减小旭龙水电站拱坝坝体应力的研究

Study on reduction of arch dam stress in Xulong Hydropower Station

为解决金沙江旭龙水电站拱坝预可研阶段主拉应力数值与类似高拱坝相比较大的问题,成立了QC小组,通过展开现状调查,确定主拉应力的控制目标,分析影响拱坝应力的末端因素,确定了主因,研究制定了相应的对策,并予以实施,降低了拱坝坝体的应力水平。QC活动为该项目顺利通过后期阶段的审查奠定了基础,有效加快了工程前期阶段的工作。

In order to solve the problem that the main tensile stress value of Jinsha River Xulong Hydropower Station arch dam in preliminary feasibility study stage is higher compared with similar high arch dams,the QC team is established.The control objective of main tensile stress is determined through present situation investigation.The terminal factors affecting the arch dam stress are analyzed.Main causes are determined.Corresponding countermeasures are studied,formulated and implemented,thereby reducing the stress level of the arch dam.The QC activity lays foundation for the project to smoothly pass through subsequent stage review,thereby effectively accelerating the work in engineering previous stage.