HORIZONTAL RESISTANCE CHARACTERISTICS OF ROOTED EARTH RETAINING WALLS WITH VARIANCE OF FLEXURAL RIGIDITY IN LENGTH DIRECTION

Abstract

 Jacket-type earth retaining walls are consist of jackets and steel pipe sheet piles. AU-shaped structure have proposed which have additional steel pipe sheet piles in a direction perpendicular to the direction of extension of the wall to increase the flexural rigidity of the entire structure. In this study, the horizontal resistance behavior of high flexural rigidity pile and effect of reinforcing wall’s rigidity partially are considered by model loading experiments. As a result, high rigidity model piles tend to fall over and pull against the ground with increasing load. It is proved that the U-shaped structure with partial high flexural rigidity resists more than I-shaped one with the same flexural rigidity with less steel materials.