The
specifications listed below are for the S.E.A.S. Model 450 Vibrocorer.
There are some differences in frame and motor configurations
between this and previous models, however, the operational concepts are the
same.
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Photos of
Vibrocore Operation
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Vibrator
Unit: |
Aluminium
/ Steel watertight head containing two 3-phase electric motors.
Weight
= 110kg
Vibration
frequency: 1000
rpm with 50 Hz or 1250 rpm with 60Hz.
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Clients
and Projects
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Power
Supply: |
415
Volt 3-phase .
5
KVA required.
220
Volt 3-phase power may be used. The motor connections in the Junction
boxes on top of the motors are changed as per the diagram in the lid of
the junction boxes for lower voltages.
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Contact Us
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Switch
Gear: |
Circuit
Breaker 3 VE 1000.
Watertight
marine connectors.
Control
Box: consists of 2 units: circuit breaker unit which connects directly
to power supply and an external ON/OFF switch box.
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Home
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Tower: |
Demountable
tubular aluminium construction with quick release scaffolding fittings
for legs. Can be configured for cores from
1.0m to 6.0m long.
Typical
operating height 6.8m for 6.0m core barrels and 3.8 for 3.0m core
barrels (see photos of 6m and 3m tower
configuration).
Weight
incl. lead weights installed: c. 100kg (not incl. Vibrator Unit).
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Vibrator
Unit
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Core
Barrels: |
Aluminium
extruded tubing: Alloy 6062 or 6060, Temper 5.
Standard:
76mm ID, 80mm OD, 2mm-wall thickness.
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| Core
Catcher/Cutters: |
Steel
bits with spring steel leaf catchers.
Fit
76mm ID barrel. Rivet to
core barrel.
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| Performance: |
Penetration:
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: 0.5 - 2 minutes.
Core
penetration is marked on the barrel by the gate at base of the tower.
Core
is retained in disposable aluminium barrels, which can be cut to
suitable length for transport and also cut longitudinally for on-site
analysis. Split
core halves can be archived by wrapping in cling wrap and storage in
plastic sleeves.
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Assembled
Vibracorer
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| Operation: |
Remote:
from ships of opportunity of ~ 50ft (+15m) length or greater for work
in exposed marine environments to water depths of 150m.
Barges from 10m length are suitable for protected water coring.
Vessels must have either hydraulic or electric winches capable of
a minimum of 3 tonne pull or hydraulic crane (HIAB type with winch) with
same performance.
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| Transport: |
The
vibracorer is easily transportable in crates.
Total
mobilisation weight is typically 500kg, excluding
core barrels.
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