恒山水库喷涂纯聚脲抗渗新技术

New Technology of Sprayed Pure Polyurea for Anti-permeability in Hengshan Reservoir

首先介绍了恒山水库坝体纯聚脲抗渗防护的工程背景,详细探讨了上游坝面基材处理施工工艺,重点阐述了喷涂纯聚脲施工工艺,最后全面总结了恒山水库纯聚脲防护工程所遇到的技术难题并探讨了解决的办法。工程实践表明,恒山水库大坝喷涂纯聚脲防护工程是我国新时期在役水利大坝除险加固的一项创造性突破,技术优势明显,将喷涂纯聚脲技术应用于水利大坝的防护,能有效确保水利大坝的长期安全运行。

The authors firstly introduce the background of Hengshan Reservior protection with sprayed pure polyurea and then elaborate the substrate processing method of upstream dam.After that,the construction technology of spraying pure polyurea is highlighted.At last,problems during construction are summarized and solutions to the problems are discussed.Engineering practice shows that application of sprayed pure polyurea in protection of Hengshan Reservoir dam makes a creative breakthrough in terms of hydraulic structure reinforcement and takes great advantage over traditional technologies.The technology of applying sprayed pure polyurea in hydraulic dam＇s protection to ensure their long time safety has great practical significance.