长距离输水隧洞施工支洞的规划布置探讨

Discussion on Planning and Layout of Construction Adit of Long-Distance Water Delivery Tunnel

长距离输水隧洞是输配水工程中常见工程项目,输水隧洞长度较长时,为了满足工期要求,同时降低施工成本,减少施工难度,保证施工安全,往往需要沿洞线布置一定数量的施工支洞。笔者结合海南南渡江引水工程中线输水隧洞施工介绍施工支洞布置原则,从施工支洞数量的确定、位置的选择及确定等方面进行分析,对施工支洞进行合理规划布置,使输水隧洞工程建设顺利完工。

Long-distance water delivery tunnel is common in water delivery and distribution engineering projects. In the case of water delivery tunnel with long distance, it is necessary to arrange some construction adits along tunnel line to meet schedule requirement, reduce construction cost and difficulty, as well as ensure construction safety. Based on the construction of mid-line water delivery tunnel in Hainan Nandu River Diversion Project, this paper introduces arrangement principle of construction adit and makes an analysis on quantity of construction adit, position selection and determination, etc. to achieve reasonable planning and layout of the construction aidt and complete the water delivery tunnel project smoothly.