| 干密度对黄土强度及其切线模量的影响 |
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| 引用本文： | 俞缙,林从谋,周亦涛.干密度对黄土强度及其切线模量的影响[J].石河子大学学报,2009,27(4):487-489. |
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| 作者姓名： | 俞缙 林从谋 周亦涛 |
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| 作者单位： | 俞缙,林从谋(华侨大学岩土工程研究所,厦门,361021);周亦涛(河北工程技术高等专科学校水利系,沧州,061001) |
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| 基金项目： | 建设部科学技术计划项目，福建省自然科学基金资助项目 |
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| 摘 要： | 针对黄土土样进行了不同干密度条件下的室内静三轴试验研究，并用Duncan—Chang模型分析了实验结果，讨论了黄土的强度及其切线变彤模量与十密度的内在联系。结果表明：在其他条件相同时，黄土的粘聚力、内摩擦角及抗剪强度均随千密度的增大均呈增大趋势，且在干密度较大时表现为略微的应变软化，干密度较小时表现为应变硬化；黄上的切线变形模量随干密度的降低而减小，随应变的增加而减小，当轴向应变达到0．03左右时，切线变形模量几乎减小到零。
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| 关 键 词： | 黄土 抗剪强度 三轴剪切试验 切线模量 Duncan-Chang模型 |
Effects of Dry Density on Loess's Strength and Tangent Modulus of Deformation |
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| YU Jin,LIN Congmou,ZHOU Yitao.Effects of Dry Density on Loess''s Strength and Tangent Modulus of Deformation[J].Journal of Shihezi University(Natural Science),2009,27(4):487-489. |
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| Authors: | YU Jin LIN Congmou ZHOU Yitao |
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| Institution: | 1 Geotechnical Engineering Institute;Huaqiao University;Xiamen 361021;China;2 Department of Hydraulic Engineering;Hebei Engineering and Technical College;Cangzhou 061001;China |
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| Abstract: | The tri-axial shear experiment of loess samples taken from the construction site was carried out,strength and deformation character of loess were studied using Duncan-Chang model and the relationship between those characters and dry density were discussed in this paper.It was shown that the cohesive strength,internal friction angle, shear strength and tangent modulus of loess increase with dry density,little strain softening is performed on large density while stain hardening is performed on small density.T... |
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| Keywords: | Loess shear strength tri-axial shear test tangent modulus Duncan-Chang model |
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