Lingfei Su , Chenglong Wang , Abdelmalek Bouazza , Gangqiang Kong , Xuanming Ding
{"title":"Vertical dynamic responses of model energy piles","authors":"Lingfei Su , Chenglong Wang , Abdelmalek Bouazza , Gangqiang Kong , Xuanming Ding","doi":"10.1016/j.gete.2024.100598","DOIUrl":null,"url":null,"abstract":"<div><div>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.</div></div>","PeriodicalId":56008,"journal":{"name":"Geomechanics for Energy and the Environment","volume":"40 ","pages":"Article 100598"},"PeriodicalIF":3.3000,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Geomechanics for Energy and the Environment","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2352380824000650","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
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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.
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.
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