中小型水库土石坝除险加固施工技术应用研究

Research on Application of Construction Technology for Danger-removal and Reinforcement of Earth-rock Dams in Medium and Small Reservoirs

大坝除险加固工艺在我国水利工程建设中占据着至关重要的地位。随着大坝建成使用时间的不断增加,大部分早期修筑的水利工程均出现了不同程度的老化现象。尤其是中小型水库土石坝工程,其在地震作用下,大多数存在砂土层地震液化等现象。为保证水利工程质量,采取除险加固方法显得极为关键。本文结合某中小型水库大坝除险加固工程,提出了土石坝抛石挤淤加固方案,希望通过这种经济、合理的清淤方式,进一步提升水利工程质量。

The dam reinforcement technology occupies a vital position in the construction of water conservancy projects in my country.With the continuous increase in the use time of dams,most of the early-built water conservancy projects have experienced varying degrees of aging.Especially for small and medium-sized reservoir earth-rock dam projects,most of them have the phenomenon of seismic liquefaction of sand layer under the action of earthquake.In order to ensure the quality of water conservancy projects,it is extremely important to adopt the method of removing danger and strengthening.In this paper,combined with the danger elimination and reinforcement project of a small and medium-sized reservoir dam,this paper proposes an earth-rock dam rip-rock squeezing and silting reinforcement plan.It is hoped that this economic and reasonable dredging method will further improve the quality of water conservancy projects.