Embedment Length of Steel Liner in Different Types of Soil

TLDR: In this paper, a parametric study is carried out to develop design charts for embedment length of liner for different water depths in sand, clay and rock and the comparison between twice the fixity depth and embedment depth is also given.

Abstract: Steel liners are used in the construction of bored cast in situ RCC piles especially in water borne transport infrastructure. Embedment length of the liner is the length between dredge level/bed levels to the termination level of the liner. Sufficient embedment length for steel liner ensures the quality of the pile. The minimum embedment depth of liner is calculated as per IS 2911 using the same procedure as given for piles. A parametric study is carried out to develop design charts for embedment length of liner for different water depths in sand, clay and rock and the details are given in this paper. The comparison between twice the fixity depth and embedment depth is also given.