Results 31 to 40 of about 388,680 (332)

Inversion Method of In-situ Stress and Rock Damage Characteristics in Dam Site Using Neural Network and Numerical Simulation—A Case Study

open access: yesIEEE Access, 2020
In mountain and ravine region of southwest China, several hydropower stations have been built in this area. It is the main national base for hydropower energy development, but under the influence of geological structure and surface erosion, the in-situ ...
Gan Li   +5 more
doaj   +1 more source

A portable load cell for in-situ ore impact breakage testing [PDF]

open access: yes, 2002
This paper discusses the design and characterisation of a short, and hence portable impact load cell for in-situ quantification of ore breakage properties under impact loading conditions.
Banini, George, Bourgeois, Florent
core   +1 more source

Formulation and procedure for in situ stress back-analysis from borehole strain changes measured during nearby underground excavation

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2023
Estimation of in situ stresses based on back-analysis of measured stress changes and displacements has become an alternative to the direct stress measurement methods.
Cui Lin, D.H. Steve Zou
doaj   +1 more source

Advances in martensitic transformations in Cu-based shape memory alloys achieved by in situ neutron and synchrotron X-ray diffraction methods [PDF]

open access: yes, 2012
This article deals with the application of several X-ray and neutron diffraction methods to investigate the mechanics of a stress induced martensitic transformation in Cu-based shape memory alloy polycrystals. It puts experimental results obtained by two
Berveiller, Sophie   +3 more
core   +8 more sources

Pressure-dependent transition from atoms to nanoparticles in magnetron sputtering: Effect on WSi2 film roughness and stress

open access: yes, 2010
We report on the transition between two regimes from several-atom clusters to much larger nanoparticles in Ar magnetron sputter deposition of WSi2, and the effect of nanoparticles on the properties of amorphous thin films and multilayers.
A. L. Barabasi   +11 more
core   +1 more source

Thermal Behavior in the Lens Process [PDF]

open access: yes, 1998
Direct laser metal deposition processing is a promising manufacturing technology which could significantly impact the length oftime between initial concept and finished part.
Baldwin, M. D.   +12 more
core   +1 more source

Study on the hydraulic fracturing in-situ stress measurement in super-long highway tunnels in southern Shaanxi:Engineering geological significance

open access: yesDizhi lixue xuebao, 2022
The complex terrain and marked anisotropy of regional tectonic stress field in western China make the crustal stress state an important assessment parameter.
LI Bin, ZHANG Wen, WEN Ran
doaj   +1 more source

Research progress and prospects of deep stress measurement technology

open access: yesDizhi lixue xuebao
Objective  With the implementation of the national strategy of seeking resources, safety, and space from deep Earth, the frequency and intensity of various engineering disasters caused by in-situ stress have also significantly increased. At the same time,
SUN Dongsheng   +6 more
doaj   +1 more source

Determination of stress state in deep subsea formation by combination of hydraulic fracturing in situ test and core analysis: A case study in the IODP Expedition 319

open access: yes, 2013
[1] In situ test of hydraulic fracturing (HF) provides the only way to observe in situ stress magnitudes directly. The maximum and minimum horizontal stresses, SHmax and Shmin, are determined from critical borehole pressures, i.e., the reopening pressure
Boutt, David   +21 more
core   +1 more source

Distribution of In Situ Stress in Northwest Jiaodong Peninsula

open access: yesAdvance in Civil Engineering, 2022
In order to study the present state of the tectonic stress field in northwest Jiaodong Peninsula, the characteristics of the ground stress distribution along depth were analyzed with the method of regression analysis.
Xingquan Liu   +6 more
semanticscholar   +1 more source

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