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In Situ Stress Gauge Calibration.
1977Abstract : The accuracy of 'in situ' stress measurements is dependent upon the presence of strain within the active gauge element. In gauge records of dynamic stress fields, the onset of strain response of the gauge is not able to be defined. Development of a gauge that responds only to the applied pressure, independent of the strain field, is usable ...
J. Shea, K. Seifert
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2006
Understanding the stress state in the earth's crust is crucial for engineers working in rock, particularly with regard to underground construction. Experience shows that an adequately high horizontal in-situ stress has a positive effect in stabilizing large span rock caverns close to the ground surface.
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Understanding the stress state in the earth's crust is crucial for engineers working in rock, particularly with regard to underground construction. Experience shows that an adequately high horizontal in-situ stress has a positive effect in stabilizing large span rock caverns close to the ground surface.
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In situ stress determination by stress change monitoring
2020The in situ stresses are important design parameters in rock engineering. Unfortunately, conventional stress measurement techniques are expensive, difficult to execute, and often inconclusive due to spatial variations in stress or scale effects. An innovative and for many applications economical approach has been developed at the Geomechanics Research ...
D. Zou, P.K. Kaiser
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In Situ Stress Measurements in Austria
1980In situ stress measurements were made at 6 locations in Austria, which were chosen in such a fashion as to yield information on the neotectonic stress in the country. Because of a strong influence of the Alpine topography, it was necessary to apply finite-element calculations for the interpretation of the field results.
F. Kohlbeck +2 more
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In Situ Stress Measurements in Italy
1980Most of the in situ natural state-of-stress measurements have been carried out in Italy at the sites of large underground hydroelectric powerhouses and at the sites of important mines. The method successfully used was in all cases based on the measurement of the deformations caused by the stress release on the bottom of boreholes.
Sandro Martinetti, Renato Ribacchi
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In‐Situ Stress Measurements in Singapore
Chinese Journal of Geophysics, 2012AbstractIn the year 2008 and 2009, in‐situ stresses were measured in 18 boreholes by the hydraulic fracturing method to determine the present‐day stress state of the shallow crust in Singapore, which provide key parameters for the design and construction of underground tunnels and data for the study of world stress environments.
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In-Situ and Ex-Situ Measurement of Stresses in Environmental Barrier Coatings
Volume 2: Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative FuelsAbstract Ceramic Matrix Composites (CMCs) offer a step improvement in temperature capability over the current best high temperature super alloys for gas turbine applications. Silicon Carbide (SiC) based CMCs react with water vapor at temperature and therefore need an Environmental Barrier Coating (EBC) for protection against the water ...
Hans Hudyncia +3 more
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In situ stresses in bridge beams. Part I: concrete stresses
Magazine of Concrete Research, 2015An advanced investigation of the core-drilling method (CDM) for direct application in bridge assessment is conducted. In the CDM a small hole is drilled into concrete and the displacements that occur as a result of load redistribution around the hole are measured and related to in situ stress.
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