摘要
施工导流是水库安全施工和关键路线工期控制的技术关键。郊纳河流域单点暴雨突出,短时洪峰量大、破坏性强等,对大坝浇筑施工分期水流控制提出较高要求。综合考虑坝址区地形地质条件、导流标准及时段,结合施工分期设计洪水成果,设计优选上下游围堰一次拦段河道、涵管和导流底孔相结合的分期导流方式,并对导流涵管和临时围堰的结构进行了设计计算。合理导流方案可为水库防洪度汛目标如期实现提供支撑。
Construction diversion is the technical key to the safe construction of reservoirs and the control of critical route schedules.The single point rainstorm in Jiaona River basin is prominent,with large short-term peak volume and strong destructiveness,which puts forward high requirements for the staged flow control of dam pouring construction.Taking into account the terrain and geological conditions,diversion standards,and time periods of the dam site area,combined with the flood results of the construction stage design,a stage diversion method combining the upstream and downstream cofferdams with a one-time blocking section of the river channel,culvert pipes,and diversion bottom holes is designed and optimized.The structure of the diversion culvert pipes and temporary cofferdams is also designed and calculated.A reasonable diversion plan can provide support for the timely realization of the flood control and flood control objectives of the reservoir.
作者
姜鹏飞
王文旭
JIANG Peng-fei;WANG Wen-xu(Shandong Survey and Design Institute of Water Conservancy Co.,Ltd,Guizhou Branch,Guiyang 550000,China;Xi'an University of Technology,Xi'an 710048,China)
出处
《云南水力发电》
2023年第6期71-74,共4页
Yunnan Water Power
基金
陕西省水利科技项目(SLKJ-2021-33)。
关键词
施工导流
水流控制
临时围堰
新龙堡水库
construction diversion
water flow control
temporary cofferdam
Xinlongbao Reservoir
