Results 241 to 250 of about 19,231,090 (300)

Integration of geophysical and remote sensing data for structural analysis and delineation of gold, fluorite, and barite mineralization in the Dawi shear belt, Egypt. [PDF]

Sci Rep
Eldosouky AM, El-Wahed MAA, Attia M, El-Qassas RAY, Eldeeb MA, Atef M, Aly N.   +6 more
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

Coalbed Methane Reservoir Characterization and Geological Modeling: A Case Study of Block A in the Shenfu Gas Field, Eastern Margin of the Ordos Basin. [PDF]

ACS Omega
Yang D, Tian Y, Fang M, Bai Y, Qi Y, Liu F, Feng R, Lu H.   +7 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

Integrated dry hole, seismic, and structural analysis improves hydrocarbon exploration in the Egyptian Northern Red Sea basin. [PDF]

Sci Rep
Eid AM, Hassan M, Amer M, Mabrouk WM, Metwally A.   +4 more
europepmc   +1 more source

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

Deep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu, Wei Qiao, Xianggang Cheng, Xiangsheng Meng, Peichao Feng   +4 more
wiley   +1 more source

Multi-Sensor Geometric Documentation of Cultural Heritage at Risk Across Inland, Coastal and Shallow-Water Environments. [PDF]

Sensors (Basel)
Verykokou S, Ioannidis C, Potsiou C, Soile S, Tokmakidis K, Papadimitriou K, Tokmakidis P, Tourtas A, Martino S, Grechi G, Themistocleous K, Królewicz S, Rączkowski W, Holzer J, Bosch E, Nguyen D, Langenegger F, Plattner S, Bilis T, Sokolicek A, Gschwind M, Lettmann D, Oniszczuk A.   +22 more
europepmc   +1 more source

Shock wave propagation characteristics of aluminum‐containing explosive in corrugated steel‐lined tunnel

Deep Underground Science and Engineering, EarlyView.
Aluminum‐enhanced afterburning renders AE explosives more hazardous than conventional ones. Corrugated steel linings reduce far‐field AE blast overpressure by ~50% through wave reflection and dissipation. The developed model accurately predicts peak pressure (<10% error) and arrival time (<3% error), supporting protective design.
Zhen Wang, Jiayu Peng, Hujun Li, Yuguo Ji, Shuobiao Li, Guokai Zhang   +5 more
wiley   +1 more source

Mechanistic insights across curing regimes for enzymatic and biopolymer‐optimized reinforcement in rock masses

Deep Underground Science and Engineering, EarlyView.
This study examines the effects of curing temperature on the mechanical behavior of underground rock masses treated with enzyme‐induced calcite precipitation (EICP) and an innovative biopolymer‐modified EICP (BP‐EICP). Abstract Biocementation is an innovative and sustainable technique for reinforcing weak and weathered rock masses in natural and ...
Mary C. Ngoma, Oladoyin Kolawole
wiley   +1 more source

Fault detection in seismic data using a true 3D global attention convolutional network with self-supervised denoising pretext training. [PDF]

Sci Rep
Mahzad M, Bagheri M.
europepmc   +1 more source