遵义下坝水库取放水隧洞建筑物优化设计  

Optimization Design of Water Intake and Drainage Tunnel in Xiaba Reservoir

作　　者：张丹[1] 李伟[2] 

机构地区：[1]遵义水利水电勘测设计研究院,贵州遵义563000 [2]西北农林科技大学,陕西杨凌712100

出　　处：《浙江水利水电学院学报》2016年第1期32-36,共5页Journal of Zhejiang University of Water Resources and Electric Power

摘　　要：针对下坝水库地形地貌、地质条件循特点,现场踏勘后综合考虑工程占地、施工难度及工程投资等因素,优选"利用导流隧洞改为有压取水/放空隧洞"的一洞三用取放水方案.经水力计算、隧洞衬砌计算、应力稳定性复核等论证分析,结果表明:隧洞建筑物结构、过流能力、衬砌裂缝宽度和稳定性等,均满足规范要求,优化设计方案具有一定的技术可行性和经济合理性.The complex conditions of topography and geological characteristics of Xiaba Reservoir are introduced,including the mass fractured rock by fissures cutting and the poor integrity of strong weathering zone,which is easy to form landslides,avalanches,bias and other problems. Combined with the site reconnaissance and SL386-2007,SL279-2002 and other standards for the hydraulic tunnel building design,and considering the project land covering,the construction difficulties,the engineering investment and the other factors,the water intake and drainage scheme of diversion tunnel reconstruction as the pressurized water intake / drain tunnel has been optimal chosen,which can realize three function by one tunnel. From the hydraulic calculation,the tunnel lining calculation,the stress stability check and others analysis,the results showed that the structure,flow capacity,crack width and stress stability of the tunnel buildings can meet the standards and the optimization design scheme has high technical feasibility and economic rationality.

关 键 词：遵义 下坝水库 导流隧洞建筑物 取放水 稳定复核 

分 类 号：TV512[水利工程—水利水电工程]