| 土工袋挡土墙模型试验及临界高度上限解 |
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| 引用本文： | 张呈斌,王建磊,樊科伟,陈爽,来志强,宋迎俊.土工袋挡土墙模型试验及临界高度上限解[J].中国农村水利水电,2021(3). |
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| 作者姓名： | 张呈斌 王建磊 樊科伟 陈爽 来志强 宋迎俊 |
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| 作者单位： | 河海大学水利水电学院;中国电建集团中南勘测设计研究院有限公司;黄河水利委员会黄河水利科学研究院水利部黄河泥沙重点实验室;南京水利科学研究院材料结构研究所 |
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| 基金项目： | 国家重点研发计划(2017YFE0128900);国家自然科学基金青年科学基金项目(51909102);第四届中国科协青年人才托举工程全额资助项目(水学合同201938);南京水利科学研究院中央级公益性科研院所基本科研业务费专项(Y419011)。 |
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| 摘 要： | 开展模型试验观测了土工袋挡土墙破坏模式以及墙后填土滑裂面形式,以此为依据构建了土工袋挡土墙速度场,利用极限分析上限法求解了土工袋挡土墙滑裂面倾角,然后利用计算得到的滑裂面倾角进一步计算了土工袋挡土墙临界高度和墙后土压力,并通过模型试验结果对计算结果进行了验证,发现计算得到的挡土墙临界高度和墙后土压力与试验结果基本吻合,表明极限分析上限法计算出的结果的可信。
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| 关 键 词： | 土工袋 挡土墙 模型试验 上限解 |
Model Tests of a Retaining Wall Constructed with Soilbags and Upper-bound Solution of Critical Height |
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| ZHANG Cheng-bin,WANG Jian-lei,FAN Ke-wei,CHEN Shuang,LAI Zhi-qiang,SONG Ying-jun.Model Tests of a Retaining Wall Constructed with Soilbags and Upper-bound Solution of Critical Height[J].China Rural Water and Hydropower,2021(3). |
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| Authors: | ZHANG Cheng-bin WANG Jian-lei FAN Ke-wei CHEN Shuang LAI Zhi-qiang SONG Ying-jun |
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| Institution: | (College of Water Conservancy and Hydropower Engineering,Hohai University,Nanjing 210098,China;PowerChina Zhongnan Engineering Corporation Limited,Changsha 410014,China;Key laboratory of Yellow River Sediment Research,Yellow River Institute of Hydraulic Research,Zhengzhou 450003,China;Materials and Structural Engineering Department,Nanjing Hydraulic Research Institute,Nanjing 210029,China) |
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| Abstract: | Model tests are conducted to obtain the failure mode of the retaining wall with soilbags and the slip surface of the backfilled soil.Based on this,a velocity field is established.The angle of the slip surface is then solved using limit analysis upper bound method.Afterwards the slip angle is used to calculate the critical height of the wall and the earth pressure acting on the wall.The calculation results are verified by model test results,and it is found that the calculated critical height of retaining wall and the earth pressure behind the wall are basically consistent with the test results,which show that the calculated results using limit analysis upper bound method are reliable. |
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| Keywords: | soilbags retaining wall model test upper-bound solution |
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