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ITA Croatia
TÜLİN SOLAKTemelsu International Engineering Services Inc.
Congress centre “Lacroma”, Dubrovnik
April, 7-9, 2011
ITA Croatia
“TUNNELING ACTIVITIES IN TURKEY”
ITA SEE 2011, Scientific Symposium
ITA Croatia
TUNNELING ACTIVITIES IN VARYING FIELDS IN TURKEY
ITA Croatia
HEPP PROJECTS
ITA Croatia
HIGHWAY PROJECTS
BOLU TUNNEL ON ANKARA-ISTANBUL MOTORWAY
FAULT RUPTURE 1999
FAULT RUPTURE 1944
ITA Croatia
HIGHWAY PROJECTS
GEBZE-ORHANGAZİ-İZMİR MOTORWAY (INCLUDING İZMİT BAY CROSSING) •Total lenght :421 km
•2 tunnels in total lenght of 5150 m
• suspended bridge L~ 3 km and span=1700m
( second longest bridge of this typology in the world)
•contract type: BOT
•construction period : 7 years
• operation period 22 years and 4 month
•estimated cost :8-11 billion US $
Current Bursa Ring Road
Samanlı Tunnel L=3.4 km
Belkahve Tunnel L=1.75 km
ITA Croatia
RAILWAY PROJECTS
Speed Railway LinesAnkara-İstanbul
Ankara-Konya
Ankara-Sivas
Ankara-İzmir
Bursa-Osmaneli
Ankara-Kayseri
Halkalı-Kapıkule
-----Line under operation---- Line under construction---- Line at planing stage
Second stage in Ankara-Istanbul Line
•40 tunnels have been excavated
with NATM
•Longest tunnel at Ankara-Istanbul
line 8 km will be excavated with TBM
SPEED RAILWAY PROJECTS
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RAILWAY PROJECTS
KARS KARS -- TTİİFLFLİİS DEMS DEMİİRYOLURYOLU
MEVCUT HAT
REHABİLİTE EDİLECEK KISIM
SINIR’DAN AHİLKELEK’E
(29 KM)
KARS’TAN SINIR’A (76 KM)
Rehabilitation in Georgia
Construction in Turkey 76 km
Construction in Georgia 29 km
Present line
Tunnel to be constructed in Georgia 2070 m
Tunnels to be constructed in Turkey 6190
SILK RAILWAY PROJECTKARS-TBILISI-BAKU RAILWAY PROJECT
ITA Croatia
RAILWAY PROJECTS
BOSPHORUS TUBE TUNNEL CROSSING-MARMARAY
Ayrılıkçeşme
Yenikapı Station Sirkeci Station
Uskudar Station
European sideİstanbul Bosphorus Asian side
Kazlıçeşme Ayrılıkçeşme
Worlds deepest immersed tunnel H=60 m
L=1.4 km
Bored tunnels with TBM L=9.8 km
Cut and cover structures L=2.4 km
3 underground stations
75000 people/hour/direction
Total lenght of the line : 76 km
Planned date for operation: October 2013
ITA Croatia
RAILWAY PROJECTS
SIRKECI STATION SHAFT
Ayrılıkçeşme
ÜSKÜDAR STATION AREA
PORTAL STARTING POINT OF TBM
ITA Croatia
RAILWAY PROJECTS
Ayrılıkçeşme
20 -
18m
Settling the element until -15m
Marmara Sea Side Black Sea Side
8.6m
15m
IMMERSING BARGE
SETTLING THE ELEMENTS
BACKFILL CROSSECTION
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ARCHEOLOGICAL EXCAVATIONS
RAILWAY PROJECTS
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RAILWAY PROJECTS
BOSPHORUS TUBE TUNNEL CROSSING
PAST EARTQUAKES
GROUND IMPROVEMENT AT THE TUNNEL BASE SEISMIC JOINTS
ITA Croatia
URBAN TRANSPORT PROJECTS
ISTANBUL STRAIT ROAD CROSSING
•5.4 km bored tunnel (3.3 km undersea)
•1.8 km to Marmaray
•1.1 billion $, BOT
•TBM,NATM, Open cut
•6. largest TBM L=160 m Dext=12.4 m
advance 10 m/day 65 million $
•61 m water + 45 m rock
•Construction time: 4.5 year
•Operation time: 26 year
Marmaray
Istanbul Straıt Road Crossing
European
side
Asian
side
Marmara sea
ITA Croatia
CONCLUSIONS
•DUE TO SEVERAL REASONS, TOPOGRAPHICAL, ECONOMICAL,
ENVIRONMENTAL ETC, TUNNELS ARE ESSENTIAL IN TURKEY.
•TURKEY IS LOCATED AT AN EARTQUAKE ZONE AND TUNNELS
SHOULD BE DESIGNED ACCORDINGLY.
•IT MAY BE NECESSARY TO ESTABLISH JOINT VENTURES WITH
EXPERIENCED COMPANIES FROM OTHER COUNTRIES FOR
TECHNOLOGY TRANSFER
•IMPORTANT PROJECTS ARE FINANCED WITH PPP MODEL (BOT, BO)