Results 21 to 30 of about 946 (225)

Stability analysis of TBM tunnel under unfavorable geological conditions of large dip faults

Meitan xuebao
Based on the Dali I section of the Central Yunnan Diversion Dali Tunnel Project, an indoor model test of TBM traversing faulted geological conditions under high ground stress was carried out using the self-developed miniature TBM tunneling integrated ...
Liming WANG
doaj   +1 more source

Tunnel boring machine cutterhead crack propagation life prediction with time integration method

Advances in Mechanical Engineering, 2019
Fatigue damage is one of the most common failure modes of large-scale engineering equipment, especially the full-face tunnel boring machine with characteristics of a thick plate structure bearing strong impact load.
Jianbin Li, Zhange Zhang, Zhichao Meng, Junzhou Huo, Zhaohui Xu, Jing Chen   +5 more
doaj   +1 more source

Numerical simulation of ground surface settlement of underpass building in tunnel boring machine double-line tunnels

Frontiers in Earth Science, 2022
Ground surface settlement under subway tunnel construction is one of the main sources of urban ground surface settlement, which may threaten the safety of existing buildings. Therefore, it is necessary to study the influence of subway tunnel construction
Ting Ren, Hailong Zhang, Yuancheng Guo, Yang Tang, Qinglin Li   +4 more
doaj   +1 more source

Research on multi-objective optimization method of Z-shaped pipeline structure based on Kriging model

Scientific Reports
Slurry pipeline transportation is widely used in dredging and serves as an essential method for conveying solid materials. However, accurately describing the interaction between slurry and particles through numerical simulations, while optimizing the ...
Chunya Sun, Zhengdong Xiao, Yanqiu Xiao, Zhifang Xu, Wanbin Cui, Pengpeng Wang, Zhanpeng Fang, Guangzhen Cui, Lianhui Jia   +8 more
doaj   +1 more source

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source

Two‐Dimensional Materials as a Multiproperty Sensing Platform

Advanced Functional Materials, EarlyView.
Various sensing modalities enabled and/or enhanced by two‐dimensional (2D) materials are reviewed. The domains considered for sensing include: 1) optoelectronics, 2) quantum defects, 3) scanning probe microscopy, 4) nanomechanics, and 5) bio‐ and chemosensing.
Dipankar Jana, Shubhrasish Mukherjee, Dmitrii Litvinov, Magdalena Grzeszczyk, Sergey Grebenchuk, Makars Šiškins, Virgil Gavriliuc, Yihang Ouyang, Changyi Chen, Yuxuan Ye, Meng Yiming, Maciej Koperski   +11 more
wiley   +1 more source

Rapid assembly bolt connection design method for TBM disc cutter box based on AHP

Advances in Mechanical Engineering
With the TBM disc cutter box as the subject of investigation, this study addresses the intricate and labor-intensive nature of the assembly process in TBM disc cutter box welding assembly.
Chunya Sun, Xuan Zhao, Yanqiu Xiao, Guangzhen Cui, Lianhui Jia, Shengquan Wu, Wei Zhang, Baoping Shang   +7 more
doaj   +1 more source

Evaluation of the applicability of earth pressure distribution and calculation methods for large-section quasi-rectangular shield tunnel in sandy stratum

Alexandria Engineering Journal
Based on a large-section quasi-rectangular shield tunnel project of Zhengzhou Metro Line 8, this study conducts a full-scale field experiment to investigate the influence of various construction loads on the external load of the tunnel structure during ...
Jing-kun Pi, Shi-ju Ma, Kai-rong Hong, Yong-gang Ding, Ya-jie Dang, Zhen-peng Chen   +5 more
doaj   +1 more source

Mesoporous Carbon Thin Films with Large Mesopores as Model Material for Electrochemical Applications

Advanced Functional Materials, EarlyView.
Mesoporous carbon thin films possessing 70 nm mesopores are prepared on titanium substrates by soft templating of resol resins with a self‐synthesized poly(ethylene oxide)‐block‐poly(hexyl acrylate) block copolymer. A strategy to avoid corrosion of the metal substrate is presented, and the films are extensively characterized in terms of morphology ...
Lysander Q. Wagner, Joshua Schober, Pascal Dippell, Chantal Glatthaar, Smail Mekhilef, David Schäfer, Hannes Hergert, Marcus Rohnke, Matthias T. Elm, Bernd M. Smarsly   +9 more
wiley   +1 more source

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

Advanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source