Helical CIDH piles installed using a safe, quiet, and vibration-free drilling technique similar to a conventional helical pier, only larger in diameter, and with higher load-bearing capacity. A powerful and compact drill rig advances the helical steel casing into the ground by simultaneously applying 20 to 50-meter tons of torque and 20 tons of crowd force.
Applications most well suited for CIDH Piles
- Restricted access sites
· Projects with a small footprint
· Limitations on headroom (rigs can work under 17-feet)
- Vibration sensitive sites
- Noise restricted sites
- Small quantities of piles (inexpensive and fast mobilization)
- Sites with contaminated soil or groundwater
- CIDH are drilled, full displacement, cast-in-place concrete pile.
· No spoils are created during drilling.
- Installed by small, powerful, tracked-mounted drill rigs.
- Restricted access capability.
- Low noise and vibration free installation.
- High load bearing capacity (compression, tension & lateral).
- Satisfy seismic design requirements.
- High degree of quality and ease of inspection.
- Very safe method of pile installation.
- Widely accepted in the US; commonly used by CALTRANS.
- Approved by the City of Los Angeles.
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