In this paper, the behavior and performance of two instrumented barrette piles socketed in gravel formation in Taipei are evaluated based on the results of axial loading tests. The tests include two compressive tests conducted on the barrette piles of 44m long. One of the piles with toe grouting was socket 6m into gravel layer and the other pile without toe grouting was socket 3m into gravel layer. The load versus displacement curve at the pile head and t-z curves along the shaft, especially for the part socketed in gravel layer, are main concerns and are presented and discussed in the paper. The t-z curves interpreted from the measured data along depth are also simulated by the hyperbolic model.