Results 21 to 30 of about 13,974 (295)
Geofluids, 2022 Taking China’s first application of domestic shield tunneling in a water-rich sand layer for crossing a high-speed railway as research background, the influence of changes in the shield tunneling parameters on ground settlement is analyzed based on field
Yuan Mei +5 more
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Unstuck Technology for EPB/TBM Dual Mode Shield Machine Stuck in Rock Stratum
Chengshi guidao jiaotong yanjiu［Objective］ During the tunneling process of the EPB (earth pressure balance shield machine)/TBM (full-face hard rock tunnel boring machine) dual-mode shield tunneling machine, problems such as excessive wear of the cutting tools and improper setting of ...
DUAN Yueqiang
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Observation of quantum capacitance in the Cooper-pair transistor [PDF]
, 2005 We have fabricated a Cooper-pair transistor (CPT) with parameters such that for appropriate voltage biases, the sub-gap charge transport takes place via slow tunneling of quasiparticles that link two Josephson-coupled charge manifolds.
C. Wilson +9 more
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Amplifier for scanning tunneling microscopy at MHz frequencies
, 2018 Conventional scanning tunneling microscopy (STM) is limited to a bandwidth of circa 1kHz around DC. Here, we develop, build and test a novel amplifier circuit capable of measuring the tunneling current in the MHz regime while simultaneously performing ...
Allan, M. P. +6 more
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Radiation correction to astrophysical fusion reactions and the electron screening problem [PDF]
, 2002 We discuss the effect of electromagnetic environment on laboratory measurements of the nuclear fusion reactions of astrophysical interest. The radiation field is eliminated using the path integral formalism in order to obtain the influence functional ...
A. B. Balantekin +26 more
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Chengshi guidao jiaotong yanjiu[Objective] In thick silty clay layers, the disturbance caused by shield tunneling is affected by multiple factors such as strata conditions and construction parameters.
LI Liang +4 more
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Experimental investigation and limit analysis of shield tunnel face failure mechanism in sand
Underground SpaceShield tunneling in urban underground space necessitates tight control over support pressure at the tunnel face and a thorough insight into ground collapse mechanisms.
Mengzhe Huo +5 more
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Energy-level quantization in YBa2Cu3O7-x phase-slip nanowires
, 2019 Significant progress has been made in the development of superconducting quantum circuits, however new quantum devices that have longer decoherence times at higher temperatures are urgently required for quantum technologies.
Dunin-Borkowski, R. E. +6 more
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Applied SciencesGiven the complex mechanism of surface settlement induced by shield tunneling, accurate prediction of surface settlement and rational design of tunneling parameters are critical for ensuring safe and efficient tunneling operations.
Shisen Zhao, Xianda Feng, Kefeng Peng
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The behaviour of a two-component backfilling grout used in a Tunnel-Boring Machine [PDF]
, 2011 The instantaneous filling of the annulus that is created behind the segment lining at the end of the tail during the TBM advance is an operation of paramount importance.
Borio, Luca +2 more
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