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Geotechnical failure modes
Pertaining to heat energy extracted from reservoirs in the earth’s interior.
Grams per metre. Common expression of core loading of detonating cords. (1 gm/m = 4.7 grains/foot).
grains per foot
Grains per foot is a measure of the explosives loading in detonating cord. The term is in imperial units and cord from North America is often rated in these units.
A grain is a unit of weight with 1 gram = 15.43 grains.
The conversion from grams per meter to grains per foot is:
1 gram per meter = 4.7 grains per foot.
Oscillatory movement of the ground caused by the passage of seismic waves.
Ground vibration is typically measured as a velocity of ground motion in millimeters per second using a seismograph.