SU1214865A1 - Method of intensifying replenishment of subsoil water - Google Patents

Description

The invention relates to water supply and can be used to intensify the replenishment of the reservoir reserves of groundwater in closed aquifers.

The purpose of the invention is to increase the efficiency of groundwater recharge.

The drawing shows the scheme of groundwater recharge, which implements the proposed method.

The groundwater replenishment scheme consists of a drained zone 1 of a closed aquifer 2, overlapped by an impermeable roof 3, an opening (grating} 4 in the mine of a viewing well 5, a horizontal water intake 6, a level 7 of water in the river (power circuit) in the low-water period, a depression surface 8 permeable section in the river bed 9, level 10 of water in the river in the wet period, ventilation pipe 1, infiltration structure (basin) 12, level 13 of groundwater when replenishing the aquifer, level 14 of groundwater at ii drained into the pressure zone present prevshgayu- atmospheric.

Method of intensification of replenishment

groundwater is carried out in the following way.

In the abundant zone 1 of the aquifer 2, covered by an impermeable roof 3, for example, clay soils or a layer of seasonal permafrost, devices are installed that allow the zone to communicate with the atmosphere, for example, the holes in the mine of the observation well 5 of the horizontal water intake 6 maintained. In the low-water period, at a water level of 7 in the river, above the depressed surface 8 of the groundwater, the intake pressure of 6 sets atmospheric pressure by contacting the drained zone 1 with the atmosphere after A hole 4 and a well-permeable section in the river’s bed. 9.

VNIIPI Order 866/44 Circulation 688 Subscription Branch PPP Patent, g.Uzhgor ed, ul.Proektna, 4

148652

When the water level in the river rises, the depressive surface of the water supply is ensured and the air is unhindered from the drainable zone 1 of the aquifer 2 through the contact zones, and when the level of water in the river rises above the level of the impermeable roof

 The air is only forced out through the openings 4 and then through the vent pipe 11 to the atmosphere. When filtering water from infiltration structures 12 artificial systems

 5, the groundwater recharge level is curved and the air from zone 1 is forced out into hole 4, and atmospheric pressure is maintained over the depressed surface

20 The level of groundwater in the aquifer 2 rises to position 13, corresponding to the level 10 of water in the river, to the flow of water coming from the infiltration facilities 12

25 and the water intake structure 6, i.e. capacitive stocks are restored completely. For aquifers 2, covered by an impermeable roof 3, which has a great power, or when reconstructing water intakes, a borehole filter is used as special devices to ensure contact of the drained zone with the atmosphere.

35 which is installed in the drained zone.

The proposed method is particularly effective in the operation of low-power aquifers of the river

40 valleys, operation of which is provided mainly by replenishing groundwater from the river during relatively short flood periods, when it is important to ensure the full recovery of reservoir reserves, as well as during operation of infiltration facilities with seasonal groundwater recharge, when needed in a relatively short high-water period.

Q fully fill the reservoir reserves of the exploited aquifer.

Claims (1)

METHOD OF INTENSIFICATION OF RECOVERY OF UNDERGROUND WATERS, which consists in increasing the pressure difference in a closed aquifer and in the supply circuit, characterized in that, in order to increase the efficiency of replenishing groundwater reserves, in a closed aquifer in a drained zone above the depressed groundwater surface atmospheric pressure. J., „1214865