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Can we do the test inside water? Because if the ground water level is high, then the instrument will be under water. Then will it work?
then you have to use hydrophones
that can work in water
Basically you have to perform this Test using ASTM -D 4428 standard. Therefore according to the standard you have to perform grouting in your well when you lowered your casing in the well.
3:50 min . Which was the geophone ??
10 Hz Vertical Geophones
Hi friend. Are you using an electric motor for fixing the case or by the air preassure ?
And what did you use the supply of energy other bore hole ?
Can we do the test inside water? Because if the ground water level is high, then the instrument will be under water. Then will it work?
then you have to use hydrophones
that can work in water
Basically you have to perform this Test using ASTM -D 4428 standard. Therefore according to the standard you have to perform grouting in your well when you lowered your casing in the well.
3:50 min . Which was the geophone ??
10 Hz Vertical Geophones
Hi friend. Are you using an electric motor for fixing the case or by the air preassure ?
And what did you use the supply of energy other bore hole ?