小断面洞室工程施工出渣方式优化设计研究

To Optimize Design of Mucking Pattern for Constructing Small Cross-section Tunnel Project

地下洞室工程施工,出渣环节是制约进度的主要因素之一,对安全影响也大。出渣系统和设备对工程进度和造价影响大,选择适当,往往事半功倍,其选择一般根据洞室断面大小、工程进度要求和施工经济效益等方面确定。文中以临汾市引沁入汾和川取水输水工程3号隧洞工程为例进行分析,阐述小断面洞室工程开挖施工出渣方式的选择。

The mucking links are the main factors to restrict the project progress in constructing underground cavern project, it also makes more large impact on security. The mucking system and equipments will influence the project pace and cost. When the selection of these is suitable, it will get twice the result with half effort, and it is determined by the cross-section size of cavern, the demand of project pace and economical benefit of construction. Taking the NO.3 tunnel project in Hechuan Water Diversion Works of Qinhe-to-fenhe Water Transfer Project as an example, the paper analyzes and states the selection of mucking pattern to excavate small cross-section cavern.