| 摘要: |
| 通过室内静三轴试验,对黄河水下三角洲埕岛海域沉积物———粉土的剪切特性进行了研究。比较了粉土在低围压和高围压下的剪切变形特性和强度特性。试验结果表明,粉土在低围压(10,20,30,40 kPa)下的应力应变曲线和高围压下的应力应变曲线总体趋势基本一致,但在不同围压下其抗剪强度存在差别。 |
| 关键词: 粉土 低围压 应力-应变曲线 抗剪强度 |
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| 基金项目:国家自然科学基金资助项目(40376015) |
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| Laboratory investigation on shear properties of silt under low confining pressure |
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| Abstract: |
| The shear properties of silt in Chengdao’s sea area under different confining pressures were studied through triaxial compression test. The test results demonstrate that the trend of the stress-strain curves of silt under low and high stress levels are simillar, but the shear strength parameters are different under different confining pressures. |
| Key words: silt low confining prssure stress-strain curve shear strength |
