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measures on displacement and stress field of surrounding rock in tunnels crossing active strike-slip faults

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0966-x

Abstract: concrete-to resist fault dislocation in the surrounding rock near tunnels crossing active strike-slip faultsgrouting area changed from shear stress in the fault slip direction to tensile stress in the axial tunnelmeasures, can form an artificial safety island at the cross-fault position of the rock mass to protect the tunnelresults provide a new supporting idea for the surrounding rock of tunnels crossing active strike-slip faults

Keywords： anti-fault effect     engineering measures     LRAF method     stress and displacement field     tunnel-crossingactive faults    

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Condition monitoring of a wind turbine generator using a standalone wind turbine emulator

Himani,Ratna DAHIYA

Frontiers in Energy 2016, Volume 10, Issue 3,   Pages 286-297 doi: 10.1007/s11708-016-0419-5

Abstract: open source technology from graze required for the condition monitoring to diagnose rotor and stator faultselectric subassemblies direct drive WTs are most susceptible to damage in practice, generator winding faults

Keywords： (WTE)     wind turbine generator (WTG)     maximum power point tracking (MPPT)     tip speed ratio (TSR)     rotor faults     stator faults    

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A multi-sensor relation model for recognizing and localizing faults of machines based on network analysis

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0736-9

Abstract: Second, the localization for multi-source faults is seldom investigated, although locating the anomalyvariable over multivariate sensing data for certain types of faults is desirable.

Keywords： fault recognition     fault localization     multi-sensor relations     network analysis     graph neural network    

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A new and best approach for early detection of rotor and stator faults in induction motors coupled to

Abderrahim ALLAL,Boukhemis CHETATE

Frontiers in Energy 2016, Volume 10, Issue 2,   Pages 176-191 doi: 10.1007/s11708-015-0386-2

Abstract: proposed which was endowed with a dominant sensitivity in the case in which there would be rotor or stator faults

Keywords： induction motor     incipient broken bar     extended Park’s vector approach     spectral analysis     inter-turn short-circuit     Hilbert transform    

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Identification of faults through wavelet transform vis-à-vis fast Fourier transform of noisy vibration

Deepak PALIWAL,Achintya CHOUDHURY,T. GOVANDHAN

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 2,   Pages 130-141 doi: 10.1007/s11465-014-0298-6

Abstract:

Fault diagnosis of rolling element bearings requires efficient signal processing techniques. For this purpose, the performances of envelope detection with fast Fourier transform (FFT) and continuous wavelet transform (CWT) of vibration signals produced from a bearing with defects on inner race and rolling element, have been examined at low signal to noise ratio. Both simulated and experimental signals from identical bearings have been considered for the purpose of analysis. The bearings have been modeled as spring-mass-dashpot systems and the simulated signals have been obtained considering transfer functions for the bearing systems subjected to impulsive loads due to the defects. Frequency B spline wavelets have been applied for CWT and a discussion on wavelet selection has been presented for better effectiveness. Results show that use of CWT with the proposed wavelets overcomes the short coming of FFT while processing a noisy vibration signals for defect detection of bearings.

Keywords： Fault detection     spline wavelet     continuous wavelet transform     fast Fourier transform    

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Research on Demarcating Method for Deep Tunnel and Shallow Tunnel in Soil

Zhao Zhanchang,Xie Yongli

Strategic Study of CAE 2005, Volume 7, Issue 10,   Pages 84-86

Abstract:

Directed against the demarcating problems of deep tunnel and shallow tunnel in exiting methods, thefeasible by two engineering cases, and is of importantce to lining design and construction of soil tunnel

Keywords： soil tunnel     deep tunnel and shallow tunnel     demarcating method    

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Effect of cutterhead configuration on tunnel face stability during shield machine maintenance outages

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 4,   Pages 522-532 doi: 10.1007/s11709-023-0930-9

Abstract: Engineering safety during maintenance outages is determined by the stability of the tunnel face.The tunnel face is supported by a medium at the bottom of the excavation chamber and compressed air atDisregarding the supporting effect of the cutterhead will result in a tunnel face with underestimated

Keywords： tunnel face stability     cutterhead configuration     aperture ratio     pressure gradient     support ratio    

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Thinking about Future Plant Medicine Engineering

Gao Jinji

Strategic Study of CAE 2003, Volume 5, Issue 12,   Pages 30-35

Abstract: , it is possible to build a new theory of PME (Plant Medicine Engineering) to prevent and eliminate faultsSome common issues, such as the forming of diseases and faults, how to diagnose those diseases and faults, the deep rule concerning the causes and mechanisms of faults and diseases, comparison between curing

Keywords： plant medicine engineering     diseases     faults     prevention and cure    

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Bending failure performance of a shield tunnel segment based on full-scale test and numerical analysis

Frontiers of Structural and Civil Engineering   Pages 1033-1046 doi: 10.1007/s11709-023-0973-y

Abstract: This study focuses on the bending failure performance of a shield tunnel segment.

Keywords： shield tunnel     bearing capacity     failure mechanism     segment reinforcement    

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Discontinuous mechanical behaviors of existing shield tunnel with stiffness reduction at longitudinal

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 1,   Pages 37-52 doi: 10.1007/s11709-022-0920-3

Abstract: analytical model is proposed to estimate the discontinuous mechanical behavior of an existing shield tunnelabove a new tunnel.The existing shield tunnel is regarded as a Timoshenko beam with longitudinal joints.Timoshenko beam GA, and different additional pressure profiles on the responses of the shield tunnel

Keywords： tunnel–soil interaction     discontinuous analysis     longitudinal joints     existing shield tunnel     Timoshenko    

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A real-life stability model for a large shield-driven tunnel in heterogeneous soft soils

Xinyu HU, Zixin ZHANG, Scott KIEFFER

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 2,   Pages 176-187 doi: 10.1007/s11709-012-0149-7

Abstract: The current models that have been published to date only allow for homogeneous soil at the tunnel faceThis paper presents a real-life face stability model to determine the minimal pressure needed at the tunnelface for a large shield-driven tunnel in heterogeneous soft soils.are conducted, and the effects of the involved parameters for a large, multilayered, shield-driven tunnel

Keywords： analytical solution     shield-driven tunnel     multilayered soil     face stability    

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Construction risks of Huaying mount tunnel and countermeasures

Haibo YAO, Feng GAO, Shigang YU, Wei DANG

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 3,   Pages 279-285 doi: 10.1007/s11709-017-0414-x

Abstract: of collapse, gas explosion or gas outburst, water (mud) inrush, gas inrush because of existence of faults, high pressure gas, karst tectonics and coal goafs around the tunnel.

Keywords： tunnel?construction     gas?outburst     geology?prediction     automatic?monitoring?system    

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Technical innovation for Sanyang Road Cross-river Tunnel Project

Yu ZHONG

Frontiers of Engineering Management 2018, Volume 5, Issue 3,   Pages 411-415 doi: 10.15302/J-FEM-2018206

Abstract:

Keywords： valign=     top     class=     J_zhaiyao    

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Fast detection algorithm for cracks on tunnel linings based on deep semantic segmentation

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 5,   Pages 732-744 doi: 10.1007/s11709-023-0965-y

Abstract: semantic segmentation called LC-DeepLab is proposed for detecting the trends and geometries of cracks on tunnelThe proposed method addresses the low accuracy of tunnel crack segmentation and the slow detection speedThe experimental results show that LC-DeepLab can accurately segment and highlight cracks from tunnel

Keywords： tunnel engineering     crack segmentation     fast detection     DeepLabv3+     feature fusion     attention mechanism    

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Typical Underwater Tunnels in the Mainland of China and Related Tunneling Technologies

Kairong Hong

Engineering 2017, Volume 3, Issue 6,   Pages 871-879 doi: 10.1016/j.eng.2017.12.007

Abstract: made regarding the three potential great strait-crossing tunnels—the Qiongzhou Strait-Crossing Tunnel, Bohai Strait-Crossing Tunnel, and Taiwan Strait-Crossing Tunnel—and issues related to these great

Keywords： Underwater tunnel     Strait-crossing tunnel     Shield-bored tunnel     Immersed tunnel     Drill and blast    

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Title Author Date Type Operation

measures on displacement and stress field of surrounding rock in tunnels crossing active strike-slip faults

Journal Article

Condition monitoring of a wind turbine generator using a standalone wind turbine emulator

Himani,Ratna DAHIYA

Journal Article

A multi-sensor relation model for recognizing and localizing faults of machines based on network analysis

Journal Article

A new and best approach for early detection of rotor and stator faults in induction motors coupled to

Abderrahim ALLAL,Boukhemis CHETATE

Journal Article

Identification of faults through wavelet transform vis-à-vis fast Fourier transform of noisy vibration

Deepak PALIWAL,Achintya CHOUDHURY,T. GOVANDHAN

Journal Article

Research on Demarcating Method for Deep Tunnel and Shallow Tunnel in Soil

Zhao Zhanchang,Xie Yongli

Journal Article

Effect of cutterhead configuration on tunnel face stability during shield machine maintenance outages

Journal Article

Thinking about Future Plant Medicine Engineering

Gao Jinji

Journal Article

Bending failure performance of a shield tunnel segment based on full-scale test and numerical analysis

Journal Article

Discontinuous mechanical behaviors of existing shield tunnel with stiffness reduction at longitudinal

Journal Article

A real-life stability model for a large shield-driven tunnel in heterogeneous soft soils

Xinyu HU, Zixin ZHANG, Scott KIEFFER

Journal Article

Construction risks of Huaying mount tunnel and countermeasures

Haibo YAO, Feng GAO, Shigang YU, Wei DANG

Journal Article

Technical innovation for Sanyang Road Cross-river Tunnel Project

Yu ZHONG

Journal Article

Fast detection algorithm for cracks on tunnel linings based on deep semantic segmentation

Journal Article

Typical Underwater Tunnels in the Mainland of China and Related Tunneling Technologies

Kairong Hong

Journal Article