ANALYSIS AND DESIGN OF INCLINED PILES USED TO PREVENT DOWNHILL CREEP OF UNSATURATED CLAY FORMATIONS

This paper present an analysis which may be used to obtain a rational design of a system of inclined piles used in preventing downhill creep of unsaturated clay formations. It uses two simple and relatively eas y to measure parameters (an estimate of the maximum downhill creep tog ether with a knowledge of the depth of the so called active zone) to c alculate the required section size and the optimal spacing (pitch) of the piles for a desired efficiency of the system as a whole. Design ch arts are provided to facilitate the process.