A Quantitative Method for Water Resources Effect in Coal Mining Subsidence Area

Abstract

The invention provides a quantitative method for the water resource effect in a coal mining subsidence area. The quantitative method includes the steps of obtaining a first accumulated water area and a first accumulated water level in a accumulated water area in the coal mining subsidence area; obtaining a second accumulated water area and a second accumulated water level in the accumulated water area in the coal mining subsidence area; obtaining the average accumulated water area in the accumulated water area in the coal mining subsidence area according to the first accumulated water area and the second accumulated water area, and obtaining the average accumulated water level of the accumulated water area in the coal mining subsidence area according to the first accumulated water level and the second accumulated water level; quantifying the water resource effect in the coal mining subsidence area according to the average accumulated water area, the average accumulated water level and the underground water level through a water amount balance relationship. The quantitative method for the water resource effect in the coal mining subsidence area can work out the water resource composition and water circulation process of the coal mining subsidence area without many various observation experiments developed for a long time, save the work cost, and reduce research difficulty.

Description

technical field [0001] The invention relates to water conservancy technology, in particular to a quantitative method for water resource effects in coal mining subsidence areas. Background technique [0002] In the process of coal mining, when the area of ​​the goaf expands to a certain extent, the rock formation moves to the surface, and the surface sinks downward from the original elevation, causing surface subsidence, thus forming a ratio of goaf area above the goaf. much larger subsidence area. In some areas with a high groundwater phreatic level, once the surface subsides, it is easy to form perennial water accumulation areas, causing surface swamps, affecting farming, and significantly destructive to land use. [0003] However, the water in the coal mining subsidence area is an available water resource, which has the value of development and utilization, which is very important to solve the problem of water shortage in the region. To develop and utilize water resource...

AI Technical Summary

Problems solved by technology

[0004] However, the spatial scale of coal mining subsidence areas is generally relatively large, and the environmental conditions are relatively complex and changeable. It is costly and difficult to quantify water resource effects through traditional experimental methods

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