Results 31 to 40 of about 4,299,358 (286)

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

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

Stress drop, earthquake aftershocks and regional stress relation based on synthetic static Coulomb failure stress model

Journal of Physics: Conference Series, 2019
Coulomb failure criterion has been applied widely in the scope of earthquake science to explain earthquake interactions base on stress change, with the well-known method named Coulomb failure stress change ΔCFS). Preceding studies have showed: increase ΔCFS, depicted as positive stress lobes, has correlation with occurrence of following events. However
D Kusumawati, D P Sahara, A D Nugraha, N T Puspito   +3 more
openaire   +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

Mohr–Coulomb model failure criteria.

, 2021
Mohr–Coulomb model failure criteria.
Gaojian Hu (11457537), Gang Ma (52569)
core   +1 more source

An analytical solution to wellbore stability using Mogi-Coulomb failure criterion

Journal of Rock Mechanics and Geotechnical Engineering, 2019
Deep wellbores/boreholes are generally drilled into rocks for oil and gas exploration, monitoring of tectonic stresses purposes. Wellbore and tunnel in depth are generally in true triaxial stress state, even if the ground is under axisymmetric loading ...
Aditya Singh, K. Seshagiri Rao, Ramanathan Ayothiraman   +2 more
doaj   +1 more source

Sensitivity of Coulomb Stress Change to the Parameters of the Coulomb Failure Model: A Case Study Using the 2008 Mw 7.9 Wenchuan Earthquake

The Coulomb stress change has been widely employed to interpret mainshock-mainshock and mainshock-aftershock triggering as well as interactions amongst earthquake faults and volcanoes.
Li Z, Xu C, Freymueller J, Wang J, Shen W   +4 more
core   +4 more sources

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