河北工程大学学报(自然科学版)2024,Vol.41Issue(5) :16-26.DOI:10.3969/j.issn.1673-9469.2024.05.003

不同种类软土与杂填土互嵌沉降试验研究

Experimental Study on Mutally Embedded Settlement Between Different Kinds of Soft Soil and Miscellaneous Fill

张福海 崔赟 薛浩宇 刘峥嵘 黄振清
河北工程大学学报(自然科学版)2024,Vol.41Issue(5) :16-26.DOI:10.3969/j.issn.1673-9469.2024.05.003

不同种类软土与杂填土互嵌沉降试验研究

Experimental Study on Mutally Embedded Settlement Between Different Kinds of Soft Soil and Miscellaneous Fill

张福海 1崔赟 2薛浩宇 2刘峥嵘 2黄振清2
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作者信息

  • 1. 河海大学 岩土力学与堤坝工程教育部重点实验室,江苏 南京 210098;河海大学 疏浚技术教育部工程研究中心,江苏 常州 213022
  • 2. 河海大学 岩土力学与堤坝工程教育部重点实验室,江苏 南京 210098
  • 折叠

摘要

为了研究不同种类软土与杂填土互嵌沉降的规律,以下卧的淤泥软土为研究对象,分别开展了不同软土种类在不同荷载及不同液性指数下与上覆杂填土的室内互嵌沉降试验.分析了不同种类软土与杂填土地基在50,100,150 kPa下总沉降、固结沉降及互嵌沉降随时间发展规律,以及不同种类软土分别在液性指数为0.8、1.0、1.2 与杂填土地基在100 kPa下总沉降、固结沉降及互嵌沉降随时间发展规律.研究结果表明:三种土样互嵌沉降量与互嵌沉降完成度分别随荷载及液性指数的增大而增大,对于不同土样来说,高液限土的互嵌沉降大于低液限土的互嵌沉降,互嵌沉降完成度在不同的液性指数下具有不同的变化规律.

Abstract

In order to study the settlement patterns of different types of soft soil and miscellaneous fill soil,indoor settlement tests were conducted on different types of soft soil and overlying miscellaneous fill soil under di-fferent loads and liquid indices,with the underlying silt soft soil as the research object.The temporal development patterns of total settlement,consolidation settlement,and mutally embedded settlement of different types of soft soil and miscellaneous fill soil foundations at 50,100,150 kPa,as well as the temporal development patterns of total settlement,consolidation settlement,and mutally em-bedded settlement of different soft soils with liquid indices of 0.8,1.0,1.2 and miscellaneous fill soil foundations at 100 kPa were analyzed.The research results indicate that the mutally embedded settle-ment and mutally embedded settlement completion of the three soil samples increase with the increase of load and liquidity index,respectively.For different soil samples,the mutally embedded settlement of high liquid limit soil is greater than that of low liquid limit soil,and the mutally embedded settlement completion has different variation patterns at different liquidity indices.

关键词

杂填土/软土/互嵌沉降/液限/液性指数

Key words

miscellaneous fill soil/soft soil/mutally embedded settlement/liquid limit/liquid index

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基金项目

国家自然科学基金资助项目(517034711)

出版年

2024
河北工程大学学报(自然科学版)
河北工程大学

河北工程大学学报(自然科学版)

CSTPCD
影响因子:0.543
ISSN:1673-9469
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