Flow Chart of Bored Pile Work

Preparation Work

Setting Out

Installation of Temporary Casing

Drilling Works

Koden Test

Inspection: - Center Point - Verticality of Casing - Top Level of Casing Inspection: - Slurry Property - Depth of Pile - Drilling Bucket Inspection: - Verticality of Hole - Pile Diameter

Airlifting- First Cleaning

Installation of Rebar Cage (Including Sonic and Core Tubes, if required) Installation of Tremie Pipe

Airlifting- Final Cleaning

Casting Concrete

Inspection: - Sonic and Core Tube - Rebar Cage - Depth of bored hole using rebar cage Inspection: - Depth of Bored Pile

Inspection: - Slump of Concrete - Air Content - Temperature - Arrival Time of Concrete - Top Level of Concrete

Removal of Temporary Casing

Soil Backfilling

Pile Testing

Test: - Compressive Strength of Concrete - PIT - Sonic Test - PDA - Coring (If Required)