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Field Apparatus for Measurement of Elastic Rebound and Final Set for Driven Pile Capacity Estimation

机译:用于测量弹性回弹和最终变形的现场设备,用于估算打桩能力

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摘要

Many advances have been made on driven piles bearing capacity tests, such as the static and dynamic load tests. However, the cost and the time necessary to prepare these kinds of tests usually restrict their application to a small percentage of the piles. Consequently, the simple and low-cost ways to estimate the bearing capacity of driven piles, for instance, through the final set and the elastic rebound, can be used to control the majority of the piles, and then the results can be compared with more complex and accurate tests executed in fewer elements. This paper describes the development of an in situ tool to measure the elastic rebound and the final set without any direct contact with the pile. Afterwards, these values can be used to evaluate the bearing capacity based on the dynamic formulas proposed by many authors. The apparatus was tested in three different sites, with the results very close to those obtained with the conventional elastic rebound and the final set measuring method.
机译:在打入桩承载力测试(例如静态和动态载荷测试)方面取得了许多进步。但是,准备此类测试所需的成本和时间通常限制了它们在小部分桩中的应用。因此,可以通过简单而低成本的方法来估算打入桩的承载力,例如通过最终变形和弹性回弹来控制大部分桩,然后将结果与更多桩进行比较。用更少的元素执行复杂而准确的测试。本文介绍了一种现场工具的开发,该工具可以在不与桩直接接触的情况下测量弹性回弹和最终变形。之后,这些值可以根据许多作者提出的动力学公式用于评估承载力。该设备在三个不同的位置进行了测试,其结果非常接近于常规弹性回弹和最终设置的测量方法所获得的结果。

著录项

  • 来源
    《Geotechnical testing journal》 |2011年第2期|p.167-171|共5页
  • 作者单位

    Dept. of Fortification and Construction, Military Institute of Engineering,Pr. Gen. Tiburcio 80, Praia Vermelha, Rio de Janeiro 22290-270, Brazil;

    Dept. of Electrical Engineering, Military Institute of Engineering, Pr. Gen.Tiburcio 80, Praia Vermelha, Rio de Janeiro 22290-270, Brazil;

    Dept. of Fortification and Construction, Military Institute of Engineering,Pr. Gen. Tiburcio 80, Praia Vermelha, Rio de Janeiro 22290-270, Brazil;

    Dept. of Fortification and Construction, Military Institute of Engineering,Pr. Gen. Tiburcio 80, Praia Vermelha, Rio de Janeiro 22290-270, Brazil;

    Dept. of Fortification and Construction, Military Institute of Engineering,Pr. Gen. Tiburcio 80, Praia Vermelha, Rio de Janeiro 22290-270, Brazil;

    Dept. of Fortification and Construction, Military Institute of Engineering,Pr. Gen. Tiburcio 80, Praia Vermelha, Rio de Janeiro 22290-270, Brazil;

    Dept. of Electrical Engineering, Military Institute of Engineering, Pr. Gen.Tiburcio 80, Praia Vermelha, Rio de Janeiro 22290-270, Brazil;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    driven pile; bearing capacity; elastic rebound; field test; optical measurement;

    机译:打桩承载能力;弹性回弹现场试验;光学测量;
  • 入库时间 2022-08-18 00:11:57

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