Research On Implementation Plan And Effectiveness Of The Compression Of Groundwater Exploitation In Tianjin

Groundwater is not only an important source of water supply,but also an important element of environmental control,and it is also an important strategic reserve water source.A serious shortage of water resources in Tianjin City,surface water supply shortage,over the years to meet the water demand of economic and social development,long-term over exploitation of groundwater,resulting in groundwater resources depletion and environmental geological disasters,groundwater pollution and ecosystem degradation.This paper carries out the research on the implementation plan and the expected effect of underground water pressure in Tianjin City,which is of great significance to the healthy development and utilization of groundwater in Tianjin city.The underground water in Tianjin mining scheme and the expected results from the research to effectively grasp the situation of development and utilization of groundwater in Tianjin city to mining problems in the exploitation and utilization of groundwater resources,according to the distribution of regional groundwater and alternative water sources were reasonable groundwater exploitation target formulation on Tianjin City,Tianjin city to determine the underground water mining scheme the establishment of groundwater in Tianjin plain area numerical model(MODFLOW model),verification of Tianjin city deep underground pressure mining after the implementation of impact on the groundwater level effect,which has important significance for the underground water in Tianjin City,the healthy development and utilization.The main research contents and results of this paper are as follows:(1)analysis and evaluation of the groundwater resources and its current situation in Tianjin City,and obtain the groundwater resources and its distribution in Tianjin city;(2)according to the distribution of the existing county groundwater wells,groundwater exploitation,exploitation and utilization of groundwater,to complete the investigation of the status quo of the development and utilization of groundwater in Tianjin City,the problems caused by the over exploitation of groundwater and get the conclusion,the implementation of water pressure mining is necessary conclusion;(3)according to the existing water conditions and river water and reclaimed water can reach the water can be used instead of groundwater conditions,underground water in Tianjin city obtained mining scheme according to alternative sources of water;underground water in Tianjin city mining scheme to determine the amount of groundwater target alternative water resources exploitation in Tianjin City,won the Tianjin city underground water mining plan;(4)the establishment of groundwater numerical model,prediction of mining plan in the implementation of Tianjin underground water pressure situation,future time changes of groundwater level,for the rational utilization and protection to provide technical support and decision-making basis for the groundwater in Tianjin city.