Why do I need a Plate Load?
There are several reasons why you might need a Plate Load / CBR Test such as:
- You need to establish the strength of a crane base or piling mat prior to mobilisation.
- You need to test the formation or subgrade to ensure that the design loading can be achieved.
- You need to test placed materials such as capping or sub-base to prove that you have achieved the required compaction.
What is involved in a Plate Load Testing?
The following points will provide a brief outline of the plate load testing process:
- A kentledge (usually an excavator) is used to apply an increasing load upon a specified diameter circular plate to induce settlement.
- The vertical deformation is recorded by settlement gauges and the load is increased at timed intervals.
- The ultimate bearing capacity of the soil can then be calculated from the plate load test results.
- It is also possible to calculate an equivalent CBR value and modulus of sub grade reaction.
Our experienced engineers will advise on the plate diameter required to match the anticipated design load and reaction load required.
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