Results 61 to 70 of about 31,006 (289)
Deep Underground Science and Engineering, EarlyView.Based on experimental results and theoretical analysis, an established rock damage accumulation model that comprehensively considers the preapplied static load, impact peak value, impact frequency, and impact times. Abstract To study the rock damage mechanism under high static loading and superimposed medium strain rate cyclic impact loading, a series ...
Wei Wang +6 more
wiley +1 more source
Seismic anisotropy under Zagros foreland from SKS splitting observations [PDF]
Solid EarthWe present SK[K]S splitting measurements from 18 newly deployed seismic stations in the foreland of the Zagros collision zone, providing new insights into asthenospheric flow and lithospheric deformation associated with the Arabian-Eurasian continental ...
K. Motaghi +4 more
doaj +1 more source
Deriving micro- to macro-scale seismic velocities from ice-core c axis orientations [PDF]
The Cryosphere, 2018 One of the great challenges in glaciology is the ability to estimate the bulk ice anisotropy in ice sheets and glaciers, which is needed to improve our understanding of ice-sheet dynamics.
J. Kerch +6 more
doaj +1 more source
Deep Underground Science and Engineering, EarlyView.A novel cavity contraction solution and multilayer shaft wall model were developed to analyze deep shaft stability, considering rock viscosity, support structures, and water pressure, with successful validation through a Hulusu Coal Mine case study.
Bin Chen +5 more
wiley +1 more source
Research progress on seismic anisotropy in the Tarim Basin and Tianshan region
地球与行星物理论评The Tarim Basin and the Tianshan region are the key interaction zones between the Central Asian orogenic belt and stable blocks, and are natural laboratories for studying the tectonic deformation of the continent, the coupling effect of basin-mountain ...
Taijin Su +7 more
doaj +1 more source
Deep Underground Science and Engineering, EarlyView.Joint orientation significantly affects P‐wave velocity, with the highest velocity at zero‐degree angles, decreasing to 30° as the angle increases. The velocity increases slightly from 30 to 45 degrees but sharply decreases from 45 to 90 degrees. Abstract Determination of the required parameters in different science contexts using the ultrasonic wave ...
Yaghoob Zarei +4 more
wiley +1 more source
Imaging compaction band propagation in Diemelstadt sandstone using acoustic emission locations [PDF]
, 2008 We report results from a conventional triaxial test performed on a specimen of Diemelstadt sandstone under an effective confining pressure of 110 MPa; a value sufficient to induce compaction bands.
Baud, P +5 more
core +1 more source
Seismic anisotropy at Hydrate Ridge [PDF]
Geophysical Research Letters, 2006 P‐wave velocity increases in the presence of gas hydrates and decreases in the presence of free gas in the sediments, making it an excellent means to investigate gas hydrate systems. However, seismic velocity is typically derived from surface seismic data without consideration of seismic anisotropy.
Dhananjay Kumar +4 more
openaire +1 more source
Frontiers in Earth ScienceThis study conducts an in-depth analysis of seismic anisotropy around the Longmenshan Faults. Utilizing a dataset of about 7710 earthquake catalogs from July 2007 to March 2023, we applied S wave splitting and receiver function methods to examine Pms and
An-Jian Wang, Yuan Gao
doaj +1 more source
Geosciences, 2020 Obtaining the most accurate and detailed subsurface information from seismic surveys is one of the main challenges for seismic data processing, especially in the context of complex geological conditions (e.g., mountainous areas).
Mateusz Zaręba +2 more
doaj +1 more source