Investigation of prestressed anchor retaining systems within the scope FHWA-99-015 and BS 8081:2015

Abstract

As a result of migration from rural to urban areas, city centers are developed and expanded. With the increase of need in the life and business centers need, the decrease in the solid soil to be built and the presence of structures close to being affected from each other geotechnically has been brought economic problems and made deep excavations obligatory. In this study, the examination of the prestressed anchor shoring systems, which is one of the deep excavation support systems, has been carried out in terms of design criteria defined in regulations. Regulations of FHWA-99-015 and BS 8081:2015 and the circular which is published by the Ministry of Environment and Urbanization on 31 August 2018 in Turkey have been taken into consideration for the stability criteria of deep excavation systems. Also, the limiting situations that should be considered in terms of the stability of the shoring system have been investigated in the design. General comparisons of the regulations and standards used in the design of the shoring system and recommendations are given.