Application of Microtremor Measurements for Estimating Strong Motion in the Main Routes of Kaohsiung Rapid Transit System

• Main Authors: Lee, Landers, 李俊宏
• Other Authors: Tienfuan Kerh
• Format: Others
• Language: zh-TW
• Published: 1996
• Online Access: http://ndltd.ncl.edu.tw/handle/92551018969638420051

碩士 === 國立屏東技術學院 === 土木工程技術研究所 === 84 === Soil condition of a construction site is key factor and must be considered in structural design foragainsting the effect of strong ground motion. therefore, the analysis of period or its converted frequencyfor a soil surface becomes very important. By taking hole-drilling records from Kaohsiung Rapid TransitBureau, the first purpose of this study is to investigate the distributions of soil layers and shear-wave velocites along the Red and Orange routes of the transit system. Secondly, microtremor measurements were conducted at the hill areas of Kaohsiung district and thestations along the two routes where seismoments were installed. From the formula for estimating thedominant period of soil layers, The results might prove the reliability of microtremor measurements, and might provide information for understanding soil characteristics and dominants periods along the two routes. Finally, the Nakamura's technique and the concept of transfer functions were adopted to design computerprograms for predicting the strong ground motion at specified stations. The actual strong ground motion recored on April 25,1995 were performed for every station along the two routes, which might have valuable motion estimations were performed for every station along the two routes, which might have valuable inputsfor the relative engineering design.