Results 21 to 30 of about 134,000 (295)

Considerations on the application of in-situ stress measurement and real-time monitoring in deep underground engineering in strong tectonic activity region

open access: yesDizhi lixue xuebao, 2023
The concentration, complexity, and significant anisotropy of in-situ stress make it a pressing and challenging issue in engineering geology safety in strong tectonic activity areas.
TAN Chengxuan   +11 more
doaj   +1 more source

In-situ stress characteristics and rockburst tendency of surrounding rocks in the Shuiwangzhuang gold deposit, Zhaoyuan, Shandong province

open access: yesDizhi lixue xuebao, 2023
We carried out hydraulic fracturing in-situ stress measurements in an 1881-m deep borehole at the Shuiwangzhuang gold deposit and obtained the variation law of deep in-situ stress with depth in the mining area.
LIU Luyong   +5 more
doaj   +1 more source

In situ stress measurement method of deep borehole based on multi-array ultrasonic scanning technology

open access: yesFrontiers in Earth Science, 2022
In order to improve the accuracy and efficiency of deep in-situ stress measurement, based on the wall collapse in deep borehole, a deep borehole in-situ stress measurement method based on multi-array ultrasonic scanning technology is proposed in this ...
Jinchao Wang   +5 more
doaj   +1 more source

Measuring forces and stresses in situ in living tissues [PDF]

open access: yesDevelopment, 2016
Development, homeostasis and regeneration of tissues result from a complex combination of genetics and mechanics, and progresses in the former have been quicker than in the latter. Measurements of in situ forces and stresses appear to be increasingly important to delineate the role of mechanics in development. We review here several emerging techniques:
Sugimura, K., Lenne, P.F, Graner, F.
openaire   +3 more sources

Current stress field and its relationship to tectonism in a coal mining district, central China, for underground coal energy exploration

open access: yesEnergy Reports, 2022
Adopting 47 sets of in situ stress measurements taken at depths ranging from 417 to 1123 m in a coal mining district in central China by the overcoring method, we characterize the magnitude and orientation of the current stress field and its relationship
Peng Li   +4 more
doaj   +1 more source

Problems in using a comb sample as a stress-free reference for the determination of welding residual stress by diffraction [PDF]

open access: yes, 2010
Precise measurement of a stress-free reference lattice parameter is vital in the determination of residual stress by diffraction techniques using θ/2θ-based analyses.
Ganguly S   +11 more
core   +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
Sophie Berveiller   +7 more
core   +1 more source

In-situ Analysis of Laminated Composite Materials by X-ray Micro-Computed Tomography and Digital Volume Correlation [PDF]

open access: yes, 2013
The complex mechanical behaviour of composite materials, due to internal heterogeneity and multi-layered composition impose deeper studies. This paper presents an experimental investigation technique to perform volume kinematic measurements in composite ...
Dupré, J.C.   +9 more
core   +1 more source

Holographic In-Situ Stress Measurement in Geophysics [PDF]

open access: yes, 1983
A new and still experimental method for measuring the absolute in-situ stress field in crustal rocks offers several advantages compared to existing in-situ stress measurement techniques. It employs optical holography to record strain-relief displacements
Cohn, Stephen Norfleet
core   +1 more source

Modification of the CSIRO method in the long-term monitoring of slope-induced stress

open access: yesFrontiers in Earth Science, 2022
The in situ stress measurement technique can be used in long-term monitoring of induced stress to obtain three-dimensional stress states in slope engineering.
Zhihao Jin   +6 more
doaj   +1 more source

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