水下压浆块石混凝土在水库大坝护坡水下脚槽工程中的应用

Application about Stone Concrete in Peduncle Project of Reservoir Dam Revetment

水库除险加固工程施工期多在汛后,大坝混凝土板块护坡脚槽的施工一般在高于水库水位的条件下进行,通常会产生施工期放水位和保水用于春灌的矛盾冲突。为此,本文应用水下压浆块石混凝土技术进行水库大坝护坡脚槽混凝土施工,不仅解决了用水与放水矛盾,还实现了在不提高施工成本的情况下,保证了工程质量。实践证明,该技术还可用于各类水工混凝土基础工程水下施工。

The construction period about reinforcement works for a reservoir is more arranged after flood period.The construction of dam revetment peduncle with stone concrete structure is generally carrying out under the condition of higher the water level of a reservoir.As a result,the conflict usually arises between discharging water required by construction and storing water to irrigate in the spring next year.For this reason,in this paper,the authors adopted the technology of underwater grouting stone concrete to carry out concrete construction for peduncle project of reservoir dam revetment,not only resolved the conflict between discharging water and storing water,but also guaranteed the project quality as well as realized the goal not increasing the cost of construction.The practice has proved that the technology is also applied in constructions under water for various hydraulic concrete foundation projects.