Results 41 to 50 of about 263,848 (296)

Coseismic Stress Change and Viscoelastic Relaxation after the 2008 Great Sichuan Earthquake

Applied Sciences, 2022
Long-term stress accumulation influenced by coseismic stress changes and postseismic viscoelastic relaxation is considered critical to triggering giant earthquakes. Nevertheless, how the stress increase is interrupted by aftershocks and how it influences
Chaodi Xie, Ye Zhu, Yingfeng Ji, Weiling Zhu, Rui Qu, Yan Xu, Aitang Li   +6 more
doaj   +1 more source

A Coulomb Stress Response Model for Time‐Dependent Earthquake Forecasts

Journal of Geophysical Research: Solid Earth, 2022
Seismicity models are probabilistic forecasts of earthquake rates to support seismic hazard assessment. Physics‐based models allow extrapolating previously unsampled parameter ranges and enable conclusions on underlying tectonic or human‐induced ...
T. Dahm, S. Hainzl
semanticscholar   +1 more source

Source Model and Triggered Aseismic Faulting of the 2021 Mw 7.3 Maduo Earthquake Revealed by the UAV-Lidar/Photogrammetry, InSAR, and Field Investigation

Remote Sensing, 2022
Multi-source datasets, including the UAV-Lidar/Photogrammetry, InSAR, and field investigation data, have been used for revealing the complex surface displacement pattern and focal mechanism of the 2021 Maduo Mw 7.3 earthquake. First, a co-seismic surface
Ying-Hui Yang, Qiang Xu, Jyr-Ching Hu, Yun-Sheng Wang, Xiu-Jun Dong, Qiang Chen, Yi-Jun Zhang, Hao-Liang Li   +7 more
doaj   +1 more source

Study on Coulomb Stress Triggering of the April 2015 M7.8 Nepal Earthquake Sequence

International Journal of Geophysics, 2016
In April 2015, a M7.8 earthquake occurred less than one month before a M7.3 earthquake near Kodari, Nepal. The Nepal earthquake sequences also include four larger (M > 6) aftershocks. To reveal the interrelation between the main shock and the aftershocks,
Jianchao Wu, Qing Hu, Weijie Li, Dongning Lei   +3 more
doaj   +1 more source

Practical application of failure criteria in determining safe mud weight windows in drilling operations

Journal of Rock Mechanics and Geotechnical Engineering, 2014
Wellbore instability is reported frequently as one of the most significant incidents during drilling operations. Analysis of wellbore instability includes estimation of formation mechanical properties and the state of in situ stresses.
R. Gholami, A. Moradzadeh, V. Rasouli, J. Hanachi   +3 more
doaj   +1 more source

Evaluation of the Effect of Geomechanical Parameters and In Situ Stress on Tunnel Response Using Equivalent Mohr-Coulomb and Generalized Hoek-Brown Criteria

Geosciences, 2022
The generalized Hoek-Brown (GHB) failure criterion can estimate the rock mass parameters required for rock mechanics–related analyses such as numerical modeling in geomechanics.
Ali Saeidi, Côme Cloutier, Abbas Kamalibandpey, Alireza Shahbazi   +3 more
doaj   +1 more source

New Interface for Assessing Wellbore Stability at Critical Mud Pressures and Various Failure Criteria: Including Stress Trajectories and Deviatoric Stress Distributions

Energies, 2019
This study presents a new interface for wellbore stability analysis, which visualizes and quantifies the stress condition around a wellbore at shear and tensile failure.
Jihoon Wang, Ruud Weijermars
doaj   +1 more source

Mechanical Properties, Slip and Nucleation of the 1999 Chia-Yi Earthquake: the Question of Static Stress Influence from the 1999 Chi-Chi Earthquake

Terrestrial, Atmospheric and Oceanic Sciences, 2006
We investigate the effects of static stress transfer from the 1999 Chi-Chi Taiwan earthquake to the subsequent Chia-Yi earthquake by using Coulomb failure assumptions.
Shu-Hao Chang Wei-Hau Wang
doaj   +1 more source

Simple Correlation to Evaluate Mohr-Coulomb Failure Criterion Using Uniaxial Compressive Strength

Journal of King Saud University: Engineering Sciences, 2002
The evaluation of Mohr-Coulomb failure criterion as well as other mechanical properties for reservoir rocks is essential for well planning, development and characterization of oil and gas reservoirs.
Musaed N.J. Al-Awad
doaj   +1 more source

A Stochastic Bulk Damage Model Based on Mohr-Coulomb Failure Criterion for Dynamic Rock Fracture

Applied Sciences, 2019
We present a stochastic bulk damage model for rock fracture. The decomposition of strain or stress tensor to its negative and positive parts is often used to drive damage and evaluate the effective stress tensor. However, they typically fail to correctly
B. Bahmani, R. Abedi, P. Clarke
semanticscholar   +1 more source