| K_0状态超固结软黏土蠕变性状的试验和理论研究 |
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| 引用本文： | 俞帆,胡亚元,谢嘉祺,赵长军,张超杰.K_0状态超固结软黏土蠕变性状的试验和理论研究[J].公路交通技术,2019,35(1):1-6,12. |
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| 作者姓名： | 俞帆 胡亚元 谢嘉祺 赵长军 张超杰 |
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| 作者单位： | 浙江省交通规划设计研究院有限公司,杭州,310006;浙江大学 滨海与城市岩土工程研究中心,杭州,310058;浙江省水利河口研究院,杭州,310020 |
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| 基金项目： | 浙江省交通运输厅科技项目 |
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| 摘 要： | 为了研究软黏土K_0应力状态下土体的蠕变规律,对湖州软黏土进行了K_0状态下三轴蠕变试验,从竖向应变和剪切应变2方面对试验结果进行分析,在竖向应变分析中,采用"陈氏法"对试验结果进行处理,得到了超固结比对次固结系数的影响规律;在剪切应变分析中,采用Hu-Xie一维剪切蠕变等效时间模型对试验数据进行了归纳。研究结果表明:超固结软黏土竖向应变的次固结系数随超固结比的增大呈指数型减小,超载预压法能有效减小工后次固结沉降; Hu-Xie模型在超固结土的剪切应变计算中具有较好的适用性。
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| 关 键 词： | 软黏土 K0状态 超固结比 次固结系数 剪切蠕变模型 |
Experimental and Theoretical Study on Creep Properties of Overconsolidated Soft Clay under K_0 State |
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| YU Fan,HU Yayuan,XIE Jiaqi,ZHAO Changjun,ZHANG Chaojie.Experimental and Theoretical Study on Creep Properties of Overconsolidated Soft Clay under K_0 State[J].Technology of Highway and Transport,2019,35(1):1-6,12. |
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| Authors: | YU Fan HU Yayuan XIE Jiaqi ZHAO Changjun ZHANG Chaojie |
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| Institution: | (Zhejiang Provincial Institute of Communications Planning Design and Research, Hangzhou 310006,Zhejiang, China;Research Center of Coastal and Urban Geotechnical Engineering,Zhejiang University, Hangzhou 310058, Zhejiang, China;Zhejiang Institute ofHydraulics and Estuary, Hangzhou 310020, Zhejiang, China) |
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| Abstract: | YU Fan;HU Yayuan;XIE Jiaqi;ZHAO Changjun;ZHANG Chaojie(Zhejiang Provincial Institute of Communications Planning Design and Research, Hangzhou 310006,Zhejiang, China;Research Center of Coastal and Urban Geotechnical Engineering,Zhejiang University, Hangzhou 310058, Zhejiang, China;Zhejiang Institute ofHydraulics and Estuary, Hangzhou 310020, Zhejiang, China) |
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| Keywords: | soft clay K0 state overconsolidation ratio secondary consolidation coefficient shear creep model |
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