摩天岭隧道斜、竖井通风方案比选

Comparison and Selection of Ventilation Schemes for Inclined and Vertical Shaft of Motianling Tunnel

特长公路隧道通风方案直接影响工程造价及建设工期,合理的通风方案有利于降低建设期成本及运营费用,通过加强施工组织设计、合理调度资源,确保施工进度满足项目工期要求。针对摩天岭隧道提出四种通风方案:双斜井方案、双竖井方案、斜井加竖井方案、全射流通风方案,通过方案比选及技术、经济分析,最终确定采用方案二双竖井方案,该方案可满足隧道运营期的使用要求,同时该方案工程造价较低。

The ventilation scheme for the extra-long highway tunnel directly influences the project cost and construction period.The reasonable ventilation scheme is conducive to reducing the cost of construction period and operating costs.The construction progress that can meet the requirements of the project duration is ensured by strengthening the construction organization design and rationally dispatching resources.Four kinds of ventilation schemes for Motianling tunnel like scheme for double inclined shaft,scheme for double vertical shaft,scheme for inclined shaft and vertical shaft,and full jet flow ventilation scheme are put forward.Through the scheme comparison and selection and technical and economic analysis of the scheme,the scheme II,namely the scheme for double vertical shaft is finally determined to be adopted.The scheme can meet the use requirements of the tunnel operation period,and meanwhile the project cost is low.