CN211472699U - Novel seepage pipe water taking structure for sediment-rich river - Google Patents
Novel seepage pipe water taking structure for sediment-rich river Download PDFInfo
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- CN211472699U CN211472699U CN201921787117.3U CN201921787117U CN211472699U CN 211472699 U CN211472699 U CN 211472699U CN 201921787117 U CN201921787117 U CN 201921787117U CN 211472699 U CN211472699 U CN 211472699U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 90
- 239000013049 sediment Substances 0.000 title claims description 8
- 230000008595 infiltration Effects 0.000 claims abstract description 72
- 238000001764 infiltration Methods 0.000 claims abstract description 72
- 238000009991 scouring Methods 0.000 claims abstract description 8
- 239000004576 sand Substances 0.000 claims description 22
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 15
- 239000004575 stone Substances 0.000 claims description 15
- 239000004567 concrete Substances 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000004746 geotextile Substances 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004062 sedimentation Methods 0.000 abstract description 2
- 238000000746 purification Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 12
- 238000010276 construction Methods 0.000 description 10
- 238000001914 filtration Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000011435 rock Substances 0.000 description 6
- 238000009412 basement excavation Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 239000002352 surface water Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/40—Protecting water resources
- Y02A20/406—Aquifer recharge
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Abstract
The utility model discloses a novel seepage pipe water taking structure of a sediment-laden river, which comprises a vertical shaft arranged at the river edge and a seepage pipe groove communicated with the vertical shaft; the vertical shaft penetrates through the river natural scouring layer from the ground to the bedrock; the infiltration pipe groove is arranged in the bedrock at the bottom of the river, keeps a certain length and gradient along the river channel, and the tail end of the infiltration pipe groove is connected with the vertical shaft; the bottom of the vertical shaft is lower than the plane of the infiltration pipe groove, and a sedimentation well section for storing silt is arranged below the connection position of the infiltration pipe groove; the infiltration pipes with a certain length are buried in bedrock at the bottom of the riverbed of the sediment-laden river, and the purification effect of the filter layer is utilized to increase the infiltration and replenishment area of the river water and convert the river water into underground water to the maximum extent so as to meet the water supply requirement of towns in semiarid regions.
Description
Technical Field
The utility model belongs to the technical field of geological engineering, especially, relate to novel infiltration pipe water intaking structure of many silt rivers.
Background
In the sandy river areas of the western inland of China, urban water supply often cannot directly utilize river water, and only can be used for exploiting underground water, and the traditional water taking method for converting the river water into the underground water comprises the following steps: the seepage canal, the canal well, the large-caliber well and the radiation well are all dependent on the filtering function of the aquifer, the sediment is kept in the river bed, and the seepage and replenishment of surface water of a sediment-rich river are stimulated by reducing the water level of the submerged aquifer in the valley area, so that the purpose of collecting clean underground water is realized.
According to a great deal of practice, river bypass wells, large-caliber wells and radiation wells do not damage natural aquifers, but a fourth series aquifer with the thickness of more than 5 meters and strong water permeability is needed to obtain the high-strength supply of rivers so as to achieve the aim of continuously taking water, and when the flood-deposited sediments in a river valley region of a sediment-laden river are small in thickness and the sediment content in the river sediments is high, the water taking effect is poor, and the requirement of the water supply amount is difficult to meet; the infiltration channel (corridor) is a water taking structure positioned under a river bed, is also a water taking mode of exciting leakage supply of surface water of the river, is suitable for the fourth river bed with the thickness less than 5 meters, the river bed needs to be excavated during construction, and then side walls and vault are constructed manually, but the process is complex, the construction cost is high, the construction period is long, the management and the maintenance are difficult, and the excavation depth of the infiltration channel is limited, so that the infiltration channel (corridor) cannot reach the underlying rock stratum generally, the construction foundation of the infiltration channel (corridor) is unstable, the infiltration channel (corridor) is easy to be washed by river flood, and the infiltration channel (corridor) can only be used as a temporary.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a novel infiltration pipe water intaking structure of many silt rivers, it has solved the problem that current infiltration canal technology is complicated, the construction cost is high, the construction cycle is long, be difficult to the management maintenance.
The utility model aims at solving through the following technical scheme:
the novel seepage pipe water taking structure for the sediment-laden river comprises a vertical shaft arranged at the river side and a seepage pipe groove communicated with the vertical shaft;
the vertical shaft vertically penetrates through the river natural scouring layer from the ground to the bedrock layer;
the infiltration pipe groove is arranged in a bed rock layer at the bottom of the river;
one end of the infiltration pipe groove extends into the river channel, and the other end of the infiltration pipe groove is communicated with the vertical shaft.
Further: the bottom of the vertical shaft is lower than the plane where the bottom of the pipe infiltration tank is located, and the part of the vertical shaft, which is lower than the bottom of the pipe infiltration tank, is set as a settling well section for storing silt.
Further: and a water pump and a water outlet pipe connected with the water pump are arranged in the vertical shaft.
Further: and a flood control ring is arranged at an outlet at the upper end of the vertical shaft.
Further: one end of the infiltration pipe groove extending into the river channel is obliquely arranged from top to bottom towards the other end of the infiltration pipe groove communicated with the vertical shaft.
Further: and a plurality of concrete buttresses are uniformly arranged in the infiltration pipe groove at intervals.
Further: and a steel infiltration pipe is erected on the concrete buttress and is fixedly connected with the concrete buttress.
Further: and laying first coarse sand below the infiltration pipe.
Further: pebbles, gravels, second coarse sand, permeable geotextile and medium-fine sand are sequentially paved above the infiltration pipe.
Further: and the middle fine sand is provided with a lead wire cage block stone, and the periphery and the top surface of the lead wire cage block stone are backfilled by a river natural scouring layer.
Compared with the prior art, the utility model discloses the beneficial effect who has is:
the utility model discloses an infiltration pipe groove is opened in the bed stratum under the riverbed aquifer, the infiltration pipe is located in the bed stratum groove, the lead wire cage block stone is added at the top for protection, the infiltration pipe can not be damaged by flood; the infiltration pipe takes a natural foundation stratum as a side wall, and an arch crown does not need to be built, so that the construction cost is reduced, and the cost per meter is low; the infiltration pipe is made of a formed steel material, so that the material is convenient to obtain, the construction period is short, the service life is long, and the continuity and stability of water taking quantity are ensured;
compared with the river mining well in the prior art, the utility model is used for the fourth river with the thickness less than 5 meters on the riverbed, and the infiltration pipe is buried at the bottom of the riverbed, so that the infiltration and supply of the river water can be directly excited, and the river with much silt is converted into the underground water to be a reliable urban water supply source;
further: the utility model discloses according to the fourth system permeability of riverbed, target water intaking volume factor, the reasonable selection is opened up and is laid the length, and construction process simplifies, and used building material easily draws materials on the spot, is suitable for the water supply of the small-size cities and towns of arid semi-arid area many silt rivers coastal.
Drawings
FIG. 1 is a schematic cross-sectional view of the water intake principle of the present invention;
FIG. 2 is another schematic cross-sectional view of the water intake principle of the present invention;
fig. 3 is a schematic structural diagram of another embodiment of the present invention;
fig. 4 is a schematic diagram of the water intake principle of the present embodiment.
Wherein: 1. a shaft; 2. a infiltration pipe groove; 3. punching and laminating; 4. a basal rock layer; 5. settling the well section; 6. a water pump; 7. a water outlet pipe; 8. a flood control ring; 9. concrete buttress; 10. infiltrating a pipe; 11. first coarse sand; 12. pebbles; 13. gravel; 14. second coarse sand; 15. a water permeable fabric; 16. medium fine sand; 17. lead wire cage block stone.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings:
example 1
As shown in figure 1, the novel seepage pipe water taking structure for the sediment-laden river comprises a vertical shaft 1 arranged at the river side and a seepage pipe groove 2 communicated with the vertical shaft 1.
The shaft 1 is vertically passed from the surface through a river natural pad 3 into a basement rock 4.
The bottom of the vertical shaft 1 is lower than the plane where the bottom of the pipe infiltration groove 2 is located, and the part of the vertical shaft 1, which is lower than the bottom of the pipe infiltration groove 2, is set as a sedimentation well section 5 for storing silt.
Referring to fig. 2, a water pump 6 and a water outlet pipe 7 connected with the water pump 6 are arranged in the shaft 1.
The outlet of the upper end of the shaft 1 is provided with a flood control ring 8.
The infiltration pipe groove 2 is arranged in a foundation stratum 4 at the bottom of the river.
One end of the infiltration pipe groove 2 extends into the river channel, and the other end of the infiltration pipe groove 2 is communicated with the vertical shaft 1.
One end of the infiltration pipe groove 2 extending into the river channel is obliquely arranged from top to bottom towards the other end of the infiltration pipe groove 2 communicated with the vertical shaft 1.
A plurality of concrete buttresses 9 are uniformly arranged in the infiltration pipe groove 2 at intervals, steel infiltration pipes 10 are erected on the concrete buttresses 9, and the infiltration pipes 10 are fixedly connected with the concrete buttresses 9.
First coarse sand 11 is laid below the infiltration pipe 10, a filter layer is laid above the infiltration pipe 10, and the filter layer sequentially comprises pebbles 12, gravels 13, second coarse sand 14, permeable geotextiles 15 and medium fine sand 16 from bottom to top.
The fine medium sand 16 is provided with a lead wire cage block stone 17, and the periphery and the top surface of the lead wire cage block stone 17 are backfilled by the river natural scouring layer 3.
The filter layers between the infiltration pipe groove 2 and the natural scouring layer 3 have various combination forms, and one structural form is shown in figure 3.
Referring to fig. 1 and 4, the utility model discloses a ooze pipe water intaking method of converting silt-rich river into groundwater, its principle is: when a water pump 6 in a vertical shaft 1 pumps water, the water level in the shaft is quickly reduced, underground water is converged to the vertical shaft 1 by a seepage pipe 10, the water level in the seepage pipe 10 is reduced at the moment, a water head difference is formed between the water level and the water level in an upper filtering layer, the underground water flows downwards to enter the seepage pipe 10 under the action of hydrostatic pressure, meanwhile, after the water level in the filtering layer is reduced, surface water of a natural riverbed is stimulated to downwards enter the seepage to become the underground water, the underground water in the filtering layer is replenished, silt in the riverbed is intercepted on the riverbed due to the obstruction of the filtering layer, and therefore, the multi-silt riverwater is converted into clean underground water in circulation.
Shaft 1: the water intake of the infiltration pipe 10 is finally collected and the water pump 6 is installed to lift water, the cylindrical structure (refer to fig. 2) is arranged on the side part of a river valley, the inner diameter is generally not less than 1.5m so as to meet the requirements of installing the water pump 6 and a pipeline, the well depth of the vertical shaft 1 is determined according to the fourth series thickness of the position and the embedment depth of the infiltration pipe 10, wherein the fourth series interval is generally constructed by a large excavation method, the underlayer rock section is constructed by a full-section blasting method, and the full-well section is supported by reinforced concrete.
And (3) infiltration pipe 10: bury underground in the bed rock of riverbed bottom, be the utility model discloses a major component plays seepage flow catchment, water delivery intercommunication effect, generally uses steel bridge type strainer, and the wall thickness is not less than 8mm, and its bottom has the concrete buttress to fix. The infiltration pipe groove 2 is drilled on the original bedrock, the depth is not less than 2.5m, first coarse sand 11 which is not less than 0.4m is filled below the bottom surface of the infiltration pipe 10 to be used as a cushion layer, and the infiltration pipe 10 is protected by the first coarse sand and the cushion layer.
And (3) filter layer combination: the filter layers above the infiltration pipe 10 are sequentially composed of pebbles 12, gravels 13, second coarse sand 14, permeable geotextiles 15 and medium fine sand 16, the total thickness is not less than 2.5m, but the thickness of each layer needs to be adjusted according to the permeability of the river bed.
Lead wire cage block stone 17: in order to prevent the filter layer combination from being washed and damaged by river flood, the upper part of the filter layer is usually surrounded by a lead wire cage stone block 17, and the thickness is not less than 2 m.
The lead wire cage block stone 17 is buried under the river bed surface by 0.2m, the density of the lead wire cage grids is 8cm multiplied by 10cm, the diameter of the block stone is not less than 20cm, and the block stone is made of local materials.
The lead wire cage is selected according to the constant flow rate of the river and the width of the river bed, and if the fourth system of the river bed is thick, the particles are thick, and the river scouring is small, the lead wire cage block stones 17 are not arranged.
The invention is illustrated in further detail below with reference to examples:
the countless river in northern Shaanxi is a famous river with much silt, the fourth series of alluvial layer in the valley region of the midstream is 2-5m thick, the lithology is mainly medium fine sand 16, and the bottom is provided with a gravel layer 13.
The water is taken by adopting the modes of a riverside tube well and the like, the water taking amount of a single well is only about 10m3/d, and the water taking amount can reach 200m3/d by utilizing the seepage well water taking method of the utility model.
The specific method comprises the following steps: on the right bank of the river, 55m is spread along the flow direction of the river, a seepage pipe groove 2 is dug in bedrock at the bottom of the riverbed, the depth is 2.5m, then a seepage pipe groove 2 of 10m is distributed on the riverbed in 135-degree oblique crossing, the seepage pipe groove is connected with a vertical shaft 1, and the depth of the vertical shaft 1 is designed to be 7.0m (the vertical shaft does not contain a flood control circle of 81.5 m).
The infiltration pipe 10 (phi 377mm steel infiltration pipe) is embedded in the infiltration pipe groove 2, the thickness of the gravel 13 coated on the infiltration pipe is 3m, the thickness of coarse sand is 0.5m, the thickness of medium fine sand is 16 m, and finally the infiltration pipe is covered on the river natural wash layer 3 and is flush with the original ground.
After the building, the water is pumped and the depth is reduced by 3.5m, and the water yield reaches 200m3/d, thereby fully meeting the requirements of domestic drinking water and production water at the highway toll station in the region.
Example 2
This embodiment is for using the utility model discloses rebuild emergent water supply infiltration pipe water resource engineering after the calamity of certain county city of tributary big reason river construction of no fixed river.
The big reason river is a sediment-laden river, the infiltration pipe 10 is arranged along the water surface of the big reason river channel, the total length is designed to be 450m, the infiltration pipe 10 with the tail end of 50m is perpendicular to the river bed along the river channel of 400m, the infiltration pipe is connected with the vertical shaft 1, and the target water intake is 1200m 3/d.
And fourthly, excavating to the surface of the bedrock by adopting a large excavation mode according to the gradient of 45 degrees, wherein the excavated cross section of the bedrock is an inverted trapezoidal infiltration pipe groove 2, the width of the top of the groove is 2.5m, the width of the bottom of the groove is 1.5m, and the depth of the groove is 2.6 m. C20 concrete piers 9 are built at the bottom of the infiltration pipe groove 2 at intervals of 5m, the infiltration pipe 10 erected on the piers is a steel infiltration pipe with the wall thickness of 8mm and the diameter of 426, the gradient of the infiltration pipe is adjusted through the height of the concrete piers, and the water head difference between the upstream filtration pipe and the downstream filtration pipe is controlled. The filter material is filled in the filter layer combination above the infiltration pipe 10 according to the specification from big to small, the filter material is covered with a layer of permeable geotextile, fine sand 16 is paved on the geotextile, and then the geotextile is maintained by lead wire cage block stones 17 to the ground. The depth of a designed vertical shaft 1 is 10.1m (the height of a flood control ring is 8: 1.5m), the vertical shaft 1 is circular, the net size phi is 2.6m, C20 reinforced concrete is poured, the pouring thickness is 20cm, and single-row ribs are arranged.
After the water pumping test is completed, the water yield reaches 3000m3/d, and the problem of emergency water supply source for domestic water in county and city is effectively solved.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
It is to be understood that the present application is not limited to what has been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (10)
1. A novel seepage pipe water taking structure of a sediment-laden river is characterized by comprising a vertical shaft (1) arranged at the river side and a seepage pipe groove (2) communicated with the vertical shaft (1);
the vertical shaft (1) vertically penetrates through the river natural scouring pad layer (3) from the ground into the bedrock layer (4);
the infiltration pipe groove (2) is arranged in a river bottom bedrock layer (4);
one end of the infiltration pipe groove (2) extends into the river channel, and the other end of the infiltration pipe groove (2) is communicated with the vertical shaft (1).
2. The novel seepage pipe water taking structure for the sediment-laden river according to claim 1, wherein the bottom of the vertical shaft (1) is lower than the plane where the bottom of the seepage pipe groove (2) is located, and the part of the vertical shaft (1) lower than the bottom of the seepage pipe groove (2) is arranged into a settling well section (5) for storing sediment.
3. The novel seepage pipe water taking structure for the sediment-laden river according to claim 1, wherein a water pump (6) and a water outlet pipe (7) connected with the water pump (6) are arranged in the vertical shaft (1).
4. The novel seepage pipe water taking structure for the sediment-laden river according to claim 1, wherein a flood control ring (8) is arranged at an outlet at the upper end of the vertical shaft (1).
5. The novel seepage pipe water intake structure for the sediment-laden river according to claim 1, wherein one end of the seepage pipe groove (2) extending into the river channel is inclined from top to bottom towards the other end of the seepage pipe groove (2) communicated with the vertical shaft (1).
6. The novel seepage pipe water taking structure for the sediment-laden river according to claim 1, wherein a plurality of concrete buttresses (9) are arranged in the seepage pipe groove (2) at uniform intervals.
7. The novel seepage pipe water intake structure for the sediment-laden river as claimed in claim 6, wherein a steel seepage pipe (10) is erected on the concrete buttress (9), and the seepage pipe (10) is fixedly connected with the concrete buttress (9).
8. The new seepage pipe water intake structure of silt-laden rivers according to claim 7, characterized in that, the first grit (11) is laid below the seepage pipe (10).
9. The novel seepage pipe water intake structure of the sediment-laden river according to claim 8, wherein pebbles (12), gravels (13), second coarse sand (14), water-permeable geotextiles (15) and medium fine sand (16) are laid above the seepage pipe (10) in sequence.
10. The novel seepage pipe water intake structure for the sediment-laden river as claimed in claim 9, wherein the fine sand (16) is provided with a lead wire cage block stone (17), and the periphery and the top surface of the lead wire cage block stone (17) are backfilled with a river natural scouring layer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921787117.3U CN211472699U (en) | 2019-10-23 | 2019-10-23 | Novel seepage pipe water taking structure for sediment-rich river |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921787117.3U CN211472699U (en) | 2019-10-23 | 2019-10-23 | Novel seepage pipe water taking structure for sediment-rich river |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113073706A (en) * | 2021-04-08 | 2021-07-06 | 中国电建集团贵阳勘测设计研究院有限公司 | Submerged flow intercepting water intake structure and construction method |
| CN114307378A (en) * | 2020-09-29 | 2022-04-12 | 金祥法 | Non-full-flow filtering device and method for sand-containing water |
| CN115288699A (en) * | 2022-09-07 | 2022-11-04 | 浙江省水利水电勘测设计院有限责任公司 | An L-shaped water outlet structure for lifting water in a vertical shaft and its setting method |
-
2019
- 2019-10-23 CN CN201921787117.3U patent/CN211472699U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114307378A (en) * | 2020-09-29 | 2022-04-12 | 金祥法 | Non-full-flow filtering device and method for sand-containing water |
| CN113073706A (en) * | 2021-04-08 | 2021-07-06 | 中国电建集团贵阳勘测设计研究院有限公司 | Submerged flow intercepting water intake structure and construction method |
| CN115288699A (en) * | 2022-09-07 | 2022-11-04 | 浙江省水利水电勘测设计院有限责任公司 | An L-shaped water outlet structure for lifting water in a vertical shaft and its setting method |
| CN115288699B (en) * | 2022-09-07 | 2025-02-07 | 浙江省水利水电勘测设计院有限责任公司 | A L-shaped water diversion structure for vertical shaft water extraction and its setting method |
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