马其顿科佳水电站压力钢管防腐问题研究

Study on anti-corrosion of penstock of Kozjak Hydropower Station in Macedonia

中国公司承接的马其顿科佳水电站工程在施工过程中,地下隧洞的钢管防腐层出现了大量表面气泡,严重影响工程质量和制约工程进度。通过对问题发生原因进行分析,基于现场试验并采用成熟技术,提出了工程变更方案并成功进行了实施。结果表明,本文提出的施工方案取得了良好的效果,保障了该水电站的如期发电。

During the construction of Kozjak Hydropower Station in Macedonia contracted by a Chinese company,a large amount of air bubble occurs on the surface of the anti-corrosion layer of the penstock of the underground headrace tunnel,and then not only the construction quality is seriously impacted,but the construction progress is also restricted.Through the analysis on the causation of the problem,a scheme of project alternation is put forward herein,and it is successfully implemented on the basis of the relevant site test and adoption of the mature technologies concerned.The result shows that a better effect is obtained with this construction scheme and the hydropower station is ensured to be put into operation in time.