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考虑土拱效应的粘性填土平行挡土墙侧向土压力计算方法

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Keywords: 道路工程,侧向土压力,力学单元平衡方程,平行挡土墙,摩尔-库伦强度理论,土拱效应

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Abstract:

?考虑土拱效应的影响,采用圆弧形拱作为小主应力轨迹,以粘性填土平行挡土墙为研究对象进行了研究。充分考虑墙土摩擦角、填土内摩擦角、填土粘聚力、竖向均布荷载、平行挡土墙间的水平距离等多种影响因素,运用力学单元平衡方程和摩尔-库伦强度理论推导了平行挡土墙侧向土压力系数和侧向土压力计算公式。最后通过算例分析得出墙土摩擦角部分发挥和充分发挥,以及平行挡土墙间水平距离对墙侧向土压力的影响变化规律。结果表明:考虑土拱效应的侧向土压力系数和侧向土压力沿深度为非线性分布,并且其与墙土摩擦角、填土内摩擦角、填土粘聚力、竖向均布荷载、平行挡土墙间的水平距离有关;不考虑土拱效应的常规方法计算得到的土压力偏不安全。

References

[1]  TERZAGHI K.Theoretical Soil Mechanics[M].New York:Wiley, 1943.
[2]  HANDY R L. The Arch in Soil Arching[J].Journal of Geotechnical Engineering, 1985, 111(3):302-318.
[3]  PAIK K H, SALGADO R.Estimation of Active Earth Pressure Against Rigid Retaining Walls Considering Arching Effect[J].Geotechnique, 2003, 53(7):643-653.
[4]  吴子树, 张利民, 胡 定.土拱的形成机理及存在条件的探讨[J].成都科技大学学报, 1995(2):15-19. WU Zi-shu, ZHANG Li-min, HU Ding.Studies on the Mechanism of Arching Action in Loess[J].Journal of Chengdu University of Science and Technology, 1995(2):15-19.
[5]  蒋 波, 应宏伟, 谢康和, 等.平动模式下挡土墙非极限状态主动土压力计算[J].中国公路学报, 2005, 18(2):24-27. JIANG Bo, YING Hong-wei, XIE Kang-he, et al.Computation of Active Earth Pressure Under Non-limit State for Retaining Wall with Mode of Translation[J].China Journal of Highway and Transport, 2005, 18(2):24-27.
[6]  章瑞文, 徐日庆.平移模式下挡土墙墙背土侧压力系数的计算[J].中国公路学报, 2007, 20(1):14-18. ZHANG Rui-wen, XU Ri-qing.Computation of Coefficient of Lateral Earth Pressure on Retaining Wall Surface with Mode of Translation[J].China Journal of Highway and Transport, 2007, 20(1):14-18.
[7]  NADUKURU S S, MICHALOWSKI R L.Arching in Distribution of Active Load on Retaining Walls[J].Journal of Geotechnical and Geoenvironmental Engineering, 2012, 138(5):575-584.
[8]  SINGH S, SIVAKUGAN N, SHUKLA S.Can Soil Arching Be Insensitive to Φ?[J].International Journal of Geomechanics, 2010, 10(3):124-128.
[9]  ROY A, PATRA N.Effect of Arching on Passive Earth Pressure for Rigid Retaining Walls Considering Translation Mode[C]//ASCE.Structures Congress.Washington DC:ASCE, 2009:1-10.
[10]  GOEL S, PATRA N.Effect of Arching on Active Earth Pressure for Rigid Retaining Walls Considering Translation Mode[J].International Journal of Geomechanics, 2008, 8(2):123-133.
[11]  蒋 波, 应宏伟, 谢康和.挡土墙后土体拱效应分析[J].浙江大学学报:工学版, 2005, 39(1):132-137. JIANG Bo, YING Hong-wei, XIE Kang-he.Analysis on Soil Arching Behind Retaining Wall[J].Journal of Zhejiang University:Engineering Science, 2005, 39(1):132-137.
[12]  应宏伟, 蒋 波, 谢康和.平行竖墙间的土拱效应与侧向土压力计算[J].水利学报, 2006, 37(11):1303-1308. YING Hong-wei, JIANG Bo, XIE Kang-he.Soil Arching and Estimation of Earth Pressure on Two Parallel Vertical Walls[J].Journal of Hydraulic Engineering, 2006, 37(11):1303-1308.
[13]  应宏伟, 蒋 波, 谢康和.考虑土拱效应的挡土墙主动土压力分布[J].岩土工程学报, 2007, 29(5):717-722. YING Hong-wei, JIANG Bo, XIE Kang-he.Distribution of Active Earth Pressure Against Retaining Walls Considering Arching Effects[J].Chinese Journal of Geotechnical Engineering, 2007, 29(5):717-722.
[14]  吴 明, 彭建兵, 徐 平, 等.考虑土拱效应的挡墙后土压力研究[J].工程力学, 2011, 28(11):89-95. WU Ming, PENG Jian-bing, XU Ping, et al.Study on Earth Pressure Against Rigid Retaining Walls Considering Soil Arching Effects[J].Engineering Mechanics, 2011, 28(11):89-95.
[15]  涂兵雄, 贾金青.考虑土拱效应的粘性填土挡土墙主动土压力研究[J].岩石力学与工程学报, 2012, 31(5):1064-1070. TU Bing-xiong, JIA Jin-qing.Research on Active Earth Pressure Behind Rigid Retaining Wall from Clayey Backfill Considering Soil arching Effects[J].Chinese Journal of Rock Mechanics and Engineering, 2012, 31(5):1064-1070.
[16]  RICHARDS JR R, SHI X.Seismic Lateral Pressures in Soils with Cohesion[J].Journal of Geotechnical Engineering, 1994, 120(7):1230-1251.

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