Results 91 to 100 of about 306,561 (318)

Thermal‐induced fracture evolution and acoustic signature of Beishan granite: Insights into tensile strength of barrier system for high‐level radioactive waste disposal

Deep Underground Science and Engineering, EarlyView.
The tensile strength of granite, a proposed host for nuclear waste, degrades severely above 400°C. We link this to specific microcracking patterns captured by acoustic emission, establishing a scientific basis for assessing repository safety under thermal load.
Wei Zeng, Shijie Li, Xiaozhao Li, Zhen Huang, Shangtong Yang, Wentao Xu, Biao Wang, Yun Wu   +7 more
wiley   +1 more source

Influence of Error in Estimating Anisotropy Parameters on VTI Depth Imaging

International Journal of Geophysics, 2016
Thin layers in sedimentary rocks lead to seismic anisotropy which makes the wave velocity dependent on the propagation angle. This aspect causes errors in seismic imaging such as mispositioning of migrated events if anisotropy is not accounted for.
S. Y. Moussavi Alashloo, D. P. Ghosh, Y. Bashir, W. Y. Wan Ismail   +3 more
doaj   +1 more source

Kiruna region earthquakes, blasts and mining induced events

Data set of 189 earthquakes, 221 mining induced events from the Kiruna mine and 221 blasts from the Kiruna mine, recorded by seismic stations of the Swedish National Seismic Network (SNSN) and neighbouring countries. The earthquakes are mostly located to
Swedish National Seismic Network
core   +1 more source

Probabilistic prediction of rate‐dependent rock strength using natural gradient boosting and Gaussian process regression

Deep Underground Science and Engineering, EarlyView.
Probabilistic natural gradient boosting and Gaussian process regression models accurately predict rate‐dependent rock strength across lithologies. Static strength and strain rate dominate, while geometric factors have minimal influence, enabling interpretable and uncertainty‐aware predictions for dynamic geomechanical applications. Abstract The dynamic
Hadi Fathipour‐Azar
wiley   +1 more source

Multiscale dilated denoising convolution with channel attention mechanism for micro-seismic signal denoising

Journal of Petroleum Exploration and Production Technology
Denoising micro-seismic signals is paramount for ensuring reliable data for localizing mining-related seismic events and analyzing the state of rock masses during mining operations.
Jianxian Cai, Zhijun Duan, Li Wang, Juan Meng, Zhenjing Yao   +4 more
doaj   +1 more source

A Medium-sized Seismograph Network in a Challenging Environment

Geofísica Internacional, 1996
Se describe la operación de las red sísmicas de 30 estaciones que cubre las islas del Caribe Oriental, con centro en la Universidad de West Indies en Trinidad. La red incluye la vigilancia de 15 volcanes activos en un arco de 750 km de largo.
Lloyd L. Lynch, W. B. Ambeh, R. E. A. Robertson, J. L. Latchman, M. Bridgemohan   +4 more
doaj   +1 more source

Performance-Based approach in seismic design of embedded retaining walls

, 2008
The increasing use of the underground spaces and the last seismic events in the urban areas have driven many researchers of different countries to deepen the knowledge on the dynamic behaviour of the structure embedded in the subsoil.
Visone, Ciro
core  

Investigation on the failure evolution characteristics of surrounding rock in deep cross‐fault roadway: Based on physical model test and numerical simulation

Deep Underground Science and Engineering, EarlyView.
This study reveals the failure evolution characteristics of deep cross‐fault roadway surrounding rock under excavation support and periodic weighting. Periodic weighting readily induces fault activation, with the spatial distribution of failed rock masses being controlled by the fault strike and dip.
Tiezhu Li, Suping Peng, Jing Zheng, Zhanhua Yang, Qijun Tian   +4 more
wiley   +1 more source

Seismic scattering signatures of small-scale heterogeneities: examples from the Mount Messenger Formation, New Zealand

Heterogeneity that is on a length scale just below that of a seismic wavelength is at the limit of resolution but may still cause significant wave scattering.
Haines, A. J., Hulme, T., Henrys, S. A.
core   +1 more source

A seismic study of the mid- and lower-crust beneath the sea of Bothnia: BABEL line 1 [PDF]

, 1994
In the Autumn of 1989, Durham University took part in the BABEL Project, a collaboration of scientists from five nations recording wide angle and normal incidence seismic data in the Baltic Shield.
Graham, Daniel P.
core