TY - GEN
T1 - Application of flash setting material for temporary earthquake disaster restoration of gas pipelines using fly ash cement mixtures
AU - Shimada, Hideki
AU - Yoshida, Yasuhiro
AU - Araki, Koichi
AU - Sasaoka, Takashi
AU - Fujita, Shuichi
AU - Matusi, Kikuo
AU - Iino, Masuhiko
AU - Tomii, Takahisa
PY - 2010
Y1 - 2010
N2 - There are many earthquakes in Japan. If a large earthquake were to occur, it is necessary to consider how pipelines such as: gas, sewage, telecommunications, and so on are restored quickly. At that time, damaged gas pipelines are very dangerous because fire in large areas could be caused by the leakage of gas from the damaged pipeline. Accordingly, it is necessary for gas companies to stop the supply of gas to houses over a large area. Once the gas supply is stopped, there is a considerable amount of time to repair the pipelines over the area. For this reason, a quick method for restoring damaged gas pipelines would be useful after an earthquake. Recently, we have been developing new flash setting material for the damaged gas pipeline by an injection into the house connection of gas when the gas supply is stopped quickly in an emergency. From these points of view, in order to clarify to what degree the contents of flash settling material affect the properties of the injected fly ash mixture causing heavy damage to the gas pipeline in an earthquake, different combinations of fly ash, chemical agents and water were considered in several experiments.
AB - There are many earthquakes in Japan. If a large earthquake were to occur, it is necessary to consider how pipelines such as: gas, sewage, telecommunications, and so on are restored quickly. At that time, damaged gas pipelines are very dangerous because fire in large areas could be caused by the leakage of gas from the damaged pipeline. Accordingly, it is necessary for gas companies to stop the supply of gas to houses over a large area. Once the gas supply is stopped, there is a considerable amount of time to repair the pipelines over the area. For this reason, a quick method for restoring damaged gas pipelines would be useful after an earthquake. Recently, we have been developing new flash setting material for the damaged gas pipeline by an injection into the house connection of gas when the gas supply is stopped quickly in an emergency. From these points of view, in order to clarify to what degree the contents of flash settling material affect the properties of the injected fly ash mixture causing heavy damage to the gas pipeline in an earthquake, different combinations of fly ash, chemical agents and water were considered in several experiments.
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M3 - Conference contribution
AN - SCOPUS:84877106900
SN - 9781617821899
T3 - 28th International No-Dig Conference and Exhibition 2010, NO-DIG 2010
SP - 329
EP - 336
BT - 28th International No-Dig Conference and Exhibition 2010, NO-DIG 2010
T2 - 28th International No-Dig Conference and Exhibition 2010, NO-DIG 2010
Y2 - 8 November 2010 through 10 November 2010
ER -