Monitoring compaction of backfill

Details Monitoring compaction of backfill Monitoring compaction of backfill

1990-03-08

1992-04-21

Noland, Tom

Measuring and testing

Testing by impact or shock

Specimen impactor detail

73784, 73594, 73597, G01N 3324, G01N 2918, G01V 130

Patent

active

051056500

ABSTRACT:
Methods and apparatus for monitoring the compaction of backfill material in an excavation include hammer structure for impacting backfill material in the excavation, a sensor module for disposition at the bottom of the excavation to be backfilled that includes a transducer for developing an electric signal in response to energy transmitted through backfill material from the hammer structure, and a control module responsive to electric signals from the sensor module for providing an indication of the quality of compaction of backfill material in the excavation.

REFERENCES:
patent: Re31195 (1983-04-01), Thurner
patent: 2284707 (1942-06-01), Wilson
patent: 2336500 (1943-12-01), Ostergerg
patent: 2624251 (1953-01-01), Porter
patent: 3286514 (1966-11-01), Anderson
patent: 3372577 (1968-03-01), Bates et al.
patent: 3456496 (1969-07-01), Heller
patent: 3492859 (1970-02-01), Dodge
patent: 3529468 (1970-09-01), Carlson
patent: 3537541 (1970-11-01), Desai et al.
patent: 3641811 (1972-02-01), Gnaedinger, Jr. et al.
patent: 3998090 (1976-12-01), Wislocki
patent: 4348901 (1982-09-01), Vural et al.
patent: 4398427 (1983-08-01), Pan
patent: 4495434 (1985-01-01), Diepers et al.
patent: 4524625 (1985-06-01), Pabst et al.
patent: 4543820 (1985-10-01), Handy et al.
patent: 4614110 (1986-09-01), Osterberg
patent: 4662226 (1987-05-01), Wang
patent: 4802371 (1989-02-01), Colderara et al.
patent: 4856318 (1989-08-01), Hogan et al.

Affiliated with

Also associated with

Rating

Monitoring compaction of backfill does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Monitoring compaction of backfill, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Monitoring compaction of backfill will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1577548