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1982年我们在宁乡田坪水库灌区进行了水泥土预制块渠道防渗衬砌的现场试验。采用自制的压块机压制预制块,三台机工作四十天,生产3.7万块。自1982年7月至10月,完成了水泥土试验段的渠道衬砌施工1.2公里。经过四年多的运用,1986年12月我们对该段渠道的状况进行了检查。本文就其质量和耐久性方面反映出来的问题,小结如下,供评价这种衬砌的技术性能参考。
In 1982, we conducted a field test on the impermeable lining of cement-soil prefabricated blocks in Ningping Tianping Reservoir Irrigation District. Using homemade briquetting machine to suppress prefabricated blocks, three machines work 40 days, producing 37,000. From July to October 1982, the tunnel lining construction of cement soil test section was completed 1.2 km. After more than four years of use, we examined the condition of the channel in December 1986. The problems that this article reflects in terms of its quality and durability are briefly summarized below, for the purpose of evaluating the technical performance of such linings.