Measuring and testing – Specimen stress or strain – or testing by stress or strain... – Earth stresses
Patent
1983-10-11
1985-06-25
Myracle, Jerry W.
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
Earth stresses
73 84, G01B 716
Patent
active
045246262
ABSTRACT:
The device of the present invention comprises a frame having at least one sensor mounted thereon. The sensor includes a diaphragm flush with one surface of the frame, a porous filter flush with one surface of the frame, and a strain gauge bonded to diaphragm and in electrical communication with a read-out instrument. A passageway in the frame provides communication between the filter and the diaphragm such that the water pressure of the saturated soil is transmitted through the filter such that the soil pore pressure is exerted on the back side of the diaphragm. Simultaneously, the total pressure of the saturated soil is exerted on the front side of the diaphragm when the device is embedded in the soil. The strain gauge measures the net pressure on the diaphragm which is equal to the soil effective stress, thus giving a direct measurement of such stress.
REFERENCES:
patent: 2284707 (1942-06-01), Wilson
patent: 2336500 (1943-12-01), Osterberg
patent: 3303695 (1967-02-01), Laimins et al.
patent: 3372577 (1968-03-01), Bates et al.
patent: 3529468 (1970-09-01), Carlson
patent: 3906781 (1975-09-01), Vlasblom
patent: 4091661 (1978-05-01), Handy et al.
Handy Richard L.
Pabst Mark W.
Iowa State University & Research Foundation, Inc.
Myracle Jerry W.
LandOfFree
Soil effective stress sensor and method of using same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Soil effective stress sensor and method of using same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Soil effective stress sensor and method of using same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-548908