摘要
软土具有明显的流变特性,导致土体沉降变形、滑坡等严重的岩土地质灾害,对工程的稳定性和安全性构成极大的威胁。在静态荷载作用下测试了淤泥质软土的初始剪切力、塑性黏度等流变参数,并分析了黏粒含量、含水率等因素对流变参数的影响特性。采用理论分析微观结构显微技术,揭示了黏粒含量、含水率等对流变参数的影响作用机理。研究结论对分析软土流变参数影响特性、快速预测流变参数、加固处理软土地基、提高承载力和整体强度等具有理论和实际意义。
Soft soil has obvious rheological character and it will induce subsidence distortion,landslide etc.serious geotechnical and geologic disasters,and make severe threatening to stability and security of projects.The initializing shear stress and viscosity of sullage soft soil are tested under static load;and the influencing characteristics are analyzed,of which the percentage of clay and water affect the rheological parameters.The mechanism of which the percentage of clay and water affect the rheological parameters are opened out by using the theoretical analysis and technology of structure micrograph.The research results have theoretical and practical significance for us to analyse changing disciplinarian of rheological parameters,reinforce soft soil foundation,raise bearing capacity and whole strength of soft soil.
作者
胡华
HU Hua(Department of Civil Engineering,Xiamen University,Xiamen 361005,China)
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2008年第S01期507-510,共4页
Rock and Soil Mechanics
基金
国家自然科学基金资助(No.50678155)
福建省高等学校新世纪优秀人才支持计划。
关键词
淤泥质软土
黏粒含量
含水率
流变参数
影响机理
sullage soft soil
percentage of clay
percentage of water
rheological parameters
influencing mechanism
