2011 Volume 67 Issue 4 Pages 407-421
Pulling out steel sheet pile often harmfully deforms neighboring ground because of adhesion and skin friction between the pile and the ground. Steel H piles used in soil cement retaining walls could hinder additional construction and therefore should be removed. However, they usually are not removed due to high adhesion. To solve these problems, we developed new paint and sheet absorbent polymer materials for reducing the adhesion and skin friction. The performance of the materials was discussed and the effectiveness was confirmed through a series of laboratory tests and field tests.