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> Bridge construction: Caterpillar D6M 140 horsepower, 15.5 ton crawler tractor bulldozer. In background is Caterpillar CP-563C single drum padfoot vibratory soil compactor. Broadway Bridge, Ann Arbor, 2003.
> Earthmoving construction: Bobcat T300 skid steer compact rubber tracked loader young operator is opening front screen to dismount after handling all controls. Annual Science of Big Machines exhibit by the northern Ohio construction industry at COSI, the Center for Science and Industry, Toledo, Ohio, June 2006.
> Earthmoving construction: Crawler mounted hydraulic backhoe reaches to excavate earth for basement. Laborer operates vibratory soil compaction machine in area recently excavated, beyond backhoe. In right background, soil is supported by timber breastboards. Breastboards are supported by structural steel H shape soldier beams, which were themselves driven as piles deeply into the soil, below bottom of basement. Cardiovascular Center, University of Michigan Hospital, Ann Arbor, 2004.
> Earthmoving construction, rough grading: Caterpillar 924G wheel based front end loader moves earth to a closeby area. Caterpillar 4C bulldozer pushes earth grades earth. Champion single drum vibratory roller with padfoot surface waits to compact earth when rough grade is met. Ontario, Canada 2005
> Soil moving, road construction: Worker pushes a gasoline driven vibratory soil compactor on a crushed gravel layer to provide base for street curb and sidewalk. Additional crushed gravel is in shovel of Caterpillar skeed steer loader on right. In foreground is excavation in which another worker is building a drain basin with concrete block and mortar. Huron Parkway, Ann Arbor, Michigan, 2005.
> Soil construction, foundation construction: Nuclear gauge setup and setup tools, for measuring density of soil. Soil is fresh fill behind a retaining wall that has just been compacted by a manually operated vibratory soil compactor, and the technician is measuring soil density. On left side is geo-fabric to contain soil fines and water, for water to drain out at base of wall through flexible corrugated plastic soil tubing. Huron Parkway, Ann Arbor, 2005. (Note: Non-nuclear gauges have made nuclear gauges obsolete. See Electrical Density Gauge and Geogauge at www.humboldtmfg.com, which won the Nova Award for construction innovation.)
> Soil, earth construction: Wacker WP 1550 manually operated walk-behind vibratory plate compactor compacting soil fill behind retaining wall. Geotech fabric covers back side of retaining wall. In distance is nuclear guage and technician that measures density of compacted soil. To right is unexcavated earth embankment. Fill will be placed up to top of retaining wall, compacted in lifts specified by design, probably 6, 8, or 12 inches. Huron Parkway, Ann Arbor, 2005.
> Earthmoving construction: Bobcat 341 crawler mounted compact hydraulic excavator/backhoe with blade. Lift capacity is 2500 lb/ 1150 kg. Mounted on boom is rotating clamshell bucket. CONEXPO, Las Vegas, Nevada, March 15, 2005.
> Asphalt construction: Ingersoll Rand SD-100 single drum vibratory soil/ asphalt compactor/ roller. Huron Village Shopping Center, Ann Arbor, 2002.
Bridge construction: Caterpillar D6M 140 horsepower, 15.5 ton crawler tractor bulldozer. In background is Caterpillar CP-563C single drum padfoot vibratory soil compactor. Broadway Bridge, Ann Arbor, 2003.
> Bridge construction: Caterpillar D6M 140 horsepower, 15.5 ton crawler tractor bulldozer. In background is Caterpillar CP-563C single drum padfoot vibratory soil compactor. Broadway Bridge, Ann Arbor, 2003.
Bridge construction: Caterpillar D6M 140 horsepower, 15.5 ton crawler tractor bulldozer. In background is Caterpillar CP-563C single drum padfoot vibratory soil compactor. Broadway Bridge, Ann Arbor, 2003.
Photo by: My Construction Photos · see photo in gallery
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