The tests are particularly suited to determining the strength of ground for temporary structures such as crane pads, as well as spread foundations for building slabs, wind turbines, electrical sub stations etc.
Our plate test site teams have access to a full suite of plates:
*600 mm diameter plate is only carried as required. It requires a two-man crew due to its weight.
Our plate test site teams carry equipment suitable for testing up to 400 kN/m2 or 40 tonnes / m2 on a 450 mm diameter plate. Higher loads can be tested with additional notice.
Accuracy is essential! - Geotest always use a fully calibrated load cell to monitor pressure on the plate. This is far superior to a calibrated pressure system which can vary significantly over time.
Plate Bearing Tests (PBTs) being carried out for a raft foundation at a supermarket in Cornwall. Testing was carried out for a private developer and used to obtain Ground Bearing Pressure and an indication of settlement.
Plate Bearing Tests (PBTs) were carried out at a dockyard in Cornwall. Testing was carried out by the dockyard owner to establish the maximum safe lifting loads in a number of locations around the dockyard, for the cranes that frequently visit the site. The testing was undertaken to establish the ground bearing pressure on site.
Plate Bearing Tests (PBTs) being carried out at a dockyard in Cornwall for a luxury yacht manufacturer. The testing was required prior to lifting the mast onto the largest single-masted yacht in The World! The crane operator was present during the testing (supplying a crane for kentledge). The testing was required to establish the size of spreader plates required beneath each crane outrigger to prevent the maximum safe bearing pressure from being exceeded.
Work to install the base of an Anaerobic Digestion Tank following Plate Bearing Tests (PBTs) to establish the Modulus of Subgrade Reaction on the ground. This enabled the engineer, a national renewable energy company, to design a sufficient layer of stone to prevent movement in the base of the tank.
Close view of a Plate Bearing Test (PBT) in Berkshire. This setup was using a 300 mm diameter plate, to assess ground bearing pressure for a Wind Turbine.
Close up view of a Plate Bearing Test (PBT) in Kent. This setup was using a 300 mm dimeter plate, to assess the safety of a crane pad prior to lifting.
Installation of clean gravel beneath a proposed Anaerobic Digestion Tank in Devon, following plate bearing tests to establish the modulus of subgrade reaction. This enabled the engineered to establish the thickness of stone required for the project.
Plate Bearing Tests being set up in Hampshire for a major reinforced plastics company. The testing was carried out at various points in the yard to establish the strength of the ground, and therefore the maximum load that a crane could safely lift. Geotest were also able to make recommendations on ways of preventing degradation to the concrete yard.
Installation of clean gravel beneath a proposed Anaerobic Digestion Tank in Devon, following plate bearing tests to establish the modulus of subgrade reaction. This enabled the engineer to establish the thickness of stone required for the project.
Plate Bearing Tests (PBTs) being carried out at a wind farm in Cornwall for a repowering project. The client was a national renewable energy company. Testing comprised carrying out a series of Plate Bearing tests in the base of trial pits.
Plate Bearing Tests being carried out directly from a crane in Cornwall. This testing was carried out on a construction site prior to lifting heavy steel beams into a building undergoing refurbishment. The testing established that the ground was sufficiently strong to be able to support the crane during the lift.
Plate Bearing Tests being carried out at a wind farm in Cornwall to establish the suitability of a crane pad prior to lifting and replacing the Nacelle. The testing was required by the crane operator to ensure that the ground was safe prior to lifting.
Close up view of the Plate Bearing Test (PBT) setup, before the excavator was moved into position. Testing was carried out for a proposed wind turbine. Initial testing had been carried out on the base of the foundation, to confirm ground bearing pressure. A second phase of testing was then carried out on the crane pad prior to lifting the components into place, to establish that the ground was suitable for the lift.