Exploring the Relationship between Underground Sound Energy Caused by Debris Flow and Discharge

• Main Authors: Wen-shuo Huang, 黃文爍
• Other Authors: 劉格非
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/cng7yy

碩士 === 國立臺灣大學 === 土木工程學研究所 === 107 === This research collected the debris flow events which occurred in the Aiyuzi River in Shenmu Village at first, then compiled the surface vibration signals detected by the geophone and the rainfall observed by the Shenmu station established by the Central Weather Bureau. Using Short Time Fourier Transform to analyze the vibration signals. At the same time, through the relationship between rainfall and turbulence, the rationalization formula is used to estimate the turbulent flow of the Aiyuzi River based on the rainfall process. In addition to the analysis of historical events, the research also went to the site of Aiyuzi River in Shenmu Village to measure the flow velocity and underground sounds of different locations around the Aiyuzi River. This research hopes to explore the relationship between the discharge and the underground sound energy when the debris flow occurs by analyzing the vibration signal and estimating the hydrograph.