displacement monitor Articles
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Numerical analyses of the hangingwall failure due to sublevel caving: study case
The sublevel caving used in Kiirunavaara mine induces failure and subsidence of the hangingwall. Two sections of the mine were studied by means of numerical analyses. Numerical models were developed using finite element and discrete element codes. The former was applied to calculate the location of new failure surfaces in the hangingwall and to estimate the break angle when mining advances ...
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Soil-Geogrid Reinforcement Interaction by Pullout and Direct Shear Tests
Pullout and direct shear tests have been conducted to investigate the soil-reinforcement interaction behavior in pullout and direct shear mechanisms. An apparatus—discussed in this paper—has been developed that is capable of performing both pullout and direct shear tests. Displacement measurements to monitor dilatancy on the backfill soil during pullout tests are incorporated in the apparatus. ...
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A Multiple Purpose Soil Testing Apparatus
A relatively compact soil testing system that is capable of performing monotonic/cyclic triaxial and torsional simple shear tests has been developed. A high-torque direct-drive, servo/stepper motor is used to provide the driving force. Under the servo mode, the motor could be controlled to provide a constant torque, which is used in stress-controlled tests. Strain-controlled tests are conducted ...
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Oxygen detection in manufacturing of precious and non-precious metal coins - Case Study
Oxygen detection in heat treating/annealing furnace atmosphere in manufacturing of precious and non-precious metal coins Sunshine Minting use the Systech Illinois EC913 process oxygen analyzer to monitor the oxygen in their heat treating/annealing furnace attmosphere. Based in Idaho, U.S.A., Sunshine Minting Inc. (SMI) is a leading supplier of precious metal and base metal mint products. ...
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Joint action on climate change: Key resources
Who’s linking climate change, development, and disaster reduction? Ilan Kelman rounds up vital sources and voices. Many useful and mainly free online resources reflect the links amongst climate change, development and disaster risk reduction — the following are some key organisations and documents. Focus on climate change Climate change science has been much debated. The full ...
By SciDev.Net
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