Geoquip Marine •  GMC200 Seabed CPT Logo

Geoquip Marine • GMC200 Seabed CPT

CPT System
Seabed CPT
Equipment Snapshot
Product
GMC200 Seabed CPT
Manufacturer
Geoquip Marine
Model/Series
GMC200
Procurement
Equipment & Operator
Overview
Geoquip Marine have developed a 200kN Seabed Cone Penetration Testing (CPT) system (GMC200) capable of operating in water depths up to 2,000m providing a push capacity of 200kN (20t). This enables the recovery of in situ soil engineering data to a depth of 40m or more below the seabed (depending on soil conditions).

The GMC200 unit has a subsea hydraulic power unit (HPU) which is mounted on the subsea frame and provides power to the chain drive system (CDS) to push/pull the CPT string and clamping force onto the CPT string by means of hydraulic cylinders.

Key Features
  • 200kN (20t) thrust capacity
  • Depth rating to 2,000m
  • Chain drive system (CDS)
  • Penetration to +40m below seabed (depending on soil conditions) 
 
Thrust Machine
Depth Rating
2,000 m
Drive System
Continuous Chain Drive
Push Capacity
200 kN
Maximum thrust force
Penetration Length
40 m
Nominal penetration depth below seabed (subject to inherent soil conditions and operations)
Penetration Speed
20mm/s
Retraction Speed
20mm/s
Cones, Modules & Accessories
The GMC200 Seabed CPT system provides a continuous profile of tip resistance, sleeve friction and pore water pressure, which can be used for the derivation of shear strength in cohesive soils and the relative density of non-cohesive soils. The system has the ability to operate a range of cone sizes and optionally seismic CPT cones, T-bar and ball penetrometer equipment.
 
Compatible Cones & Modules
10 cm² Cone15 cm² ConeBall PenetrometerSeismic ModuleT-Bar Penetrometer
Data Acquisition System
Once on location offshore, the GMC200 Seabed CPT unit is lowered to the seabed and the test is commenced with the rod penetrating the soil at a rate of 20mm/s. Data is relayed to the operator onboard in real-time where it is then processed.
 
Launch & Recovery Systems
The GMC200 Seabed CPT system is designed to enable the unit to be mobilised onto a vessel-of-opportunity or onto an existing Geoquip Marine geotechnical vessel. This versatility enables the system to be deployed quickly and efficiently to the port of mobilisation.
 
Documents
Contact Us
Phone
+41 71 227 40 00
Related Equipment
Geoquip Marine have developed a 200kN Seabed Cone Penetration Testing System (GMC201) capable of operating in water depths up to 800m (which can be extended to 2,000m on demand), providing a push capacity of 200kN (20t). This enables the recovery of in situ soil engineering data to a depth of 40m or more below the seabed (depending on soil conditions).... More

The GMC201 Seabed CPT unit has two electrical motors which power the chain drive system (CDS) and the piezoelectric cone (PCPT) into the soil.

Key Features

200kN (20t) thrust capacity

Depth rating to 800m (2,000m optional)

Electrically-driven chain drive system (CDS)

Penetration to +40m below seabed (depending on soil conditions)