Reservoir Flood Routing Simulation for Dam Safety Management in Thailand
Rangsarit Vanijjirattikhan*,, Chinoros Thongthamchart**, Patsorn Rakcheep***, Unpong Supakchukul*, and Jittiwut Suwatthikul*
*National Electronics and Computer Technology Center
112 Thailand Science Park, Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand
**Geotechnical Engineering Research and Development Center, Kasetsart University, Bangkok, Thailand
***Electricity Generating Authority of Thailand, Nonthaburi, Thailand
A reservoir flood routing simulation software with spillway operation rules that are readable and configurable by the spillway operator is developed in this study. The software is part of the Dam Safety Remote Monitoring System used by the Electricity Generating Authority of Thailand. The flood routing simulation is implemented using a storage-indication routing method, which is a hydrologic method. The spillway operation rules are exhibited in a tree-based structure, in which the spillway gate opening is derived from the current reservoir water level (RWL), spillway gate opening, and flood situation if the peak inflow has passed. The simulation results show that the simulated RWL is similar to the RWL data in the dam construction manual. This verifies the accuracy of the reservoir flood routing simulation, which is useful for planning the spillway operation.
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