A MEASURING DEVICE AND METHOD OF USE THEREOF
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United States of America Patent
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Issued Date -
Jul 13, 2023
app pub date -
Jun 18, 2021
filing date -
Jun 18, 2020
priority date (Note) -
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Abstract
The present invention concerns a device and method for selectively or simultaneously measuring shear strength and pore water pressure of a soil in the field. The device includes a rod adapted to be at least partially inserted into the soil and rotated. The rod has a soil engaging portion and an opposed coupling portion configured to be coupled to a torque applying machine or device. The device further includes at least one vane blade extending at least partially along and from the soil engaging portion of the rod for shearing the soil when rotated together with the rod. At plurality of pore water pressure sensors are operatively associated with at least one of the soil engaging portion and the at least one vane blade. The sensors are configured to sense pressure indicative of the pore water pressure of the soil while the at least one vane blade shears the soil.
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