珠江口海底管廊方案研究

Research of Submarine Utility Tunnel in Zhujiang Estuary

位于珠江口大铲岛上的前湾电厂所需淡水和天然气必须由对岸陆域采用管道输送,要求管道从陆域码头用地范围内穿越海底,在岛岸边登陆后向电厂供水供气,为此提出三个可供选择的方案:盾构管廊、顶管管廊和定向钻穿越三个海底管方案,经论证后推荐采用盾构海底管廊。

Fresh water and natural gas required by Qianwan power plant, which is located on Dachan island of Zhujiang estuary, have to be delivered through pipeline from the land on the opposite bank of Dachan island. The pipeline is required to go through the seabed from the inland wharf to Dachan island and supply fresh water and natural gas to the power plant. For this purpose three options are put forward; shield utility tunnel; push bench utility tunnel and directional drilling pipeline. The first plan is recommend after technical and economical comparison.