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

ITA Croatia

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

ITA Croatia

ARCHEOLOGICAL EXCAVATIONS

RAILWAY PROJECTS

ITA Croatia

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)