高填方吹填路基施工过程数值模拟研究
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摘要
通过Plaxis软件建立平面应变模型,利用有限元变形的方法计算路基沉降,并对路基水平位移及方向进行分析,评价路基边坡的稳定性。计算结果表明,路基的最终沉降量在1. 2 m～1. 5 m范围内,水平位移极值在0. 28 m～0. 5 m范围内,路基边坡是稳定的。
Plane strain model by means of Plaxis software is build up. The settlement of roadbed is calculated by finite element method. The location of the settlement is determined in this paper. And the magnitude and direction of the displacement of the roadbed are analyzed. The stability of the slope is evaluation this paper. The calculated results show that the ultimate settlement of the roadbed is in the range of 1. 2 m to 1. 5 m,and the horizontal displacement is at 0. 28 m ～ 0. 5 m,so the slope of the roadbed is stable.
Plane strain model by means of Plaxis software is build up. The settlement of roadbed is calculated by finite element method. The location of the settlement is determined in this paper. And the magnitude and direction of the displacement of the roadbed are analyzed. The stability of the slope is evaluation this paper. The calculated results show that the ultimate settlement of the roadbed is in the range of 1. 2 m to 1. 5 m,and the horizontal displacement is at 0. 28 m ～ 0. 5 m,so the slope of the roadbed is stable.
引文
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[4] Wahls HE. Analysis of Primary and secondary consolidation[J]. Proe. ASCE,1962,90(SM6):207-231.
[5] Sandhu,R S,E&E L Wilson. Finite element analysis of seepage in elastic media,Joumal of Engineering mechanizes Division[J]. ASCE,1969(95):641-652.
[6] Biot M A. General theory of three-dimensional consolidation[J]. J of Applied Physies,1941(12):155-158.
[7]徐建军.半填半挖路基施工过程数值模拟研究[D].长沙:长沙理工大学,2007.
[8]费超.路基土变形机理试验及数值模拟研究[D].大连:大连海事大学,2014.
[9]陆长兵,骆俊伟,高昌泉,等.临江软土地基堤路结合工程合理拼接台阶尺寸研究[J].公路工程,2012,37(5):115-119.
[10]刘光臣,俞鸣陵,卫乾.临水高吹填路基结合路基长期变形及控制研究[J].公路交通科技,2013(11):33-40.
[2]陈昕.高填方路基沉降机理及防治措施[J].交通工程,2017(2):158-159.
[3] M Menan Hasnayn,W John McCarter,Peter K. Woodward,et al. Railway subgrade performance during flooding and the postflooding(recovery)period[J]. Transportation Geotechnics,2017,11(6):57-68.
[4] Wahls HE. Analysis of Primary and secondary consolidation[J]. Proe. ASCE,1962,90(SM6):207-231.
[5] Sandhu,R S,E&E L Wilson. Finite element analysis of seepage in elastic media,Joumal of Engineering mechanizes Division[J]. ASCE,1969(95):641-652.
[6] Biot M A. General theory of three-dimensional consolidation[J]. J of Applied Physies,1941(12):155-158.
[7]徐建军.半填半挖路基施工过程数值模拟研究[D].长沙:长沙理工大学,2007.
[8]费超.路基土变形机理试验及数值模拟研究[D].大连:大连海事大学,2014.
[9]陆长兵,骆俊伟,高昌泉,等.临江软土地基堤路结合工程合理拼接台阶尺寸研究[J].公路工程,2012,37(5):115-119.
[10]刘光臣,俞鸣陵,卫乾.临水高吹填路基结合路基长期变形及控制研究[J].公路交通科技,2013(11):33-40.