延安王瑶水库供水工程施工

Summary of construction of water supply work from Wangyao Reservoir to Yan'an

延安供水工程，管线长５２ｋｍ，沿线建筑物１１５座分部工程８３项，单项１０４６个，工期短、战线长，困难多，经过精心组织，科学施工，严格管理，仅用了４２０天，就提前完工，分部工程优良率达到９８．８％，单元工程优良率达到９０．５％。

Yan’an water supply work was a key project of Shaanxi Province in 1997. The lengthof water supply pipe line is 52km, with structures of 115. It is difficult because the constructionperiod is short, and the line is long, for the projrct consists of 83 divide works and 1046 individu-al works. By elaborate organization, scientific implementation, strict management, the construc-tion is completed in 420 days not only ahead of the schedule but also with the fine quality rate of98. 8% for divide works, and the fine quality rate of 90. 8% for individual works. It accumulatea lot of experience for speeding up the construction of water works.