大跨度三向预应力水工渡槽充水试验及成果分析  

Water Filling Test and Result Analysis of Large-span Three Directional Prestressed Hydraulic Aqueduct

作　　者：徐全基 XU Quanji(POWERCHINA SINOHYDRO ENGINEERING BUREAU 14 CO.,LTD.,Kunming 650041,China)

机构地区：[1]中国水利水电第十四工程局有限公司,云南昆明650041

出　　处：《云南水力发电》2024年第S01期23-28,共6页Yunnan Water Power

摘　　要：向家坝灌区北总干渠一期一步工程位于四川西南部和云南东北部的中低山区,是四川水利建设史上仅次于“都江堰灌区”的特大型水利工程,也是四川省“再造一个都江堰灌区”水资源战略配置的重要骨干工程,全长108.25 km,途径自贡、内江、泸州、宜宾等4市7区县;木桥沟渡槽属于施工技术较为复杂、超危大控制性工程之一,结构安全、外观质量和渗漏尤为关键,工程完工后,开展渡槽通水试验,检测渡槽承载力、应力、变形、线形、伸缩缝防渗等指标是否满足设计要求,并为向家坝灌区北总干渠一期一步工程顺利充水提供技术保障,也对后续水利工程大跨度预应力水工渡槽施工提供参考。Xiangjiaba Irrigation District North Main Canal Phase I Project is located in the middle and low mountain areas of southwest Sichuan and northeast Yunnan.It is a super large water conservancy project second only to"Dujiangyan Irrigation Project Irrigation District"in the history of water conservancy construction in Sichuan Province,and also an important backbone project for the strategic allocation of water resources of"rebuilding a Dujiangyan Irrigation Project Irrigation District"in Sichuan Province.It has a total length of 108.25km and passes through four cities,seven districts and counties including Zigong,Neijiang,Luzhou,and Yibin.Muqiaogou aqueduct is one of the more complex and high-risk control projects in construction technology,and its structural safety,appearance quality,and leakage are particularly critical.After the completion of the project,conduct a water test on the aqueduct to check whether the bearing capacity,stress,deformation,linearity,expansion joint anti-seepage and other indicators of the aqueduct meet the design requirements.This paper provides technical support for the smooth water filling of the first phase of the North Main Canal in Xiangjiaba Irrigation District,and also provides reference for the construction of large-span prestressed hydraulic aqueducts in subsequent water conservancy projects.

关 键 词：大跨度 三向预应力 水工渡槽 充水试验 成果分析 

分 类 号：TV672.3[水利工程—水利水电工程]