DAMAGE TENDENCY ANALYSIS ON TELECOMMUNICATION CONDUITS DUE TO PAST STRONG INLAND EARTHQUAKES

Abstract

 Like other lifeline facilities, telecommunication conduits also suffered damages due to strong inland earthquakes, such as 1995 Great Hanshin Earthquake, 2004 Chuetsu Earthquake and 2007 Chuetsu Offshore Earthquake. In this study, damages of telecommunication conduits due to past inland earthquakes are analyzed. The relationship between telecommunication conduits and seismic intensities (peak ground acceleration and peak ground velocity), characteristics of conduit and microtopographies are analyzed respectively. The relationship between equivalent predominant frequency, which is calculated using PGA and PGV, and conduit damages are also analyzed.