Results 21 to 30 of about 38,375 (314)

Experimental Study on Characteristics of Consolidated Undrained Shear Wave Velocity of Saturated Remolded Red Clay [PDF]

open access: yes长江科学院院报
[Objective] This study aims to investigate the relationship between shear wave velocity and physical-mechanical indices in saturated red clay. [Methods] Triaxial saturated specimens exhibiting varying dry densities were meticulously prepared. Utilizing a
XU Xing-qian, WANG Yong-hao, YANG Yuan-jun, ZHAO Xi, LI Xiao-long, WANG Hai-jun, HUANG Shi-chuan, MA Fang-wen
doaj   +1 more source

Experimental observation of water saturation effects on shear wave splitting in synthetic rock with fractures aligned at oblique angles [PDF]

open access: yes, 2015
Fractured rocks are known to exhibit seismic anisotropy and shear wave splitting (SWS). SWS is commonly used for fractured rock characterization and has been shown to be sensitive to fluid type. The presence of partial liquid/gas saturation is also known
Sothcott, J.   +7 more
core   +1 more source

Fully nonlinear inversion of fundamental mode surface waves for a global crustal model [PDF]

open access: yes, 2007
We use neural networks to find 1-dimensional marginal probability density functions (pdfs) of global crustal parameters. The information content of the full posterior and prior pdfs can quantify the extent to which a parameter is constrained by the data.
Meier, U.   +2 more
core   +1 more source

Subsonic near-surface P-velocity and low S-velocity observations using propagator inversion [PDF]

open access: yes, 2005
Detailed knowledge of near-surface P- and S-wave velocities is important for processing and interpreting multicomponent land seismic data because (1) the entire wavefield passes through and is influenced by the near-surface soil conditions, (2) both ...
Andrew Curtis   +5 more
core   +1 more source

Shear wave velocity-based evaluation of liquefaction resistance of in-situ sand with aging effects

open access: yesYantu gongcheng xuebao, 2023
The shear wave velocity is one of the commonly used parameters to evaluate liquefaction resistance of sandy soils. In this study, based on the initial liquefaction criterion-based shear wave velocity characterization model (i.e., the "Zhou-Chen model ...
ZHOU Yanguo 1, ZHOU Xinhui 1, SANG Yijia 2, SHI Anchi 2, CHEN Yunmin 1
doaj   +1 more source

An An Accurate Estimation of Shear Wave Velocity Using Well Logging Data for Khasib Carbonate Reservoir - Amara Oil Field

open access: yesJournal of Engineering, 2020
Shear and compressional wave velocities, coupled with other petrophysical data, are vital in determining the dynamic modules magnitude in geomechanical studies and hydrocarbon reservoir characterization. But, due to field practices and high running cost,
Rwaida K. AbdulMajeed, Ayad A. Alhaleem
doaj   +1 more source

Effects of Particle Shape on the Shear Wave Velocity and Shear Modulus of 3D Printed Sand Analogs

open access: yesOpen Geomechanics, 2022
Isolating the effects of individual particle properties (e.g. shape, size, mineralogy, surface roughness) on the mechanical behavior of naturally occurring coarse-grained soils is a significant challenge in experimental studies.
Alejandro Martinez, Sheikh Sharif Ahmed
doaj   +1 more source

Complex anisotropy beneath the Peruvian flat slab from frequency-dependent, multiple-phase shear wave splitting analysis [PDF]

open access: yes, 2013
Flat or shallow subduction is a relatively widespread global occurrence, but the dynamics remain poorly understood. In particular, the interaction between flat slabs and the surrounding mantle flow has yet to be studied in detail.
Long, Maureen D., Eakin, Caroline M.
core   +1 more source

Spatial variation characteristics of shear wave velocity structure and its application to quaternary deep sediment layers in Suzhou region

open access: yesYantu gongcheng xuebao, 2018
The shear wave velocity of soils is one of the most important parameters to evaluate the seismic effects of engineering sites. Based on large numbers of borehole shear wave velocity measurements and the engineering geological characteristics in Suzhou ...
ZHU Jiao 1,2, CHEN Guo-xing 1,2, XU Han-gang 3,2, LIU Xue-ning 1,2
doaj   +1 more source

PREDICTION OF SHEAR WAVE VELOCITY AND MODIFICATION OF CASTAGNA AND CARROLL RELATIONSHIPS IN ONE OF THE IRANIAN OIL FIELDS

open access: yesRudarsko-geološko-naftni Zbornik, 2022
Shear wave velocity is one of the essential parameters for describing hydrocarbon reservoirs that have several applications in petrophysical, geophysical, and geomechanical studies.
Mohammad Sadegh Mahmoudian   +2 more
doaj  

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