英文篇名
GROUND IMPROVEMENT OF COASTAL INDUSTRIAL PARKS IN TAIWAN
作者
張吉佐、曾文德、許建裕
關鍵字
擠壓砂樁、動力壓密、礫石樁、深層液化夯實
摘要
台灣濱海工業區主要為水力回填造成的新生地。因原沖積土層與回填地層大多屬於飽和且疏鬆的沉泥質細砂,且地下水位高,在地震規模大,震央距離近等相關條件下,土壤液化的機會必定相當高。本文主要針對常用於台灣濱海工業區的幾種地盤改良工法:擠壓砂樁工法、動力壓密工法、礫石樁工法、及深層液化夯實工法等;對其改良機制、適用範圍、改良成效及施工案例等於文中概述,作為日後辦理上述地盤改良時的設計施工參考。
英文摘要
Most coastal industrial parks in Taiwan were mainly completed through hydraulic fill reclamation. Most sites were reclaimed by dredging. Their subsoil conditions are mainly composed of grey silty sand locally laminated with grey silty clay and/or sandy silt. The liquefaction potential of saturated silty sand at various depths underlying each site is high due to high ground water table and potentially large earthquake ground shaking. The main purpose of this paper is to briefly illustrate the mechanism, arrangement, efficiency, and practical experience of various ground improvement method, such as sand compaction pile method, dynamic consolidation method, stone column method, and deep liquefaction compaction method. The objective for the whole article also intends to provide useful references for design and construction of similar projects in the future.