Pier, foundation construction, concrete construction: Readymix concrete truck chute places concrete for drilled pier through hopper feeding elephant trunk to bottom of pier. A steel H section soldier beam will be inserted into the fresh concrete. Huron Parkway South of Huron River, Ann Arbor, MI, 2005.
Pier, foundation construction, concrete construction: Crew sets hopper and elephant trunk/ tremie to fill drilled pier hole with fresh concrete from readymix truck chute at upper left. The trunk of tremie is inserted into the center of the spiral ring/cage of vertical pier reinforcing steel. A steel H section soldier beam will be inserted into the fresh concrete. Huron Parkway South of Huron River, Ann Arbor, MI, 2005.
Pier, foundation construction, concrete construction: Crew guides soldier beam in position to be inserted into fresh reinforced concrete pier. Lumber has been framed to position beam correctly for retaining wall it will support. Worker on right guides Manitowoc crane operator with hand signals. Huron Parkway South of Huron River, Ann Arbor, MI, 2005
Pier, foundation construction, concrete construction: Crane brings H-section structural steel soldier beam into position above freshly placed reinforced concrete in pier hole. Soldier beam will be lowered and embedded in the concrete a depth of about 2/3 of its length, up to the wood cross-blocking about 1/3 from its top. Huron Parkway South of Huron River, Ann Arbor, MI, 2005
Pier, foundation construction, concrete construction: Crew in mid-rear sets hopper and elephant trunk/ tremie to fill drilled pier hole with fresh concrete. A steel H section soldier beam will be inserted into the fresh concrete. Worker in mid-front is folding another trunk/tremie to be used again. Auger bit to its right drilled the pier now being filled. Concrete readymix truck waits to place another lift of concrete in pier. Huron Parkway South of Huron River, Ann Arbor, MI, 2005.
Pier, foundation construction, concrete construction: Concrete from readymix truck placed by chute in hopper of tremie to fill drilled/ augered reinforced concrete pier for retaining wall. Structural steel H-section will be inserted into pier as soldier beam vertical support for retaining wall. Huron Parkway South of Huron River, Ann Arbor, MI, 2005
Pier, foundation construction, concrete construction: Crane lifts mucking bucket out of drilled pier hole. The dark lower portion of the bucket shows the bottom of the hole is wet. The bucket apparatus will now be moved over flat ground to dump the muck out, so bucket can return to muck again. Huron Parkway South of Huron River, Ann Arbor, MI, 2005
Soil, earth construction: Caterpillar 325L crawler mounted hydraulic boom backhoe excavator places soil fill behind and against the back side of soldier beam supported precast concrete panel retaining wall. Soil is compacted in 6" to 12" lifts/ layers by vibratory plate compactor. Caterpillar 950F wheeled tractor front end loader at rear left maintains soil pile so backhoe can easily fill its shovel to place soil behind wall. In right front is roll of geofabric that is used as inside liner for retaining wall. Huron Parkway, Ann Arbor, Michigan, 2005. 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.
Soil, earth construction: Caterpillar 325L crawler mounted hydraulic boom backhoe excavator places soil fill behind and against the back side of soldier beam supported precast concrete panel retaining wall. Soil is compacted in 6" to 12" lifts/ layers by vibratory plate compactor. Caterpillar 950F wheeled tractor front end loader at rear left maintains soil pile so backhoe can easily fill its shovel to place soil behind wall. In right front is roll of geofabric that is used as inside liner for retaining wall. Huron Parkway, Ann Arbor, Michigan, 2005. 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.
Pier, foundation construction, concrete construction: Readymix concrete truck chute places concrete for drilled pier through hopper feeding elephant trunk to bottom of pier. A steel H section soldier beam will be inserted into the fresh concrete. Huron Parkway South of Huron River, Ann Arbor, MI, 2005.
Pier, foundation construction, concrete construction: Readymix concrete truck chute places concrete for drilled pier through hopper feeding elephant trunk to bottom of pier. A steel H section soldier beam will be inserted into the fresh concrete. Huron Parkway South of Huron River, Ann Arbor, MI, 2005.
Pier, foundation construction, concrete construction: Readymix concrete truck chute places concrete for drilled pier through hopper feeding elephant trunk to bottom of pier. A steel H section soldier beam will be inserted into the fresh concrete. Huron Parkway South of Huron River, Ann Arbor, MI, 2005.
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