Inland water-bearing system saline water and fresh water interaction displacement simulation device and method

Abstract

An inland water-bearing system saline water and fresh water interaction displacement simulation device comprises a water supply device, a waterhead control device and a seepage device, wherein the water supply device comprises a first water supply bottle and a second water supply bottle, the seepage device comprises a first seepage column simulating a diving system and a second seepage column simulating confined water, and the bottom of the first seepage column and the bottom of the second seepage column are communicated through a pipeline; the first seepage column and the second seepage column are filled with media respectively; a water outlet is formed in the upper end of the second seepage column, and a piezometer tube is arranged on the water outlet; an overflow port is formed in the upper portion of the first seepage column and communicated with an overflow bottle through a pipeline. According to the inland water-bearing system saline water and fresh water interaction displacement simulation device and method, water-rock interaction and water chemical action during periodical saline water and fresh water alternation in the wet season and dry season can be simulated, and scientific basis is provided for predicting the trend of salinization of inland shallow groundwater and controlling shallow salt water.

Description

technical field [0001] The invention relates to a simulation device and a simulation method, in particular to a hydrogeochemical action simulation device and a simulation method in the process of salty and fresh water interactive displacement in an inland water system. Background technique [0002] Water resources are scarce in the northern plains, and excessive exploitation of deep freshwater resources induces land subsidence. Due to poor water quality and poor mining technical conditions, shallow groundwater with wide distribution has a low utilization rate of shallow groundwater, especially shallow saline water and brackish water. The water has not yet been developed, and people have not paid enough attention to the resource value of shallow saline water, resulting in a low degree of research on inland shallow saline water, especially the formation and evolution of shallow saline water and its hydrogeochemical processes. Deep understanding. [0003] Therefore, the develo...

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Problems solved by technology

[0002] Water resources are scarce in the northern plains, and excessive exploitation of deep freshwater resources induces land subsidence. Due to poor water quality and poor mining technical conditions, shallow groundwater with wide distribution is low in development and utilization, especially shallow saline water, brackish

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