Bearing Capacity and Settlement of Pile Based on Cone Loading Test

摘要

The Cone Loading Test (CLT) consists in stopping the static penetration at a desired level and carrying out a loading of the cone by successive steps. Measurement of the settlement of a cone submitted to incremental loading allows the determination of a modulus correlated to those obtained using laboratory tests or derived from other in situ tests. This test can be carried out with standard static penetrometer equipment. Considering that the cone of the penetrometer is a reduced model pile, a direct outcome of the CLT test is its ability to be a tool for foundation design. For this purpose, a direct method using the cone resistance and limit sleeve friction of the CLT test was proposed to calculate the bearing capacity and predicting the settlement of a pile. This method is a new approach to transform the CLT test curves of cone loading and friction mobilization in load-displacement curve of a pile (t-z curves).