Box Corer T-Bar CPT System
Box Corer T-Bar CPT System
Using the Datem Box-Corer T-Bar CPT system with our T-Bar cones enables fast and accurate assessment of recovered sub-sea soil samples while still in the box corer.
Automated control through Datem’s bespoke Control & Acquisition system allows for multiple cycles of push and retract in one test, while the system is mechanically protected by user preset values for maximum T-Bar load and Cone Tilt. The system provides a real-time display of all the information transmitted from the T-Bar Cone and the Thruster. At 2cm/sec. this records every 1mm of penetration, while storing all of the data for later analysis.
The system is built to the highest standards featuring a combination of high performance marine stainless steel and engineering plastics for good performance and durability. A positive mechanical drive system with realtime speed control maintains constant penetration speed throughout the full load range.
Operating at Safe Extra Low Voltage with control interlocks ensures safe operation at all times.
The system comprises of a number of bespoke parts that all work together to form the system. It is designed to push a Datem 3005 T-Bar or Ball Cone in to a soil sample recovered from the seabed by a Box-Corer to obtain geotechnical data. The System consists of all the parts required to undertake these tests, with the exception of the Box-Corer. The main components are the Thruster, Thruster Base, Remote Control Box and associated lead, Interface Box and Power Lead, PC/Laptop, Deck-lead, Control &
Acquisition Software, and bespoke transit cases.
A spares package is also available.
The software, developed from the Datem Neptune Control and Acquisition software, is easy to use and would be familiar to any Neptune operator. It has similar controls, along with additional programmable features such as number of cyclical pushes. The Software displays all the T-Bar Cone and Thruster data in real-time while recording the data for later analysis.
The Datem 3005 T-Bar Cone can be used on the Neptune 3000 or the Box-Corer T-Bar system to generate all the geo-technical soil data. These are manufactured to very high physical dimensional tolerances in order to meet strict miniature cone penetrometer testing guidelines. The T-Bar Cone contains sophisticated electronic systems that fulfil precision power stabilisation and signal conditioning functionality.
The Cone features high precision load sensors for the T-Bar/Tip and the Friction Sleeve, along with an Inclination Sensor to monitor the Cone’s conical angle from a vertical datum point.
The Cone sends all the sensor data through the system using RS485 communications. Every cone is factory calibrated and the calibration data file is saved on-board in the cones own non-volatile memory.
The Cone can be fitted with a 25cm² or 50cm² T-Bar, or a 50cm² Ball depending on soil conditions.