An Experimental Study on the Anti-Seismic Performance of a U-PVC Water Supply Pipeline with Enlarged Expansion Joints

In past earthquakes, a lot of damage occurs to the city supply systems such as electricity,gas, drinking and sewer water, telecommunications as known in the 1983 Nihonkai Chubuearthquake, 1995 Hyogoken Nambu earthquake and 2004 Niigata Chuetsu earthquake. The seismic safety of the telecommunication facilities is extremely important among otherlifelines for the disaster recovery in the emergency activities after earthquakes. Undergroundtelecommunication facilities are composed of telecommunication cables and conduits accommodating cables. In the present study, the earthquake resistance evaluation technique of underground telecommunication facilities was examined by the probabilistic method, focusing on its earthquake safety.