COSTS OF STATNAMIC LOAD TESTING
Many factors influence the cost of load testing including required test capacity, required instrumentation, test type, single or multiple load cycles, special work hours, union agreements, construction phasing, etc. In addition load testing costs are often skewed or front loaded because it is an early work item and can provide necessary cash flow to a contractor at the beginning of a project. This leads to the general perception that load testing is expensive. When in fact load testing, if properly designed, can lead to significant costs savings.
Overall, Statnamic testing is more economical than static testing and is always much quicker because reaction piles and a reaction system do not need to be constructed. Moreover, the actual test time is much quicker and the monitoring and report is usually included in the cost of the Statnamic test. The cost for Statnamic testing, however, begins to become significantly more economical than static testing when multiple load tests are performed on a site or when the test loads are greater than 100 tons.
Statnamic load testing does not require installation of reaction piles, reaction beam system, no hydraulic jack, and no reference beam.
Faster to set up and perform test than static testing.
More economical than static testing and.
A direct measurement of load and displacement suggests that the precision of measurement of Statnamic testing is higher than those measuring only strain or hydraulic jack pressure.
Embedded strain instrumentation can be installed to allow measurement of load distribution, toe displacement and accurate separation of side shear and end bearing components.
It requires no special construction procedures so installation is more representative of actual production pile construction. This allows Statnamic to be used for random quality control testing and for problematic foundations.
Side effects from installation of reaction piles or reaction pile spacing relative to the test pile are completely eliminated.
Capable of loading to 5,000 tons or greater with same equipment.
Cyclic loading is performed very quick and easy.
It is the most repeatable of any test method.
Statnamic analysis is not effected by uncertainties in pile properties because top load and displacement are measured directly with a calibrated load cell and displacement sensor. This makes it particularly attractive over dynamic methods for testing non uniform piles.
Does not require complex user dependent signal matching analysis to which there is no unique solution.
The duration of the axial Statnamic test is longer than the natural period of the foundation element precluding formation of stress waves. The entire foundation remains in compression during the test, Therefore, no damaging tensile stresses exist like those of a dynamic test.