截面型式对土工格室挡墙稳定性影响研究
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摘要
实际工程中采用传统的等截面挡墙截面型式,不仅消耗材料大、工程造价高,而且会限制土工格室结构优势的发挥。因此提出新型变截面挡墙结构型式,对传统挡墙的断面型式进行优化,从而减少土工格室的用量,节约工程造价,使得此种新型支挡结构有着更广阔的应用前景。文中利用有限元软件ABAQUS以及边坡稳定分析软件Zslope对土工格室挡墙的不同截面型式进行数值模拟,比较分析了不同工况下的安全系数及滑动面,提出了既能保证安全系数,又能节省材料的新型断面型式。
The traditional cross-sectional type of retaining wall used in practical projects not only consumes massive materials with high cost,but also restricts the exertion of the structural superiority of the geocell.Therefore,a new type of variable-section retaining wall structure is proposed to optimize the cross-sectional form of the traditional retaining wall,thus reducing the amount of the geocell and saving the project cost,causing the new retaining structure a wider application prospect.In this paper,by means of the finite element software ABAQUS and the slope stability analysis software Zslope,the different cross-sectional types of the retaining wall are numerically simulated,the safety factor and sliding surface under different working conditions are compared and analyzed,and a new type of sectional type is proposed,which can both assure safety factor and save material.
The traditional cross-sectional type of retaining wall used in practical projects not only consumes massive materials with high cost,but also restricts the exertion of the structural superiority of the geocell.Therefore,a new type of variable-section retaining wall structure is proposed to optimize the cross-sectional form of the traditional retaining wall,thus reducing the amount of the geocell and saving the project cost,causing the new retaining structure a wider application prospect.In this paper,by means of the finite element software ABAQUS and the slope stability analysis software Zslope,the different cross-sectional types of the retaining wall are numerically simulated,the safety factor and sliding surface under different working conditions are compared and analyzed,and a new type of sectional type is proposed,which can both assure safety factor and save material.
引文
[1]吕东旭.土工格室生态挡墙工程性状研究[D].长安大学,2003.
[2]张彩双,李俊杰,胡军.有限元强度折减法的边坡稳定分析[J].中国农村水利水电,2006,(5):72-74.
[3]宋雅坤,郑颖人,赵尚毅.有限元强度折减法在三维边坡中的应用研究[J].地下空间与工程学报,2006,(5):822-827.
[4]Song F,Wang K,Xie Y L,et al.Centrifuge model study on the failure process of reinforced retaining wall with lengthening geocell layers[J].International Journal of Earth Sciences and Engineering,2014,7(5):1918-1924.
[5]李永亮.土工格室挡墙优化断面型式及其在延安机场迁建工程中的应用[D].长安大学,2016.
[6]柴海博,陈浩,李建举,等.二级土工格室柔性挡墙优化断面型式研究[J].公路,2017,(6):28-33.
[7]张鲁渝.边坡稳定分析软件ZSlope的开发[J].岩石力学与工程学报,2004,(16):2830-2835.
[8]张鲁渝.一个用于边坡稳定分析的通用条分法[J].岩石力学与工程学报,2005,(3):496-501.
[9]张鲁渝,张建民.基于滑面段旋转的Monte Carlo搜索技术及改进(Ⅱ):常值转角[J].岩土力学,2006,(12):2197-2202.
[10]Song F,Li Y L,Zhang K,et al.Study on the optimum sectional form of geocell reinforcedretaining wall[J].International Journal of Earth Sciences and Engineering,2014,7(2):571-577.
[2]张彩双,李俊杰,胡军.有限元强度折减法的边坡稳定分析[J].中国农村水利水电,2006,(5):72-74.
[3]宋雅坤,郑颖人,赵尚毅.有限元强度折减法在三维边坡中的应用研究[J].地下空间与工程学报,2006,(5):822-827.
[4]Song F,Wang K,Xie Y L,et al.Centrifuge model study on the failure process of reinforced retaining wall with lengthening geocell layers[J].International Journal of Earth Sciences and Engineering,2014,7(5):1918-1924.
[5]李永亮.土工格室挡墙优化断面型式及其在延安机场迁建工程中的应用[D].长安大学,2016.
[6]柴海博,陈浩,李建举,等.二级土工格室柔性挡墙优化断面型式研究[J].公路,2017,(6):28-33.
[7]张鲁渝.边坡稳定分析软件ZSlope的开发[J].岩石力学与工程学报,2004,(16):2830-2835.
[8]张鲁渝.一个用于边坡稳定分析的通用条分法[J].岩石力学与工程学报,2005,(3):496-501.
[9]张鲁渝,张建民.基于滑面段旋转的Monte Carlo搜索技术及改进(Ⅱ):常值转角[J].岩土力学,2006,(12):2197-2202.
[10]Song F,Li Y L,Zhang K,et al.Study on the optimum sectional form of geocell reinforcedretaining wall[J].International Journal of Earth Sciences and Engineering,2014,7(2):571-577.