不同种类软土与杂填土互嵌沉降试验研究
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TU41

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国家自然科学基金资助项目(517034711)


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

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张福海,崔赟,薛浩宇,刘峥嵘,黄振清.不同种类软土与杂填土互嵌沉降试验研究[J].河北工程大学自然版,2024,41(5):16-26

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  • 收稿日期:2023-11-18
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  • 在线发布日期: 2024-11-02
  • 出版日期: 2024-10-25