複合型泥水加壓式潛盾機在海底隧道之應用

潛盾工法架構隧道工程施工另一機制,從潛盾機對地質適應之多元化突破地質適用之拘限,在高水壓下於岩盤、卵礫層到軟弱地盤因應模式,以潛盾機能克服地質與施工艱困條件,採用複合機型之泥水加壓式潛盾機,配置633mm超大滾輪式切齒、不需輔助工法可自機内更换中續切齒、特殊海底到達施工等,有效地運用於核能電廠循環冷卻水海底出水隧道工程。

TUNNELING BY COMPOSITE PRESSURIZED-PLASTER SHIELD MACHINES IN MULTILATERAL SEABED

Shield tunneling surpasses traditional tunneling methods by adopting shield machines to cope with complex geological and construction condition. This is most remarkable in tunnel construction in multilateral seabed (comprising rocks, gravel and broken layers)under high water pressure. The effective application of the composite pressurized-plaster shield machine in the cooling-water discharge tunnel in seabed for nuclear power plant engineering, which involves stabilization of excavation face, mucking, excavation equipments, monitoring devices, and special support equipments for arriving-seabed construction in difficult geological and construction conditions, is established by this study.