Groundwater Numerical Simulation Of Tanghai County, Hebei Province

China's rapid economic development and population growth brought about a significant increase in water demand, water wasted, inappropriate development and utilization of a range of issues.Especially in the northern region on the already scarce water resources to bring more pressure, the acceleration of urbanization and water into the city tense conflicts have seriously hampered our city into the city, but also restricts the overall development of our national economy.Tanghai County, Hebei Province is located in the Coastal Region of East Plain, flat terrain, north to south, due to the impact of climatic and geographical conditions, the groundwater north 31.6km2 full light district, the rest is salt water area. County industrial focus, many large companies for water, resulting in serious overexploitation of groundwater, groundwater level dropped drastically. How to scientific planning and rational use of limited groundwater resources, Xiediao relationship between man and nature, the establishment of a harmonious society, Shi Xian Sustainable development is the important task we are shouldering.In this paper, numerical method to simulate the study area, the aquifer study area takes into heterogeneous, isotropic, with more flow to the confined water diving supplies a conceptual model of the transition.Hydrogeological exploration and observation of selected data series the most complete in January 2000 to June 2002 for the simulation period of two hydrologic modeling of groundwater in the region's cultural process, the groundwater flow field and the region's three long-term groundwater observation holes well fitted by the dynamic curve simulation is high.Model can be used in the study area of the groundwater flow field as well as predict future changes in groundwater levels and flow field.In the current situation Tanghai County social, economic and population growth rates based on the calibrated model to predict future changes in groundwater level of 10 years to June 2009 forecast for the initial time to 2020, a total of 11 hydrological years.Predicted results show that:by 2020, gradually expanding funnel region has been involved in the salt water areas, Tang Hai District funnel and funnel Fengnan old Wangzhuang gradually larger area in the funnel; funnel center has reached the maximum depth of water 70.80m, the minimum depth of water funnel edge of 32.00m.Through the collection of information, the paper is divided into three parts of water balance analysis, were shallow (water area), light middle (full light area) and middle (salt region), were measured through the calculation of conclusion:In addition to the shallow salt water because there is no mining in the basic equilibrium, the main mining level is negative equilibrium, the average total negative balance of the region for the 1074×104m3 /a, where a negative balance of the main mining level 994×104m3/a.In summary, due to human activities leading to the complement of Tanghai County groundwater runoff and discharge conditions change, in order to ensure the sustainable use of water resources Tanghai County and socio-economic and ecological environment, sustainable development, exploitation of groundwater should be strictly controlled, implementation of measures related to water.