Maximum weight in air
Tower base footprint
Vibrating head unit
Electrical power umbilical
Quaternary Resources Pty Ltd
To 300 m
1 – 6 meters
6.8m (6m core barrel)
3.8m (3m core barrel)
Demountable tubular aluminium and stainless steel construction with quick
release scaffolding fittings on three collapsible legs
3.5 m diameter
Aluminium/steel watertight head containing two 3-phase electric motors.
Weight 140kg. Vibration frequency: 1000/1250 rpm with 50/60 Hz
Standard 100 m (up to 350m), Siemens Hydrofirm cable with Seacon marine cable connectors, abrasion protection and flotation buoys at the tower end.
380/440 VAC 3-phase power
Running power 3-6 Amp
Shipboard 3-phase power or 8-10kVA 3-phase generator
Surface control system consisting of a watertight safety control box with residual current device (RCD) and thermal overload relay, a hand control on/off switch and waterproof Seacon marine cable connectors
All steel parts are hot dip galvanised. All other components are high quality aluminium and 316 stainless steel.
Typically use extruded aluminium tube - Alloy 6062 or 6060, Temper 5. 80mm OD, 2mm wall thickness. Can also use 3” OD, 1.6mm wall thickness stainless steel 306/316 tube with or without flat plastic liner and 80mm OD PVC tube.
Stainless steel bit with stainless steel shim fingers. Pop rivet to core barrel.
Up to 6m in well-sorted, compacted sand. Greater penetration in muddy
sediments, less in semi-consolidated gravels or stiff clays. Typical time for full (6m) penetration in compacted fine to medium grained sands: 1 - 2 minutes.
Core is retained in disposable aluminium barrels or reusable stainless steel
barrels with flat plastic liner. The aluminium can be cut to suitable lengths
and sealed for storage and transport or cut longitudinally for on-site
Remote: from ships of opportunity of ~ +15m length or greater for work in exposed marine environments to water depths of 300m. Barges from 8m length are suitable for protected water coring. Vessels must have either hydraulic or electric winch/capstan capable of a minimum of 1 tonne pull or hydraulic crane (HIAB type with winch) with same performance
Complete system with spares and consumables (excluding core barrels) are packaged into 2.0m long x 1.0m wide x 1.0m high crate for airfreight/seafreight worldwide.
Total weight around 600kg