热力耦合作用下能量桩的弹性变分解

黄镇伟

doi:10.3724/j.gyjzG23090909

热力耦合作用下能量桩的弹性变分解

doi: 10.3724/j.gyjzG23090909

黄镇伟

中铁建设集团有限公司, 北京 100040

详细信息

作者简介:
黄镇伟,工程师,主要从事建筑工程方面工作。Email:1024211814@qq.com

计量
- 文章访问数: 4
- HTML全文浏览量: 1
- PDF下载量: 0
- 被引次数: 0
出版历程
- 收稿日期: 2023-09-09
- 网络出版日期: 2026-06-06
- 刊出日期: 2026-04-20

Elastic Displacement Solution of Energy Piles Under Thermo-Mechanical Coupling

HUANG Zhenwei

China Railway Construction Group Co., Ltd., Beijing 100040, China

摘要

摘要: 针对能量桩运行期间温度场和应力场的耦合作用，基于能量原理和变分法建立能量桩桩位移函数和土体竖向位移传递函数的控制微分方程，利用边界条件确定未知常数，推导任意温度-荷载组合作用下端承型能量桩和摩擦型能量桩热力行为的解析解。通过与试验实测值对比，验证了该方法具有较好的准确性和合理性，并进一步探究了长径比和温度变化对端承型能量桩和摩擦型能量桩的力学行为的影响。
- 桩基工程 /
- 能量桩 /
- 变分法 /
- 弹性解 /
- 承载变形特性
Abstract: Aiming at the thermo-mechanical coupling effects in energy piles during operation， the controlling differential equations for the pile displacement function and the soil vertical displacement transfer function were established based on energy principles and the variational method. The unknown constants were determined using boundary conditions. The analytical solutions for the thermomechanical behavior of end-bearing energy piles and friction energy piles under arbitrary thermo-mechanical load combinations were derived. Compared with the experimental results， the accuracy and rationality of the proposed method were verified， and the influence of slenderness ratio and temperature variations on the mechanical behavior of end-bearing energy piles and floating energy piles was further investigated.
- pile foundation engineering /
- energy pile /
- variational method /
- elastic solution /
- load-deformation behavior

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参考文献(25)

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