My Construction Photos > Caterpillar 623B self elevating scraper doing cut and fill to prepare land for development between Phoenix and Tucson, Arizona. Scraper filled its bowl doing cut and raised bowl to travel. It has now lowered bowl and its ejector is pushing the soil load out the front of lowered bowl to dump the load. November, 2006.
My Construction Photos > Caterpillar 623B self elevating scraper doing cut and fill to prepare land for development between Phoenix and Tucson, Arizona. Scraper has filled its bowl doing cut and is traveling with bowl raised to fill area to dump its bowl. November, 2006.
My Construction Photos > Caterpillar 623B self elevating scraper doing cut and fill to prepare land for development between Phoenix and Tucson, Arizona. Scraper has filled its bowl doing cut and is traveling with bowl raised to fill area to dump its bowl. November, 2006.
My Construction Photos > Precast concrete tilt-up construction: Reinforced concrete wall section was pulled up at its top by crane into near vertical position to form section of outside wall of building. Worker uses impact drill to make hole in slab into which to bolt bracket that supports diagonal shore/brace to hold wall up until roof structure is in place. Phoenix, Arizona, November 2006.
My Construction Photos > Precast concrete tilt-up construction: Reinforced concrete wall section has been pulled up at its top into near vertical position to form section of outside wall of building. Wall section is heavily reinforced concrete that was cast in horizontal position on top of floor slab of building, which alleviated the need for wall forms. It is lifted by steel cable, hooked to wall at a 8 points to provide force sufficient to break wall free from the slab beneath it and lift it into its final vertical position. Two point support from lifting beams/ harness and pulleys provide independent support to each lifting point. Pipe with screw jacks at end align the wall and support it against wind forces. Workers 3, 5, and 6, from left to right, hold chain/cable with which they will jerk out pens locking the lifting cables to the slab wall, and they will next pull to withdraw pens to separate lifting tools from the wall. Phoenix, Arizona, November 2006.
My Construction Photos > Precast concrete tilt-up construction: Reinforced concrete wall section is pulled up at its top into near vertical position to form section of outside wall of building. As foreman on right signals crane operator to hold position of tilted up concrete slab wall section, workers inside and outside manually position bottom of section to sit on its foundation, forming corner with previously placed adjacent section. Worker on left holds up adjustable shore so it does not drag on ground/slab and impact positioning. Phoenix, Arizona, November 2006.
My Construction Photos > Precast concrete tilt-up construction: Reinforced concrete wall section is pulled up at its top into near vertical position to form section of outside wall of building. Wall section is heavily reinforced concrete that was cast in horizontal position on top of floor slab of building, which alleviated the need for wall forms. It is lifted by steel cable, hooked to wall at a 8 points to provide force sufficient to break wall free from the slab beneath it and lift it into its final vertical position. Two point support from lifting beams/ harness and pulleys provide independent support to each lifting point. Phoenix, Arizona, November 2006.
My Construction Photos > Trench construction/safety: Caterpillar 330CL backhoe/excavator picks up trench shield out of trench and sets it down in horizontal position suitable for it to be picked and transported by forklift. Tucson, Arizona November 2006.
My Construction Photos > Trench construction/safety: Worker in bottom of trench gives hand signals to operator of backhoe/excavator to guide boom of backhoe into position to pull trench box to next position to the left. Note worker remains within trench box safety, and trench box is accessed by ladder at far end.
Caterpillar 623B self elevating scraper doing cut and fill to prepare land for development between Phoenix and Tucson, Arizona. Scraper filled its bowl doing cut and raised bowl to travel. It has now lowered bowl and its ejector is pushing the soil load out the front of lowered bowl to dump the load. November, 2006.
My Construction Photos > Caterpillar 623B self elevating scraper doing cut and fill to prepare land for development between Phoenix and Tucson, Arizona. Scraper filled its bowl doing cut and raised bowl to travel. It has now lowered bowl and its ejector is pushing the soil load out the front of lowered bowl to dump the load. November, 2006.
Caterpillar 623B self elevating scraper doing cut and fill to prepare land for development between Phoenix and Tucson, Arizona. Scraper filled its bowl doing cut and raised bowl to travel. It has now lowered bowl and its ejector is pushing the soil load out the front of lowered bowl to dump the load. November, 2006.
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