Karst Water Exploitation And Management Focus

From four perspectives:economic, technology, resources and environment, the articles concentrate on underground karst water source of supply water for comprehensive analysis and research in the jinning county niulian town and summed up a set of relatively system of karst water source development, assessment and management approach.On the basis of the full collection and analysis of regional geological background, hydrogeology of water source area, formulate the stratum lithology of water source area and analyzes groundwater storage, distribution and the routes of underground water supply, run off and drainage. On the basis of the above-mentioned research, calculated with natural recharge and natural excretion and recoverable resources.According to the water source area of the geographical location, Choose6kinds of water model and constructed water model of evaluation index system, Classified water security, adequate water, and water supply reliability and the cost of the water into five aspects of nature by adopting the comprehensive method based on entropy weight, On the application of the area where is most likely to be evaluated three kinds of development and utilization ways.Combined with the mining method, The factors influence quality of environmental geological system are picked up. they are karst collapse, ground subsidence, spring water run dry and the groundwater pollution. For greatly harmful covered karst, Combined with the Quaternary unconsolidated formation and groundwater levels rise and fall are analyzed. Considering factors of water level, micro landform and geologic structure, research the springs which is dried up; For karst water swab to cause, make rough idea of research on the quaternary loose bed consolidation compression ground settlement mechanism with the help of using Pillar modeling analysis method; by using the banding analysis method, dianchi lake water invasion of groundwater are analyzed.After such analysis, model of Management is built in the exploitation areas, on the basis of using multiple hole pumping data calculation,a natural flow field model is established, and for the exploitation of resources reasonable development condition, The recoverable of groundwater resources and the environment adopted as the constrain condition for sustainable exploitation limit to establish the production management model, This achievement can be used for guiding practices directly, The design method has been practised and gained good effects.