Vertical dynamic responses of model energy piles

IF 3.3 2区工程技术 Q3 ENERGY & FUELS

Geomechanics for Energy and the Environment Pub Date : 2024-09-25 DOI:10.1016/j.gete.2024.100598

Lingfei Su , Chenglong Wang , Abdelmalek Bouazza , Gangqiang Kong , Xuanming Ding

引用次数: 0

Abstract

This paper explores the dynamic responses of model energy piles embedded in sand subjected to the combined effects of temperature change and cyclic mechanical loading. The same type of cyclic loading was applied separately on three single energy piles with temperature differences (ΔT) of −20 ℃, +20 ℃ and 0 ℃, respectively. The results show that after 2000 cycles of mechanical loading, the cumulative displacement of the energy pile increased under cooling conditions and decreased under heating conditions. The tip resistance of a single energy pile increased under both conditions, especially during cooling.

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模型能量桩的垂直动态响应

本文探讨了嵌入砂中的模型能量桩在温度变化和循环机械荷载的共同作用下的动态响应。对温差（ΔT）分别为-20 ℃、+20 ℃和0 ℃的三个单个能量桩分别施加了相同类型的循环荷载。结果表明，在机械加载 2000 个循环后，能量桩的累积位移在冷却条件下增加，在加热条件下减少。在这两种条件下，单根能量桩的桩尖阻力都有所增加，尤其是在冷却条件下。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Geomechanics for Energy and the Environment Earth and Planetary Sciences-Geotechnical Engineering and Engineering Geology

CiteScore

5.90

自引率

11.80%

发文量

期刊介绍： The aim of the Journal is to publish research results of the highest quality and of lasting importance on the subject of geomechanics, with the focus on applications to geological energy production and storage, and the interaction of soils and rocks with the natural and engineered environment. Special attention is given to concepts and developments of new energy geotechnologies that comprise intrinsic mechanisms protecting the environment against a potential engineering induced damage, hence warranting sustainable usage of energy resources. The scope of the journal is broad, including fundamental concepts in geomechanics and mechanics of porous media, the experiments and analysis of novel phenomena and applications. Of special interest are issues resulting from coupling of particular physics, chemistry and biology of external forcings, as well as of pore fluid/gas and minerals to the solid mechanics of the medium skeleton and pore fluid mechanics. The multi-scale and inter-scale interactions between the phenomena and the behavior representations are also of particular interest. Contributions to general theoretical approach to these issues, but of potential reference to geomechanics in its context of energy and the environment are also most welcome.