Study On Rainwater Optimal Attemper Of Landscaping Riverway

With rapid social economic development and population booming, Shortage Problem of water resources is becoming more serious, so it is necessary to take some concrete measures to control this problem. As major natural water resources, rainwater utilization is emphasized by people. Much rainwater was discarded because of unscientific scheduling methods, then rainwater could not be utilized fully, so it is meaningful to establish Decision Support System of the rainwater optimizing operation.Landscape River of a region in north china was ragarded as the object in this paper. Based on research area planning and past years'rainfall data, the rainfall was predicted successfully, through comprehensive application of multi-disciplinary theories and methods. And based on this rainwater storage and outflow operation model was established. Scheduling methods was generated by adopting the Scenario Analysis and proposing rainfall scenario. At last,Decision Support System of the rainwater optimizing operation for landscape river was developed,which provided effective measures and decision support for management.Firstly, Grey-markov Model for forecasting rainfall was established. The method of forecasting rainfall grade was proposed.The result of forecast was accords with the requirement of practicality.Secondly, the rainfall optimizing operation model was established, in which the aim was that waterstorage of landscape river was maximum. The Constraint Conditions included security of the area, storage capacity of landscape river, and drainage capacity of river and so on. The model was solved, and the optimal algorithm of dispatch scheme was gained. Based upon the theory of dividing flood season, the result was more applicable to practical condition. At the same time, the effects of underlying surface, rainfall Intensity and period on runoff coefficient were taken into account.Thirdly, reasonable scheduling methods were generated by adopting the Scenario Analysis and proposing rainfall scenoria. On the premise of ensuring safety of river and area, the storage capacity was maximum.At last, Decision Support System of the rainwater optimizing operation based on SQL server 2000 was developed, adopting Delphi 7.0 and matlab for programmer. Recording, editing, querying and deleting data of monitoring were realized, which could supply datas for rainwater scheduling. At the same time, forecasting rainfall was realized. Besides, the frame of software systems was built for research results.