用空腔膨胀和收缩解计算砂土中压力灌浆土钉的拔出阻力

IF 2.3 Q2 ENGINEERING, GEOLOGICAL International Journal of Geotechnical Engineering Pub Date : 2022-04-15 DOI:10.1080/19386362.2022.2062154
Alpha Lukose, S. Thiyyakkandi
{"title":"用空腔膨胀和收缩解计算砂土中压力灌浆土钉的拔出阻力","authors":"Alpha Lukose, S. Thiyyakkandi","doi":"10.1080/19386362.2022.2062154","DOIUrl":null,"url":null,"abstract":"ABSTRACT Pressure-grouted soil nailing has been extensively used as a soil stabilization technique in transportation infrastructure projects, wherein resistance against pull-out failure is offered by shear resistance mobilized along the nail–soil interface. However, the different stages of soil nail installation significantly alter the soil properties and residual normal stress at the grout-soil interface and thereby the maximum pull-out shear stress. This article presents a computational procedure to predict the maximum pull-out shear stress of pressure-grouted soil nails in sand, incorporating the variation in soil properties and stresses throughout the installation processes and loading. The procedure is formulated within the framework of cavity expansion-contraction solutions as the entire installation and testing phases resemble either expansion or contraction of a cylindrical cavity. The proposed approach was validated using grouting and pull-out test data of soil nails in sand. The influence of various parameters on pull-out shear stress has also been examined.","PeriodicalId":47238,"journal":{"name":"International Journal of Geotechnical Engineering","volume":"16 1","pages":"1068 - 1082"},"PeriodicalIF":2.3000,"publicationDate":"2022-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Computation of pull-out resistance of pressure-grouted soil nails in sand using cavity expansion and contraction solutions\",\"authors\":\"Alpha Lukose, S. Thiyyakkandi\",\"doi\":\"10.1080/19386362.2022.2062154\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"ABSTRACT Pressure-grouted soil nailing has been extensively used as a soil stabilization technique in transportation infrastructure projects, wherein resistance against pull-out failure is offered by shear resistance mobilized along the nail–soil interface. However, the different stages of soil nail installation significantly alter the soil properties and residual normal stress at the grout-soil interface and thereby the maximum pull-out shear stress. This article presents a computational procedure to predict the maximum pull-out shear stress of pressure-grouted soil nails in sand, incorporating the variation in soil properties and stresses throughout the installation processes and loading. The procedure is formulated within the framework of cavity expansion-contraction solutions as the entire installation and testing phases resemble either expansion or contraction of a cylindrical cavity. The proposed approach was validated using grouting and pull-out test data of soil nails in sand. The influence of various parameters on pull-out shear stress has also been examined.\",\"PeriodicalId\":47238,\"journal\":{\"name\":\"International Journal of Geotechnical Engineering\",\"volume\":\"16 1\",\"pages\":\"1068 - 1082\"},\"PeriodicalIF\":2.3000,\"publicationDate\":\"2022-04-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Geotechnical Engineering\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1080/19386362.2022.2062154\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, GEOLOGICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Geotechnical Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/19386362.2022.2062154","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, GEOLOGICAL","Score":null,"Total":0}
引用次数: 0

摘要

摘要:压力灌浆土钉作为一种土壤稳定技术在交通基础设施项目中得到了广泛应用,其中抗拔破坏的阻力是通过沿钉土界面调动的抗剪阻力来提供的。然而,土钉安装的不同阶段会显著改变土壤性质和浆土界面处的残余法向应力,从而改变最大拔出剪切应力。本文提出了一种计算程序,用于预测砂中压力灌浆土钉的最大拔出剪切应力,包括整个安装过程和荷载过程中土壤性质和应力的变化。该程序是在空腔膨胀-收缩解决方案的框架内制定的,因为整个安装和测试阶段类似于圆柱形空腔的膨胀或收缩。利用砂土中土钉的灌浆和拔出试验数据对所提出的方法进行了验证。研究了各种参数对拔出剪切应力的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
Computation of pull-out resistance of pressure-grouted soil nails in sand using cavity expansion and contraction solutions
ABSTRACT Pressure-grouted soil nailing has been extensively used as a soil stabilization technique in transportation infrastructure projects, wherein resistance against pull-out failure is offered by shear resistance mobilized along the nail–soil interface. However, the different stages of soil nail installation significantly alter the soil properties and residual normal stress at the grout-soil interface and thereby the maximum pull-out shear stress. This article presents a computational procedure to predict the maximum pull-out shear stress of pressure-grouted soil nails in sand, incorporating the variation in soil properties and stresses throughout the installation processes and loading. The procedure is formulated within the framework of cavity expansion-contraction solutions as the entire installation and testing phases resemble either expansion or contraction of a cylindrical cavity. The proposed approach was validated using grouting and pull-out test data of soil nails in sand. The influence of various parameters on pull-out shear stress has also been examined.
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
CiteScore
5.30
自引率
5.30%
发文量
32
期刊最新文献
De-carbonizing in construction using supplementary cementitious materials and accelerated carbonation technique - a review Assessment of p-y response of a laterally loaded single pile embedded in two-layered cohesionless substrata with inclined interface Optimization of water repellency in soils for geotechnical applications SWRC interpretation of iron ore tailings blends focusing on saturation assessment of dry stacking Influence of residual stress and soil dilatancy on the load capacity of jacked pile
×
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
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 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 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1