Results 111 to 120 of about 39,465 (265)

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

Tectonic geomorphological evidence of late Quaternary segmented activity along the northern margin fault of Lajishan

Dizhi lixue xuebao
Objective  The Lajishan–Jishishan orogenic belt represents a significant arc-shaped tectonic zone formed by northeastward compressional expansion along the northeastern margin of the Tibetan Plateau, jointly controlled by two compressional thrust fault ...
ZHANG Lijun, YUAN Daoyang, LI Hongqiang, SU Qi, SU Ruihuan, CHEN Yanwen, WEN Yameng   +6 more
doaj   +1 more source

Tertiary tectonics and sedimentation history of the Sarawak basin, east Malaysia [PDF]

, 1996
A seismic stratigraphic study of the regional lines for the offshore Sarawak area was undertaken with the aim of understanding the tectonics and sedimentation history of the hydrocarbon prolific Sarawak Basin.
Zin, Ismail Che Mat
core  

Neogene tectonic evolution of the Neuquén Andes western flank (37–39°S)

, 2006
This paper integrates data to summarize the evolution of the 37-39°S segment of the Andean margin from the Miocene to Present. The western Neuquén Andes represent a transitional segment between the high, broad Central Andes and the low, narrow Patagonian
M. Rosenau, H. Echtler, D. Melnick, A. Folguera, Folguera Telichevsky, Andres, Melnick, D., Echtler, H., Rosenau, M.   +7 more
core   +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

Tectonic evolution of the Nootka fault zone and deformation of the shallow subducted Explorer plate in northern Cascadia as revealed by earthquake distributions and seismic tomography. [PDF]

Sci Rep, 2023
Hutchinson J, Kao H, Riedel M, Obana K, Wang K, Kodaira S, Takahashi T, Yamamoto Y.   +7 more
europepmc   +1 more source

Advancing mine pillar design: Evaluating traditional methods and integrating AI for enhanced stability of pillars in the Great Dyke, Zimbabwe

Deep Underground Science and Engineering, EarlyView.
B1 is bord width 1, B2 is bord width 2, L is the pillar length, W is the pillar width, red color and letter A represent the pillars, and white color and number 1 represent excavated areas. Pstress is the average pillar stress; σv is the vertical component of the virgin stress, MPa; and e is the areal extraction ratio. e = B o B o + B P ${\rm{e}}=\frac{{
Tawanda Zvarivadza, Hendrik Grobler, Peter Apata Olubambi, Moshood Onifade, Manoj Khandelwal   +4 more
wiley   +1 more source

Long term morphotectonic evolution of the Southern Apennines

, 2009
The main goal of this work is the study of the morphological and morphometrical features of the Southern Apennines thrust belt – foredeep system, carrying out both a large scale and a small scale analyses of areas of high relevance, with the aim to ...
Valente, Ettore
core  

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

The Protracted Evolution of a Plate Boundary: Eastern Cuba Block and Old Bahamas Channel

Geochemistry, Geophysics, Geosystems
The Eastern Cuban block has experienced a complex tectonic history characterized by plate interactions, resulting in a diverse array of geological features observable in the offshore sedimentary record.
A. Oliviera de Sá, S. Leroy, E. d’Acremont, S. Lafuerza, J.‐L. Granja‐Bruña, B. Moreno, V. Cabiativa Pico, J. Letouzey   +7 more
doaj   +1 more source