CN104196005A - Efficient and anti-blocking water-bearing stratum supply device - Google Patents

Efficient and anti-blocking water-bearing stratum supply device Download PDF

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Publication number
CN104196005A
CN104196005A CN201410423788.7A CN201410423788A CN104196005A CN 104196005 A CN104196005 A CN 104196005A CN 201410423788 A CN201410423788 A CN 201410423788A CN 104196005 A CN104196005 A CN 104196005A
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China
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filter pipe
underground
efficient block
recharge
geotextiles
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CN201410423788.7A
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CN104196005B (en
Inventor
王维平
李法金
邓海燕
马喜堂
徐巧艺
张金
黄强
孙广浩
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University of Jinan
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University of Jinan
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Abstract

The invention discloses an efficient and anti-blocking water-bearing stratum supply device, and belongs to the technical field of water-bearing stratum supply, namely artificial underground water recharge. The device comprises a channel (1) and a plurality of water filtering and dredging devices (2) vertically distributed along the channel (1). Each water filtering and dredging device (2) comprises a front-arranged filter unit (3), a rear-arranged dredging well (5) and an underground filter pipe (4) densely provided with water through holes and communicating the front-arranged filter unit (3) and the rear-arranged dredging well (5). The front-arranged filter unit (3) is arranged at the bottom of the channel (1), and the rear-arranged dredging well (5) is arranged at the other end of the filter pipe (4). The efficient and anti-blocking water-bearing stratum supply device has the remarkable advantages of being simple in design structure, small in occupied space, high in underground water supply efficiency, free of energy consumption, convenient to construct, low in cost and the like.

Description

A kind of aquifer recharge device of high efficient block
Technical field
The present invention relates to aquifer recharge is Artificial Replenishment Technology for Ground Water field, is specifically related to a kind of aquifer recharge device of high efficient block.
Background technology
Northern Part of China shortage of water resources, underground water plays vital effect to agricultural and urban water supply, but due to agricultural and city stack water, groundwater mining, causes large area cone of groundwater district and has caused various the problems of geo-environment.In the area that has unnecessary flood and draw foreign water, for increasing groundwater resources amount, the aquifer recharge technical measures such as ground sweat (ditch, canal, basin etc.) and well water filling supply have been there are.Although yet ditch, canal, the investment of basin infiltration supply technology are less, effective, floor space is large, and affects mechanization of agriculture, at the northern area of per capita cultivated land's anxiety, development is restricted; Although it is high that efficiency is infiltrated in well water filling supply, easily produce and stop up, and water quality risk control to be difficult, effect and system life cycle are recharged in impact, and this is the reason that multiple aquifer recharge technology could not be widely used.
In order to solve, recharge efficiency, Chinese patent CN201210003853 application discloses the short infiltration method of a kind of groundwater recharge, on high osmosis soil layer, hand digging is built and is recharged pond, in recharging pond, filling coarse sand is as anti-filter backfill, and by adding stack and air extractor, can, when carrying out artificial groundwater recharge, the average infiltration rate of recharge well be improved to 4-5 doubly.For solving, recharge blockage problem, Chinese patent CN201120432424 application discloses a kind of for preventing the device of blockage of underground water recharge well, by multistage pipeline, cross box, be connected with desander, solve the problem that blocking of recharge well causes the individual well water yield to fill with fewer and fewer.But above-mentioned two kinds of technology all solve to recharge recharges efficiency, obstruction and energy consumption problem in process simultaneously.
Summary of the invention
For overcoming the deficiency of above-mentioned technology, the invention provides a kind of aquifer recharge device of high efficient block.Recharge groundwater of the present invention has and does not take up an area, and recharges efficiency high, and the relative well of cost recharges low, does not consume energy, and filter pipe is difficult for remarkable advantage such as obstructions grade.
The present invention is by the following technical solutions:
A kind of aquifer recharge device of high efficient block, comprise irrigation canals and ditches (1), it is characterized in that, also include several drainage Accrete clearing devices (2) along irrigation canals and ditches (1) vertical distribution, each drainage Accrete clearing device (2) comprises pre-filtering device (3), rearmounted desilting well (5) and for being communicated with a underground filter pipe (4) that is densely covered with limbers of pre-filtering device (3) and rearmounted desilting well (5); Pre-filtering device (3) is arranged on the bottom of irrigation canals and ditches (1), and rearmounted desilting well (5) is positioned at the other end of filter pipe (4).
Described pre-filtering device (3) is from top to bottom successively by geotextiles a(6), filtrate (7), supporting layer (8), waterflooding space (9) and base (10) form; Described geotextiles a(6) be laid in filtrate (7) surface; Described filtrate (7) is laid in supporting layer (8) surface; Described supporting layer has aperture on (8); Described waterflooding space (9) is connected with underground filter pipe (4).
Described underground filter pipe (4) has circle or rectangle treatment hole (13), and body is surrounded by geotextiles b(11 outward), the pipe end, is covered with coarse sand (12).
Described treatment hole (13) is circular, its aperture d 0=(2-5) d 50, pitch of holes l 0=(1-1.5) d 50, wherein d 0for Circularhole diameter, l 0for circular hole pitch of holes, d 50the largest particles diameter while being 50% for filter pipe position ground sample screening weight accumulative total.
Described underground filter pipe (4) gradient is 1/600-1/300.
Described filtrate (7) particle diameter d 50=(6-8) d 50, wherein d 50in filtrate screening sample particle composition, the weight of sieving accumulative total is 50% the largest particles diameter, d 50for source cement sand grain weight accounts for 50% the largest particles diameter.
The height H in described waterflooding space (9)=(1~3) D, wherein D is the diameter of underground filter pipe (4); Described base (10) is piled up and is formed by brick, is highly 0.5-1m.
Described supporting layer (8) is poly (methyl methacrylate) plate; Described geotextiles a(6) specification is 200-400g/m 2.
Described underground filter pipe (4) is double wall corrugated high-density polyethylene pipes; Described geotextiles b(11) specification is 200-400g/m 2.
The thickness of described coarse sand (12) is 10-20cm; The buried depth of described underground filter pipe (4) is lower than maximum underground water capillary rise height;
The buried depth of described underground filter pipe (4) is 2-4m.
The invention has the beneficial effects as follows:
The present invention can be by the water rapid recharge in irrigation canals and ditches to underground, and adopt ingress filtering technology, the body gradient to arrange and rearmounted desilting Jing San road measure, prevented to a great extent to recharge the generation of clogging in process, recharges efficiency high; In addition, when groundwater table raises, underground filter pipe can also carry out draining as gutter.Project organization of the present invention is simple, takes up little room, and does not consume energy, easy construction, and cost is low.
Accompanying drawing explanation
Fig. 1 is structural profile schematic diagram of the present invention.
Fig. 2 is engineering plan view of the present invention.
In figure, 1. rearmounted desilting well 6. geotextiles a 7. filtrate 8. supporting layer 9. waterflooding space 10. base 11. geotextiles b 12. coarse sand 13. treatment holes of the underground filter pipe 5. of irrigation canals and ditches 2. drainage Accrete clearing device 3. pre-filtering device 4..
The specific embodiment
Below in conjunction with specific embodiment, the present invention is described in further details.
Embodiment 1
A kind of aquifer recharge device of high efficient block, comprise irrigation canals and ditches (1), along several drainage Accrete clearing devices (2) of irrigation canals and ditches (1) vertical distribution, each drainage Accrete clearing device (2) comprises pre-filtering device (3), rearmounted desilting well (5) and for being communicated with a underground filter pipe (4) that is densely covered with limbers of pre-filtering device (3) and rearmounted desilting well (5); Pre-filtering device (3) is arranged on the bottom of irrigation canals and ditches (1), and rearmounted desilting well (5) is positioned at the other end of underground filter pipe (4).
Pre-filtering device (3) is from top to bottom successively by geotextiles a(6), filtrate (7), the supporting layer (8) that has hole, waterflooding space (9) and base (10) form; Geotextiles a(6) be laid in filtrate (7) surface; Filtrate (7) is laid in supporting layer (8) surface; Supporting layer has aperture on (8); Waterflooding space (9) is connected with underground filter pipe (4).Underground filter pipe (4) has circular treatment hole (13), and body is surrounded by geotextiles b(11 outward), the pipe end, is covered with coarse sand (12).
Wherein, circular treatment hole (13) aperture d 0=2 d 50, pitch of holes l 0= d 0, wherein d 0for Circularhole diameter, l 0for circular hole pitch of holes, d 50the largest particles diameter while being 50% for filter pipe position ground sample screening weight accumulative total.Filtrate (7) particle diameter d 50=6 d 50, wherein d 50in filtrate screening sample particle composition, the weight of sieving accumulative total is 50% the largest particles diameter, d 50for source cement sand grain weight accounts for 50% the largest particles diameter.
Underground filter pipe (4) gradient is set to 1/400; Height H=the D in waterflooding space (9), wherein D is the diameter of underground filter pipe (4); Base (10) is highly 1m; Geotextiles a(6) specification is 200g/m 2; Geotextiles b(11) specification is 200g/m 2; The thickness of coarse sand (12) is 10cm; The buried depth of underground filter pipe (4) is 2m.
Embodiment 2
An aquifer recharge device for high efficient block, its structure forms with embodiment 1.
Wherein, circular treatment hole (13) aperture d 0=3 d 50, pitch of holes l 0=1.2 d 0, wherein d 0for Circularhole diameter, l 0for circular hole pitch of holes, d 50the largest particles diameter while being 50% for filter pipe position ground sample screening weight accumulative total.Filtrate (7) particle diameter d 50=7 d 50, wherein d 50in filtrate screening sample particle composition, the weight of sieving accumulative total is 50% the largest particles diameter, d 50for source cement sand grain weight accounts for 50% the largest particles diameter.Underground filter pipe (4) gradient is set to 1/500; Height H=the 2D in waterflooding space (9), wherein D is the diameter of underground filter pipe (4); Base (10) is highly 0.7m; Geotextiles a(6) specification is 400g/m 2; Geotextiles b(11) specification is 200g/m 2; The thickness of coarse sand (12) is 15cm; The near-earth planar ends buried depth of underground filter pipe (4) is 3m.
Embodiment 3
An aquifer recharge device for high efficient block, its structure forms with embodiment 1.
Wherein, circular treatment hole (13) aperture d 0=5 d 50, pitch of holes l 0=1.5 d 0, wherein d 0for Circularhole diameter, l 0for circular hole pitch of holes, d 50the largest particles diameter while being 50% for filter pipe position ground sample screening weight accumulative total.Filtrate (7) particle diameter d 50=8 d 50, wherein d 50in filtrate screening sample particle composition, the weight of sieving accumulative total is 50% the largest particles diameter, d 50for source cement sand grain weight accounts for 50% the largest particles diameter.Underground filter pipe (4) gradient is set to 1/600; Height H=the 7D in waterflooding space (9), wherein D is the diameter of underground filter pipe (4); Base (10) is highly 0.5m; Geotextiles a(6) specification is 400g/m 2; Geotextiles b(11) specification is 400g/m 2; The thickness of coarse sand (12) is 20cm; The buried depth of underground filter pipe (4) is 4m.
In the present invention, base (10) can be adjusted its height according to pipe buried depth, has not only supported pre-filtering device (3), has also played the effect of pipe bank protection.Underground filter pipe (4) is seepage recharge groundwater not only, also plays the effect of water delivery, simultaneously also as the passage of sediment transport.Rearmounted desilting well (5) silt that not only receivability deposition is carried by filter pipe, can also artificial pumping keep certain water-head, make current scour fall the silt of filter pipe tube wall deposition, and deposit to shaft bottom, regularly cleaning, effectively prevent the obstruction of silt to filter pipe, and filter pipe can be interconnected to pipe network, effectively raise groundwater recharge supply effect, expanded groundwater recharge scope.Above-mentioned result of the test shows, in the middle of using 1 year of the present invention continuously, recharge efficiency continous-stable and keep higher level, do not monitor stopping state, this has fully demonstrated the present invention, and to recharge efficiency high, the not susceptible to plugging distinguishing feature of water-supply-pipe, and the present invention is simple in structure, take up an area less, cost is low, does not consume energy.
Below be only the preferred embodiment of the present invention, it should be pointed out that for this area researcher, under the premise of not departing from the present invention, can make some improvement, these improve and all belong to protection scope of the present invention.

Claims (10)

1. the aquifer recharge device of a high efficient block, comprise irrigation canals and ditches (1), it is characterized in that, also include several drainage Accrete clearing devices (2) along irrigation canals and ditches (1) vertical distribution, each drainage Accrete clearing device (2) comprises pre-filtering device (3), rearmounted desilting well (5) and for being communicated with a underground filter pipe (4) that is densely covered with limbers of pre-filtering device (3) and rearmounted desilting well (5); Pre-filtering device (3) is arranged on the bottom of irrigation canals and ditches (1), and rearmounted desilting well (5) is positioned at the other end of filter pipe (4).
2. the aquifer recharge device of high efficient block according to claim 1, is characterized in that, pre-filtering device (3) is from top to bottom successively by geotextiles a(6), filtrate (7), supporting layer (8), waterflooding space (9) and base (10) form; Described geotextiles a(6) be laid in filtrate (7) surface; Described filtrate (7) is laid in supporting layer (8) surface; Described supporting layer has aperture on (8); Described waterflooding space (9) is connected with underground filter pipe (4).
3. the aquifer recharge device of high efficient block according to claim 1 and 2, is characterized in that, described underground filter pipe (4) has circle or rectangle treatment hole (13), and body is surrounded by geotextiles b(11 outward), the pipe end, is covered with coarse sand (12).
4. the aquifer recharge device of high efficient block according to claim 3, is characterized in that, described treatment hole (13) is circular, its aperture d 0=(2-5) d 50, pitch of holes l 0=(1-1.5) d 50, wherein d 0for Circularhole diameter, l 0for circular hole pitch of holes, d 50the largest particles diameter while being 50% for filter pipe position ground sample screening weight accumulative total.
5. the aquifer recharge device of high efficient block according to claim 4, is characterized in that, described underground filter pipe (4) gradient is 1/600-1/300.
6. the aquifer recharge device of high efficient block according to claim 1 and 2, is characterized in that, described filtrate (7) particle diameter d 50=(6-8) d 50, wherein d 50in filtrate screening sample particle composition, the weight of sieving accumulative total is 50% the largest particles diameter, d 50for source cement sand grain weight accounts for 50% the largest particles diameter.
7. the aquifer recharge device of high efficient block according to claim 1 and 2, is characterized in that, the height H in described waterflooding space (9)=(1~3) D, and wherein D is the diameter of underground filter pipe (4); Described base (10) is piled up and is formed by brick, is highly 0.5-1m.
8. the aquifer recharge device of high efficient block according to claim 2, is characterized in that, described supporting layer (8) is poly (methyl methacrylate) plate; Described geotextiles a(6) specification is 200-400g/m 2.
9. the aquifer recharge device of high efficient block according to claim 3, is characterized in that, described underground filter pipe (4) is double wall corrugated high-density polyethylene pipes; Described geotextiles b(11) specification is 200-400g/m 2.
10. the aquifer recharge device of high efficient block according to claim 3, is characterized in that, the thickness of described coarse sand (12) is 10-20cm; The buried depth of described underground filter pipe (4) is 2-4m.
CN201410423788.7A 2014-08-26 2014-08-26 A kind of anticlogging aquifer recharge device Expired - Fee Related CN104196005B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106522306A (en) * 2016-12-17 2017-03-22 山东省水利科学研究院 Riverside underground water recharging system with composite functions of charging and pumping
CN107098492A (en) * 2017-05-04 2017-08-29 中国二十冶集团有限公司 Water treatment facilities and its application method
CN109183720A (en) * 2018-09-14 2019-01-11 济南大学 A kind of irrigation canals and ditches anti-clogging recharge filter device

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106522306A (en) * 2016-12-17 2017-03-22 山东省水利科学研究院 Riverside underground water recharging system with composite functions of charging and pumping
CN107098492A (en) * 2017-05-04 2017-08-29 中国二十冶集团有限公司 Water treatment facilities and its application method
CN109183720A (en) * 2018-09-14 2019-01-11 济南大学 A kind of irrigation canals and ditches anti-clogging recharge filter device

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