Results 81 to 90 of about 26,973 (231)

Effects of intermediate principal stress on creep closure of storage caverns in Maha Sarakham salt [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2017
True triaxial creep tests are performed to determine the effects of the intermediate principal stress on the timedependent behavior of the Maha Sarakham salt.
Sarayuth Archeeploha, Supattra Khamrat, Kittitep Fuenkajorn   +2 more
doaj   +1 more source

Effect of confining pressure on fracture characteristics and mineralogical behavior of tight sandstone specimens after hydraulic fracturing

Deep Underground Science and Engineering, EarlyView.
Hydraulic fracturing in tight sandstone and fracture propagation characteristics using backscattered electron‐scanning electron microscope (BSE‐SEM) images. Abstract This study focuses on hydraulic fracturing experiments conducted under triaxial conditions on tight sandstone specimens from Shivpuri district, Madhya Pradesh, India.
Pankaj Rawat, Narendra Kumar Samadhiya
wiley   +1 more source

Development and validation of three-way rigid true triaxial apparatus for soils

Yantu gongcheng xuebao
The intermediate principal stresses have a significant effect on the stress-strain behavior of soils. To describe the stress-strain behavior of soils more accurately, it is necessary to carry out true triaxial tests in the field of soil mechanics.
SHAO Shengjun 1, 2, WANG Zechi 1, SHAO Shuai 1, WU Hao 1, ZHANG Shaoying 1
doaj   +1 more source

Method Improvement and Effect Analysis of Triaxial Compression Acoustic Emission Test for Coal and Rock

Advances in Civil Engineering, 2019
In the study of the acoustic emission (AE) characteristics of rock samples or coal samples under triaxial compression conditions, most scholars carry out relevant experiments by placing the AE detector on the outer wall of the triaxial chamber of the ...
Yan Zhou, Chuanxiao Liu, Depeng Ma
doaj   +1 more source

The Centers of Early-Type Galaxies with HST III: Non-Parametric Recovery of Stellar Luminosity Distributions

, 1996
We have non-parametrically determined the luminosity density profiles and their logarithmic slopes for 42 early-type galaxies observed with HST. Assuming that the isodensity contours are spheroidal, then the luminosity density is uniquely determined from
Ajhar, Edward, Byun, Yong-Ik, Dressler, Alan, Faber, Sandra, Gebhardt, Karl, Grillmair, Carl, Kormendy, John, Lauer, Tod, Richstone, Douglas, Tremaine, Scott   +9 more
core   +1 more source

The influence of Massive Black Hole Binaries on the Morphology of Merger Remnants [PDF]

, 2018
Massive black hole (MBH) binaries, formed as a result of galaxy mergers, are expected to harden by dynamical friction and three-body stellar scatterings, until emission of gravitational waves (GWs) leads to their final coalescence.
Bortolas, Elisa, Dotti, Massimo, Gualandris, Alessia, Read, Justin I.   +3 more
core   +3 more sources

Failure characteristics and the energy criterion of rock with a through‐going joint under true‐triaxial unloading conditions: Insights from the DEM model

Deep Underground Science and Engineering, EarlyView.
The rock failure mode is significantly influenced by the contributing factors, such as the joint inclination, the initial confining pressure, and the unloading point. We found six typical rock failure modes after a large number of numerical tests. Abstract Excavation unloading damages rock masses, with preferential failure along geological defects in ...
Fei Liu, Changhui Liang, Sijia Liu, Yongjun Zhang, Luo Wang   +4 more
wiley   +1 more source

A Failure Criterion for Rocks Based on True Triaxial Testing [PDF]

Rock Mechanics and Rock Engineering, 2012
Mean effective normal stress acting on thefailure planec Cohesion/ Angle of internal frictionA, n, a, b Material constants1 DescriptionThe failure criterion based on true triaxial testing considersthe effect of all three principal stresses on rock compres-sive strength, and is entirely based on true triaxial testsconducted on rectangular prismatic ...
Chandong Chang, Bezalel Haimson
openaire   +1 more source

Lopsidedness of self-consistent galaxies by the external field effect of clusters

, 2017
Adopting Schwarzschild's orbit-superposition technique, we construct a series of self-consistent galaxy models, embedded in the external field of galaxy clusters in the framework of Milgrom's MOdified Newtonian Dynamics. These models represent relatively
Feix, Martin, Wang, Yougang, Wu, Xufen, Zhao, HongSheng   +3 more
core   +3 more sources

A review on rockburst prediction and prevention to shape an ontology‐based framework for better decision‐making for underground excavations

Deep Underground Science and Engineering, EarlyView.
A scientometric analysis of 2449 journal articles and a comprehensive review of 336 papers were conducted, discussing and identifying challenges and research gaps in rockburst prediction and prevention and proposing an ontology‐based framework for better decision‐making in underground excavations. Abstract With underground engineering projects becoming
Hongchuan Yan, Haijiang Li, Hongqiang Xie, Mingli Xiao, Jianliang Pei, Huaizhong Liu, Jiangda He   +6 more
wiley   +1 more source