|本期目录/Table of Contents|

[1]赵均海,殷 佳,张常光,等.降雨条件下非饱和朗肯土压力统一解[J].建筑科学与工程学报,2016,33(02):1-6.
　ZHAO Jun-hai,YIN Jia,ZHANG Chang-guang,et al.Unified Solution of Rankine’s Earth Pressure of Unsaturated Soil Under Rainfall[J].Journal of Architecture and Civil Engineering,2016,33(02):1-6.
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降雨条件下非饱和朗肯土压力统一解(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
33卷
期数:
2016年02期
页码:
1-6
栏目:
出版日期:
2016-03-30

文章信息/Info

Title:
Unified Solution of Rankine’s Earth Pressure of Unsaturated Soil Under Rainfall
作者:
赵均海，殷 佳，张常光，杜文超
长安大学建筑工程学院
Author(s):
ZHAO Jun-hai, YIN Jia, ZHANG Chang-guang, DU Wen-chao
School of Civil Engineering, Chang’an University
关键词:
非饱和土; 降雨入渗; 统一强度理论; 基质吸力; 土压力
Keywords:
unsaturated soil;  rainfall infiltration;  unified strength theory;  matric suction;  earth pressure
分类号:
-
DOI:
-
文献标志码:
A
摘要:
基于统一强度理论和Bishop有效应力原理，结合降雨入渗解析解，推导了考虑中间主应力效应及材料拉压比影响的降雨条件下非饱和朗肯土压力的统一解。通过算例验证了推导公式的有效性，并探讨了降雨条件下基质吸力的变化对非饱和土压力的影响。结果表明：主动土压力随着统一强度理论参数的增大而减小，而被动土压力呈现相反趋势；随着降雨的发生、浸润和停止，主动土压力和被动土压力呈现不稳定变化，最终都趋于稳定，这是由基质吸力的变化所引起的；非饱和渗透特征参数的选取会对土压力的计算产生显著影响。
Abstract:
Based on the unified strength theory and the principle of effective stress of Bishop, combining with rainfall infiltration analytic solution, the unified solution of Rankine’s earth pressure formula of unsaturated soil under rainfall condition was established with taking the effect of the intermediate principal stress and material tension-pressure ratio into account. The availability was verified by an example, and the influence of matric suction during rainfall was discussed. The results indicate that with the increase of the unified strength theory parameters, the active earth pressure decreases, whereas the passive earth pressure shows the opposite trend. In the wake of the occurrence, infiltration and end of rainfall, the earth pressure presents a tendency of unstable variation but finally stabilizes, which is caused by the change of matric suction during rainfall. The parameter of soil permeability character will significantly influence the earth pressure.

参考文献/References:

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相似文献/References:

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　ZHANG Chang-guang,ZHAO Jun-hai,ZHU Qian.Classification and Summary of Shear Strength Formulae for Unsaturated Soils[J].Journal of Architecture and Civil Engineering,2012,29(02):74.
[2]韩佳明,苏三庆.降雨入渗下渭北地坑黄土窑洞稳定性分析[J].建筑科学与工程学报,2012,29(03):104.
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[3]张常光,吴 凯,李宗辉,等.考虑中间主应力的非饱和土上埋式涵洞竖向土压力公式[J].建筑科学与工程学报,2021,38(06):177.[doi:10.19815/j.jace.2021.04092]
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备注/Memo

备注/Memo:
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更新日期/Last Update: 2016-03-30