Vibrocorer (3m-12m)

Description

OSIL’s  Vibrocorer has been designed as an easy to use, easy to transport modular system capable of collecting cores up to 12m in length.

Two large electrical motors power two concentric weights, which produce the necessary vibration. Their nominal frequency is approximately 50 Hz. The sealed Vibrocorer head housing for the motors is designed to operate in water depths of up to 600m.

The modular system is easily assembled dockside or on the vessel itself into either a 3m, 6m, 9m or 12m system before deploying over the stern.

Once the unit is on the sea floor the high power vibrator motors are engaged and drive the core barrel with PVC liner into the bed.

The cutting shoe and core catcher have been specifically designed to minimise the sample disturbance. The unit has been designed for easy horizontal recovery on to the vessel and then easy recovery of the core barrel once back on deck.

The standard Vibrocorer is a high power modular system that can be quickly and easily deployed, delivering a well defined sample of 96mm diameter.

Depending on the depth of operation, a suitable winch is delivered which contains the umbilical between the vibrocorer and the control unit. This ruggedized control unit is designed to operate in all weather conditions, and in salt water environments.

OSIL are also able to produce a low power version for less-compact sediments, utilizing only one electric motor to produce the vibration.

Features

Frame

•Base Plate

•Support Legs

•VibroCorer Frame (3m sections)

•VibroCorer Head fitted with high power vibrator motors

Coring

•Corer Barrel 114mm OD

•Core Cutter

•Core Catcher

•Liner

Surface

•Armoured Deck supply cable (415V)

•Direct Online Starter Box

•Armoured High Power Vibrocorer cable (non load bearing)

Operational Dimensions

Standard 

Lightweight 

 

3m unit

6m unit

9m unit

12m unit

Height

3.75m

6.75m

9.75m

12.75m

Weight 

1450kg

1800kg

2150kg

2500kg

Weight

900kg

1250kg

1600kg

1950kg

Width Tower

Width Base Supports

Power Supply

Start up/Operational Current

 

Vibration Force

1.2m

5.0m

415V 3 phase supply

2.7kW motors

43A/8A

44kN

5.0m

1.0m

380V 3 phase supply

1.8kW motors

28A/4A

30kN

Optional Sensors

Inclinometer

Penetration rate

Penetration depth

Additional sensors are available on request

Data Sheet

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