Akademik Veri Yönetim Sistemi
17th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2019, Reykjavik, İzlanda, 1 - 06 Eylül 2019, (Tam Metin Bildiri)
This paper presents the design, construction and performance of two anchored diaphragm wall projects utilizing Single Bore Multiple Anchor (SBMA) technology within deep alluvial soils; to support deep basement excavations in Turkey. The first project is the Mahall Bomonti Project; where a shoring system composed of 27,500 m2 diaphragm wall with a total depth of 22 m to 28 m supported by 3-levels to 5-levels of SBMA was designed and constructed in order to support one of the deepest basement excavation of 18.5 m in Izmir, Turkey. The second project is the Ferko Line Project; where a diaphragm wall with a total depth of 20 m supported by 1-level of SBMA was designed and constructed so as to support one of the largest and deepest basement excavations in very soft soil conditions of Kağıthane region in İstanbul, Turkey for the first time. Additionally, 7-rows of jet grout columns were executed in order to improve the soil at the toe of the diaphragm wall. Within the scope of this project, 12,500 m2 of diaphragm wall, 8,900 m of SBMA and 62,400 m of jet grout columns were completed. In both projects displacement of the reinforced concrete diaphragm walls were analyzed using finite element methods and compared with measurements of lateral displacements monitored during the course of excavation.