Method for site selection of underground reservoir in over-exploitation area and determination of regulation and storage capacity

Abstract

The invention discloses a method for site selection of an underground reservoir in an over-exploitation area and determination of regulation and storage capacity. The method comprises the following steps: 1, selecting a regulation and storage favorable zone formed by underground water over-exploitation as a pre-selected underground reservoir site; 2, dividing hydrogeological units; 3, drawing a hydrogeological profile map, revealing the spatial distribution state of the underground aquifer, and dividing the aquifer into a permeable layer, a weak permeable layer and an impermeable layer; 4, calculating the control area of each well point on the area of the pre-selected underground reservoir site by using GMS software; 5, calculating the volumetric method regulation and storage capacity of the pre-selected underground reservoir by adopting a volumetric method; and 6, drawing a two-dimensional contour map and a three-dimensional surface map of the aquifer data through surfer software; calculating the pre-selected underground reservoir regulation and storage capacity by adopting a volumetric method, if the difference between the volumetric method regulation and storage capacity and thevolumetric method regulation and storage capacity is within 10%, taking the pre-selected underground reservoir as an underground reservoir site, and taking the average value of the two methods as anunderground reservoir regulation and storage capacity value, and the method achieves precise location and storage capacity calculation of a reservoir.

Description

Technical field [0001] The invention relates to the field of groundwater management, and is used for determining the location of a groundwater reservoir in an over-exploitation area and calculating its storage capacity. Background technique [0002] In recent years, due to the rapid increase in population and rapid economic and social development, there has been a clear upward trend in water consumption. The surface water body is limited and seriously polluted. People have over-exploited groundwater. my country, especially in the north, has produced a large-scale contiguous groundwater funnel area. [0003] The surface water resources that were originally available in the northern plains are relatively small, and the demand for industrial, agricultural, and domestic water has forced people to rely on the exploitation of groundwater to ensure the supply of water resources, which led to the formation of groundwater overexploitation areas. Groundwater over-exploitation areas are pron...

AI Technical Summary

Problems solved by technology

Groundwater overexploitation areas are likely to cause environmental geological disasters and ecological environment damage such as land subsidence, ground cracks, sea salt water intrusion, water environmental pollution, etc., bringing great harm to the local water ecological environment and people's production and life.

At the same time, due to the continuous decline of the groundwater table, especially the formation and continuous expansion of the groundwater funnel area, it is easy to accelerate the infiltration rate of surface sewage and aggravate the pollution of groundwater.

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