潘家口水库泥沙淤积问题的研究

A study on sediment deposition of Panjiakou Reservoir

潘家口水库建于滦河中游，自１９８０年蓄水以来，对天津市及唐山地区的繁荣发展起了重大作用。然而，由于水库上游流域的水土流失比较严重，致使潘家口水库的泥沙淤积问题也相当严重。截至到１９９４年汛后，水库已淤积泥沙１．３×１０８ｍ３，占总库容的４．５％。本文就潘家口水库上游流域的水土流失状况及库区的泥沙淤积现状进行了分析，并利用数学模型就潘家口水库未来的淤积发展趋势进行了计算分析。分析结果表明：未来潘家口水库的淤积发展趋势不容乐观，应积极开展水库防淤减淤措施的研究。

The Panjiakou Reservoir is located on the middle reach of the Luan River. Since the impounding of the reservoir in 1980,it has contributed tremendously to the prosperity of Tianjin City and Tangshan district. Nevertheless,as the soil erosion in the watershed area of the reservoir is very serious, the problems of sediment deposition in this reservoir also severely occur. This paper describes the circumstances of the soil erosion in the watershed of the reservoir and the characteristics of the reservoir sedimentation. The trend of the reservoir deposition was calculated by a numerical model. It is found from the calculation that the prospects of the reservoir sedimentation can not be optimized and the measures to minimize the sediment deposition should be studied.