Results 11 to 20 of about 37,041 (202)

Large Igneous Province Record Through Time and Implications for Secular Environmental Changes and Geological Time‐Scale Boundaries

open access: yesGeophysical Monograph Series, Page 1-26., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst   +8 more
wiley  

+4 more sources

Vertical facing panel-joint gap analysis for steel-seinforced soil walls [PDF]

open access: yes, 2016
This paper reports the results of a numerical parametric study focused on the prediction of vertical load distribution and vertical gap compression between precast concrete facing panel units in steel-reinforced soil walls ranging in height from 6 to 24 ...
Bathurst, Richard   +3 more
core   +2 more sources

Geomechanics of Interaction of Frame-Anchor Support Elements of Extraction Drifts in Solid Load-Carrying System [PDF]

open access: yes, 2010
An aluminum alloy with two different precipitation states was processed by Equal Channel Angular Pressing up to 16 passes. The thermal stability of the ultra-fine grain structure was examined during annealing at 300°C up to 1 h.
Astafyev, Denys   +3 more
core   +2 more sources

Themed issue on selected papers SEG2015: part II [PDF]

open access: yes, 2016
This themed issue of Geomechanics for Energy and the Environment ‘SEG-2015-Part II’, presents papers selected from extended abstracts submitted to the Symposium on Energy Geotechnics (SEG-2015) held in the Civil Engineering School of the Universitat ...
Romero Morales, Enrique Edgar   +1 more
core   +2 more sources

Numerical evaluation of three non-coaxial kinematic models using the distinct element method for elliptical granular materials [PDF]

open access: yes, 2016
This is the accepted version of the following article: [Jiang, M. J., Liu, J. D., and Arroyo, M. (2016) Numerical evaluation of three non-coaxial kinematic models using the distinct element method for elliptical granular materials. Int. J. Numer.
Arroyo Alvarez de Toledo, Marcos   +2 more
core   +2 more sources

Stratigraphically Controlled Stress Variations at the Hydraulic Fracture Test Site-1 in the Midland Basin, TX

open access: yesEnergies, 2021
We investigated the relationship between stratigraphy, stress, and microseismicity at the Hydraulic Fracture Test Site-1. The site comprises two sets of horizontal wells in the Wolfcamp shale and a deviated well drilled after hydraulic fracturing ...
Arjun Kohli, Mark Zoback
doaj   +1 more source

Analysis of Caprock Tightness for CO2 Enhanced Oil Recovery and Sequestration: Case Study of a Depleted Oil and Gas Reservoir in Dolomite, Poland

open access: yesEnergies, 2021
This study addresses the problem of geological structure tightness for the purposes of enhanced oil recovery with CO2 sequestration. For the first time in the history of Polish geological survey the advanced methods, practical assumptions, and ...
Małgorzata Słota-Valim   +3 more
doaj   +1 more source

Effects of finite strains in fully coupled 3D geomechanical simulations [PDF]

open access: yes, 2019
Numerical modeling of geomechanical phenomena and geo-engineering problems often involves complex issues related to several variables and corresponding coupling effects.
De Marchi, Nico   +2 more
core   +1 more source

Principles of the non-Euclidian model application to the problem of dissipative mesocracking structures of highly compressed rock and massifs modelling

open access: yesE3S Web of Conferences, 2018
New experimental results such as “zonal disintegration” around deep openings and “reversible deformations” of highly compressed rock samples cannot be described correctly from contemporary rock mechanics, which is based on the principals of classical ...
Guzev Mikhail, Makarov Vladimir
doaj   +1 more source

Estimation of corrosion resistance of curing mixtures based on coal-bearing rocks from Western Donbass [PDF]

open access: yes, 2016
Purpose. Substantiation of possible use of coal-bearing rocks as a replacement for a part of the filler in the preparation of shotcrete for lining of mine workings in the conditions of mineralized mine water. Methods.
Harkusha, V, Kovalenko, V
core   +2 more sources

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