Results 91 to 100 of about 1,493 (263)

Analysis of lining force transmission coefficient and surrounding rock displacement in lined rock caverns for underground gas storage

Deep Underground Science and Engineering, EarlyView.
This study derives an explicit expression for the lining force transmission coefficient of underground gas storage lined rock caverns (LRCs) via the complex variable function method, considering the displacement release coefficient. Taking the 1‰ tensile strain of surrounding rock as the criterion to determine lining thickness, it systematically ...
Yaohui Li, Jianping Yang, Weizhong Chen
wiley   +1 more source

Predictive Modeling of Surface Subsidence Considering Different Environmental Risk Zones

Advances in Civil Engineering
Insufficient knowledge and control of the surrounding environmental risks in the process of subway tunnel construction will lead to different degrees of surface settlement during construction, and it is of practical significance to grasp the impact of ...
Yunsong Li, Yongjun Qin, Liangfu Xie, Yangchun Yuan, Jie Ran   +4 more
doaj   +1 more source

Mitigating surcharge‐induced column‐head cracking in double‐deck shield tunnels using hyperelastic bearing joints

Deep Underground Science and Engineering, EarlyView.
A staged three‐dimensional nonlinear soil–structure interaction (SSI) model is established, in which the initial geostress state, tunnel excavation, lining installation, delayed activation of the internal frame, and subsequent surcharge loading are simulated sequentially.
Xinyu Liu, Xiang Ci, Weizhong Chen, Jianping Yang   +3 more
wiley   +1 more source

Behaviour of the subway tunnel in Algiers

, 2007
Pred vsakim projektom za izgradnjo tunela je treba zaradi visokih stroškov izdelati manjšo modelno študijo ter jo po potrebi matematično preveriti. S tem se pri realizaciji projekta izognemo nepredvidljivim posledicam. Slednje upošteva tudi predstavljena raziskava, pri kateri smo na fizikalnem modelu v razmerju 1:20 eksperimentalno preučili obnašanje ...
Seriani, Abdelbaki, Serradj, Tayeb, Thésard, Y. Kismoune   +2 more
openaire   +2 more sources

Closed‐form stress solution and minimum safe burial depth correction for shallow‐buried large‐diameter energy storage chambers

Deep Underground Science and Engineering, EarlyView.
This study develops a closed‐form solution for stress analysis of shallow‐buried large‐diameter compressed air energy storage (CAES) chambers, explicitly incorporating free surface, lateral pressure, and gravity gradient effects. Validated against numerical simulations, the solution accurately captures stress redistribution and reveals upward migration
Zeyuan Sun, Cheng Zhao, Jinquan Xing
wiley   +1 more source

Waterproofing Technology of Underground Subway Tunnels

Journal of Architectural Research and Development
The waterproof construction of subway tunnels is a crucial and challenging aspect of subway tunnel engineering. Mastering excellent waterproof construction technology is essential to ensure that the construction meets design requirements and guarantees the safe operation of subway lines.
Ruiquan Liu, Jinxiao Jia, Xi Cheng
openaire   +1 more source

Developing a universal tunnel span classification from global tunnel databases

Deep Underground Science and Engineering, EarlyView.
A universal tunnel span classification system is introduced that incorporates tunnel span, cross‐sectional area, typical tunnel types, and intended uses. Representative flatness ratio values are also provided for each span class. The classification is derived from a comprehensive database of 450 tunnel profiles from 47 countries.
Simon Heru Prassetyo, Inzagi Suhendar, Semmy Andrew Anugerah Djawa Tagi, Bonifacio Bondan Satryojati, Dzakwan Naufal Pratama, Yeremia Sintong Damero, Yudhidya Wicaksana, Erwin Lim, Ridho Kresna Wattimena   +8 more
wiley   +1 more source

Study on the Influence of Tunnel Clearance on the Long-Term Settlement of Parallel Twin Subway Tunnels

Shock and Vibration
To investigate the effect of tunnel clearance on long-term soil settlement around tunnels under cyclic subway loading, a three-dimensional (3D) track–tunnel–soil coupling numerical model was established using MIDAS software, with Shanghai Metro Line 1 as
Chunling Yan, Guangshuai Wang, Biaowei Sang, Qian Lv, Zhongcai Lin, Shangyuan Chen   +5 more
doaj   +1 more source

Reinforcement learning‐enhanced adaptive sliding mode controller for underground articulated vehicles trajectory tracking

Deep Underground Science and Engineering, EarlyView.
RL‐SMC couples a reinforcement learning agent with a sliding mode controller, where the agent online‐modulates the sliding mode parameters according to the vehicle's tracking state. A curvature‐aware preview term is further embedded to shift control from reactive correction to proactive maneuvering, enabling the articulated vehicle to anticipate sharp ...
Haoqi Yan, Yi Ju, Boran Yang, Fei Ma, Jingliang Duan, Lifang Zheng   +5 more
wiley   +1 more source

Bio‐based tannin‐loaded layered double hydroxides in epoxy coatings for smart corrosion protection of steel in underground infrastructure

Deep Underground Science and Engineering, EarlyView.
This study presents a sustainable smart‐coating strategy for protecting underground steel infrastructures from chloride‐induced corrosion. Zinc‐aluminum layered double hydroxides (LDHs) and tannin‐loaded LDHs (LDH–TA) were incorporated into an epoxy matrix to provide both enhanced barrier properties and active, pH‐responsive inhibition.
Veerle Vandeginste, Xinyu Guo, Dawid Kasprzak, Yukun Ji   +3 more
wiley   +1 more source