Dry-process bored pile installation steps using a tripod rig
Detailed process of dry bored piling: setting tripod rig, casing installation, bucket auger boring, rebar cage placement, concrete pouring, and casing withdrawal.
1. Rig positioning and temporary casing installation
The tripod rig is set precisely over the survey stake marking the pile center and leveled using a plumb line. A starter bore is made using a cylindrical hammer to a depth of 1-1.5 m before installing temporary casing.
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