Research On Water Resource Forecast And Optimization Management In Thick Wind Blown Sands Covered Area

For managing and sustainable using groundwater resources by scientific system, it is necessary to regard system engineering theory as guidelines, use modern management ways to study groundwater system,aiming at problems which exist in groundwater forecast and water resource management of coal mine district now. We should adopt the method that combined character with quantity and build a rational development and utilization scheme, thus utilize groundwater resources and protect the groundwater environment scientifically. The author have studied the problem that how to predict and utilize the groundwater resource in Western China, especial in the area which is rich of energy. The thesis is based on flow theory of groundwater system, study store and flow laws of groundwater in area that covered by thick windblown sands, and set up the prediction models of groundwater system and water resource in this area. The author have traversed the management decision optimization of water resource in this area using the fuzzy theory first time, and researched precipitation law and dynamic distributed, surface water distribution situation, total amount of water resource and water supply ability systematically in Shendong mine district. This thesis have mainly carried on the research work of the following several aspects: 1. Study of store and flow laws of groundwater in thick windblown sands covered area. In this part the author mostly research the flow model of groundwater in thick windblown sands covered area. Put forward mathematics model of groundwater movement and analyze modeling course of groundwater in Shendong mine area as an example. And study the mathematics model of saturation flows groundwater movement and the water dynamical disperse equation of contamination move and transform in detail. So it afford theory basis for rational exploitation and utilizing continuously of the groundwater in drought district. 2. Study of groundwater system forecast in thick windblown sands covered area. This section mostly research groundwater system forecast in thick windblown sands covered area. The author considers actual situation in this area, set up groundwater system forecast mathematics model which based on the finite element method. And set up groundwater model and forecast by adopting improved error backpropagation artificial neural networks arithmetic in mine area. In addition, Shendong mine area which regarded as an example is carried on experiment. 3. The optimization study of groundwater system management in thick windblown sands covered area. Aimed at the hydrogeology and water resource situation, fuzzy optimization theory is applied to groundwater management decision study. The author sets up time sequence multiple targets system fuzzy optimization decision model, and work out the groundwater exploitation benefit optimum scheme of Shendong mine area by using multiple targets decision fuzzy linearity weighting average comprehensive judgement formula. 4. Study of water resource total amount and water quality in Shendong mine area. In this section, the author study water resource total amount and mine ore area water supply ability, appraise the groundwater quality of water head site and set up water quality appraise mathematics model according to the fuzzy theory, moreover appraise the water quality of Shendong mine area. Analyzing the source and reusing technique of mine water in detail and researching the reuse and quantity of reusing mine water in this area. 5. Study of water resource adjustment and match and optimization in Shendong mine area. Shendong mine area locates in Northwestern China where is not only drought but short of rain and water resource. With diggings'development, population increase, rapidly expanding of other industries which match with mining, we should bring forward research of water resource adjustment and match and optimization as soon as possible. The author analysis hydrology of representative mine and water power relative factors in detail, sets forth research of water resource adjustment and match and optimization and its development trend, puts forward its model and resolve steps by using inheritance arithmetic. Furthermore, The author forecasts water resource requirement of Shendong mine area in the near future, researches groundwater existing and dynamic, water resource quantity and reliability of water supply in Haolebaoji.