ABSTRACT

This paper illustrates that the bearing capacity of granular soils used as foundation of explosively driven piles results from two processes, one being the initial displacement of soil during explosion drilling and the other the subsequent secondary displacement which is induced mechanically by loaded piles. The practical issues have been addressed of the bearing capacity and settlement analysis of granular soils used as foundation of explosively driven medium- and large-size piles. For the first time ever, the maximum physically possible bearing capacity has been achieved in the granular soils used as foundation of explosively driven medium- and large-size piles with a diameter of 2.8 m and larger.