國內土壤受震液化問題之檢討

Seismically Induced Soil Liquefaction Problems in Taiwan

翁作新(Tzou-Shin Ueng) ； 陳正興(Cheng-Hsing Chen) ； 黃俊鴻(Jin-Hung Hwang)

《地工技術》 100期 (2004/06) Pp. 63-78

https://doi.org/10.30140/SG.200406.0002

摘要

1999年集集地震引起台灣中部地區嚴重土壤液化災害，使土壤受震液化問題，在國內工程設計及震災防治方面，成為一重要課題。而國內可能液化地區土壤之地質條件、地震作用，以及細料含量與性質，相較於國外土壤之狀況有所不同，因此有必要檢討國內土壤受震液化問題。本文針對目前國內土壤受震液化的主要問題中，有關高細料含量土壤之液化行為、液化評估方法及土壤液化問題之工程設計三方面，檢討其現況、需解決之問題以及將來之發展，以為地工界之參考。

關鍵字

液化 ； 地震 ； 細料含量 ； 評估方法 ； 工程設計 ； 損害防治

並列摘要

The seismically induced soil liquefaction has become one of the very important issues in the earthquake engineering designs and disaster prevention and mitigation since the 1999 Chi-Chi earthquake which caused extensive soil liquefaction damage in the middle part of Taiwan. In the evaluation and design against soil liquefaction, it is imperative to consider the specific characteristics of the geologic conditions, seismicity, and the soils, especially the very high fines content, in the probable liquefaction areas in Taiwan. This paper discusses, specifically relevant to Taiwan, the present state of knowledge and practices, major problems, and future developments in the areas of (1) liquefaction behavior of soils with a high fines content; (2) soil liquefaction evaluation methods; and (3) engineering designs against soil liquefaction.

並列關鍵字

liquefaction ； earthquake ； fines content ； evaluation method ； engineering design ； disaster mitigation