铁路、地铁、机场工程等行业国内外软土地基新建宽路堤工程典型案例,调研了这些工程通过现场观测、离心模型试验等获得的沉降特性,评析了既有的软土地基新建宽路堤判识方法、指标、标准等基础上,通过算例,横向比较了这些判识方法、指标、标准各自的特点。
Typical cases of newly-built wide embankment engineering structures over soft soils of different areas, such as highways, railways, subways, and airports, were summarized for both local and global scenarios. These projects were investigated in-situ or using centrifugal model tests to obtain settlement patterns. The current discriminant method, index, and standard were evaluated, and their features were compared in parallel with a calculated examples.
Typical cases of newly-built wide embankment engineering structures over soft soils of different areas, such as highways, railways, subways, and airports, were summarized for both local and global scenarios. These projects were investigated in-situ or using centrifugal model tests to obtain settlement patterns. The current discriminant method, index, and standard were evaluated, and their features were compared in parallel with a calculated examples.
引文
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[12]YADU L,TRIPATHI R K.Effect of the length of geogrid layers in the bearing capacity ratio of geogrid reinforced granular fill-soft subgrade soil system[J].Procedia-Social and Behavioral Sciences2013,104(3):225-234.
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[16]杜燕.超宽路堤附加应力分析及软土加固措施[D].成都:西南交通大学,2008.
[17]何俊.填石高填方超宽土基的沉降变形特性及计算研究[D].长沙:长沙理工大学,2014
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[2]栾光日,王连俊,李懿.高速铁路站场宽路堤复合地基沉降特性分析[J].铁道学报,2014,36(10):95-101.
[3]申益民.广州地铁车辆段超宽路堤软土地基设计[J].路基工程,1992(2):16-19.
[4]甘善杰.超宽路堤软土地基沉降研究[J].路基工程,2006(3):16-19.
[5]陈建峰,石振明.宽路堤和地基土共同作用分析[J].公路交通科技,2006,23(2):6-9.
[6]ZHANG Limin.Settlement patterns of soft soil foundations under embankments[J].Can.Geotech J.,1999,36:774-781.
[7]中华人民共和国交通部.公路工程技术标准(JTGB01-2014)[S].
[8]中华人民共和国交通部.公路路基设计规范(JTGD30-2015)[S].
[9]Dob Hanane,Messast Salah,Boulon Marc,Flavigny Etienne.Treatment of the high number of cycles as a pseudo-cyclic creep by analogy with the soft soil creep model[J].Geotechnical and Geological Engineering,2016,34(6):1985-1993.
[10]Sobhanmanesh A,Nazir R B,Gofar N.3Dnumerical analysis of centrifuge tests on embankments on soft and stiff ground[J].Advanced Materials Research,2014,831(1):314-320.
[11]DEMIR A,SARICI T.Bearing capacity of footing supported by geogrid encased stone columns on soft soil[J].Geomechanics Engineering,2017,12(3):417-439.
[12]YADU L,TRIPATHI R K.Effect of the length of geogrid layers in the bearing capacity ratio of geogrid reinforced granular fill-soft subgrade soil system[J].Procedia-Social and Behavioral Sciences2013,104(3):225-234.
[13]El KAMASH W,HAN J.Displacements of column-supported embankments over soft clay after widening considering soil consolidation and column layout:numerical analysis[J].Soils and Foundations,2014,54(6):1054-1069.
[14]蒋怡.软土地基高速公路拓宽路基变形特性及塑料排水板与粉喷桩处治对比[D].成都:西南交通大学,2015.
[15]蒋鑫,邱延峻,周成.路堤荷载作用下软基沉降特性研究[J].水文地质工程地质,2006(1):111-114.
[16]杜燕.超宽路堤附加应力分析及软土加固措施[D].成都:西南交通大学,2008.
[17]何俊.填石高填方超宽土基的沉降变形特性及计算研究[D].长沙:长沙理工大学,2014
[18]毛成,邱延峻.超宽路堤软土地基加固的固结沉降数值分析[J].东北公路,2002,25(3):31-33.