Peer Study between Sediment Distribution Pattern in Reservoir and Estimation of Reservoir Real Life Time

摘要

Generally, the assumption on reservoir design is that the form of sedimentation is relative plain and fulfilling the reservoir bed under the certain elevation. However, the real sedimentation in reservoir is not like that. Sediment will distribute on the whole of reservoir bed and part of them is on the reservoir upstream of effective storage. This paper intended to implement the peer study between sediment distribution pattern by using empirical method and estimation the real life time of reservoir. The study was conducted in Karangkates Reservoir and the analysis used empirical method. Result showed that sediment measurement in Karangkates Reservoir indicated that about 70% of sediment total loaded in the upstream of reservoir such as in effective storage. Sedimentation in the upstream of reservoir will give advantage by increasing reservoir life time but there is the storage capacity decreasing of sediment volume. In addition, the process of sediment consolidation is paralel with the duration of sedimentation. Therefore, sediment will reduce and it will increase the reservoir life time.