Modelling of Penetration Resistance and Static Capacity of Piles Driven by Vibration (REU Supplement)

振动驱动桩的贯入阻力和静承载力建模（REU 补充）

• 批准号: 8920412
• 负责人: Michael O'Neill
• 金额: $ 13.05万
• 依托单位: University of Houston
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-08-15 至 1993-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8920412&HistoricalAwards=false
• 关键词: Modelling; Penetration; Resistance; Static; Capacity

This study addresses the predictability of pile behavior installed by vibration process, using ground penetration response and static performance of piles. Interest in this problem is motivated by the fact that the use of vibratory drivers can significantly increase the rate at which piles can be installed in certain soils relative to impact hammers, with less damage to piles, but that use in restricted by the unavailability of a utilitarian predictive model. The proposed project will extend an ongoing experimental study to focus on a systematic evaluation of the fundamental mechanism of the installation of piles by vibration and to code that information in a computer program, written for the microcomputer. The computer program will predict the behavior and static capacity of vibrator- installed piles in sands and allow practitioners to study the effects of the variables of the problem on driving. With increased confidence in the predictability of pile performance offered by this study, it is envisaged more piles at substantial savings will be driven by vibration where subsurface conditions are appropriate.

这项研究解决了可预测性的桩行为安装 通过振动过程，使用地面穿透响应和静态 桩的性能。 对这个问题的兴趣是由 事实上，使用振动驱动器可以显著增加 在某些土壤中安装桩的速度相对于 冲击锤，对桩的损伤较小，但在 受到功利主义预测模型不可用的限制。 拟议的项目将扩大一项正在进行的实验研究， 重点是系统评价的基本机制， 振动沉桩及信息编码 在一个为微型计算机编写的计算机程序中。 计算机 程序将预测振动器的行为和静态容量- 在沙地上安装桩，让从业人员研究 问题变量对驾驶的影响。 具有增加 对桩性能的可预测性的信心， 这项研究，预计更多的桩在大量节省将 在地下条件合适的情况下，通过振动驱动。