砂柱法制样及剪切速率对黏性粗料三轴试验的影响OACSTPCD
Influence of sample preparation by sand column method and shear rate on triaxial test of cohesive coarse-grained soil
对砂柱法和常规方法制备的黏性粗粒土三轴试样进行饱和试验,对比其饱和效果,同时为论证砂柱对土体排水效果、应力-应变关系和强度特性的影响,开展砂柱法试样和常规试样在不同剪切速率下的三轴CD剪试验,并讨论剪切速率对试验的影响.试验结果表明:砂柱法配合反压饱和6h,试样基本饱水均匀;常规试样的速率敏感度较高,随着剪切速率的增大,强度指标φd 减小、Cd 增大,同一围压下,峰值偏应力减小;体应变εv 与剪切速率呈反比,且围压越大,越不利于土体排水,峰值偏应…查看全部>>
The saturation tests were carried out on triaxial samples of cohesive coarse-grained soil prepared by the sand col-umn method and conventional method,and the saturation effects were compared.To demonstrate the influence of sand column on soil drainage effect,stress-strain relationship and strength characteristics,CD shear tests of sand column method samples and conventional samples at different shear rates were carried out,as well as the influence of the she…查看全部>>
张富臣;王鹏程;张庆建;李玉贵;于磊
中水北方勘测设计研究有限责任公司,天津 300222中水北方勘测设计研究有限责任公司,天津 300222中水北方勘测设计研究有限责任公司,天津 300222中水北方勘测设计研究有限责任公司,天津 300222中水北方勘测设计研究有限责任公司,天津 300222
水利科学
黏性粗粒土剪切速率CD剪砂柱法三轴试验
cohesive coarse-grained soilshear rateCD shearsand column methodtriaxial test
《人民长江》 2024 (1)
223-228,235,7
中水北方勘测设计研究有限责任公司课题基金项目(K2022-134)
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