挡土墙地震土压力的拟动力分析

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摘要基于均匀土层剪切梁理论建立了边坡水平地震动力运动方程，得到了边坡坡后土体的水平位移和加速度响应。将水平加速度应用到挡土墙地震土压力拟动力分析中，对坡体刚性假定和加速度沿坡高恒定的不足进行了改进，推导出主动、被动土压力的计算公式。结合实际工程分析了墙后填土面倾角、填土内摩擦角、挡墙与填土界面摩擦角对于总土压力大小的影响，并与传统的拟静力法和拟动力法进行了比较，结果表明：地震土压力随着时间呈一种类似正弦或者余弦状波动；随着墙后填土面倾角增大挡土墙地震总主、被土压力的也呈逐渐上升趋势；随填土内摩擦角、以及挡土墙与填土界面摩擦角的增大挡土墙地震总主动土压力逐渐减小，而被动土压力则随之增大。传统的计算方法由于计算值偏小而不安全。

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	王浩1
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	董建华1
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	王永胜1
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	张媛1
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关键词 ：剪切梁理论, 拟动力分析, 挡土墙, 地震土压力, 地震系数

Abstract：Based on the shear beam theory of homogeneous soil layer, the motion equation is established under the horizontal earthquake, the horizontal displacement and acceleration response of slope is derived. The defects of the slope with rigid assumptions and constant acceleration along the slope hight are improved using the pseudo-dynamic method and the horizontal acceleration obtained, when seismic earth pressure is calculated. Then the formula of active and passive earth pressure is derived. Combined with the actual the project, the influence of the angle of filling behind retaining wall, internal friction angle, retaining wall and filling interface friction angle on the total earth pressure is analyzed and the improved method is compared with the traditional earth pressure methods. The results show that the seismic earth pressure is like a sine or cosine wave with time, the seismic active and passive earth pressure increases with the increase of the angle of filling behind retaining wall, the total seismic active earth pressure decreases with the increase of internal friction angle and filling interface friction angle gradually, while the total passive earth pressure increases. Traditional methods is not safe due to smaller calculated value.

Key words： shear beam theory pseudo- dynamic method remaining wall earth pressure seismic coefficient

收稿日期: 2015-04-21 出版日期: 2016-09-15

引用本文:

王浩1，2，董建华1,2，王永胜1,2，张媛1,2. 挡土墙地震土压力的拟动力分析[J]. 振动与冲击, 2016, 35(18): 128-133.
WANG Hao1，2, DONG Jian-hua1，2,WANG Yong-sheng1，2, ZHANG Yuan1，2. PSEUDO-DYNAMIC ANALYSIS FOR SEISMIC EARTH PRESSURE OF RETAINING WALL. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(18): 128-133.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2016/V35/I18/128

[1] 王洪亮, 宋二祥, 宋福渊. 紧邻既有建筑基坑有限土体主动土压力计算方法[J]. 工程力学, 2014, 31(4):76-81.
    WANG Hong-liang, SONG Er-xiang, SONG Fu-yuan. Calculation of active earth pressure for limited soil between existing building and excavation[J]. Engineering Mechanics, 2014, 31(4):76-81.
[2] 张建民, 宋飞. 考虑填土侧向变形的地震土压力计算方法[J]. 地震工程学报, 2013, 35(1):9-20.
    Song Fei, Zhang Jian-min. Evaluation of seismic earth pressure considering later deformation[J]. China       Journal of Earthquake Engineering, 2013,35(1):9-20.
[3] 宋飞, 张建民, 陈友昆. 地震荷载作用下被动侧向土压力计算方法研究[J].世界地震工程, 2010, 26(s1):335-340.
    Song Fei, Zhang Jian-min,Chen You-kun.Study on calculation methods of earth pressures at the passive side under seismic loads[J].World Earthquake Engineering, 2010,26(s1):335-340.
[4] 文畅平. 多级支挡结构地震主动土压力的极限分析[J].岩土力学,2013,34(11):3025-3212.
    Wen Chang-ping Limit analysis of seismic active earth pressure of multistage retaining structures[J].Rock and Soil Mechanics, 2013,34(11):3025-3212.
[5] 陆新, 胡源, 郑颖人. 关于地震主动土压力计算公式的讨论[J].建筑科学,2013,29（1）：58-61.
    Lu Xin,Hu Yuan,Zhen Ying-ren.Discussion on Calculation Formual of Seismic Active Earth Pressure[J].Building Science,2013,29（1）：58-61.
[6] 刘忠玉, 杨会朋.刚性挡土墙地震主动土压力的非线性分布[J].郑州大学学报(工学版), 2004,25(2):36-38.
    Liu Zhong-yu,Yang Hui-peng.Nonlinear distribution of seismic active earth pressure on rigid retaining walls[J].Journal of Zhengzhou University(Engineering Science),2004,25(2):36-38.
[7] Zeng X. Steedom R S . On the behaviour of quary walls in earthquakes[J].Gotechnique ,1993,43(3):417-431.
[8] CHOUDHURY D, NIMBALKAR S. Seismic Passive Resistance by Pseudo-dynamic Method[J]. Geotechnique, 2005, 55( 9) : 699-702.
[9] 刘礼标, 张永兴. 非均质填土刚性挡土墙的地震土压力分析[J].江苏大学学报,2013,34（3）：351-355.
    Liu Li-biao,Zhang Yong-xing.Analysis of seismic earth pressure for rigid retaining wall with inhomogeneous backfilled soil[J]. Journal of JiangSu University, 2013, 34(3):351-355.
[10] 阮晓波, 孙树林. 基于拟动力方法的地震条件下挡土墙主动土压力研究[J].公路交通科技,2012,29(8)：26-30.
    Ruan Xiao-bo,Sun Shu-lin.Analysis of seismic active earth pressure on retaining wall based on pseudo-dynamic method[J].Journal of Highway and Transportation Research and Development.2012,29（8）：26-30.
[11] 杨剑. 挡土墙地震被动土压力的拟动力分析[J].防震减灾工程学报,2012,32(6):365-371.
    Yang Jian. Study on passive earth pressure of vertical retaining walls by pseudo-dynamic analysis[J]. Journal of Disaster Prevention and Mitigation Engineering,2012,32(6):365-371.
[12] 王志凯, 夏唐代. 刚想挡土墙地震主动土压力的拟动力分析[J]. 浙江大学学报,2012,46(1):46-50.
    Wang Zhi-kai,Xia Tang-dai.Pseudo-dynamic analysis for seismic active earth pressure behind rigid retaining wall[J].Journal of Zhejiang University, 2012,46(1):46-50.
[13] 杨长卫, 张建经, 付晓, 等. SV 波作用下刚性挡土墙地震主动土压力时频域计算方法[J]. 岩石力学与工程学报, 2014, 33(3): 615-622.
Time-frequency computational method of seismic active earth pressure of rigid retaining wall subjected to SV wave[J]. Chinese Journal of Rock Mechanics and Engineering，2014, 33(3): 615-622.
[14] 董建华, 朱彦鹏. 土钉边坡支护结构动力计算方法研[J].振动与冲击, 2011,30（2）：218-221.
Dong Jian-hua,Zhu Yan-peng.Dynamic calculation method for soilnailing supporting structure[J]. Journal of vibration and shock,2011,30（2）：218-221.
[15] 顾慰慈. 挡土墙土压力计算[M]. 北京：中国建材工业出版社, 2001.
GU Weici. Calculation of Ear th Pressur e on Retaining Walls[M] . Beijing: China Building Mater ial Industry Publishing House, 2001.