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挡土墙土压力研究的错误倾向

孙建生

孙建生. 挡土墙土压力研究的错误倾向[J]. 岩土工程学报, 2016, 38(7): 1324-1329. DOI: 10.11779/CJGE201607021
引用本文: 孙建生. 挡土墙土压力研究的错误倾向[J]. 岩土工程学报, 2016, 38(7): 1324-1329. DOI: 10.11779/CJGE201607021
shu
SUN Jian-sheng. Error tendency for studying earth pressure on retaining walls[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(7): 1324-1329. DOI: 10.11779/CJGE201607021
Citation: SUN Jian-sheng. Error tendency for studying earth pressure on retaining walls[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(7): 1324-1329. DOI: 10.11779/CJGE201607021
shu

挡土墙土压力研究的错误倾向  English Version

  • 太原理工大学水利科学与工程学院,山西 太原 030024

详细信息
    作者简介:

    孙建生(1958- ),男,副教授,硕士生导师,主要从事水利工程结构及其抗振的教学与研究。E-mail: SJSD1053@163.com。

Error tendency for studying earth pressure on retaining walls

  • Taiyuan University of Technology, Taiyuan 030024, China

摘要

    摘要
  • 摘要: 针对目前挡土墙土压力研究的错误舆论倾向和学术影响普遍问题,以澄清挡土墙土场中土拱及土拱效应基本力学概念为切入点,剖析沿主应力轨迹线建立的侧土压力系数随墙壁摩擦角的变化规律与经典库仑土压力系数规律悖逆,指出两者的差异越大水平土压力分布曲线影响越大,这种差异的存在正是主应力土拱计算法自认为的土拱效应,也正是其最大的谬误所在。根据微分层平衡条件导出的水平土压力分布计算公式数学原理,揭示了只要采用此方法又得出土压力为曲线分布的任何理论,必然是悖逆经典土压力理论且存在前后土压力系数自相矛盾的谬论。
    Abstract: In view of the general problems of error tendency for studying the earth pressure on retaining wall, by clarifying the basic mechanical conceptions of soil arch and soil arching in soils of retaining wall, it is analyzed that the change laws of earth pressure coefficient based on the principal stress trajectory with the frictional angle between wall and backfill are contrary to those of the classical Coulomb’s. The larger the difference between them is, the larger the effect of the horizontal earth pressure distribution. The existence of this difference is just the soil arching considered by the principal stress soil arch method, and it is the largest falsehood. According to the math ematical principle analysis of horizontal earth pressure distribution formula derived by differential stratum, it is expounded that any theoretical method to use the differential stratum to obtain the result that the earth pressure is curve distribution is necessarily false, that is to say they are contrary to the classical theories, and the earth pressure coefficients behind retaining wall are self-contradictory.
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    • 参考文献(17)
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  • 收稿日期:  2015-07-02
  • 发布日期:  2016-07-24

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