My Construction Photos > Caterpillar 621F wheel-tractor scraper returns to cut area after dumping previous load at fill area. Cat D6R bull dozer is rough grading earth slope on which scraper became hung up going uphill with last load. The Courtyards private dormitory, North Campus, University of Michigan, Ann Arbor, Michigan. 2007.
My Construction Photos > Steel frame supports horizontal rebars for cast in place concrete beam. Top steel is supported at proper height by a transverse rebar, and height can be adjusted by small chain fall. Top steel supports U stirrups, which can themselves support horizontal bottom steel. Note that steel rebar cage sags under its own weight and requires additional support along its length. Colorado Street, Denver, Colorado, December 4, 2006.
My Construction Photos > At far end, steel frame supports horizontal rebars for cast in place concrete beam. Top steel is supported at proper height by a transverse rebar, and height can be adjusted by small chain fall. Top steel supports U stirrups, which can themselves support horizontal bottom steel. Resteel sags under its own weight and needs additional support along its length. The resteel extends grade beams at near end, which has top steel exposed to bond to concrete slab floor. Colorado Street, Denver, Colorado, December 4, 2006.
My Construction Photos > Soil, earth construction: Caterpillar 613C elevating/self-loading scraper, 11 CY capacity, 175 hp, is moving earth to level land to a more even grade for construction of condominiums. Scraper is making a loading pass, with its bowl cutting edge lowered to scrape up earth and elevating paddle buckets rotating to pick up soil against bowl edge and elevate it to fall into the bowl. Ann Arbor, Michigan 2006.
My Construction Photos > Soil, earth construction: Caterpillar 613C elevating/self-loading scraper, 11 CY capacity, 175 hp, is moving earth to level land to a more even grade for construction of condominiums. Scraper is making a loading pass, with its bowl edge lowered to scrape up earth and paddle buckets rotating to pick up soil against bowl edge and elevate it to fall into the bowl. This is close upview of lower end of the chain and paddle elevating conveyor. We see four paddles, as they are lowered and rotated to pick up soil against the edge of bowl. The forward side of the elevating conveyor moves downward with paddle buckets pointing downward, and the rear side moves upward with the paddles pointing upward, holding excavated soil that they dump in bowl as they turn over at the top. Ann Arbor, Michigan 2006.
My Construction Photos > Soil, earth construction: Caterpillar 613C elevating/self-loading scraper, 11 CY capacity, 175 hp, is moving earth to level land to a more even grade for construction of condominiums. Scraper is making a loading pass, with its bowl edge lowered to scrape up earth and paddle buckets rotating to pick up soil against bowl edge and elevate it to fall into the bowl. This is close up view of upper end of the chain and paddle elevating conveyor. We see six paddles, s they are lifted and rotated to drop their soil into the scraper bowl. The forward side of the elevating conveyor moves downward with paddle buckets pointing downward, and the rear side moves upward with the paddles pointing upward, holding excavated soil that they dump in bowl as they turn over at the top. Ann Arbor, Michigan 2006.
My Construction Photos > Soil, earth construction: Caterpillar 613C elevating scraper, 11 CY capacity, 175 hp, is moving earth to level land to a more even grade for construction of condominiums. Scraper is making a dump/unloading pass, with its bowl edge raised and the soil ejector and wheel paddles pushing soil in bowl out, as can be seen here. Ann Arbor, Michigan 2006.
My Construction Photos > Soil, earth construction: Caterpillar 613C elevating/self-loading scraper, 11 CY capacity, 175 hp, is moving earth to level land to a more even grade for construction of condominiums. Scraper is traveling with bowl/pan edge up, from dumping soil at left to making a loading pass to the right. Ann Arbor, Michigan 2006.
My Construction Photos > Soil, earth construction: Caterpillar 613C elevating/self-loading scraper, 11 CY capacity, 175 hp, is moving earth to level land to a more even grade for construction of condominiums. Soil, earth construction: Caterpillar 613C elevating scraper, 11 CY capacity, 175 hp, is moving earth to level land to a more even grade for construction of condominiums. Scraper has just finished making its dumping pass and will now turn left to make its loading runm. Ann Arbor, Michigan 2006.
Caterpillar 621F wheel-tractor scraper returns to cut area after dumping previous load at fill area. Cat D6R bull dozer is rough grading earth slope on which scraper became hung up going uphill with last load. The Courtyards private dormitory, North Campus, University of Michigan, Ann Arbor, Michigan. 2007.
My Construction Photos > Caterpillar 621F wheel-tractor scraper returns to cut area after dumping previous load at fill area. Cat D6R bull dozer is rough grading earth slope on which scraper became hung up going uphill with last load. The Courtyards private dormitory, North Campus, University of Michigan, Ann Arbor, Michigan. 2007.
Caterpillar 621F wheel-tractor scraper returns to cut area after dumping previous load at fill area. Cat D6R bull dozer is rough grading earth slope on which scraper became hung up going uphill with last load. The Courtyards private dormitory, North Campus, University of Michigan, Ann Arbor, Michigan. 2007.
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