Results 11 to 20 of about 2,621 (249)
Study on construction mechanic characteristics and construction optimization of super-large cross-section tunnel portal under shallow buried depth and asymmetrical loading: A case study in Southwest China. [PDF]
PLoS ONEThe excavation of the super-large cross-section tunnel portal section is prone to causing serious engineering distresses. The key factors to ensure the safe construction of portal section are to clarify the construction mechanic characteristics and ...
Hao Chen +4 more
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Analysis of Ultimate Support Pressure for Deep Buried Shield Tunnel in Sand Soil
Advances in Civil EngineeringThe reasonable setting of support pressure stands as an important factor in ensuring the stability of the shield tunnel excavation face. Due to the presence of the soil arching effect, the methodology for definitively establishing the ultimate support ...
Minkang Li +3 more
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Prediction and classification technology of rockburst hazard in deep buried and high in-situ stress tunnel. [PDF]
Sci RepWith the increasing number of deep-buried tunnel constructions in China, the possibility of rockburst hazard during tunnel construction in high-stress, hard rock environments also rises. The stress inversion method is initially employed to determine the stress characteristics along the tunnel axis to provide the basis for predicting rockburst hazards ...
Li H, Yang Y, Zhang Z, Tang L.
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Intelligent tunnelling robot system for deep-buried long tunnels
Frontiers in Earth Science, 2023 Existing tunnel boring machine (TBM) construction presents certain shortcomings. These include difficulty in comprehensive perception of information, poor timelines of information transmission and storage systems, significant effects of traditional data processing methods on the timeless of intelligent decision-making, and poor applicability of ...
Qinglong Zhang +8 more
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Yantu gongcheng xuebao, 2023 For the deep-buried shield tunnels in dry cohesionless soils, it is critical to determine the support pressure acting on the tunnel face due to the significant soil arching effects.
ZHANG Yu 1, 2, TAO Lianjin 2, LIU Jun 1, ZHAO Xu 2, GUO Fei 3, BIAN Jin 4
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Shenzhen Daxue xuebao. Ligong ban, 2022 In order to study the control efficiency of isolation pile on the settlement of the surface and deep soil, we analyze the implementation method of simulated isolation pile in Plaxis2d, and establish the finite element model of the tunnel and isolation ...
ZHENG Zhenji +3 more
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Study of Mechanical Response of Tunnels Crossing Active Faults in Different Burial Depths
Buildings, 2023 There are numerous tunnels worldwide that cross active fault zones. These tunnels are situated in complex geological environments and are subjected to intense seismic activities. When active fault zones experience displacement, tunnels are susceptible to
Jiawei Zhang, Wanhua Zhao, Zhen Cui
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Sensitivity Analysis of Factors Affecting the Stability of Deep Buried Tunnel
Sustainability, 2022 The excavation of deep tunnels has significant spatial and temporal effects on the stress distribution of the surrounding rock. Accurately describing the distribution characteristics of the surrounding rock stress state is a key issue in analyzing the failure mechanism of the surrounding rock. Based on the numerical analysis, a study on the influencing
Jiang, Yue, Zou, Wendong
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Construction Method of Deep - Buried Long - Length Tunnel
IOP Conference Series: Earth and Environmental Science, 2020 Abstract Grew up to solve the deep buried tunnels in the process of large diameter TBM excavation overexcavation problems and obstacles in a complex geological environment problems such as TBM, through the combination of drilling and blasting method and TBM at home and abroad were elaborated the expansion digging method of construction ...
Ping Li +5 more
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Pressure of surrounding rock of deep-buried loess shield tunnel
Yantu gongcheng xuebao, 2021 With the development of shield tunnel engineering, more and more deep-buried loess shield projects have gradually appeared. The calculation of pressure of the surrounding rock is of great significance to the design of linings and safety evaluation during
HAN Xing-bo 1, 2, YE Fei 1, 2, FENG Hao-lan 1, HAN Xin 1, TIAN Chong-ming 1, LEI Ping 1
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