Bored piles are an effective product with many applications in foundation and civil engineering. Temporary and permanent steel casings are used for a number of engineering reasons.
A casing is installed by either driving rotation, oscillation or vibration, soil drilled out using specialised tools, and additional lengths of casing(s) jointed and installed to a predetermined depth. Reinforcing steel is then lowered into the hole which is then filled with concrete. Temporary casings are then recovered.
Keller uses a variety of quality assurance methods for our products including integrity testing, bottom bi-directional pile load tests, digital recording and logging of the execution parameters.