S309省道东钱湖段隧道设计关键技术研究

Research on Key Technologies for Tunnel Design of Dongqian Lake Section of S309 Provincial Highway

S309省道鄞州区东钱湖段公路隧道穿越深厚层坡积体,上跨既有引水隧道,浅埋穿越临近水库,工程设计难度较大。文章结合实际建设过程,详细介绍S309东钱湖段隧道工程设计关键技术,提出针对性的设计方案,保证隧道在施工和后期运营维护过程中安全可靠、经久耐用。

The highway tunnel of the Dongqian Lake section of S309 provincial highway in Yinzhou district passes through the deep layer slope accumulation,overpasses the existing diversion tunnel,and crosses the adjacent shallow burial reservoir,which is difficult to design.In combination with the actual construction process,the key technologies for the tunnel engineering design of Dongqian Lake section of S309 are introduced in detail,and the targeted design scheme is put forward,so as to ensure the safety,reliability and durability of the tunnel in the process of construction and later operation and maintenance.