CN105863023A - Sponge city construction groundwater recharge well and rapid well formation method thereof - Google Patents
Sponge city construction groundwater recharge well and rapid well formation method thereof Download PDFInfo
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- CN105863023A CN105863023A CN201610370063.5A CN201610370063A CN105863023A CN 105863023 A CN105863023 A CN 105863023A CN 201610370063 A CN201610370063 A CN 201610370063A CN 105863023 A CN105863023 A CN 105863023A
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
- E03F1/002—Methods, systems, or installations for draining-off sewage or storm water with disposal into the ground, e.g. via dry wells
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Abstract
The invention provides a sponge city construction groundwater recharge well and relates to the technical field of drainage facility. The sponge city construction groundwater recharge well comprises a drill hole which penetrates an aquitard and a water-bearing sand layer, wherein the drill hole is internally provided with a rapid sponge; a gravel bed anti-filtration layer is arranged between the rigid sponge and the bottom of the drill hole; the outer layer of the rigid sponge is coated with a geotechnical fabric; the part, which is 20-30cmm away from the ground 1, at the top of the rigid sponge is provided with a sand layer anti-filtation layer which is flush with the road surface. The invention also provides a rapid well formation method of the recharge well. A drill machine is used for drilling holes; the sand gravel anti-filtration layer is paved at the bottom of the drill hole and is provided with the rigid sponge; the outer side of the rigid sponge is wrapped with a geotechnical fabric; then the sand layer anti-filtration layer is paved on the geotechnical fabric and is flush with the road surface, so that the groundwater recharge well is formed. The sponge city construction groundwater recharge well is capable of solving the problems of complex construction, high cost, long time and the like in groundwater infiltration facility during existing sponge city construction.
Description
Technical field
The present invention relates to pumping equipment technical field, specifically a kind of sponge urban construction ground water recharging well and quick well formation method.
Background technology
At present, ooze under sponge Process of Urban Development generally makes a part of rainwater after confluxing, purifying by facilities such as porous pavement, the infiltration pool, seepage well, the wet pool, Rain-fed wetlands, but effect of infiltrating is bad because not cutting through overlying aquiclude for other facility in addition to seepage well, seepage well generally uses heavy caliber shaft drilling and machine to dig a well Cast-in-situ Piles in Sand-filling gravel loaded filter, and construction is complicated, cost is high, construction area is many, the time is relatively long.
Summary of the invention
Being directed to underground water in existing sponge urban construction and infiltrate the problems such as complexity, cost height, time length of constructing present in facility, the present invention provides one sponge urban construction ground water recharging well, can avoid the generation of the problems referred to above.
The present invention solves its technical problem and is adopted the technical scheme that:
A kind of sponge urban construction ground water recharging well, including the boring penetrating aquiclude and aquifer sand layer, one hard foam is installed in described boring, sandy gravel stratum loaded filter it is provided with between described hard foam and foot of hole, having one layer of geotextiles at hard foam external sheath, the distance on hard foam top to ground 1 is to be placed with one layer of layer of sand loaded filter at 20-30cm to flushing with road surface.
Further, the diameter of described hard foam is more than boring aperture, and described hard foam is divided into some sections and is sequentially arranged in described boring.
Further, described hole month is set to back taper, and road gradient is 3%-5%, at the oblique drilling hole of road surface.
Further, also include a wellhead connection device, described wellhead connection device includes inverted well joint, permeable recharges well lid, sponge strip and interface channel, described hard foam top is provided with an inverted well joint, on described inverted well joint, spiral is provided with and permeable recharges well lid, it is provided with interface channel at hard foam periphery, in described interface channel, is placed with the mating shapes of sponge strip, described sponge strip and interface channel.
Further, described interface channel be U-lag, deep-slotted chip breaker or other there is the cell body of connection ability.
Further, outside interface channel, it is coated with a steel wire, inside described steel wire, is provided with spongy layer.
Further, described hard foam is provided above a road side stone, is provided with the L-shaped passage for rainwater diversion in described road side stone.
Further, being provided with a vertical passage in the middle part of the hard foam filled in the middle part of described boring, described vertical passage is cross scarfing, circular port or other shape holes.
Further, being provided with a wire in described vertical passage, described wire connects the sensor monitoring level of ground water water quality, water temperature.
Further, it is provided with an outer tube in the middle part of the hard foam filled in the middle part of described boring, described outer tube is provided with some flushing holes, described outer tube is nested with the water pipe for drawing water or the wire of sensor is installed.
Present invention also offers a kind of sponge urban construction ground water recharging well quick well formation method, comprise the following steps:
A () uses rig punching, bore diameter selects according to actual conditions；
B () lays sand gravel loaded filter at foot of hole；
C () is placed with hard foam on sand gravel loaded filter, after being coated with geotextiles outside described hard foam or the hard foam wrapping geotextiles being loaded permeable metal hose or rigid plastics flexible pipe again under in boring；
D () is placed with one layer of geotextiles at the top of hard foam, then be laid in geotextiles by layer of sand loaded filter, flushes with ground, forms ground water recharging well.Pollute more serious area on road surface or roof, can suitably increase the thickness of top anti-filter layer of sand or avoid the infiltration of initial polluted rain water with overhead permeable well lid.
The invention has the beneficial effects as follows:
The present invention can solve the problem that in existing sponge urban construction underground water to infiltrate present in facility to construct the problems such as complexity, cost height, time length.And the well completion method directly using rig to punch, fill with high-density sponge, easy to process, backfill is convenient, and avoids common seepage well and need to buy multiple backfilling material, the shortcoming wasted time and energy.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is the part preferred embodiment of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of first embodiment；
The structural representation of first embodiment when Fig. 2 is inclination and side has a lawn；
Fig. 3 is the structural representation of the second embodiment；
Fig. 4 is the structural representation of the second embodiment of longitudinal direction and lateral connection；
Fig. 5 is the structural representation of the 3rd embodiment；
Fig. 6 is the structural representation of the 4th embodiment；
Fig. 7 is the structural representation of the 5th embodiment.
In figure: 1 road surface, 2 borings, 3 layer of sand loaded filters, 4 hard foams, 5 aquicludes, 6 aquifer sand layers, 7 sand gravel loaded filters, 8 lawns, 9 permeable recharge well lid, 10 inverted well joints, 11 hard foam bars, 12 interface channels, 13 road side stones, 14L shape passage, 15 vertical passages, 16 water pipes, 17 outer tubes, 18 flushing holes.
Detailed description of the invention
Below in conjunction with specific embodiment and accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of preferred embodiment of the present invention rather than whole embodiments.Those skilled in the art can do similar deformation in the case of intension of the present invention, and therefore the present invention is not limited by following public specific embodiment.
First embodiment
As depicted in figs. 1 and 2, this sponge urban construction ground water recharging well includes a boring 2, described boring 2 may be provided at below roadside, lawn, parking lot, porous pavement, the place such as in community or unit institute, it is possible to uses the infiltration pool, seepage well, the wet pool, Rain-fed wetland etc. are internal.
As described in Figure 2, this boring 2 is arranged on road surface 1 at lawn 8 or in lawn 8.Described road surface 1 can be horizontal wall inscription common in urban construction be the road surface of 1.5%-2%, also the road surface 1 of gradient 3%-5% can be optimized for further, not changing original road structure, when there being precipitation to occur, rain (or snow melt) water will quickly flow to along slightly-inclined road surface 1 enter in boring 2.
Boring 2 cuts through after aquiclude 5 to aquifer sand layer 6 becomes well, first lays 20-30cm sand gravel loaded filter 7 bottom boring 2, is then contained in by hard foam 4 on the sand gravel loaded filter 7 of bottom.
A kind of more excellent design, the external sheath of described hard foam 4 has one layer of geotextiles.
A kind of more excellent design, the diameter of described hard foam 4 is more than boring aperture.Space is there is not between sponge and the borehole wall when so installing.
Described hard foam 4 can be sized for one section or several sections (can make one section of 5-10 rice) by drilling depth, the distance on hard foam 4 top to ground 1 is 20-30cm, place one layer of geotextiles bigger than orifice area the most again, then repave sand loading layer loaded filter 3 to flushing with road surface 1 or lower slightly (common soil layer of can mating formation above again time lower slightly), form ground water recharging well.
This inverted well, first directly uses rig punching, fills with high-density sponge, and easy to process, backfill is convenient, and avoids common seepage well and need to buy multiple backfilling material, the shortcoming wasted time and energy.
Although also there being similar seepage well to be made without backfilling operation, however it is necessary that employing wall casing supports, this well easily causes blocking during Rain water returning, if well head is open type, dangerous, night or other cas fortuits are easily fallen into wherein, cause casualties.And the inverted well in the application, use hard foam, first hard foam to play a supporting role, borehole collapse or sinking of ground will not be caused, even if local deformation situation of holing can occur, as the cushioning effect of sponge, do not affect rain infiltration, more personnel will not be caused injures and deaths.
Compared with common seepage well, because water is immersion liquid, and sponge has absorption, permeable and filtration, can carry out the infiltration of current under the suction-operated of sponge rapidly, strengthens and infiltrates effect, can filter out the impurity in rainwater simultaneously.The improvement project of this boring simultaneously is convenient, does his use as changed, it is not necessary to secondary punches, time saving and energy saving.
Second embodiment
As shown in Figure 3 and Figure 4, being to be added with wellhead connection device with the difference of first embodiment, described wellhead connection device includes an inverted well joint 10, permeable recharges well lid 9, sponge strip 11 and interface channel 12.The top of described hard foam 4 is provided with an inverted well joint 10, on described inverted well joint 10, spiral is provided with and permeable recharges well lid 9, well lid is slightly above ground, and this design can avoid early-stage rainwater pollution problem, and later stage clean rainwater can penetrate into by there being the chemosmotic permeable well lid 9 that recharges.
Hard foam 4 side is provided with interface channel 12, as described in Figure 4, it is provided with some interface channels 12 at hard foam periphery, described interface channel 12 can be U-lag, deep-slotted chip breaker or other there is the cell body of connection ability, sponge strip 11, described sponge strip 11 and the mating shapes of interface channel 12 it is placed with in described interface channel 12.Vertical or horizontal interface channel 12 is set, it is possible to intercommunication between different inverted wells, the rainwater having little time to infiltrate can be guided other inverted wells.
A kind of more excellent design, being coated with a steel wire outside interface channel, be provided with spongy layer inside described steel wire, this design steel wire provides certain support force, and spongy layer can carry out the infiltrating to interface channel of moisture, the beneficially water conservancy diversion of rainwater rapidly.
3rd embodiment
As it is shown in figure 5, be to be provided above a road side stone 13 at hard foam 4 with the difference of first embodiment, in described road side stone, it is provided with the L-shaped passage for rainwater diversion.
A kind of more excellent design, is provided with layer of sand loaded filter between hard foam and road side stone.
This being designed to, on the basis of not destroying existing road, is transformed, low cost, can well carry out again the infiltration of rainwater.
4th embodiment
Being with the difference of above-mentioned first three embodiment, being provided with a vertical passage in the middle part of the hard foam filled in the middle part of boring 2, this vertical passage is cross scarfing, circular port, or other shape holes.
This design, it is possible to when needs moisture, by going deep into water pipe with this vertical passage or other water drawing devices carry out water intaking and use or detection, chemical examination.
This design, also can be converted into this inverted well a detection well or monitoring well, be provided with a wire in described vertical passage, and described wire connects has sensor, in order to detect or to monitor level of ground water, water quality, water temperature or other parameters.Described sensor is level sensor, water quality sensor or temperature sensor.
5th embodiment is as shown in Figure 7.
Part unlike the embodiments above is, it is provided with an outer tube 17 in the middle part of the hard foam 4 filled in the middle part of boring 2, some flushing holes 18 it are provided with on described outer tube 17, when rainwater etc. is after repeatedly recharging, dust impurity or other article can be remained in the outside of hard foam 4, by flushing hole 18, these impurity can be washed from outside hard foam 4 by hard foam 4 bath, be conducive to more preferably carrying out faster recharging work.
Described outer tube 17 is also nested with for drawing water or the water pipe 16 of water sampling, or the wire of sensor is installed.
The invention also discloses a kind of sponge urban construction ground water recharging well quick well formation method, comprise the following steps:
A () uses rig punching, bore diameter selects according to actual conditions；
B () lays sand gravel loaded filter at foot of hole；
C () is placed with hard foam on sand gravel loaded filter, after being coated with geotextiles outside described hard foam or the hard foam wrapping geotextiles being loaded permeable metal hose or rigid plastics flexible pipe again under in boring；
D () is placed with one layer of geotextiles at the top of hard foam, then be laid in geotextiles by layer of sand loaded filter, flushes with ground, forms ground water recharging well.Pollute more serious area on road surface or roof, can suitably increase the thickness of top anti-filter layer of sand or avoid the infiltration of initial polluted rain water with overhead permeable well lid.
In addition to the technical characteristic described in specification, it is the known technology of those skilled in the art.
Claims (10)
1. a sponge urban construction ground water recharging well, is characterized in that, including one penetrate aquiclude and
The boring of aquifer sand layer, is provided with a hard foam, described hard foam and the boring end in described boring
It is provided with sandy gravel stratum loaded filter between portion, has one layer of geotextiles at hard foam external sheath, in hard sea
The distance on continuous top to ground 1 is to be placed with one layer of layer of sand loaded filter at 20-30cm to flushing with road surface.
A kind of sponge urban construction ground water recharging well the most according to claim 1, is characterized in that,
The diameter of described hard foam is more than boring aperture, and described hard foam is divided into some sections and installs successively
In described boring.
A kind of sponge urban construction ground water recharging well the most according to claim 1, is characterized in that,
Described hole month is set to back taper, and road gradient is 3%-5%, at the oblique drilling hole of road surface.
A kind of sponge urban construction ground water recharging well the most according to claim 1, is characterized in that,
Also include a wellhead connection device, described wellhead connection device include inverted well joint, permeable recharge well lid,
Sponge strip and interface channel, be provided with an inverted well joint at described hard foam top, recharge described
On well joint, spiral is provided with and permeable recharges well lid, is provided with interface channel at hard foam periphery, described
The mating shapes of sponge strip, described sponge strip and interface channel it is placed with in interface channel.
A kind of sponge urban construction ground water recharging well the most according to claim 4, is characterized in that,
Described interface channel be U-lag, deep-slotted chip breaker or other there is the cell body of connection ability, outside interface channel
Side is coated with a steel wire, is provided with spongy layer inside described steel wire.
A kind of sponge urban construction ground water recharging well the most according to claim 1, is characterized in that,
Described hard foam is provided above a road side stone, is provided with the L for rainwater diversion in described road side stone
Shape passage.
A kind of sponge urban construction ground water recharging well the most according to claim 1, is characterized in that,
Being provided with a vertical passage in the middle part of the hard foam filled in the middle part of described boring, described vertical passage is cross
Shape scarfing, circular port or other shape holes.
A kind of sponge urban construction ground water recharging well the most according to claim 7, is characterized in that,
Described vertical passage is provided with a wire, on described wire connect monitor level of ground water water quality,
The sensor of water temperature.
A kind of sponge urban construction ground water recharging well the most according to claim 1, is characterized in that,
It is provided with an outer tube in the middle part of the hard foam filled in the middle part of described boring, described outer tube is provided with some punchings
Water hole, is nested with the water pipe for drawing water in described outer tube or is provided with the wire of sensor.
10. a sponge urban construction ground water recharging well quick well formation method, comprises the following steps:
A () uses rig punching, bore diameter selects according to actual conditions；
B () lays sand gravel loaded filter at foot of hole；
C () is placed with hard foam on sand gravel loaded filter, be coated with geotechnique outside described hard foam
Cloth or after the hard foam wrapping geotextiles is loaded permeable metal hose or rigid plastics flexible pipe again under
In boring；
D () is placed with one layer of geotextiles at the top of hard foam, then layer of sand loaded filter is laid on geotechnique
On cloth, flush with ground, form ground water recharging well.More serious area is polluted on road surface or roof,
Can suitably increase the thickness of top anti-filter layer of sand or avoid initial polluted rain water with overhead permeable well lid
Infiltration.
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| CN106436728A (en) * | 2016-11-07 | 2017-02-22 | 天津城建大学 | High-polymer-material tubular seepage well and construction method |
| 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 |
| CN106758668A (en) * | 2016-12-01 | 2017-05-31 | 北京东方凌云科技有限公司 | A kind of new method of recharge underground water |
| CN108999262A (en) * | 2018-09-12 | 2018-12-14 | 汤文健 | A kind of sunk type greenery patches structure in sponge city |
| CN109208690A (en) * | 2017-07-06 | 2019-01-15 | 天津大学 | A kind of urban green space rapid construction and cheap rainwater collection utilization unit |
| CN111677082A (en) * | 2020-06-17 | 2020-09-18 | 西北综合勘察设计研究院 | Automatic infiltrating irrigation system for reducing urban inland inundation |
| CN113585436A (en) * | 2021-08-13 | 2021-11-02 | 中国一冶集团有限公司 | Tubular pile system permeates water |
| CN115369984A (en) * | 2022-09-22 | 2022-11-22 | 江苏龙腾工程设计股份有限公司 | Annular sponge seepage well and construction method thereof |
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| CN109208690A (en) * | 2017-07-06 | 2019-01-15 | 天津大学 | A kind of urban green space rapid construction and cheap rainwater collection utilization unit |
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| CN115369984A (en) * | 2022-09-22 | 2022-11-22 | 江苏龙腾工程设计股份有限公司 | Annular sponge seepage well and construction method thereof |
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