摘要
随着我国社会经济的迅速发展,水资源短缺问题日益严峻,远距离调水工程是促进我国国民经济发展与水资源综合利用的重要举措。深埋远距离输水隧洞采用钻爆法施工时,因工作面小以及洞线长带来的洞内排烟和出渣困难,一般采取增设斜井、支洞等辅助洞室另辟工作面。三亚西水中调项目输水隧洞洞形小,距离长达28.1 km,增设的多条辅助斜井断面小、坡度陡,在确保施工安全的情况下通过合理选用各隧洞开挖的出渣方式和设备,加快了工程进度、降低了施工成本,对类似长距离小断面隧洞开挖具有借鉴意义。
With the rapid development of China′s social economy, the shortage of water resources is becoming more and more serious. Long-distance water diversion project is an important measure to promote the development of China′s national economy and the comprehensive utilization of water resources. When the deepburied long-distance water conveyance tunnel is constructed by drilling and blasting method, due to the difficulty of smoke exhaust and slag tapping in the tunnel caused by the small working face and the long tunnel line, it is generally adopted to add inclined shafts, branch holes and other auxiliary caverns to open up another working face. The water conveyance tunnel of West Water Diversion Project in Sanya has a small shape and a distance of 28.1 km. The additional auxiliary inclined shafts have small sections and steep slopes. Under the condition of ensuring the safety of construction, the reasonable selection of slag tapping modes and equipment for each tunnel excavation accelerates the progress of the project and reduces the construction cost. It has reference significance for similar long-distance small-section tunnel excavation.
作者
谢红祥
XIE Hongxiang(China Energy Engineering Group Guangxi Hydroelectric Construction Bureau Co.,Ltd.,Nanning 530001,China)
出处
《红水河》
2022年第6期44-48,共5页
Hongshui River
关键词
远距离输水隧洞
钻爆法
小断面
出渣方式
设备选择
long-distance water conveyance tunnel
drilling and blasting method
small section
slag tapping mode
equipment selection
