英文篇名
GEOTECHNICAL TECHNIQUES IN HIGH SPEED RAIL
作者
王明雄、陳名利
關鍵字
高速鐵路、加勁擋土結構、前撐工法、土壤液化、地盤改良
摘要
台灣西部走廊高速鐵路全長345公里,路線結構有高架橋樑、隧道及路堤/路塹等型式。舉凡路堤填築、路塹開挖、邊坡保護、隧道鑽掘、基礎構築、地盤改良等均屬大地工程範疇。高速鐵路沿線北部路段地質條件可概分為砂、泥岩互層以及卵礫石層兩大類,南部路段則以現代沖積層之粉土質粘土、粉土質砂及其互層為主,針對不同地質條件及工程特性,於規劃、設計及未來施工作業時,運用合宜的地工技術,對於工程品質的確保、時程的掌握及成本的節省均具有極高的效益。
英文摘要
West Taiwan Corridor High Speed Rail is 345 km in length and has various guideway structures including viaducts/bridges, tunnels, embankments/cuts. Geotechnical techniques are widely applied , for example, the embankment fill , cut excavation, slope protection, tunnel excavation, foundation construction, ground improvement, etc. The geological condition along the proposed alignment at the north section can be divided into two categories, interbedding of sandstone and mudstone, and gravel formation (conglomerate); at the south section, it is composed mainly of recent alluvium of silty clay, silty sand and their interbedding. It is important to adopt appropriate geotechnical techniques to construct with different characteristics structures. Therefore, the quality, cost and schedule of High Speed Rail construction can be fully ensured or optimized.