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Stress Transfer From Slow Slip Events to Earthquake Swarms as a Cycle in the Southernmost Ryukyu Subduction Zone

open access: yesGeophysical Research Letters
Recent megathrust earthquakes preceded by slow slip events highlight static stress transfer as a key triggering mechanism. However, there are limited insights into the interplay between static stress transfer and elevated fluid pressure before earthquake
Sean Kuanhsiang Chen   +4 more
doaj   +1 more source

Stability of highly inclined non-circular wellbores in isotropic formations

open access: yesGeomechanics and Geophysics for Geo-Energy and Geo-Resources
The shear and tensile stabilities of highly inclined non-circular wellbores are investigated in this study. Using the equivalent-ellipse hypothesis, the non-circular geometry was approximated as an ellipse, and the corresponding stress concentration ...
Oluwafemi Oyedokun, Jerome Schubert
doaj   +1 more source

Modified rock stress factor for the Mathews stability graph method and its application

open access: yesGeomatics, Natural Hazards & Risk
It is difficult to accurately predict and assess the instability of the stope. This article uses the improved Mathews stability graph method to scientifically analyse and evaluate the quality and stability of the surrounding rock. It utilizes the failure
Minsi Zhang   +4 more
doaj   +1 more source

Measurement of interlaminar shear properties of pultruded CFRP composites based on modified DNS specimens

open access: yesCase Studies in Construction Materials
A double-notch shear (DNS) test was modified for a measurement of interlaminar shear properties of pultruded carbon-fibre-reinforced polymer (CFRP) composites under moderate through-thickness compressive stresses, which were applied by torqued bolts.
Yi-Feng Gao   +5 more
doaj   +1 more source

Deformation, fracture characteristics and damage constitutive model of soft coal under true triaxial complex stress paths.

open access: yesPLoS ONE
Understanding the mechanical properties and damage deterioration mechanisms of soft coal under true triaxial complex stress paths is crucial for predicting and evaluating the stability of the roof during roadway excavation in thick soft coal seams.
Chongyang Jiang   +3 more
doaj   +1 more source

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