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饱和粉土在低围压下剪切特性的试验研究
章伟¹, 林霖², 冯秀丽², 董攀¹
1.青岛理工大学土木学院;2.中国海洋大学海洋地球科学学院

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

DOI：

分类号:

基金项目:国家自然科学基金资助项目(40376015)

Laboratory investigation on shear properties of silt under low confining pressure

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

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