Minimizing of tunneling effect on existing infrastructure in Egypt

Q3 Earth and Planetary Sciences

Scientific Review Engineering and Environmental Sciences Pub Date : 2021-03-22 DOI:10.22630/PNIKS.2021.30.1.1

Kamel Asker, M. Bahr, Ahmed El-Attar, M. Fouad

{"title":"Minimizing of tunneling effect on existing infrastructure in Egypt","authors":"Kamel Asker, M. Bahr, Ahmed El-Attar, M. Fouad","doi":"10.22630/PNIKS.2021.30.1.1","DOIUrl":null,"url":null,"abstract":"The construction of two closely distant tunnels under an existing tunnel can cause greater deformation for the existing tunnel and the ground due to the dual disturbances caused by the tunneling process (Jin, Yuan, Li & Zheng, 2018). Several studies have estimated the ground movements as well as the deformation has induced in the existing tunnels by the construction of a new tunnel (Fang, Zhang, Li & Wong, 2015; Zhang, Liu, Kang, Zhong & Chen, 2018; Lin, Chen, Wu & Cheng, 2019). Grout technology is widely used for strengthening the soil and protecting the existing structures in shield tunneling. Li, Zhang and Yuan (2013) presented the case of using jacking as the tunnel protection methodology in case of the tunnel excavation under the existing one. Kimpritis, Smon, Pandrea and Vukotic (2014) explained how jet grouting could be used as the integral part of the complex tunneling projects. They summarized the basic framework for the design and execution of jet-grouting in tunneling. In this research, the case history of the intersection of Al-Azhar twin tunnel with the CWO sewer is idealized using the three-dimensional numerical model. Consequently, in this study, a series of parametric studies are conducting by utilizing the verified model of the case history to evaluate the effect of other different protection techniques. The key part of this paper is to investigate the best configuration technique to minimize the tunneling effect on an adjacent structure. PRACE ORYGINALNE ORIGINAL PAPERS","PeriodicalId":38397,"journal":{"name":"Scientific Review Engineering and Environmental Sciences","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2021-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Scientific Review Engineering and Environmental Sciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.22630/PNIKS.2021.30.1.1","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Earth and Planetary Sciences","Score":null,"Total":0}

引用次数: 0

Abstract

The construction of two closely distant tunnels under an existing tunnel can cause greater deformation for the existing tunnel and the ground due to the dual disturbances caused by the tunneling process (Jin, Yuan, Li & Zheng, 2018). Several studies have estimated the ground movements as well as the deformation has induced in the existing tunnels by the construction of a new tunnel (Fang, Zhang, Li & Wong, 2015; Zhang, Liu, Kang, Zhong & Chen, 2018; Lin, Chen, Wu & Cheng, 2019). Grout technology is widely used for strengthening the soil and protecting the existing structures in shield tunneling. Li, Zhang and Yuan (2013) presented the case of using jacking as the tunnel protection methodology in case of the tunnel excavation under the existing one. Kimpritis, Smon, Pandrea and Vukotic (2014) explained how jet grouting could be used as the integral part of the complex tunneling projects. They summarized the basic framework for the design and execution of jet-grouting in tunneling. In this research, the case history of the intersection of Al-Azhar twin tunnel with the CWO sewer is idealized using the three-dimensional numerical model. Consequently, in this study, a series of parametric studies are conducting by utilizing the verified model of the case history to evaluate the effect of other different protection techniques. The key part of this paper is to investigate the best configuration technique to minimize the tunneling effect on an adjacent structure. PRACE ORYGINALNE ORIGINAL PAPERS

查看原文本刊更多论文

尽量减少隧道对埃及现有基础设施的影响

在既有隧道下施工两条距离较近的隧道，由于隧道开挖过程产生的双重扰动，会对既有隧道和地面造成较大的变形(Jin, Yuan, Li & Zheng, 2018)。有几项研究估计了新隧道建设对现有隧道的地面运动和变形的影响(Fang, Zhang, Li & Wong, 2015;张、刘、康、钟、陈，2018;林、陈、吴、程，2019)。在盾构施工中，注浆技术广泛应用于加固土体和保护既有构筑物。Li, Zhang和Yuan(2013)提出了在现有隧道下开挖时使用顶进作为隧道保护方法的案例。Kimpritis, Smon, Pandrea和Vukotic(2014)解释了如何将喷射注浆作为复杂隧道工程的组成部分。总结了隧道注浆设计与施工的基本框架。本研究采用三维数值模型对爱资哈尔双隧道与CWO下水道交叉口的个案历史进行了理想化分析。因此，本研究利用经验证的病例史模型进行了一系列参数化研究，以评估其他不同防护技术的效果。本文的关键部分是探讨最佳配置技术，以尽量减少隧道对相邻结构的影响。练习原创论文

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Scientific Review Engineering and Environmental Sciences Earth and Planetary Sciences-Earth-Surface Processes

CiteScore

1.50

自引率

0.00%

发文量

审稿时长

26 weeks

期刊介绍： Scientific Review Engineering and Environmental Sciences [Przegląd Naukowy Inżynieria i Kształtowanie Środowiska] covers broad area of knowledge and practice on fields such as: sustainable development, landscaping of non-urbanized lands, environmental engineering, construction projects engineering land management, protection and land reclamation, environmental impact of investments, ecology, hydrology and water management, ground-water monitoring and restoration, geotechnical engineering, meteorology and connecting subjects. Authors are welcome to submit theoretical and practice-oriented papers containing detailed case studies within above mentioned disciplines. However, theoretical papers should contain part with practical application of the theory presented. Papers (in Polish or English languages) are accepted for publication after obtaining positive opinions of two reviewers. Papers published elsewhere are not accepted.