某核电厂排水隧洞进口洞脸和边坡处理  

Treatment of Drainage Tunnel Face and Slope of a Nuclear Power Plant

作　　者：陆宗磐[1] 时长波[1] Lu Zongpan;Shi Changbo(China Water Resources Beifang Investigation,Design and Research Co.,Ltd)

机构地区：[1]中水北方勘测设计研究有限责任公司

出　　处：《水利水电工程设计》2018年第2期7-9,56,共3页Design of Water Resources & Hydroelectric Engineering

摘　　要：某核电厂排水隧洞受工艺布置和地形地质条件限制,隧洞进口段处于深厚坡残积层中,设计采用钢筋混凝土灌注桩+预应力锚索加固方案,替代大开挖方案。在开挖与支护施工过程中进行动态分析计算,根据现场情况及实测资料合理确定锚索间距和锚固力,并提出控制基坑及支护结构变形的措施,取得良好的效果,可供类似工程参考和借鉴。Limited by the layout,topographic and geological conditions,the inlet section of drainage tunnel of a nuclear power plant issituated in deep slope residual layer. Reinforced concrete cast-in-place pile plus prestressed anchor rope reinforcement is designed toreplace the large area excavation scheme. Dynamic analysis and calculation are carried out in the process of excavation and supportconstruction. It determines the reasonable anchor rope spacing and anchorage force according to the field situation and measured data,puts forward measures of controlling the deformation of foundation pit and support structure,and has obtained good effect. It canprovide reference for similar projects.

关 键 词：坡残积层 灌注桩 锚索 边坡处理 核电厂 

分 类 号：TV672[水利工程—水利水电工程]