Ground Deformation Control In Ankara Batıkent Mesa Region: Metro Line Control

Authors : Hüseyin YAŞAR, A Hüsnü ERONAT

Pages : 86-92

Doi:10.30897/ijegeo.1209886

View : 27 | Download : 37

Publication Date : 2023-09-30

Article Type : Research Paper

Abstract :Subway systems in large cities play a crucial role in enhancing the sustainability and livability levels of urban areas by offering a solution to heavy traffic and transportation problems. Subway tunnels are critical transportation infrastructures that are constructed to serve residential areas, and thus, they have a direct relationship with residential areas in terms of construction and operation. This study is designed to generate precise data by analyzing ground deformation of metro systems using the Persistent Scatterer insert ignore into journalissuearticles values(PSI); Interferometry method and utilizing free dataThe Batıkent-Törekent metro line in Ankara is identified with the M3 code. At the location where M3 metro passes, ground deformation has been detected. In the analysis of the relevant location, both ascending and descending Sentinel-1 satellite datasets were used. The StaMPS insert ignore into journalissuearticles values(Stanford Method for Persistent Scatterers);/PSI insert ignore into journalissuearticles values(approach was utilized in the study. It was found that the results obtained from the ascending datasets were more sensitive. Observations were made in two different periods using ascending datasets: 2015-2016 and 2017-2022. Deformations were observed in the Line of Sight insert ignore into journalissuearticles values(LOS); direction in the locations where rail systems and tunnels were present. Eight months after the observation, due to the ground deformation in the area, passenger safety was at risk, and a ground strengthening work was carried out, resulting in a 16-day shutdown of the metro system in this location. The results of this study provide concrete contributions to the literature on the possibility of accurate ground measurement using free data
Keywords : zemin deformasyonu, raylı sıstemler gözlemi, batıkent, zaman serisi