Stability analysis of a coupled structure: a railway tunnel and a road cut slope

Ünlütürk, Burcu
A road-cut slope is planned for the construction of a new highway at Zonguldak province. This slope will be excavated by bench blasting method in close proximity to the No 50 Turkish State Railway Tunnel which is a masonry lined 84 years old tunnel in service. The excavation will continue until –approximately- 56 m horizontal and 55 m vertical distances remain to the tunnel lining. The plane failure risk of the slope and the damage risk of the tunnel are two major risks. Investigating stability of the slope and determination of strains and displacements around the tunnel caused by the rock excavation by using plane strain analysis are crucial to assess the safety of these coupled structures, the tunnel and the slope itself. In this thesis, the stability analysis of the road-cut slope and the probability of any damage on the rock structure around the tunnel and the masonry lining caused by the excavation of the benches are examined with two-dimensional plane strain finite element program RS2 with shear strength reduction technique.


Landslide assessment and stabilization study along the Tarsus - Çamlıyayla provincial road at km: 11+640 -12+080
Ataş, Pelin; Akgün, Haluk; Department of Geological Engineering (2017)
During the road extension works of the Tarsus - Çamlıyayla Provincial Road at KM: 11+640 -12+080, a landslide occurred due to the construction of a steeper slope at the road side for wall construction. The purpose of this thesis is to determine the critical failure location of the landslide and to determine the necessary slope stabilization methods in order to prevent the development of a larger potential landslide that may occur in the future. For this purpose, necessary engineering geological in-situ and ...
Design considerations for modern railway stations; comparing Berlin, Beijing and Ankara
Atak, Zeynep; Elias Özkan, Soofia Tahira; Department of Building Science in Architecture (2015)
High Speed train era in Turkey has started in 2009 with the Ankara-Eskisehir high speed rail line. From 2009 until 2015, a number of high speed railway and new station construction projects haves been implemented. And new high speed rail line projects are in planned. Location of the station in the city, its dimensions, security check points, ticket checking system, the size of the retail places within the station and some other functions are critical for the design of railway stations, however it is realize...
Assessment of slope stability for km: 109+590-128+630 segment of Kırıkkale-Yerköy section (section-2) of Ankara-Sivas high speed railway project
Atar, Elif; Topal, Tamer; Department of Geological Engineering (2019)
Ankara-Sivas High-speed Railway Project is planned to be a part of an arterial railroad that will cross Turkey from west to east. Some slope instability problems occured after the excavation along Kırıkkale-Yerköy section of the project. Purpose of this study is to investigate engineering geological properties of the İncik formation exposed at four cut slopes with failure along the Kırıkkale-Yerköy section, to designate the factors that overbalance the stability of cut slopes and to recommend remedial solut...
Assessment of degradation and stability of a cut slope in limestone, Ankara-Turkey
Oztekin, B; Topal, Tamer; Kolat, Çağıl (2006-03-30)
Due to the rapidly growing population of the city of Ankara (Turkey) and increased traffic congestion, it becomes necessary to widen the Ankara-Eskisehir (E-90) highway, connecting the newly built areas west of the city to the city center. During widening, several cut slopes were formed along the highway route. As a result, some instability problems (small-sized rock falls/sliding, sloughing, raveling) produced detachment zones along a cut slope in highly jointed, folded and sheared limestone, causing local...
Stability analyses of a highway embankment slope failed during Düzce earthquake
Keklikoğlu, Ebru; Bakır, Sadık; Department of Civil Engineering (2002)
In this study, the slope failure of Bakacak during 1999 Düzce earthquake at Bolu Mountain Crossing on Ankara - Istanbul state highway is studied. First, soil parameters at the time of failure are investigated based on laboratory tests and back analyses. Then, these parameters are used to calculate the factor of safety of the slope employing two different methods, namely, limit equilibrium and c-<J) reduction in stress-deformation analyses. Finite difference method is utilized in stress-deformation analyses....
Citation Formats
B. Ünlütürk, “Stability analysis of a coupled structure: a railway tunnel and a road cut slope,” M.S. - Master of Science, Middle East Technical University, 2018.