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首页> 外文会议>Collaborative management of integrated watersheds >LABORATORY TESTING OF AN ALLUVIAL CLAYEY AND SILTY SAND
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LABORATORY TESTING OF AN ALLUVIAL CLAYEY AND SILTY SAND

机译：冲积层和粉质砂的实验室测试

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摘要

This paper describes laboratory testing recently performed on high quality tube samples obtained from a dam site that has been extensively characterized with in situ studies. Conventional tube samples were obtained from critical strata within the dam foundation and classify as clayey and silty sand with fines content of 40 to 48% and plasticity index of 4 to 13. The effect of sample disturbance was a major concern for these soils and additional measures were taken during sampling and specimen preparation to obtain high quality laboratory results. Laboratory testing included classification and monotonic and cyclic direct simple shear (DSS) tests. A testing protocol was introduced to better assess the effect sample disturbance has on monotonic and cyclic shear strength behavior and the degree to which measured strengths are expected to represent in-situ strengths.
机译：本文介绍了最近对从坝址获得的高质量试管样品进行的实验室测试，这些样品在现场研究中已得到广泛表征。常规管样品是从坝基内的关键地层获得的，分类为黏土和粉砂，细度为40％至48％，可塑性指数为4至13。样品扰动的影响是这些土壤和其他措施的主要关注点在取样和样品制备过程中进行了采集，以获得高质量的实验室结果。实验室测试包括分类以及单调和循环直接简单剪切（DSS）测试。引入了一个测试规程，以更好地评估样品扰动对单调和循环剪切强度行为的影响，以及预期测得的强度代表现场强度的程度。

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  • 来源
  • 会议地点 Sacramento CA(US)
  • 作者

    Karina R. Dahl; rnJason T. DeJong; Ross W. Boulanger; Michael W. Driller;

  • 作者单位

    University of California, Dept. of Civil and Environmental Engineering, Engineering III, 1 Shields Avenue, Davis, CA 95616;

    rnUniversity of California, Dept. of Civil and Environmental Engineering, Room 3101 Engineering III, 1 Shields Avenue, Davis, CA 95616;

    rnUniversity of California, Dept. of Civil and Environmental Engineering, Room 3151 Engineering III, 1 Shields Avenue, Davis, CA 95616;

    rnDepartment of Water Resources, P.O. Box 942836,1416 Ninth St., Sacramento, CA 94236-0001;

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  • 正文语种 eng
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