| 掺砂红土的力学特性及掺砂机理研究 |
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| 引用本文： | 石崇喜,黄英,杨玉婷,冯欢,伯桐震.掺砂红土的力学特性及掺砂机理研究[J].工程勘察,2011(4):1-8. |
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| 作者姓名： | 石崇喜 黄英 杨玉婷 冯欢 伯桐震 |
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| 作者单位： | 昆明理工大学; |
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| 基金项目： | 国家自然科学基金项目(50868009); 昆明理工大学2010创新基金项目(2010YC069) |
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| 摘 要： | 通过对不同掺砂比例的红土进行液塑限、击实、无侧限抗压强度、直剪和扫描电镜等试验的对比研究,明确了不同掺砂比例对红土的含水性、击实性、强度等力学特性以及微结构特征的影响.试验结果表明:红土掺砂后,可以显著降低红土的液塑限、塑性指数和最优含水率,提高最大干密度、无侧限抗压强度和抗剪强度.随着掺砂比例的增加,掺砂红土的液塑限...
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| 关 键 词： | 掺砂红土 力学特性 微结构特征 掺砂机理 |
Research on mechanical properties and sand-doped mechanism of the laterite improved with sand |
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| Shi Chongxi,Huang Ying,Yang Yuting,Feng Huan,Bo Tongzhen.Research on mechanical properties and sand-doped mechanism of the laterite improved with sand[J].Geotechnical Investigation & Surveying,2011(4):1-8. |
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| Authors: | Shi Chongxi Huang Ying Yang Yuting Feng Huan Bo Tongzhen |
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| Affiliation: | Shi Chongxi,Huang Ying,Yang Yuting,Feng Huan,Bo Tongzhen(Kunming University of Science and Technology,Kunming 650051,China) |
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| Abstract: | Based on the comparison study of the tests such as Atterberg limits tests,compaction tests,unconfined compression tests,direct shear tests and SEM tests on the mixtures of laterite and sand with different mixing ratios,the influences of different sand-doped ratios to the water features,compaction behaviors,strength properties and micro-structural characteristics of laterite are analyzed.The testing results indicate that after the sand with different mixing ratios is added to laterite,the liquid limit,plasti... |
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| Keywords: | sand-doped laterite mechanical property micro-structure characteristic sand-doped mechanism |
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