Results 241 to 250 of about 5,782,796 (306)

The saline groundwater legacy of a large buried coastal paleo-estuary. [PDF]

Nat Commun
Minsley BJ, Michael HA, Lindaman MA, Ball LB, James SR, Rigby JR, Kress WH, Tsai FT, Hoogenboom BE.   +8 more
europepmc   +1 more source

A rock brittleness index based on the postpeak energy release rate and damage surface characteristics for brittle hard rock

Deep Underground Science and Engineering, EarlyView.
This study examines energy evolution in rock rupture via triaxial direct shear tests, exploring the impact of confining pressure and temperature on fracture surface randomness. A novel energy‐based brittleness index is proposed, validated experimentally, and compared with existing methods for reliability and accuracy.
Biao Wang, Zaobao Liu, Jing Xue, Bo Lu, Wei Zeng, Dengke Zhang   +5 more
wiley   +1 more source

A Comprehensive Risk Assessment Framework for Groundwater Quality: Integrating Natural Background Levels, Threshold Values, and Machine Learning-Based Hydrochemical Facies Classification. [PDF]

Water Environ Res
Amiri V, Li P, Torabi-Kaveh M.
europepmc   +1 more source

Study on the composite fracture characteristics of filling and reinforcing cracked rock mass after high temperature damage

Deep Underground Science and Engineering, EarlyView.
Cement infill shares compressive and shear stresses during loading, while interfacial friction hinders crack propagation and reduces stress concentration, improving the rock's load‐bearing capacity. Failure modes vary with crack inclination. Unfilled specimens show four modes.
Shihao Yuan, Qiang Sun, Jianjun Hu, Liwei Zhang, Jishi Geng   +4 more
wiley   +1 more source

Corrosion Resistance of Sn-58Bi and Sn-65.7Bi-2.3Sb Low-Melting Alloys in Simulated Geological CO₂ Sequestration Environments. [PDF]

ACS Omega
Liu G, Jia M, Zha C, Wang W.
europepmc   +1 more source

Modeling and experimental validation of bolt–grout bond–slip behavior for deep underground excavation support

Deep Underground Science and Engineering, EarlyView.
A novel shear‐lag model, validated by pull‐out tests, incorporates a constant bond stress stage to predict the complete load–displacement response of grouted rock bolts, providing a new tool for optimizing anchorage length and material toughness in deep underground engineering. Abstract The stability of rock masses in deep underground excavations, such
Wenhui Bian, Xiaohui He, Kexue Wang, Yufei Wu, Guoxin Wang, Shaochen Zhang, Jun Yang   +6 more
wiley   +1 more source

Review of Formation Damage Assessment for CO₂ Injection and Storage. [PDF]

ACS Omega
Sagandykova D, Kakharov I, Aitkazy S, Khanjani M, Pourafshary P, Kamal MS, Kalam S.   +6 more
europepmc   +1 more source

Analytical stress solution framework for lined compressed air energy storage chambers and its application to safe burial depth determination and supporting effectiveness evaluation

Deep Underground Science and Engineering, EarlyView.
An analytical framework delivers a closed‐form stress solution for lined compressed air energy storage chambers, enabling the determination of the minimum safe burial depth. The solution quantitatively evaluates lining support effectiveness, offering a reliable tool for chamber design and optimization.
Zeyuan Sun, Cheng Zhao, Jinquan Xing, Qinyuan Luo   +3 more
wiley   +1 more source

Litho-structural mapping using remote sensing, petrographic characterization, and SEM/EDX mineralization analysis: insights from the Arabian-Nubian Shield. [PDF]

Sci Rep
El-Awny H, Abdel-Rahman AM, Abd El-Wahed MA, Hamed HG, Fahmy W, El-Sherif A, Csámer Á, Shebl A.   +7 more
europepmc   +1 more source