Featured with high efficiency and reliability, FCO series casing oscillators are designed to drive casing in depth and under hard working conditions. FCO provides two options of casing oscillators, short type and long type, with the former fit to crawler-based rotary drilling rigs and the latter to cranes. Separate hydraulic power pack is always available.
The construction sequence as below:
Phase1: Casing installation
Firstly with the rotary driver and later by oscillating and pushing the
casing into the ground with the
oscillator.
Phase2: Drilling
Drill with buckets, auger, core barrel. Stabilize the wall of the bore with segmental casings.
Phase3: Install reinforcement
Cage with the auxiliary winch of the drill rig into the borehole stabilized temporarily by the casing.
Phase4: Pour concrete
Through the tremie pipe into the cased borehole.
Phase5: Extract the casing
During concreting with the oscillator first, later with the rotary drive.