地震作用下各种因素对桩和地基土性能的影响

IF 2 4区 地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY
Muhammad Hamzah Fansuri , Muhsiung Chang , Pungky Dharma Saputra , Nina Purwanti , Anasya Arsita Laksmi , Sabrina Harahap , Surya Dewi Puspitasari
{"title":"地震作用下各种因素对桩和地基土性能的影响","authors":"Muhammad Hamzah Fansuri ,&nbsp;Muhsiung Chang ,&nbsp;Pungky Dharma Saputra ,&nbsp;Nina Purwanti ,&nbsp;Anasya Arsita Laksmi ,&nbsp;Sabrina Harahap ,&nbsp;Surya Dewi Puspitasari","doi":"10.1016/j.sesci.2022.09.001","DOIUrl":null,"url":null,"abstract":"<div><p>Buckling instability has been identified as a possible mechanism of pile failure in liquefiable ground and this failure mechanism is not explicitly mentioned in most of the design codes. Pile buckling would be affected, however, by various factors including liquefaction zone of foundations soils, axial loads of piles, geometry as well as arrangement of pile foundation, etc. An efficient approach using deterministic by Bhattacharya is proposed to compute the buckling instability in pile. This method is verified and validated using 3D finite-element simulation through OpenSeesPL. A more comprehensive study of numerical simulation would include the effects of various factors on the responses of piles and foundations soils due to seismic loading. The findings reported that an increase in axial loading would generally increase the excess pore pressure in soils and would generally increase the deflection and bending moment in piles and acceleration responses in soils. An increase in pile spacing would generally increase the deflection and bending moment in piles, as a result of more soil volume among the piles. An increase in diameter of pile would increase in rigidity and maximum bending capacity of piles and thus would resist more energy released in liquefiable ground that amplifies the deflection (curvature) of pile. A comparison of two approaches confirms the pile would be safe from buckling failure against soil liquefaction during seismic loading. Finally, this study would provide for predicting pile buckling instability and the behaviors of piles and foundation soils due to seismic shaking and liquefied ground.</p></div>","PeriodicalId":54172,"journal":{"name":"Solid Earth Sciences","volume":null,"pages":null},"PeriodicalIF":2.0000,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2451912X22000319/pdfft?md5=085b7f8b9ed1ca86c47cb1ef3d12b704&pid=1-s2.0-S2451912X22000319-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Effects of various factors on behaviors of piles and foundation soils due to seismic shaking\",\"authors\":\"Muhammad Hamzah Fansuri ,&nbsp;Muhsiung Chang ,&nbsp;Pungky Dharma Saputra ,&nbsp;Nina Purwanti ,&nbsp;Anasya Arsita Laksmi ,&nbsp;Sabrina Harahap ,&nbsp;Surya Dewi Puspitasari\",\"doi\":\"10.1016/j.sesci.2022.09.001\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Buckling instability has been identified as a possible mechanism of pile failure in liquefiable ground and this failure mechanism is not explicitly mentioned in most of the design codes. Pile buckling would be affected, however, by various factors including liquefaction zone of foundations soils, axial loads of piles, geometry as well as arrangement of pile foundation, etc. An efficient approach using deterministic by Bhattacharya is proposed to compute the buckling instability in pile. This method is verified and validated using 3D finite-element simulation through OpenSeesPL. A more comprehensive study of numerical simulation would include the effects of various factors on the responses of piles and foundations soils due to seismic loading. The findings reported that an increase in axial loading would generally increase the excess pore pressure in soils and would generally increase the deflection and bending moment in piles and acceleration responses in soils. An increase in pile spacing would generally increase the deflection and bending moment in piles, as a result of more soil volume among the piles. An increase in diameter of pile would increase in rigidity and maximum bending capacity of piles and thus would resist more energy released in liquefiable ground that amplifies the deflection (curvature) of pile. A comparison of two approaches confirms the pile would be safe from buckling failure against soil liquefaction during seismic loading. Finally, this study would provide for predicting pile buckling instability and the behaviors of piles and foundation soils due to seismic shaking and liquefied ground.</p></div>\",\"PeriodicalId\":54172,\"journal\":{\"name\":\"Solid Earth Sciences\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.0000,\"publicationDate\":\"2022-12-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S2451912X22000319/pdfft?md5=085b7f8b9ed1ca86c47cb1ef3d12b704&pid=1-s2.0-S2451912X22000319-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Solid Earth Sciences\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2451912X22000319\",\"RegionNum\":4,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"GEOSCIENCES, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Solid Earth Sciences","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2451912X22000319","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"GEOSCIENCES, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

摘要

屈曲失稳已被认为是液化地基中桩基破坏的一种可能机制,但在大多数设计规范中并未明确提及这种破坏机制。但是,桩基土的液化区、桩的轴向荷载、桩基础的几何形状和布置方式等因素都会对桩的屈曲产生影响。提出了一种基于Bhattacharya确定性的计算桩屈曲失稳的有效方法。通过OpenSeesPL进行三维有限元仿真,验证了该方法的有效性。更全面的数值模拟研究应包括地震荷载作用下各种因素对桩和地基土体响应的影响。研究结果表明,轴向荷载的增加一般会增加土体超孔隙压力,同时也会增加桩的挠度、弯矩和土体的加速度响应。桩间距的增大通常会使桩间土体体积增大,从而使桩的挠度和弯矩增大。桩径的增大会增加桩的刚度和最大抗弯能力,从而抵抗更多的能量释放到可液化地基中,从而放大桩的挠度(曲率)。通过对两种方法的比较,证实了桩在地震荷载作用下不会发生土体液化的屈曲破坏。最后,本研究可为地震和液化地基作用下的桩屈曲失稳及桩基土的失稳行为预测提供依据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effects of various factors on behaviors of piles and foundation soils due to seismic shaking

Buckling instability has been identified as a possible mechanism of pile failure in liquefiable ground and this failure mechanism is not explicitly mentioned in most of the design codes. Pile buckling would be affected, however, by various factors including liquefaction zone of foundations soils, axial loads of piles, geometry as well as arrangement of pile foundation, etc. An efficient approach using deterministic by Bhattacharya is proposed to compute the buckling instability in pile. This method is verified and validated using 3D finite-element simulation through OpenSeesPL. A more comprehensive study of numerical simulation would include the effects of various factors on the responses of piles and foundations soils due to seismic loading. The findings reported that an increase in axial loading would generally increase the excess pore pressure in soils and would generally increase the deflection and bending moment in piles and acceleration responses in soils. An increase in pile spacing would generally increase the deflection and bending moment in piles, as a result of more soil volume among the piles. An increase in diameter of pile would increase in rigidity and maximum bending capacity of piles and thus would resist more energy released in liquefiable ground that amplifies the deflection (curvature) of pile. A comparison of two approaches confirms the pile would be safe from buckling failure against soil liquefaction during seismic loading. Finally, this study would provide for predicting pile buckling instability and the behaviors of piles and foundation soils due to seismic shaking and liquefied ground.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Solid Earth Sciences
Solid Earth Sciences GEOSCIENCES, MULTIDISCIPLINARY-
CiteScore
3.60
自引率
5.00%
发文量
20
审稿时长
103 days
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信