Predicting the Axial Capacity of Helical Steel Piles from Installation Torque

从安装扭矩预测螺旋钢桩的轴向承载力

• 批准号: 483892-2015
• 负责人: Alfaro, Marolo
• 金额: $ 1.82万
• 依托单位: University of Manitoba
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=583979
• 关键词: Predicting; Axial; Capacity; Helical; Steel

The research project will develop method to estimate the axial load capacity of helical steel piles (screw piles) based on torque measurements during pile installation. This will allow for the design and fabrication or modification of a small scale hydraulic wrench and power pack complete with torque to load conversion chart(s) and/or equation (s). The research will also develop new construction methods and improve design of helical piles with floating stabilizers. The benefits to Canada are in helping to differentiate national competitive advantages in the niche helical pile industry. At present, similar products are being developed and manufactured within Canada that could also benefit from the floating stabilizer in areas subject to frost uplifting. This grant will facilitate licensing or adapting the floating stabilizer to other helical screw pile systems both in Canada as well as internationally.

本研究将发展螺旋钢桩（螺旋桩）轴向承载力的估算方法 基于桩安装期间的扭矩测量。这将允许设计和制造或 小型液压扳手和动力组的改进，包括扭矩到负载的转换 图表和/或方程式。该研究还将开发新的施工方法， 带浮动稳定器的螺旋桩。 加拿大的好处是有助于区分国家竞争优势的利基螺旋桩 行业目前，加拿大正在开发和制造类似的产品， 受益于浮动稳定器在受霜冻隆起的地区。这将有助于许可证或 使浮动稳定器适用于加拿大和国际上的其他螺旋桩系统。