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tir a retard

delayed blasting

industries charbonnière et minière - iate.europa.eu

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A study of mine blasts and rockbursts in the pacific northwest... The type of delayed blasting at the Centralia mine may not be conducive to the detection of spectral scalloping or nulling, and this effect has not been clearly observed in preliminary spectral...

général - core.ac.uk - PDF: www.dtic.mil

Numerical simulation of stress wave interaction in short-delay blasting with a single free surface - fig 14Peak tensile stresses of 1 ms-delayed blasting for different types of explosive detonation near free face: (a) Peak tensile stresses in X direction along line 2; (b) Peak tensile stresses in X direction along...

PDF: figshare.com

Numerical simulation of stress wave interaction in short-delay blasting with a single free surface - fig 15Peak tensile stresses of 2 ms-delayed blasting for different types of explosive detonation near free face: (a) Peak tensile stresses in X direction along line 2; (b) Peak tensile stresses in X direction along...

PDF: figshare.com

Delayed blasting tests to improve highwall stability : a progress report"The Bureau of Mines conducted a series of delayed blasting experiments at a West Virginia contour coal mine that resulted in smoother highwalls....

PDF: stacks.cdc.gov