Results 51 to 60 of about 27,412 (233)

The damage and failure mechanism of prestatically loaded rock during medium‐strain rate cyclic impact loading

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, Hanpeng Wang, Zicheng Wang, Xinyuan Xie, Yunhao Wu, Jinhou Zhang, Dekang Sun   +6 more
wiley   +1 more source

Possible layered lithospheric anisotropy around Longmenshan Faults by teleseismic S wave splitting and receiver functions

Frontiers in Earth Science
This 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

On Including Near-surface Zone Anisotropy for Static Corrections Computation—Polish Carpathians 3D Seismic Processing Case Study

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, Tomasz Danek, Jerzy Zając   +2 more
doaj   +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, Benson, PM, Meredith, PG, Thompson, BD, Townend, E, Young, RP   +5 more
core   +1 more source

Semi‐analytical solution for the stability of deep vertical shaft considering time‐dependent rock‐structure interaction

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, Pinqiang Mo, Zhao Lu, Lianfei Kuang, Qiang Zhang, Abolfazl Eslami   +5 more
wiley   +1 more source

Detecting Compaction Disequilibrium with Anisotropy of Magnetic Susceptibility [PDF]

, 2006
In clay-rich sediment, microstructures and macrostructures influence how sediments deform when under stress. When lithology is fairly constant, anisotropy of magnetic susceptibility (AMS) can be a simple technique for measuring the relative consolidation
Bennett, Booth, Borrero, Bray, Constable, Dorman, Driscoll, Dugan, Edwards, Eichhubl, Field, Fischer, Fisher, Fisher, Geiss, Hendy, Hext, Hill, Homa Lee, Housen, Hu, Jelinek, Karlin, Kawamura, Kayen, King, Kirschvink, Kodama, Kopf, Kumar, Kurt Schwehr, Lambe, Lee, Leslie, Leslie, Lisa Tauxe, Liu, Locat, Marks, Marsaglia, McCabe, Mello, Neal Driscoll, O'Leary, Oey, Pan, Reimers, Riedinger, Rowan, Schlee, Schock, Schwehr, Shaw, Snowball, Soutar, Spinelli, Stephenson, Tarduno, Tarling, Tauxe, Tauxe, Thunell, Ward, Warrick   +63 more
core   +3 more sources

Numerical and experimental study on P‐wave propagation across a rock joint with different orientations

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, Mojtaba D. fallahi, Ali Uromeihy, Mohammad R. Nikoodel, Mohammad Fathollahy   +4 more
wiley   +1 more source

Lowermost Mantle Flow at Thermochemical Piles Constrained by Shear Wave Anisotropy: Insights From Combined Geodynamic and Mantle Fabric Simulations at Global Scale

Geochemistry, Geophysics, Geosystems
Seismic anisotropy is observed in the lowermost few hundred kilometers of the mantle. This anisotropy likely signifies strong deformation, possibly caused by mantle flow interacting with the edges of Large Low‐Shear‐Velocity Provinces (LLSVPs) or by the ...
Poulami Roy, Bernhard Steinberger, Manuele Faccenda, Michaёl Pons   +3 more
doaj   +1 more source

Near-surface seismic anisotropy in Antarctic glacial snow and ice revealed by high-frequency ambient noise

Journal of Glaciology, 2023
Ambient seismic recordings taken at broad locations across Ross Ice Shelf and a dense array near West Antarctic Ice Sheet (WAIS) Divide, Antarctica, show pervasive temporally variable resonance peaks associated with trapped seismic waves in near-surface ...
Julien Chaput, Rick Aster, Marianne Karplus, Nori Nakata, P. Gerstoft, P. D. Bromirski, A. Nyblade, R. A. Stephen, D. A. Wiens   +8 more
doaj   +1 more source

A multiphase seismic investigation of the shallow subduction zone, southern North Island, New Zealand [PDF]

, 2001
The shallow structure of the Hikurangi margin, in particular the interface between the Australian Plate and the subducting Pacific Plate, is investigated using the traveltimes of direct and converted seismic phases from local earthquakes.
Aki, Ansell, Ansell, Anya M. Reading, Bannister, Barnes, Barnes, Bradshaw, Brisbourne, Chanier, David Gubbins, Davy, de Boor, Eberhart-Phillips, Eberhart-Phillips, Franklin, Gledhill, Gubbins, Helffrich, Helffrich, Iidaka, Lancaster, Lodge, Luyendyk, Mao, Marson-Pidgeon, Powell, Reading, Robinson, Samson, Smith, Smith, Smith, Spencer, Stuart, Walcott, Weijian Mao, Wessel, Wood   +38 more
core   +1 more source