Measurement of settlements for jet grouting columns

As a result of rapid increase in the density of population, people have been directed to areas that may be problematic in geotechnical terms. Although there may appear many problems in geotechnical terms, one of the problems is settlement that occurs more than expected in Structures due to increased load. Ground improvement methods have been developed in order to solve these problems, and jet grouting method has become the most preferred method since it is generally advantageous. In general, developments in geotechnical sense are obtained empirically. Considering the Earth and its structure, homogeneously mixed types of ground prevent the use of strict rules and formulas. The most important feature of the engineering phenomenon is the comparison of the applied and received values ​​with the formulas developed. In this study, jet grout ground columns application was applied in a residential project in the central district of Sivas province; and after the application, the group piles were analyzed while calculating settlements of pile group quantities with the Koerner and Partos (1974) Method and H. G. Poulos a E. H. Davis Method in the literature. Then, starting from the ground level, some points in the architectural plan were placed in the coordinate system, and the reading values ​​were taken in 3-month periods for the control of the settlements under load. In the data obtained, the values ​​in the literature were compared with the measured values ​​in the application area, and differences were found. As a result of this study that was conducted with the thought of control experiment, it was considered that there might be some deviation errors in the formulas. The aim of this study was to contribute to future studies and to improve the literature more comprehensively.