Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Erich Pimentel"'
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 15, Iss 9, Pp 2224-2237 (2023)
The 57-km long, new Gotthard Base Tunnel (GBT) crosses over a 1.1-km long stretch containing kakirites, i.e. weak rocks which, depending on the degree of tectonisation, may exhibit severe squeezing behaviour upon tunnel excavation. This tunnel stretc
Externí odkaz:
https://doaj.org/article/3c459602281e4b2d969da85c44e69854
Autor:
Erich Pimentel, Georg Anagnostou
Publikováno v:
Tunnels and Underground Cities: Engineering and Innovation meet Archaeology, Architecture and Art ISBN: 9781003031628
Tunnels and Underground Cities: Engineering and Innovation meet Archaeology, Architecture and Art ISBN: 9780429424441
Tunnels and Underground Cities: Engineering and Innovation meet Archaeology, Architecture and Art ISBN: 9780429424441
The paper presents the static and thermal design of an artificial ground freezing (AGF) measure with brine for an access tunnel of a railway station in central Switzerland. The geology of the first 45 m of the access tunnel consist of sediments (silt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce2554de4ff6224c6d169619b7d9c735
https://doi.org/10.1201/9781003031628-24
https://doi.org/10.1201/9781003031628-24
Autor:
Erich Pimentel
Publikováno v:
Grundbau-Taschenbuch
Publikováno v:
Energy Procedia. 76:87-95
Swelling anhydritic rock can cause severe damage to tunnels. Even though this phenomenon was first observed more than a century ago, many knowledge gaps persist concerning the swelling mechanisms caused by the transformation from anhydrite to gypsum.
Publikováno v:
Proceedings of the Institution of Civil Engineers - Geotechnical Engineering. 166:280-298
The method of artificial ground freezing was employed to ensure stability and waterproofing of the platform and escalator tunnels in the Università station of the Naples underground. The paper presents the temperature histories monitored within the
Publikováno v:
Rock Mechanics and Rock Engineering
Rock Mechanics and Rock Engineering, 46 (5)
Rock Mechanics and Rock Engineering, 46 (5)
The proposed Gibraltar Strait tunnel will cross two zones with breccia consisting of a chaotic mixture of blocks and stones embedded in a clay matrix. The breccia is saturated, has a high porosity and exhibits poor mechanical properties in the range
Autor:
Erich Pimentel, Georgios Anagnostou
Publikováno v:
geotechnik. 35:83-93
Klassifikationen aufgrund von Indexwerten wie Q oder RMR, die sich aus der Multiplikation oder Addition verschiedener physikalischer Parameter oder gar Bewertungen ergeben, durfen weder zur Beurteilung des Gebirgsverhaltens beim Vortrieb noch zur Fes
Publikováno v:
Géotechnique. 62:227-241
A high seepage-flow velocity represents a potential problem for artificial ground freezing (AGF), as it may hinder the growth of an ice body and the development of a closed ice wall. To avoid such difficulties, careful thermal hydraulic analysis is n
Publikováno v:
Tunnelling and Underground Space Technology. 28:57-69
The artificial ground freezing method is often used for ground improvement in urban tunnelling through water bearing soft ground. The paper presents and quantitatively analyses results from the monitoring of three challenging applications of artifici
Publikováno v:
Geomechanics and Tunnelling. 3:567-572
Sulphatic claystones exhibit a heavily swelling behaviour and are among the most problematic rocks for tunnelling. Their swelling is usually attributed to the transformation of anhydrite to gypsum. The paper questions this simplistic hypothesis throu