如何與斷層及地震相處－地工設計之考量

How to Get Along Well with Fault and Earthquake-Geotechnical Design Considerations

陳斗生(D. S. Chen)

《地工技術》 81期 (2000/10) Pp. 121-132

https://doi.org/10.30140/SG.200010.0009

摘要

台灣位處地殼板塊衝撞介面，在本島形成過程中造成無數之斷層與伴隨之地震。由集集大地震災害情況檢討其震災之原因，包括法令、設計、營建至防災等問題，屬全面性且環環相扣。本文針對地工方面之防災建議地工調查與分析除應踏實而完整外，應加強“近斷層地震”之研究，對動態水、土壓力、土壤液化之分析與防災設計，並應針對各地之地質構造與地層變化特性，分別提出最大可能來襲地震與或然率分析之設計反應譜供結構設計採用。

關鍵字

近斷層地震 ； 地工設計 ； 土壤液化 ； 設計震譜

並列摘要

The Island of Taiwan is at the collision zone of Euroasian and Phillippine Sea Plates, resulting in numerous faults and earthquakes in the process of the Island's formation. Wide range of causes causing diastrous damages during the Chi-Chi Earthquake, including code, regulations, design, construction to disaster prevention system, etc. Regarding geotechnical engineering, in addition to thorough site investigation, the ”near fault seismicity study” is imperative for Taiwan's seismologists; the earthquake effect on the earth pressure, water pressure, liquefaction potential analysis and its mitigation measures should be considered seriously; and the design spectrums for both the Maximum Credible Earthquake and the Maximum Probable Earthquake spectrums considering the geologic formation and site soil conditions should be included in geotechnical site investigation reports for structure engineers' use in the design.

並列關鍵字

near fault seismicity ； geotechnical design ； liquefaction ； design spectrum