大型输水渠道边坡水中修复综合措施研究

Research on Comprehensive Measures of Underwater Slope Repair in Large-Scale Water Delivery Channel

某大型输水渠道需在保证通水的情况下对过水断面边坡进行水中修复,包括边坡处理层修复、衬砌面板修复以及一级马道路面结构层修复等。对过水断面边坡水中修复措施以及渠道通水情况下进行水中边坡修复的其他辅助措施进行了研究,并在实际工程中进行了现场试验,解决了渠道输水状态水力力学条件下水下围挡结构整体稳定性和安全可靠性问题,提出了一整套水下边坡修复设计方案。实践证明水下围挡方案设计、排水方案设计、水下坡体修复方案设计以及修复期间渠道运行要求方案设计均合理可行,对同类水利工程水下修复有一定指导意义。

A large water supply channel needs to repair the underwater slope under the conditions of ensuring access to water, including slope treatment layer repair, lining panel repair and first grade road structure layer repair. In this paper, the measures of underwater section slope repair and other auxiliary measures needed to realize channel water flow were studied. The overall stability and safety of the underwater enclo sure structure under the hydraulic mechanical conditions of channel water transportation were solved and a complete set of design schemes for the repair of underwater slopes was put forward. The practice has proved that the design of the underwater enclosure scheme, the drainage scheme, the design of the underwater slope repair scheme and the design of the channel operation requirements during the restoration period are all reasonable and feasible. The underwater restoration of water conservancy projects has a certain guiding significance.