抽水蓄能电站水库泥沙淤积计算初探

Prelimiary Research of Sediment Accumulation in Reservior for Pumped storage station

本文根据抽水蓄能电站的特点，提出了不同的水库类型应采用不同的泥沙淤积计算方法，并指出其与常规水库泥沙淤积计算的异同。文中介绍了泥沙过蓄能电站机组的含沙量与粒径，提出了台坪式上水库来沙量与淤积量的估算方法以及确定上水库泥沙淤积高程的方法。通过算例进一步阐明抽水蓄能电站水库泥沙的淤积计算方法与步骤。

This paper contributes the various calculating methods of sedimentation for the different type of reservoir in accordance with the characteristics of pumped storage station and indicatesthe sameness and difference between these methods and the calculating method of sedimentationfor conventional reservoir. The paper indroduces the sediment content and granule diameter inthe flow passing through the pumpturbine units and presents the assessment method for sediment inflow and sediment accuniulation in the upper reservoir with table ground type as well asthe method of determining elevation of sedimentation surface in upper reservoir. By the calculation example,the paper further illustrates these calculating method and procedures of sedimentaccumlation for pumped storage station.