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This paper presents the results of two full-scale tests on axially loaded bored piles socketed in a conglomerate rock mass. The piles are 1.0 m and 0.9 m in diameter with a rock socket depth of 2.0 m and 3.0 m. Measurements during testing include continuous monitoring of the force at the top of the pile (load cell), settlement of the pile top (LVDTs), and pile deformations (strain gauges and extensometers). One pile is constructed as a shaft and end bearing, and the other as a shaft socket. In addition to the input data on the intact rock's uniaxial strength, the pile shaft's roughness was also measured on-site. The field test results show that most of the external load is transferred through the upper half of the shaft embedded in the rock, with a sharp decrease of the axial loadin depth. One of the static tests was simulated numerically with explicitly defined shaft roughness and intact rock strength parameters determined independently in the large shear box. Numerical modeling of a full-scale static load test shows good agreement with experimental results and provides insight into the pile-rock interaction mechanism during axial load increment.
