頁籤選單縮合
題名 | 模擬地震作用下區域液化潛能評估--以宜蘭縣羅東鎮為例=Assessment of Liquefaction Potential in an Area Induced by a Simulated Earthquake--Using Luodong Town, Yilan County as a Case Study |
---|---|
作者 | 黃宏謀; 林卓君; | 書刊名 | 宜蘭大學工程學刊 |
卷期 | 5 2009.03[民98.03] |
頁次 | 頁17-36 |
分類號 | 441.1 |
關鍵詞 | 模擬地震; 土壤液化; 微分區圖; Simulated earthquake; Soil liquefaction; Microzonation map; |
語文 | 中文(Chinese) |
中文摘要 | 地震發生時,含有飽和鬆散砂土層之場址可能會產生土壤液化的現象。有些維生系統涵蓋大片區域,地震可能會在這大片區域上引起多處土壤液化,進而對維生系統造成破壞,因此對一片區域土壤液化潛能的評估是一個值得探討的議題。本研究提供對一個區域評估液化潛能的方法。這方法首先蒐集一個地區的鑽孔資料,並利用地理資訊系統建置鑽孔資料庫。其次考慮影響該地區的震源,設定一個模擬地震,並求得每一鑽孔所在位置之最大地表加速度,接者計算液化潛能指數,判定每一鑽孔所在場址液化潛能的類別,最後利用地理資訊系統的功能製成研究地區的液化潛能微分區圖。本研究以宜蘭縣羅東鎮為例,說明製作液化微分區圖的過程。本研究之成果可供相關單位進行工程或防災規劃的參考。 |
英文摘要 | In this study, we propose a method for assessment of soil liquefaction in an area caused by a simulated earthquake. In this method, we first compile boring logs data for a study area. Next, we define a simulated earthquake based on seismic sources that may affect the area, estimate peak ground acceleration at the sites where boring logs are available, and then assess liquefaction potential using the method recommended by Iwasaki and others. Finally, we use a GIS technique to generate a liquefaction potential microzonation map. As an illustration, we generate a microzonation map for Luodong Town, Yilan County. The result from this study can be used as a resource for engineering planning or disaster prevention planning. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。