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吉林省有小型水库1308座,总库容2.96亿m~3,兴利库容1.94亿m~3,其中小(一)型水库205座。由于多年淤积,造成各种不良后果。现从东部山区、中部丘陵漫岗区及西部平原区选择了8座水库,实测了淤积资料,探讨小水库的淤积特点,以求采取措施,更好地发挥小水库的经济效益。横断面的淤积有:由库底较均匀上淤;横断面冲淤并存;主槽与滩地区别消失。8座小型水库纵向淤积形态为带状淤积。淤积泥沙的垂向分布不是由库底最低处层层叠加,受各种因素影响,可以在各级水位湿周上落淤,打破了长期以来认为死库容首先被填平淤满的观点,并探讨了小水库淤积的上延问题。
There are 1308 small reservoirs in Jilin Province, with a total storage capacity of 296 million m 3 and a storage capacity of 194 million m 3, of which 205 are small (a) type reservoirs. Due to years of silting, causing a variety of adverse consequences. At present, eight reservoirs are selected from the mountainous areas in the east, the hills in the central hills and the plain areas in the west of China. The siltation data are measured to discuss the sedimentation characteristics of the small reservoirs in order to take measures and give better play to the economic benefits of small reservoirs. Sedimentation of the cross-section are: more uniform siltation from the bottom of the reservoir; cross-section erosion and deposition co-exist; Longitudinal siltation of 8 small reservoirs is ribbon siltation. The vertical distribution of silt sediment is not superimposed by the bottom of the bottom of the reservoir but is affected by various factors and can be silted at various levels of water wet weeks to break the notion that the dead storage has been filled up and filled for a long time. And discussed the problem of the extension of siltation in small reservoirs.