The results of strengthening the foundation with a bored pile with an enlarged pile base

Abstract

The article presents the results of static tests of a strip foundation fragment, strengthened with a bored pile, which has an enlarged pile base at its lower end. To evaluate the results obtained, tests were also carried out for the static load of a strip foundation fragment without strengthening with a bored pile with an enlarged pile base and a separately located bored pile with an enlarged pile base. According to the data obtained during tests for static load, dependence graphs were constructed: settlements of a strip foundation fragment without strengthening with a pile with an enlarged pile base from the pressure under its toe and settlement of a bored pile with an enlarged pile base from the static indentation load. As a result, it was found that the use of a bored pile with an enlarged pile base as strengthening of a strip foundation fragment made it possible to increase the maximum allowable pressure under the toe of a strip foundation fragment on the ground by an average of 25% and reduce the settlement of a strip foundation fragment by an average of 43%.