期刊文献+

挡土墙绕墙底转动下非极限主动土压力的研究 被引量:4

Research of Active Earth Pressure on Retaining Wall with Mode of Rotation about Base under Non-limit State
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摘要 将填土内摩擦角和墙面外摩擦角与墙体绕墙底向外转动角度之间的关系植于改进了的传统水平层分析法中,用于求解挡土墙绕墙底转动模式非极限状态下的主动土压力.取挡土墙后滑动土体的水平薄层单元进行受力分析,建立了非极限状态下土压力强度的一阶微分方程,得到了绕墙底转动变位模式下挡土墙非极限状态主动土压力强度、土压力合力和土压力合力作用点的计算公式,并将计算所得结果与已有模型试验和库仑土压力的计算结果进行比较.表明本文计算方法接近土压力的真实分布,能够综合考虑挡土墙变位模式与位移对土压力的影响. The relation between the internal and external frictional angle and the displacement of retaining wall was incorporated into modified horizontal layer analysis to solve active earth pressure under non-limit state with mode of rotation about base. After the mechanics analyzing of slice element of sliding soil behind the retaining wall, the first order differential equations of active earth pressure under non-limit state were set up, then the strength of the non-limit state active earth pressure for retaining wall with mode of rotation about base, the resultant force of earth pressure and its application point were obtained. Comparing the calculated results with some experimental results and Coulomb earth pressure, it is shown that the presented calculation method is very near to the real distribution of active earth pressure and the influence of movement mode and displacement of wall on earth pressure can be considered.
出处 《宁夏大学学报(自然科学版)》 CAS 北大核心 2007年第4期330-333,共4页 Journal of Ningxia University(Natural Science Edition)
基金 宁夏自然科学基金资助项目(NZ0514) 新世纪优秀人才支持计划资助项目(NCET-05-0895)
关键词 水平层分析法 主动土压力 绕墙底转动模式 非极限状态 horizontal layer analysis active earth pressure rotation about base mode non-limit state
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参考文献10

  • 1顾慰慈.挡土墙土压力计算[M].北京:中国建材工业出版社,2005:235-262. 被引量:4
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二级参考文献26

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