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广西柳城县一座小型水电站,装机2×640千瓦,水头46米,最大引用流量3.0米~3/秒,压力水管为现场浇筑(整体式)的钢筋混凝土管,内径1.2米,外径1.7米。管壁内布置双层环向钢筋,纵向布置构造钢筋。压力水管自1980年建成后,因施工质量未能满足设计要求,在投入运行不久,由于温度变化而产生了环向裂缝,至1982年初在206米管段范围内,共出现环向裂缝21条,其中有8条裂缝宽达3～5厘米,变成若干分段孤立的管段。1982年5月曾对这些裂缝作过一次全面处理,但经过两个月运行后,大部分裂缝又大量漏水,因而被迫停机。
Guangxi Liucheng a small hydropower station, installed 2 × 640 kilowatts, 46 meters head, the largest reference flow 3.0 m ~ 3 / s, pressure pipe for the site pouring (monolithic) reinforced concrete pipe, diameter 1.2 m, diameter 1.7 m. The pipe wall layout of the double loop steel, vertical layout of the structure of steel. Since the completion of the pressure water pipe in 1980, due to the construction quality failed to meet the design requirements, shortly after put into operation, due to the temperature change, a circumferential crack was generated. By the beginning of 1982, there were 21 circumferential cracks in 206 meters pipe section, There are 8 cracks wide 3 ~ 5 cm, into a number of segmented isolated pipe. These cracks were dealt with in full scale in May 1982. However, after two months of operation, most of the cracks leaked extensively and were therefore forced to shut down.