CN115637736A - Water guide and purification pipeline system for subway station in spring region stratum - Google Patents
Water guide and purification pipeline system for subway station in spring region stratum Download PDFInfo
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- CN115637736A CN115637736A CN202211247182.3A CN202211247182A CN115637736A CN 115637736 A CN115637736 A CN 115637736A CN 202211247182 A CN202211247182 A CN 202211247182A CN 115637736 A CN115637736 A CN 115637736A
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Abstract
The invention discloses a water guiding and purifying pipeline system for a subway station in a spring area stratum, which relates to the technical field of construction of a water guiding channel of the subway station.
Description
Technical Field
The invention relates to the technical field of subway station water guide channel construction, in particular to a water guide and purification pipeline system for a subway station in a spring area stratum.
Background
The geological conditions of the spring region stratum are complex, and the flow rate of underground water is high. When a subway station is built in a spring zone stratum, the problems of environmental protection and spring protection need to be comprehensively considered besides the severe problem of hydrology and geological problems.
When the station section is positioned in the spring area supply area, the ground is hardened due to the project construction of the supply area, so that the water seepage area is reduced, the infiltration amount of atmospheric precipitation is obviously reduced, and the influence on the water volume of spring water is generated; in addition, the foundation pit enclosure structure and the main structure of the underground part of the station can separate a permeable layer in the construction and operation periods, underground water seepage in the depth range of the enclosure structure and the underground station is influenced, the original runoff field of the underground water is changed greatly, the problem that the underground water is rapidly blocked up and the underground water environment of the original spring area is damaged can be caused; meanwhile, pollutants such as waste water and waste materials generated in the construction and operation process can influence the water quality in the station range and even radiate the periphery through seepage.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a water guide and purification pipeline system for a subway station in a spring area stratum, which realizes pollution-free flow guide of underground water in the spring area by replacing a plurality of multi-stage adsorption through two-stage filtration, realizes the fusion design of station spring protection drainage and a station structure on the premise of ensuring constant runoff water flow and flow direction and no pollution to water quality safety, and solves the key problems of spring water protection and engineering water prevention in construction of the subway station in the spring area stratum.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a water guide and purification pipeline system for a subway station in a spring zone comprises a plurality of water guide channels arranged at the bottom of the station, wherein each water guide channel comprises a precipitation area at the near water side and a ceramsite filling area at the drainage side; the two ends of the settling zone are respectively provided with a filter screen for blocking impurity particles, and the ceramsite filling zone is filled with ceramsite with different grades along the water flow direction for adsorbing harmful impurities.
As a further implementation mode, the pore diameter of the filter screen at one end of the precipitation zone, which is close to the water side, is larger than that of the filter screen at the other end of the precipitation zone.
As a further implementation mode, the ceramsite filling area is respectively provided with a primary water purification area, a secondary water purification area and a tertiary water purification area along the water flow direction.
As a further implementation mode, the grain sizes of the ceramsite filled in the first-stage water purification area, the second-stage water purification area and the third-stage water purification area are sequentially reduced.
As a further implementation manner, the filling material of the ceramsite filling area further comprises a cementing material, a filler and an admixture, and the cementing material, the filler and the admixture are matched with the ceramsite to form a binder.
As a further implementation mode, the high-pressure washing area comprises a plurality of high-pressure water pumps, the high-pressure water pumps are communicated with the water guide channel through a pipeline with a valve, and the arrangement direction of the high-pressure water pumps is perpendicular to the water flow direction.
As a further implementation mode, the water guide channel is of a water guide groove type structure, and a cobble layer is arranged at the bottom in the water guide channel.
As a further implementation mode, the cover plate at the top of the water chute channel is made of transparent glass, and the adjacent cover plates are connected through waterproof glue.
As a further implementation mode, the monitoring assembly comprises a camera and an osmotic pressure flow velocity sensor, and the osmotic pressure flow velocity sensor is arranged close to the bottom of the water guide channel.
As a further implementation manner, the camera head is arranged close to the top cover plate of the water guide channel.
The beneficial effects of the invention are as follows:
1. the invention realizes 'two-stage filtration and multi-stage ceramsite water purification' by arranging the settling zone and the ceramsite filling zone, wherein the two ends of the settling zone are respectively provided with the filter screen for blocking impurity particles, and the ceramsite filling zone is filled with the ceramsite with different grades along the water flow direction for adsorbing harmful impurities, thereby establishing a multi-scale water filtration system and realizing the pollution-free diversion of the underground water of the spring area. The secondary filter is promptly to the great granule stage filtration of aquatic, avoids all using the import jam that the aperture filter screen probably produced on the one hand, and on the other hand avoids with the aperture filter screen poor even the phenomenon of no effect to produce in the exit filter effect. The multistage ceramsite water purification sequentially reduces the particle size of the ceramsite, and the ceramsite is adsorbed in a grading manner, so that the optimal adsorption effect is realized. Ensuring the high-quality completion of the diversion water purification task.
2. According to the invention, the monitoring assembly is arranged, the high-definition camera is used for monitoring whether the water guide channel is blocked or choked, and the osmotic pressure flow rate sensor judges whether the water guide channel normally works or not by monitoring the flow rate of abnormal samples, such as sharp increase or sudden decrease of the flow rate. The visual transparent tempered glass matched with the top cover plate of the water guide channel realizes the visual real-time monitoring of the system, and the high-pressure flushing area ensures that the water guide channel smoothly passes through water, thereby avoiding the phenomenon of blocking and blocking water in the using process.
3. According to the invention, the cobble layer is paved at the bottom of the water guide channel of the settling zone, so that the water filtering effect can be improved, and the cleanliness of the filtered water is higher by combining the two-stage filtering of the inlet filter screen and the outlet filter screen.
4. The invention aims at the spring zone stratum, is green and environment-friendly, realizes the fusion design of the station spring-protecting drainage and the station structure on the premise of ensuring constant runoff water flow and flow direction and safe and pollution-free water quality, and solves the key problems of spring water protection, engineering water prevention and the like in the construction of subway stations in the spring zone stratum.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a schematic overall structure diagram of a water guiding and purifying pipeline system of a spring region stratum subway station in the embodiment of the invention.
FIG. 2 is a schematic view of the structure of a precipitation zone in an embodiment of the present invention.
FIG. 3 is a schematic structural diagram of a ceramsite filling area according to an embodiment of the present invention.
In the figure: the spacing or dimensions between each other are exaggerated to show the location of the various parts, and the schematic is shown only schematically.
Wherein: 1. a sedimentation zone, 2 a ceramsite filling zone, 3 a high-pressure washing zone, 4 a valve, 5 a high-pressure water pump, 6 a high-pressure water delivery pipe, 7, an inlet filter screen, 8, an outlet filter screen, 9, a first-stage water purification area, 10, a second-stage water purification area and 11, a third-stage water purification area.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
Example one
In a typical embodiment of the present invention, referring to fig. 1-3, a water guiding and purifying pipeline system for a subway station in a spring zone comprises a water guiding channel arranged at the bottom of the station, wherein the near water side of the water guiding channel is connected with a high pressure flushing area 3, and the water guiding channel comprises a settling area 1 and a ceramsite filling area 2 arranged along the water flow direction. And a monitoring assembly is arranged in the water guide channel to detect the flow velocity of water and realize the visualization of water passing.
As shown in figure 2, the settling zone 1 is arranged at the near water side of the water guide channel, and the ceramsite filling zone 2 is arranged at the drainage side of the water guide channel. The length of the water guide channel of the settling zone 1 is less than that of the ceramsite filling zone 2. The water guide channel adopts a groove-shaped water guide channel and is arranged at the bottom of the station structure, and the inlet end and the outlet end of the water guide channel are connected with the water collecting well, so that the underground water blocked by the station underground structure is transferred to the existing runoff path.
The two ends of the settling zone 1 are respectively provided with filter screens with different pore sizes to block impurity particles, and the pore size of the filter screen at one end of the settling zone close to the water side is larger than that of the filter screen at the other end of the settling zone. The cobble layer is arranged at the bottom in the water guide channel, so that the water filtering effect can be improved, and the water cleanliness after filtering is higher.
The top cover plate of the water chute channel adopts transparent reinforced glass, the cover plate can be used as a station bottom plate, and adjacent cover plates are connected through waterproof glue, so that the effects of seepage prevention and water prevention can be achieved. The groove-shaped water guide channel of the embodiment has the advantages of simple structure and larger water passing end face, and meanwhile, the top cover plate is made of transparent tempered glass, so that the visualization degree is high, and the construction management and the maintenance are facilitated.
The filter screens on two sides of the settling zone 1 are divided into an inlet filter screen 7 on the near water side and an outlet filter screen 8 on the drainage side, the inlet filter screen 7 is a plastic coarse filter screen with the aperture of 1mm, the outlet filter screen 8 is a coarse-pore nylon filter screen with the aperture of 0.1-0.5mm, the filter screens can reduce the flow rate, and larger particle impurities can be prevented from entering the ceramsite filling zone 2 through staged secondary filtration, so that the water quality is protected.
The filter screens at two ends of the settling zone 1 are fixed in the trough-shaped water guide channel through angle steels, any one edge of the filter screen, which is in contact with the pipeline, is fixed by two opposite angle steels and bolts and nuts, and the angle steels are pre-embedded in the side wall of the trough-shaped pipeline. The two-stage filtration is realized through the inlet filter screen 7 and the outlet filter screen 8, the efficiency of each filter screen is fully exerted, and the risk of filter screen blockage is reduced.
The length of settling zone 1 is specifically set according to water velocity, and along with the velocity of flow increase, the length of settling zone 1 should be corresponding extension, guarantees that the precipitation effect of rivers impurity in settling zone 1 is better. The water passing through the filtering and precipitating area 1 realizes the preliminary filtration and purification of the water quality.
As shown in fig. 1 and 3, after the secondary filtration through the outlet filter screen, the water enters the ceramsite filling area, and the water guide pipeline of the ceramsite filling area is filled with the ceramsite with different grades along the water flow direction to adsorb harmful impurities. In the embodiment, the ceramsite filling area is respectively provided with a primary water purification area 9, a secondary water purification area 10 and a tertiary water purification area 11 along the water flow direction, and a design method of three-level ceramsite water purification is adopted. The grain diameters of the ceramsite filled in the first-stage water purification area 9, the second-stage water purification area 10 and the third-stage water purification area 11 are reduced in sequence. The settling zone 1 and the ceramsite filling zone 2 realize the settling, filtering and adsorption of the underground water, thereby achieving the purpose of diversion and purification.
Specifically, the one-level water purification area 9, the second grade water purification area 10, the third grade water purification area 11 that set up along the rivers direction: the ceramsite primary water purification area 9 is made of ceramsite with the particle size of 15mm, the ceramsite secondary water purification area 10 is made of ceramsite with the particle size of 10mm, the ceramsite tertiary water purification area 11 is made of ceramsite with the particle size of 5mm, the high-adsorbability water purification ceramsite can effectively adsorb harmful impurities such as nitrogen, phosphorus and heavy metals in water, the length of each section of water purification area needs to be determined through numerical simulation according to the actual section water quantity, and a multi-scale water guide channel purification system is constructed to realize filtration of different levels.
The ceramsite of the embodiment is high-adsorbability water-purifying ceramsite, so that harmful impurities such as nitrogen, phosphorus, heavy metals and the like can be effectively adsorbed, the pollution to water quality and soil can be avoided, and the secondary purification of the water quality can be realized. Besides, the filling material of the ceramsite filling area also comprises a cementing material, a filling material and an admixture which are matched with the ceramsite to form a binding material.
Specifically, the cementing material is a modified environment-friendly cementing material, the filler is a small amount of quartz sand, and the admixture is bentonite. The materials are matched according to a certain grading proportion to form a binding material with certain strength, the compressive strength of the binding material is more than 5MPa, and the ceramsite binding body is ensured not to be dispersed under the action of water pressure. And the permeability coefficient of the ceramsite filling area is more than 0.5cm/s, so that smooth water flow is ensured.
In the diversion process of the water diversion channel, impurities such as mud and sand with small particles carried in water easily block pores among ceramic grains, and the maintenance is needed in time. Therefore, measures such as replacing the filter screen periodically, cleaning the settling zone 1, cleaning a ceramsite filling zone by adopting high-pressure water and the like are adopted for maintenance, and the high-pressure flushing zone 3 is used for cleaning the water guide channel at high pressure periodically according to the actual use condition of the pipeline.
The high-pressure washing area 3 comprises a plurality of high-pressure water pumps 5, high-pressure water delivery pipes 6 and valves 4 on each high-pressure water delivery pipe connected with the water guide pipeline, and the valves are arranged on the water near side of the water guide channel. The arrangement direction of the high-pressure water pump 5 is perpendicular to the water flow direction. The high-pressure water pumps 5 adopt constant-pressure water pumps, and the distance between every two adjacent high-pressure water pumps 5 is 30m. As shown in fig. 1, one high pressure water pump 5 of the present embodiment is connected to three water guide passages. The selected high-pressure water pump 5 ensures that the flow of the cross section is more than 30m < 3 >/h, and ensures effective cleaning. The high-pressure water pump 5 is connected with the sedimentation zone 1 through a high-pressure water delivery pipe 6 and a valve 4.
The inside monitoring subassembly that still sets up of water guide channel, the monitoring subassembly includes a plurality of high definition digtal cameras and the infiltration velocity of flow sensor that arrange along the rivers direction, and infiltration velocity of flow sensor is close to water guide channel bottom and sets up. The high-definition camera is close to the top cover plate of the water guide channel. The high-definition camera is used for monitoring whether a water guide channel is blocked or choked, and the osmotic pressure flow velocity sensor judges whether the water guide channel normally works or not by monitoring the abnormal flow velocity, such as sharp increase or sudden decrease of the flow velocity. The camera and the sensor are connected with the controller and the display, 5G is utilized to realize real-time imaging of the water guide groove and real-time imaging of the osmotic pressure flow rate of the monitoring point, and smooth flow guide and reliable water purification of the water guide channel are ensured.
The embodiment can ensure that the water guide channel smoothly passes through the water through the high-pressure flushing area, avoids the phenomenon of blocking and water blocking in the using process, and realizes the visual real-time monitoring on the water guide channel through the monitoring assembly and the high-strength transparent glass floor. Aiming at the spring zone stratum, the fusion design of station spring protection drainage and a station structure is realized on the premise of ensuring constant runoff water flow and flow direction and safe and pollution-free water quality, and the key problems of spring water protection, engineering water prevention and the like in the construction of subway stations in the spring zone stratum are solved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A water guide and purification pipeline system for a subway station in a spring zone stratum is characterized by comprising a plurality of water guide channels arranged at the bottom of the station, wherein each water guide channel comprises a precipitation area close to the water side and a ceramsite filling area at the drainage side; the two ends of the settling zone are respectively provided with a filter screen, and the ceramsite filling zone is filled with ceramsite with different grades along the water flow direction.
2. The system for guiding and purifying water in spring zone strata subway stations as claimed in claim 1, wherein the pore size of the filter screen at the end of said precipitation zone near the water side is larger than the pore size of the filter screen at the other end of said precipitation zone.
3. The water guide and purification pipeline system for the spring zone subway station as claimed in claim 1, wherein said ceramsite filling region is provided with a primary water purification region, a secondary water purification region and a tertiary water purification region along the water flow direction.
4. The water guide and purification pipeline system for the spring zone subway station as claimed in claim 3, wherein said first, second and third water purification zones are filled with ceramic particles having a decreasing particle size in sequence.
5. The system for water diversion and purification of a spring zone subway station as claimed in claim 1 or 4, wherein said filling material of said ceramsite filling area further comprises a cementing material, a filler, an admixture, and a binder formed by mixing with the ceramsite.
6. The water guide and purification pipeline system for the spring domain stratum subway station as claimed in claim 1, wherein said high pressure washing area comprises a plurality of high pressure water pumps, said high pressure water pumps are communicated with said water guide channel through a pipeline with a valve, and said high pressure water pumps are arranged in a direction perpendicular to the water flow direction.
7. The water guide and purification pipeline system for the spring domain stratum subway station as claimed in claim 1, wherein said water guide channel is of a water guide groove type structure, and a cobble layer is arranged at the bottom of the water guide groove channel.
8. The water guiding and purifying pipeline system for the spring zone stratum subway station as claimed in claim 7, wherein the top cover plate of the water guiding chute channel is made of transparent glass, and the adjacent cover plates are connected by waterproof glue.
9. The water guide and purification pipeline system for the spring domain stratum subway station as claimed in claim 7, wherein said monitoring component comprises a camera and a seepage pressure flow velocity sensor, and the seepage pressure flow velocity sensor is arranged near the bottom of the water guide channel.
10. The water guide and purification pipeline system for the spring domain stratum subway station as claimed in claim 9, wherein said camera is disposed near a top cover plate of the water guide channel.
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| CN202211247182.3A CN115637736A (en) | 2022-10-12 | 2022-10-12 | Water guide and purification pipeline system for subway station in spring region stratum |
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| CN202211247182.3A CN115637736A (en) | 2022-10-12 | 2022-10-12 | Water guide and purification pipeline system for subway station in spring region stratum |
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