Results 11 to 20 of about 2,596 (250)

Analysis of Ultimate Support Pressure for Deep Buried Shield Tunnel in Sand Soil

Advances in Civil Engineering
The 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, Yuan Wang, Qi Dong, Sijin Liu   +3 more
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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, Qinglong Zhang, Yanwen Zhu, Rui Ma, Sanlin Du, Kun Shao, Liujie Jing, Yongsheng Zhang, Qingbin Li   +8 more
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Method for calculating limit support pressure of face of shield tunnels considering principal stress axis rotation and soil arching effects in dry sand

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
doaj   +1 more source

Efficiency investigation of mitigation effect of isolation piles on tunneling-induced ground settlements

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, CAO Liqiang, SU Dong, CHEN Xiangsheng   +3 more
doaj   +1 more source

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
Yue Jiang, Wendong Zou
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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, Qingrui Lu, Shijun Chen, Renhui Dai, Jinhe Gao, Xiaoyi Jiang   +5 more
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Research on the Algorithm for Composite Lining of Deep Buried Water Conveyance Tunnel [PDF]

Advances in Civil Engineering, 2021
Composite lining of deep buried water conveyance tunnel for bearing high internal water pressure is a new type of applicable structure. However, up to date, no effective method is available to calculate the stress of the structure. In this paper, a simplified algorithm, which can be used to calculate the stress distribution of composite lining ...
Fei Li, Ningdong Chang, Jianhui Wang, Tao Feng, Chunling Li   +4 more
openaire   +2 more sources

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
doaj   +1 more source

Three-dimensional upper bound limit analysis of deep soil tunnels based on nonlinear Mohr-Coulomb criterion

Yantu gongcheng xuebao, 2019
When the surrounding rock conditions are poor, the buried earth tunnel is prone to collapse during the tunnel excavation process. It is extremely important to accurately predict the extent of the collapsed soil in the deep buried soil tunnel.
YU Li 1,2, LÜ Cheng 1,2, WANG Ming-nian 1,2
doaj   +1 more source