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砂袋挡土墙土压力和变形特性的试验研究 被引量:4
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作者 肖玉强 李伟 +1 位作者 耿莹莹 李福栋 《水利与建筑工程学报》 2019年第4期176-181,共6页
以重力式砂袋挡土墙为研究背景,为了探讨挡土墙宽度与墙背坡比对挡土墙的影响,采用墙体在不同宽度,不同墙背坡比条件下的室内模型试验方法,对墙背及墙内土压力分布规律和墙面水平位移分布规律进行研究。试验结果表明,土压力大值在距离... 以重力式砂袋挡土墙为研究背景,为了探讨挡土墙宽度与墙背坡比对挡土墙的影响,采用墙体在不同宽度,不同墙背坡比条件下的室内模型试验方法,对墙背及墙内土压力分布规律和墙面水平位移分布规律进行研究。试验结果表明,土压力大值在距离墙底约1/3处,最小值在距离墙底约3/4处,距离墙背越远,土压力越小;墙中和墙边最大水平位移出现在距离墙底约2/5墙高位置处,水平位移随墙宽度和墙背坡比的增加逐渐减小,因此增加挡土墙宽度和墙背坡比,可以提高其整体稳定性。 展开更多
关键词 砂袋挡 压力 墙内土压力 水平位移
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Comparative study of different theories on active earth pressure 被引量:1
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作者 S.P.Yap F.A.Salman S.M.Shirazi 《Journal of Central South University》 SCIE EI CAS 2012年第10期2933-2939,共7页
Determination of distribution and magnitude of active earth pressure is crucial in retaining wall designs. A number of analytical theories on active earth pressure were presented. Yet, there are limited studies on com... Determination of distribution and magnitude of active earth pressure is crucial in retaining wall designs. A number of analytical theories on active earth pressure were presented. Yet, there are limited studies on comparison between the theories. In this work, comparison between the theories with finite element analysis is done using the PLAXIS software. The comparative results show that in terms of distribution and magnitude of active earth pressure, RANKINE's theory possesses the highest match to the PLAXIS analysis. Parametric studies were also done to study the responses of active earth pressure distribution to varying parameters Increasing soil friction angle and wall friction causes decrease in active earth pressure. In contrast, active earth pressure increases with increasing soil unit weight and height of wall. RANK/NE's theory has the highest compatibility to finite element analysis among all theories, and utilization of this theory leads to proficient retaining wall design. 展开更多
关键词 active earth pressure retaining wall PLAXIS comparative study RANKINE's theory COULOMB's theory
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