TY - GEN
T1 - A consolidation grout application in a water conduit tunnel in Istanbul
AU - Tunçdemir, H.
AU - Güçlü, E.
AU - Bayram, O.
AU - Bahçivan, E.
PY - 2013
Y1 - 2013
N2 - Population increments in big cities have resulted by problems of people such as transportation, health, service and drinkable water necessities etc... In order to meet utility water requirements, underground tunnels are sometimes burrowed for transmitting water from far away resources. One of them was the Ayazaga conduit tunnel in Istanbul excavated by conventional tunnelling in a rock media from poor to extremely poor formation. After excavating and properly supporting media, a compact grout application is performed before a "consolidation grout phase (CGP)", that is subject of this paper. In CGP, A set of holes for every 3 m approximately, which filled out by cement injection, were drilled from pipe inside in to the compaction grout shell first and support shell in second till going through 0.5m in formation third. An undergraduate thesis examining this application and process, focused on a portion of current tunnel from the CGP point of view. Nevertheless, rock parameters on the tunnel face were recorded by side geologists. When these data and amount of the injected CGP are analyzed, some remarkable relationship can be seen between formation and amount of CGP injections that may help practitioners to predict injection levels and cost evaluation in the similar formations.
AB - Population increments in big cities have resulted by problems of people such as transportation, health, service and drinkable water necessities etc... In order to meet utility water requirements, underground tunnels are sometimes burrowed for transmitting water from far away resources. One of them was the Ayazaga conduit tunnel in Istanbul excavated by conventional tunnelling in a rock media from poor to extremely poor formation. After excavating and properly supporting media, a compact grout application is performed before a "consolidation grout phase (CGP)", that is subject of this paper. In CGP, A set of holes for every 3 m approximately, which filled out by cement injection, were drilled from pipe inside in to the compaction grout shell first and support shell in second till going through 0.5m in formation third. An undergraduate thesis examining this application and process, focused on a portion of current tunnel from the CGP point of view. Nevertheless, rock parameters on the tunnel face were recorded by side geologists. When these data and amount of the injected CGP are analyzed, some remarkable relationship can be seen between formation and amount of CGP injections that may help practitioners to predict injection levels and cost evaluation in the similar formations.
UR - http://www.scopus.com/inward/record.url?scp=84878615167&partnerID=8YFLogxK
U2 - 10.1201/b14769-261
DO - 10.1201/b14769-261
M3 - Conference contribution
AN - SCOPUS:84878615167
SN - 9781138000940
T3 - Underground - The Way to the Future: Proceedings of the World Tunnel Congress, WTC 2013
SP - 1903
EP - 1909
BT - Underground - The Way to the Future
PB - Taylor and Francis - Balkema
T2 - World Tunnel Congress: Underground - The Way to the Future, WTC 2013
Y2 - 31 May 2013 through 7 June 2013
ER -