Distribution of Active Earth Pressure of Retaining Wall With Wall Movement of Rotation About Top
-
摘要: 根据库仑土压力理论的假设，挡土墙上的土压力是由墙后填土在极限平衡状态下出现的滑动楔体产生，给出了墙体绕墙顶转动变位模式下土压力强度、土压力合力和土压力合力作用点的理论公式，并与库仑土压力理论、墙体平动变位模式下土压力和有关实验结果进行了比较．结果表明，墙体绕墙顶转动变位模式下土压力合力与墙体平动变位模式下土压力合力相等，且等于库仑理论计算结果，但土压力合力作用点和土压力分布有显著差别．Abstract: Based on the Coulomb's theory that the earth pressure against the back of a retaining wall is due to the thrust exerted by the sliding wedge of soil from the back of the wall to a plane which passes through the bottom edge of the wall and has an inclination equal to the angle of H,the theoretical answers to the unit earth pressure,the resultant earth pressure and the point of application of the resultant earth pressure on a retaining wall were obtained for the wall movement mode of rotation about top.The comparisons were made among the formula presented here,the formula for the wall movement mode of translation,the Coulomb's formula and some experimental observations.It is demonstrated that the magnitudes of the resultant earth pressures for the wall movement mode of rotation about top is equal to that determined by the formula for the wall movement mode of translation and the Coulomb's theory.But the distribution of the earth pressure and the points of application of the resultant earth pressures have significant difference.
-
Key words:
- retaining wall /
- rotation about top /
- active earth pressure /
- distribution /
- point of application
-
[1] Liu Cheng,Evett Jack B.Soil and Foundations[M].New Jersey: Prentice-Hall, Inc,1998. [2] Rankine W J M.On the stability of loose earth[J].Phil Trans Roy Soc,Lond,1857,147(1):9—27. doi: 10.1098/rstl.1857.0003 [3] 陈万佳.散粒体结构力学[M]. 北京：人民交通出版社，1983. [4] Fang Y S,Ishibashi I.Static earth pressures with various wall movements[J].Journal of Geotechnical Engineering, ASCE,1986,112(3):317—333. doi: 10.1061/(ASCE)0733-9410(1986)112:3(317) [5] Tsinker G P.Handbook of Port and Harbor Engineering-Geotechnical and Structural Aspects[M].New York:Chapman & Hall, I (T) P International Thomson Publishing, 1997. [6] WANG Yuan-zhan.Distribution of earth pressure on a retaining wall[J].Geotechnique,2000,50(1):83—88. doi: 10.1680/geot.2000.50.1.83 [7] 王元战,李蔚,黄长虹.墙体绕基础转动情况下挡土墙主动土压力分布[J].岩土工程学报,2003,25(2):208—211. [8] 天津大学.土力学与地基[M].北京:人民交通出版社，1980. -
点击查看大图
计量
- 文章访问数: 2239
- HTML全文浏览量: 129
- PDF下载量: 602
- 被引次数: 0
下载:
