Evaluation of gravity retaining walls from jet grouting piles installed in sands

Abstract

When height of retaining walls is small it is rational to install gravity retaining walls. The jet grouting technology often is used installing piles in the sand. Pile diameter can be varied from 0.50 to 1.20 m using single-phase jet grouting with 30÷40 MPa pressure. This type of piles applied for the installation of retaining walls too. Low retaining wall constructed using jet grouting pile should be treated as gravity walls. Diameter of the jet grouting piles from which are constructed retaining walls depend on the choice of wall height and from internal friction angle in sand. Influence of interaction between the wall surface and soil on stability is from 10% to 35%. Using of jet grouting technology formed gravity walls allow reduce the volume of mining amount and the installation duration.