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Analysis of the settlement of an existing tunnel induced by shield tunneling underneath
Tunnelling and Underground Space Technology, 2018Due to the increasing development of infrastructure systems in urban areas of China, many subway tunnels are being constructed near existing subway lines.
Dalong Jin +3 more
semanticscholar +1 more source
TUNNELS - TUNNEL BORING MACHINES.
Proceedings of the Institution of Civil Engineers - Civil Engineering, 1994This paper begins by describing the requirements for the tunnelling machines used in the construction of the Channel Tunnel. Five machines were used, three on the marine tunnels and two on the land tunnels. The description is then developed, distinguishing between the types of machines working under the sea and those under land.
H BARTHES +12 more
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Tunnelling and Underground Space Technology, 2018
Earth pressure balanced shield machine (EPBS) is widely adopted for metro tunnel construction in urban areas. Support pressure on excavation face and grouting at the EPBS tail are the main measures to control the ground disturbance and settlement.
F. Meng, Ren-peng Chen, X. Kang
semanticscholar +1 more source
Earth pressure balanced shield machine (EPBS) is widely adopted for metro tunnel construction in urban areas. Support pressure on excavation face and grouting at the EPBS tail are the main measures to control the ground disturbance and settlement.
F. Meng, Ren-peng Chen, X. Kang
semanticscholar +1 more source
Current Opinion in Structural Biology, 2001
TolC and its many homologues comprise an alpha-helical transperiplasmic tunnel embedded in the bacterial outer membrane by a contiguous beta-barrel channel, providing a large exit duct for diverse substrates. The 'channel-tunnel' is closed at its periplasmic entrance, but can be opened by an 'iris-like' mechanism when recruited by substrate-engaged ...
V, Koronakis, C, Andersen, C, Hughes
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TolC and its many homologues comprise an alpha-helical transperiplasmic tunnel embedded in the bacterial outer membrane by a contiguous beta-barrel channel, providing a large exit duct for diverse substrates. The 'channel-tunnel' is closed at its periplasmic entrance, but can be opened by an 'iris-like' mechanism when recruited by substrate-engaged ...
V, Koronakis, C, Andersen, C, Hughes
openaire +2 more sources
2001
Presents each tunnel syndrome in a separate chapter and includes anatomy, etiology, clinical signs and symptoms, treatment, and references Stresses the importance of a thorough history and physical examination as the key to obtaining the correct diagnosis Provides an overview of the definition, anatomy, etiology, clinical symptoms and signs, and ...
Pećina, Marko +2 more
openaire +3 more sources
Presents each tunnel syndrome in a separate chapter and includes anatomy, etiology, clinical signs and symptoms, treatment, and references Stresses the importance of a thorough history and physical examination as the key to obtaining the correct diagnosis Provides an overview of the definition, anatomy, etiology, clinical symptoms and signs, and ...
Pećina, Marko +2 more
openaire +3 more sources
Journal of the American Chemical Society, 2015
Matrix-isolation experiments near 3 K and state-of-the-art quantum chemical computations demonstrate that oxalic acid [1, (COOH)2] exhibits a sequential quantum mechanical tunneling phenomenon not previously observed. Intensities of numerous infrared (IR) bands were used to monitor the temporal evolution of the lowest-energy O-H rotamers (1cTc, 1cTt ...
Peter R, Schreiner +8 more
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Matrix-isolation experiments near 3 K and state-of-the-art quantum chemical computations demonstrate that oxalic acid [1, (COOH)2] exhibits a sequential quantum mechanical tunneling phenomenon not previously observed. Intensities of numerous infrared (IR) bands were used to monitor the temporal evolution of the lowest-energy O-H rotamers (1cTc, 1cTt ...
Peter R, Schreiner +8 more
openaire +2 more sources
Tunnelling time and tunnelling dynamics
International Reviews in Physical Chemistry, 2007The concept of ‘tunnelling time’ in the context of quantum particle tunnelling is reviewed. Various suggestions of linking the tunnelling dynamics with a characteristic time (real or complex) like the phase time, barrier interaction time (bounce time), presence time, etc. are analysed. A simple but fully quantal method of defining and estimating a real
Kaushik Maji +2 more
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Tunnel Safety Concept Koralm Tunnel
Geomechanics and Tunnelling, 2008AbstractThe 32.8 km long Koralm tunnel requires specific measures to guarantee a sufficient safety level. The methodology applied to define safety measures for this very long tunnel is on the one hand based on a set of guidelines and on the other hand based on the specific boundary conditions of this tunnel.
Christof Neumann +3 more
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Theory of the scanning tunneling microscope.
Physical Review B (Condensed Matter), 1985J. Tersoff, D. Hamann
semanticscholar +1 more source
1997
Presents each tunnel syndrome in a separate chapter and includes anatomy, etiology, clinical signs and symptoms, treatment, and references Stresses the importance of a thorough history and physical examination as the key to obtaining the correct diagnosis Provides an overview of the definition, anatomy, etiology, clinical symptoms and signs, and ...
Pećina, Marko +1 more
openaire
Presents each tunnel syndrome in a separate chapter and includes anatomy, etiology, clinical signs and symptoms, treatment, and references Stresses the importance of a thorough history and physical examination as the key to obtaining the correct diagnosis Provides an overview of the definition, anatomy, etiology, clinical symptoms and signs, and ...
Pećina, Marko +1 more
openaire