| 三轴试验土样的端部影响问题研究 |
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| 引用本文： | 王助贫,邵龙潭.三轴试验土样的端部影响问题研究[J].岩土力学,2003,24(3):363-367. |
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| 作者姓名： | 王助贫 邵龙潭 |
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| 作者单位： | 大连理工大学,工程力学系,辽宁,大连,116023 |
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| 基金项目： | 教育部高等学校骨干教师资助计划资助(编号:2000-65)，留学回国人员科研启动基金资助项目(编号:2001-345) |
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| 摘 要： | 在以往的研究中。由于受到三轴试样变形测量子段的限制，无法定量研究三轴试样的端部约束对试样受力变形及其测量结果的影响。采用数字图像测量技术。直接量测试样的轴向变形和径向变形，把它们与传统测量方法得到的变形测量结果进行比较，定量分析端部约束与端部接触对三轴试验土样的影响。同时笔者建议采用数字图像测量技术。直接测量三轴试样中间部分的土样变形，以此避开试样端部的影响，使试验结果更加真实可靠。
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| 关 键 词： | 三轴试验 端部约束 端部接触 数字图像测量 变形测量 |
| 文章编号： | 1000-7598-(2003)03-0363-06 |
| 收稿时间： | 2002-03-25 |
| 修稿时间： | 2002年3月25日 |
Research on influence of end effect of soil specimens in triaxial tests |
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| WANG Zhu-pin,SHAO Long-tan.Research on influence of end effect of soil specimens in triaxial tests[J].Rock and Soil Mechanics,2003,24(3):363-367. |
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| Authors: | WANG Zhu-pin SHAO Long-tan |
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| Institution: | Deparment of Engineering Mechamics, Dalian University of Technology, Dalian 116023, China |
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| Abstract: | Because of limitations of deformation measurement method, it was difficult to research the influences of soil specimen deformation caused by end restraint and end contact in triaxial test before. By digital image processing technique, the axial deformation and radial deformation of triaxial specimen are measured directly. Making a comparison between the results with traditional method and digital image processing technique, these influences are determined quantitatively. Finally, it is concluded that using the digital image processing method measure the local deformation directly can avoid the influence of the end restraint and end contact to the deformation of soil specimen. |
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| Keywords: | triaxial test: end restraint: end contact digital image processing technique: deformation measurement |
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