Results 11 to 20 of about 45,835 (296)

Experimental study on the effect of flexible joints of a deep-buried tunnel across an active fault under high in-situ stress conditions

Underground Space
During dislocation, a tunnel crossing the active fault will be damaged to varying degrees due to its permanent stratum displacement. Most previous studies did not consider the influence of the tunnel’s deep burial and the high in-situ stress, so the ...
Jiawei Zhang, Zhen Cui, Qian Sheng, Wanhua Zhao, Liang Song   +4 more
doaj   +3 more sources

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
openaire   +2 more sources

Analytical Solutions of Steady a Seepage Field for Deep-Buried Tunnel with Grouting Ring Considering Anisotropic Flow

Journal of Marine Science and Engineering, 2022
Difficulties related to seepage are frequently encountered in tunnel design and construction, especially in deep-buried tunnels. Nowadays, analytical solutions of steady seepage fields for deep-buried tunnel usually assume that the surrounding rock mass ...
Qizhi Chen, Luju Liang, Baoping Zou, Changjie Xu, Bowen Kong, Jingyuan Ma   +5 more
doaj   +1 more source

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
doaj   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

Stress and Displacement of Deep‐Buried Composite Lining Tunnel under Different Contact Conditions

Mathematical Problems in Engineering, 2023
Stress and displacement of the composite lining are important factors to be considered during tunnel design. By the complex variable method, analytical solutions for stress and displacement of surrounding rock, primary support and secondary lining satisfying the interface continuity and boundary conditions under far‐field stresses are derived.
Shuhong Liu, Jiajun Duan, Jinlu Fan, Yongquan Zhu   +3 more
openaire   +1 more source

Research on Prediction of TBM Performance of Deep-Buried Tunnel Based on Machine Learning

Applied Sciences, 2022
Based on the relevant data in the construction process of the south of the Qinling tunnel of the Hanjiang-to-Weihe River Diversion Project, this article obtains the main influencing factors of the tunnel boring machine (TBM) performance of the deep ...
Tianhui Ma, Yang Jin, Zheng Liu, Yadav Kedar Prasad   +3 more
doaj   +1 more source