Results 151 to 160 of about 3,062,426 (294)

Dynamic prediction of coal and gas outburst risk based on quantitative analysis of stress–energy evolution and adaptive correction

Deep Underground Science and Engineering, EarlyView.
This study quantitatively analyzed the spatiotemporal evolution of stress redistribution ahead of the working face by integrating coal seam distribution, tectonic stress anomalies, gas pressure, and mining‐induced disturbances. An R‐value criterion for coal and gas outburst (CGO) risk assessment was established based on energy principles.
Yingjie Zhao, Xueqiu He, Dazhao Song, Liming Qiu, Minggong Guo, Jie Liu, Qiang Liu, Yi Zhu   +7 more
wiley   +1 more source

Reconstruction of Tectonic Stress Magnitude of the Yanshanian Period in the Pingdingshan Mining Area by Using the Microstructural Estimation Method. [PDF]

ACS Omega
Chuai X, Shu L, Huo Z.
europepmc   +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

Role of tectonic stress and topography on repeated lateral dikes: application to the 1975-1984 Krafla and 2023-2025 Svartsengi rifting episodes in Iceland. [PDF]

Bull Volcanol
Yang Y, Sigmundsson F, Geirsson H, Gottsmann J.   +3 more
europepmc   +1 more source

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

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 failure mechanism and energy dissipation law of single fissured coal in different tectonic stress areas. [PDF]

Sci Rep
Lan T, Liu Y, Wang F, Wu G, Li Z, Ling X, Zhang C, Liu G, Feng W.   +8 more
europepmc   +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

Determination of mine fault activation degree and the division of tectonic stress hazard zones. [PDF]

Sci Rep
Lan T, Liu Y, Yuan Y, Fang P, Ling X, Zhang C, Li Y, Li Y, Feng W.   +8 more
europepmc   +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