| 荷载作用下黏性土坡位移场应变场分析 |
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| 引用本文： | 王伟,王中华,许芝娟,陈蔚.荷载作用下黏性土坡位移场应变场分析[J].岩土力学,2011,32(11):3263-3268. |
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| 作者姓名： | 王伟 王中华 许芝娟 陈蔚 |
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| 作者单位： | 江南大学 环境与土木工程学院,江苏 无锡,214122 |
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| 摘 要： | 通过室内土坡模型试验,研究了在荷载作用下黏性土坡竖向位移随深度的变化规律、土坡大主应变与最大剪应变分布、土坡的蠕变特性及裂缝作用机制。结果表明,随着荷载的逐渐增大,土坡微结构蠕变不断增加,土体的蠕变过程实质上是土体损伤过程,是土坡微结构能量耗散的过程。土坡的蠕变和损伤积累随着加荷时间延续而增大,损伤各向异性更加明显。坡顶和斜坡面处的损伤程度较大,在坡顶和斜坡面出现裂缝,坡顶的竖向位移大于侧向位移,相反坡底处侧向位移大于竖向位移。
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| 关 键 词： | 黏性土坡 模型试验 荷载 位移场及应变场 蠕变 损伤 |
| 收稿时间： | 2010-03-01 |
Analysis of displacement field and strain field of clay soil slopes under loading |
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| WANG Wei,WANG Zhong-hua,XU Zhi-juan,CHEN Wei.Analysis of displacement field and strain field of clay soil slopes under loading[J].Rock and Soil Mechanics,2011,32(11):3263-3268. |
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| Authors: | WANG Wei WANG Zhong-hua XU Zhi-juan CHEN Wei |
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| Institution: | Department of Environment and Civil Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China |
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| Abstract: | Through laboratory model tests,the following discussions are performed based on macrostructure and microstructure: the vertical displacements varying with depth,the distribution of maximum principal strain and maximum shear strain of clay soil slopes,creep properties and crack functionary mechanism of clay soil slopes respectively under loading.The results show that,with the increase in loading,the values of creep increase microstructure of soil slopes.Creep of soil slopes can be considered as the process o... |
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| Keywords: | clay soil slopes model test loading displacement field and strain field creep damage |
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