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Groundwater recharge and infiltration promoting method

A groundwater and water layer technology, applied in construction, infrastructure engineering, soil protection, etc., can solve the problems of low infiltration rate, speed up the infiltration rate of artificial recharge of groundwater, etc., and achieve improved infiltration rate, simple structure, The effect of convenient construction

Inactive Publication Date: 2012-06-27
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a groundwater artificial recharge infiltration method to solve the problem of low infiltration rate of the existing groundwater artificial recharge ground infiltration method, and the method can significantly accelerate the groundwater artificial recharge infiltration rate

Method used

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  • Groundwater recharge and infiltration promoting method
  • Groundwater recharge and infiltration promoting method
  • Groundwater recharge and infiltration promoting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1), the establishment of recharge pool 15:

[0036] The recharge tank is round or square; the depth of the recharge tank is 0.5m;

[0037] (2), the setting of the exhaust well in the recharge tank 15:

[0038] (1) The exhaust wells 4 are arranged in a square matrix, and the distance between the exhaust wells 4 is L=0.5R, where R is the hydraulic influence radius of the aquifer in the recharge area, and the empirical values ​​of R are:

[0039] (a) When the rock and soil are silt with a main particle size of 0.05-0.1 mm, the influence radius R is 25-50 m;

[0040] (b) When the rock and soil are fine sand with a main particle size of 0.1-0.25 mm, the influence radius R is 50-100 m;

[0041] (c) When the rock and soil are medium sand with a main particle size of 0.25-0.5 mm, the influence radius R is 100-200m;

[0042] (d) When the rock and soil are coarse sand with a main particle size of 0.5-1.0 mm, the influence radius R is 300-400m;

[0043] (2) The diameter of th...

Embodiment 2

[0058](1), the establishment of recharge pool 15:

[0059] The recharge tank is round or square; the depth of the recharge tank is 1.0m;

[0060] (2), the setting of the exhaust well in the recharge tank 15:

[0061] (1) The exhaust wells 4 are arranged in a square matrix, and the distance between the exhaust wells 4 is L=1.2R, where R is the hydraulic influence radius of the aquifer in the recharge area, and the empirical values ​​of R are:

[0062] (a) When the rock and soil are silt with a main particle size of 0.05-0.1 mm, the influence radius R is 25-50 m;

[0063] (b) When the rock and soil are fine sand with a main particle size of 0.1-0.25 mm, the influence radius R is 50-100 m;

[0064] (c) When the rock and soil are medium sand with a main particle size of 0.25-0.5 mm, the influence radius R is 100-200m;

[0065] (d) When the rock and soil are coarse sand with a main particle size of 0.5-1.0 mm, the influence radius R is 300-400m;

[0066] (2) The diameter of the...

Embodiment 3

[0081] (1), the establishment of recharge pool 15:

[0082] The recharge tank is round or square; the depth of the recharge tank is 1.5m;

[0083] (2), the setting of the exhaust well in the recharge tank 15:

[0084] (1) The exhaust wells 4 are arranged in a square matrix, and the distance between the exhaust wells 4 is L=2R, where R is the hydraulic influence radius of the aquifer in the recharge area, and the empirical values ​​of R are:

[0085] (a) When the rock and soil are silt with a main particle size of 0.05-0.1 mm, the influence radius R is 25-50 m;

[0086] (b) When the rock and soil are fine sand with a main particle size of 0.1-0.25 mm, the influence radius R is 50-100 m;

[0087] (c) When the rock and soil are medium sand with a main particle size of 0.25-0.5 mm, the influence radius R is 100-200m;

[0088] (d) When the rock and soil are coarse sand with a main particle size of 0.5-1.0 mm, the influence radius R is 300-400m;

[0089] (2) The diameter of the ...

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Abstract

The invention discloses a groundwater recharge and infiltration promoting method, and belongs to the technical field of groundwater artificial recharge. According to the method, a recharge tank is artificially dug and built on a high-permeability soil layer, coarse sand serving as an inverted filter backfill material is filled in the recharge tank, exhaust pipes capable of exhausting air in a vadose zone are arranged in the recharge tank and at the periphery of the recharge tank, and the exhaust pipes at the periphery of the recharge tank are exhausted by a vacuum pump. The exhaust pipes and an air extractor are arranged, so that the average infiltration rate of the recharge tank is improved by 4-5 times when groundwater is artificially recharged, and the effect is durable and obvious.

Description

technical field [0001] The invention belongs to the technical field of groundwater artificial recharge, and specifically refers to a method for accelerating the infiltration rate of artificial recharge of groundwater by discharging gas in a vadose zone through an exhaust channel. Background technique [0002] At present, the known groundwater artificial recharge ground infiltration method mainly utilizes natural depressions, riverbeds, ditches, relatively flat pastures or cultivated land, and ground collection and water delivery engineering facilities such as reservoirs, pit ponds, channels or excavated pools. Regularly attract and store surface water throughout the year, and use the natural water head difference between surface water and groundwater to make it naturally seep to replenish the aquifer to increase the storage of the aquifer, but the infiltration rate of this method is low. Contents of the invention [0003] The invention provides a groundwater artificial rec...

Claims

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Application Information

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IPC IPC(8): E02D3/00
Inventor 杜新强侯嘉维房云清郑龙群赵丽田恬
Owner JILIN UNIV
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