After a delayed start on the Slovenian side the breakthrough of the second tube of the Karawanks Tunnel took place on March 18, 2024. During the excavation work on the southern, Slovenian tube, a change in the geology became apparent after the first 2800 m of excavation. Therefore, the support systems had to be adapted according to the new conditions. The construction company selected Omega-Bolt expandable friction bolts for further installation to control squeezing rock conditions. (Source: DSI Underground)
{"title":"Cover Picture: Geomechanics and Tunnelling 4/2024","authors":"","doi":"10.1002/geot.202480401","DOIUrl":"https://doi.org/10.1002/geot.202480401","url":null,"abstract":"<p>After a delayed start on the Slovenian side the breakthrough of the second tube of the Karawanks Tunnel took place on March 18, 2024. During the excavation work on the southern, Slovenian tube, a change in the geology became apparent after the first 2800 m of excavation. Therefore, the support systems had to be adapted according to the new conditions. The construction company selected Omega-Bolt expandable friction bolts for further installation to control squeezing rock conditions. (Source: DSI Underground)</p>","PeriodicalId":39412,"journal":{"name":"Geomechanik und Tunnelbau","volume":"17 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/geot.202480401","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141994191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dr. rer.nat. Sebastian Macke, Stephan Munsch, Dr.-Ing. Janosch Stascheit, Dr.-Ing. Ulrich Maidl, Dr.-Ing. Felix Hegemann
{"title":"AI-based anomaly detection in tunnel excavation data\u0000 KI-basierte Anomalieerkennung in Tunnelvortriebsdaten","authors":"Dr. rer.nat. Sebastian Macke, Stephan Munsch, Dr.-Ing. Janosch Stascheit, Dr.-Ing. Ulrich Maidl, Dr.-Ing. Felix Hegemann","doi":"10.1002/geot.202400017","DOIUrl":"https://doi.org/10.1002/geot.202400017","url":null,"abstract":"","PeriodicalId":39412,"journal":{"name":"Geomechanik und Tunnelbau","volume":"17 4","pages":"312-323"},"PeriodicalIF":0.0,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141994055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Content: Geomechanics and Tunnelling 4/2024","authors":"","doi":"10.1002/geot.202480411","DOIUrl":"https://doi.org/10.1002/geot.202480411","url":null,"abstract":"","PeriodicalId":39412,"journal":{"name":"Geomechanik und Tunnelbau","volume":"17 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/geot.202480411","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141994192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marc Comulada, Gustavo Aguiar, Mike Vassallo Crisci, Maria Isabel Reig Ramos
The São Paulo Metro is expanding its network in the São Paulo Metropolitan Area inhabited by 21 million people. Metro Line 6 connects the north of the city to the existing metro network further South. The construction of Line 6 currently represents the largest infrastructure project in Latin America, combining the excavation of tunnel boring machine (TBM) and conventional tunnels, cut-and-cover stations and a number of deep emergency exit shafts. This paper presents the main features of the TBM tunnel excavated in the South stretch through the Tertiary soils of the São Paulo Basin and through the challenging Embu Complex, which consists of a mixture of fractured rock, saprolite and residual soils. The alignment runs under the dense urban grid of São Paulo under high-rise buildings and other infrastructure, such as existing Metro lines.
{"title":"TBM excavation of São Paulo Metro Line 6 South in heterogeneous ground in urban area","authors":"Marc Comulada, Gustavo Aguiar, Mike Vassallo Crisci, Maria Isabel Reig Ramos","doi":"10.1002/geot.202400016","DOIUrl":"10.1002/geot.202400016","url":null,"abstract":"<p>The São Paulo Metro is expanding its network in the São Paulo Metropolitan Area inhabited by 21 million people. Metro Line 6 connects the north of the city to the existing metro network further South. The construction of Line 6 currently represents the largest infrastructure project in Latin America, combining the excavation of tunnel boring machine (TBM) and conventional tunnels, cut-and-cover stations and a number of deep emergency exit shafts. This paper presents the main features of the TBM tunnel excavated in the South stretch through the Tertiary soils of the São Paulo Basin and through the challenging Embu Complex, which consists of a mixture of fractured rock, saprolite and residual soils. The alignment runs under the dense urban grid of São Paulo under high-rise buildings and other infrastructure, such as existing Metro lines.</p>","PeriodicalId":39412,"journal":{"name":"Geomechanik und Tunnelbau","volume":"17 4","pages":"306-311"},"PeriodicalIF":0.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141660591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Silvertown Tunnel is a new twin-bore road tunnel under the River Thames in the east of London that increases the river crossing capacity in this area and provides enough clearance for the zero-emission double-decker buses. It is being delivered by Riverlinx CJV on behalf on Transport for London (TfL). The overall project consists of tunnel approach ramps at both portals, cut and cover tunnels, and two 1.1 km-long bored tunnel sections as well as highway connections including a new footbridge and service buildings for operating the tunnel from either end. In this article, the approach and challenges of mechanised tunnelling including the river crossing in a high-density area, with a large-diameter earth pressure balance (EPB) machine in mixed-face conditions, are presented. The Tunnel Bori selection based on the geological and geotechnical information is evaluated and compared to the experience during execution of tunnelling. In detail, the actual EPB drive is evaluated by considering the face pressure support, predicted surface settlements and planned cutterhead maintenance.
{"title":"EPB tunnelling at the Silvertown Tunnel Project in London","authors":"Dr.-Ing. Alena Conrads, Oon Hooi Lim, Ivor Thomas","doi":"10.1002/geot.202400009","DOIUrl":"10.1002/geot.202400009","url":null,"abstract":"<p>The Silvertown Tunnel is a new twin-bore road tunnel under the River Thames in the east of London that increases the river crossing capacity in this area and provides enough clearance for the zero-emission double-decker buses. It is being delivered by Riverlinx CJV on behalf on Transport for London (TfL). The overall project consists of tunnel approach ramps at both portals, cut and cover tunnels, and two 1.1 km-long bored tunnel sections as well as highway connections including a new footbridge and service buildings for operating the tunnel from either end. In this article, the approach and challenges of mechanised tunnelling including the river crossing in a high-density area, with a large-diameter earth pressure balance (EPB) machine in mixed-face conditions, are presented. The Tunnel Bori selection based on the geological and geotechnical information is evaluated and compared to the experience during execution of tunnelling. In detail, the actual EPB drive is evaluated by considering the face pressure support, predicted surface settlements and planned cutterhead maintenance.</p>","PeriodicalId":39412,"journal":{"name":"Geomechanik und Tunnelbau","volume":"17 4","pages":"276-288"},"PeriodicalIF":0.0,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141344616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dipl.-Ing. Dr.techn. Adrian Kainrath, Dipl.-Ing. Johann Hechenbichler, Dipl.-Ing. Jörg Friedrich, Dipl.-Ing. Christoph Ortner
{"title":"Grouting measures for grout curtain strengthening under complex geological boundary conditions\u0000 Injektionsmaßnahmen zur Ertüchtigung eines Dichtschirms unter komplexen geologischen Randbedingungen","authors":"Dipl.-Ing. Dr.techn. Adrian Kainrath, Dipl.-Ing. Johann Hechenbichler, Dipl.-Ing. Jörg Friedrich, Dipl.-Ing. Christoph Ortner","doi":"10.1002/geot.202400010","DOIUrl":"https://doi.org/10.1002/geot.202400010","url":null,"abstract":"","PeriodicalId":39412,"journal":{"name":"Geomechanik und Tunnelbau","volume":"17 3","pages":"195-211"},"PeriodicalIF":0.0,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141326605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Preview: Geomechanics and Tunnelling 4/2024","authors":"","doi":"10.1002/geot.202480398","DOIUrl":"https://doi.org/10.1002/geot.202480398","url":null,"abstract":"","PeriodicalId":39412,"journal":{"name":"Geomechanik und Tunnelbau","volume":"17 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/geot.202480398","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141326608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Content: Geomechanics and Tunnelling 3/2024","authors":"","doi":"10.1002/geot.202480311","DOIUrl":"https://doi.org/10.1002/geot.202480311","url":null,"abstract":"","PeriodicalId":39412,"journal":{"name":"Geomechanik und Tunnelbau","volume":"17 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/geot.202480311","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141326610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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