摘要
大伙房输水工程特长隧洞主洞长为85km,开挖洞口直径为8m,是相对较长的隧洞。隧道开挖时常通过修建衬砌为主、钻眼爆法为辅的联合方式进行开挖。施工期间必然会遇到一些复杂地段,需要因时因地的选取衬砌的种类。本文采取理论分析和现场勘查,深入研究制约衬砌类型选取的因素,并对不同种类衬砌样式的优缺点进行分析,选取合理的衬砌类型在大伙房输水工程中应用。
Main cave of super-long tunnel in Dahuofang Water Conveyance Project is as long as 85km. The diameter of the excavation tunnel entrance is 8m, and the tunnel belongs to relatively long tunnel. Tunnel is generally excavated by the combined mode of lining construction as main method and drilling blasting method as auxiliary method. Some complex sections must be encountered during construction, therefore lining categories are selected according to time and place. In the paper, theory analysis and field exploration are adopted for in-depth study on factors restricting lining model selection. Advantages and disadvantages of lining models in different categories are analyzed. Rational lining models are selected and applied in Dahuofang Water Conveyance Project.
出处
《水利建设与管理》
2016年第5期33-36,共4页
Water Conservancy Construction and Management
关键词
输水隧洞
特长隧洞
敞开式衬砌
锚喷支护
water conveyance tunnel
super-long tunnel
open lining
anchoring and shotcreting support
