CN112727542A - Underground water comprehensive utilization system for tunnel in water-rich area and use method - Google Patents
Underground water comprehensive utilization system for tunnel in water-rich area and use method Download PDFInfo
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- CN112727542A CN112727542A CN202110034414.6A CN202110034414A CN112727542A CN 112727542 A CN112727542 A CN 112727542A CN 202110034414 A CN202110034414 A CN 202110034414A CN 112727542 A CN112727542 A CN 112727542A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 229
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000000779 smoke Substances 0.000 claims abstract description 33
- 238000005086 pumping Methods 0.000 claims abstract description 26
- 238000001556 precipitation Methods 0.000 claims abstract description 22
- 238000004891 communication Methods 0.000 claims abstract 4
- 239000003673 groundwater Substances 0.000 claims description 28
- 239000000428 dust Substances 0.000 claims description 14
- 238000000746 purification Methods 0.000 claims description 12
- 150000002500 ions Chemical class 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 4
- 229910001385 heavy metal Inorganic materials 0.000 claims description 3
- 239000008213 purified water Substances 0.000 claims description 3
- 230000003628 erosive effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 20
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 230000037452 priming Effects 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
- E21F16/02—Drainage of tunnels
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
- E21F5/04—Spraying barriers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
Abstract
The invention provides a comprehensive utilization system and a use method of underground water of a tunnel in a water-rich area, and the comprehensive utilization system comprises a tunnel body, wherein one side of the tunnel body is provided with a tunnel water collecting chamber, a reservoir is arranged in the tunnel water collecting chamber, a precipitation well is arranged in the tunnel water collecting chamber, a water pumping device is arranged in the tunnel water collecting chamber, the input end of the water pumping device is communicated with and provided with a first communication pipe, the free end of the first communication pipe extends into the precipitation well and is positioned below an underground water level line in the precipitation well, a water supply self-sucking pump is arranged on the water supply pipe, and a control valve is arranged on the water supply self-sucking pump. The tunnel engineering structure is not damaged by water pressure, so that the safety of the engineering structure is ensured, and the service life of the tunnel is prolonged; the control of the smoke concentration in the tunnel is realized, the water burst in the tunnel is eliminated, the safety of tunnel construction operators is ensured, and the construction operation efficiency is improved; the fire rescue efficiency is improved, and the safety of tunnel operation is improved.
Description
Technical Field
The invention belongs to the field of high-speed railway tunnel engineering, and particularly relates to a comprehensive utilization system of underground water of a tunnel in a water-rich area and a using method thereof.
Background
In all underground building structures, the influence and harm of underground water on the underground building structures are not negligible. In the process of tunnel excavation in a water-rich area, the sudden water gushing tunnel section of the tunnel face is in a construction stage, so that the potential safety hazards of constructors and equipment exist, the excavated tunnel face is easily influenced by underground water, the drilling, charging, slag discharging and blasting efficiencies are greatly reduced during tunnel excavation, and the operation difficulty and the construction operation danger are increased; on the other hand, in the operation state of the built tunnel, the underground water pressure is taken as the primary influence factor of the durability of the tunnel lining structure, enough attention should be paid to the underground water pressure, the buoyancy of the underground water greatly threatens the safety of the tunnel structure, and the safety and the service life of the tunnel are seriously influenced. In addition, when the volume of gushing water is great in the tunnel, water flows out the hole through the tunnel face, and groundwater becomes the sewage that mix with the mixture, is not conform to the environmental protection emission requirement, and later stage sewage purification is with high costs, the process is loaded down with trivial details.
Because the tunnel structure is relatively closed, air in the tunnel is not easy to diffuse. The dust emission problem in the tunnel construction process is very prominent, which not only seriously affects the environment, but also is not beneficial to the health of operators, so that practical and effective dust removal means must be adopted. The dust removal method adopted at present discharges dust from the palm surface to the outside of the hole through the jet fan, so that the cost is high, and the efficiency is low, so that a simple and efficient dust removal method is imperative.
Based on the above aspects, a method for comprehensively utilizing the underground water of the tunnel in the water-rich area is urgently needed to eliminate the influence of the underground water on the tunnel construction and operation, and simultaneously, the collected underground water is reused for removing dust in the tunnel. The safety of the tunnel structure is guaranteed, the service life of the tunnel structure is prolonged, the tunnel construction operation environment is improved, the construction cost is saved, and the method has great significance for the development of railway traffic in China.
Disclosure of Invention
The invention aims to provide a comprehensive utilization system and a use method of underground water of a tunnel in a water-rich area, particularly to solve the problem that the underground water affects the construction conditions and the structural safety of the tunnel, realize the purposes of cleaning, distributing and recycling water in the tunnel and reducing dust in the tunnel.
In order to solve the technical problems, the invention adopts the technical scheme that: a comprehensive utilization system of underground water in a tunnel in a water-rich area and a using method thereof are provided, the comprehensive utilization system comprises a tunnel body, a tunnel water collecting chamber is arranged at one side of the tunnel body, a reservoir is arranged in the tunnel water collecting chamber, a precipitation well is arranged in the tunnel water collecting chamber, a water pumping device is arranged in the tunnel water collecting chamber, the input end of the water pumping device is communicated and provided with a first communicating pipe, the free end of the first communicating pipe extends into the precipitation well and is positioned below an underground water level line in the precipitation well, a water inlet is arranged at one side of the reservoir, a first connecting pipe is communicated and installed on the water inlet and is communicated and connected with the output end of the water pumping device, a water level control valve is arranged on the water pumping device, a water outlet is arranged at the upper bottom of the side wall of the reservoir, a second communicating pipe is communicated, a water supply pipe is installed in first purifier's output intercommunication, it is originally internal that water supply pipe sets up subaerial and extends to the tunnel from tunnel catchment cavern, it is provided with the leading water pipe to lie in tunnel body lateral wall top intercommunication on the leading water pipe along the inboard waist of encircleing of tunnel body and vault, it is provided with rotatory nozzle to lie in tunnel body lateral wall top intercommunication on the leading water pipe, a plurality of smoke and dust sensors are installed to inboard top equidistance of tunnel body, be provided with a water supply self priming pump on the water supply pipe, it is provided with a control valve to be provided with one on the water supply.
Furthermore, a second connecting pipe is communicated with the upper portion of one side wall of the water storage tank, a second purifying device is communicated with the free end of the second connecting pipe, a water discharging pipe is communicated with the output end of the second purifying device, and the water discharging pipe is arranged on the ground and extends into the tunnel body from the tunnel water collecting chamber.
Furthermore, a groundwater level control valve is arranged on the groundwater level line in the precipitation well, and the water pumping device is electrically connected with the groundwater level control valve in the precipitation well.
Furthermore, an infrared indicator lamp is arranged on one side of each rotary spray head, and each infrared indicator lamp is electrically connected with the control valve.
Furthermore, a filter screen is arranged in the pipeline of the water outlet.
Further, tunnel body bottom edge is provided with the cable duct, is located this internal drain pipe of tunnel and water supply pipe setting in the cable duct of tunnel body bottom.
The using method comprises the following steps:
1) setting a ground water level control valve in the precipitation well, and starting a pumping device to pump the ground water in the precipitation well into a water storage pool when the ground water level in the precipitation well is higher than the water level controlled by the ground water level control valve; when the underground water level is lower than the water level controlled by the underground water level control valve, the water pumping device is automatically closed, so that the underground water of the tunnel is ensured to be below the safe water level, and the construction and the structural safety of the tunnel are not influenced;
2) after the underground water in the water storage tank is stood still, sand stones in the underground water are deposited at the bottom of the water storage tank, the initial purification of the underground water is realized, sand taking operation is required to be carried out on the water storage tank at intervals, then the underground water in the water storage tank is purified by the second purification device for corrosive ions and heavy metal pollution ions in the underground water, so that the environmental protection requirement that water flows out of a water discharge hole and enters a river and the use requirement when the tunnel is used for dust fall are met, the underground water is discharged out of the tunnel body through the water discharge pipe, meanwhile, the corrosion damage of the corrosive ions to the whole set of device is reduced, and the; in the process of discharging water in the reservoir, filtering and intercepting particles and sand in the water in the reservoir by using a filter screen to realize the purification of solid particles of the water;
3) the water supply pipeline is connected with the first purification device, purified water in the water storage tank is led out, the water supply pipeline is arranged on one side of the side wall in the section of the tunnel body, and the water supply pipeline is moved into the cable groove after the cable groove is arranged; a water supply self-sucking pump is arranged on a pipe section part of a tunnel water collecting cavity part to provide power for dust fall water, smoke sensors are arranged at the vault position of a tunnel at intervals along the longitudinal direction of a tunnel body and monitor the smoke concentration in the tunnel body, when the smoke concentration in the tunnel body exceeds a highest threshold value, the corresponding smoke sensors transmit smoke concentration change signals to a control valve, and the water supply self-sucking pump is started; when the smoke concentration is lower than the minimum threshold value, the corresponding smoke sensor transmits a smoke concentration change signal to the control valve, and the water supply self-sucking pump is closed; when the water supply self-sucking pump is started, the infrared indicating lamp is turned on; when the water supply self-priming pump is closed, the infrared indicating lamp is extinguished, and before water is sprayed in the tunnel for dust fall, construction workers are reminded to avoid the water so as to prevent the construction workers from being wetted.
The invention has the advantages and positive effects that: by adopting the technical scheme, the adverse effect of underground water on tunnel construction and the adverse effect on the safety of a tunnel lining structure are pertinently solved, the construction efficiency is improved, the tunnel engineering structure is prevented from being damaged by water pressure, the safety of the engineering structure is ensured, and the service life of the tunnel is prolonged; the control of the smoke concentration in the tunnel is realized, the water burst in the tunnel is eliminated, the safety of tunnel construction operators is ensured, and the construction operation efficiency is improved; the water storage tank and the water pumping device which are arranged in the water collecting special comprehensive cavern inside the tunnel are excellent devices for fire fighting and extinguishing of the tunnel in the tunnel operation process, so that the fire fighting and rescue efficiency is improved, and the safety of tunnel operation is improved; the water in the tunnel is cleaned and separated, and the water which is not polluted by the tunnel construction is directly discharged out of the tunnel, so that the problem of tunnel water purification in water-rich areas is solved, and the environment-friendly requirement of tunnel water discharge is met; the invention has simple structure of parts, low cost, long-term use, wide application prospect and obvious economic benefit.
Drawings
FIG. 1 is a schematic structural view of the present invention in a cross-sectional portion of a tunnel;
FIG. 2 is a schematic view of the internal structure of the tunnel catchment cavern of the present invention;
fig. 3 is a partial structural view of a water reservoir part of the present invention.
In the figure:
1. tunnel body 2, tunnel water-collecting chamber 3 and drain pipe
4. Water supply pipeline 5, water conduit 6, rotary nozzle
7. Smoke sensor 8, infrared indicating lamp 9 and water storage tank
10. Dewatering well 11, water pumping device 12 and first communicating pipe
13. First connecting pipe 14, water inlet 15 and water level control valve
16. First purifier 17, second purifier 18, water supply self priming pump
19. Control valve 20, second connecting pipe 21, second communicating pipe
22. Water outlet
Detailed Description
As shown in figures 1-3, the invention is a comprehensive utilization system of underground water in a tunnel in a water-rich area and a using method thereof, comprising a tunnel body 1, a tunnel water-collecting chamber 2 is arranged at one side of the tunnel body 1, a reservoir 9 is arranged in the tunnel water-collecting chamber 2, a precipitation well 10 is arranged in the tunnel water-collecting chamber 2, a water-pumping device 11 is arranged in the tunnel water-collecting chamber 2, the input end of the water-pumping device 11 is communicated with a first connecting pipe 12, the free end of the first connecting pipe 12 extends into the precipitation well 10 and is positioned below the underground water level line in the precipitation well 10, a water inlet 14 is arranged at one side of the reservoir 9, a first connecting pipe 13 is arranged on the water inlet 14, the first connecting pipe 13 is communicated with the output end of the water-pumping device 11, a water level control valve 15 is arranged on the water-pumping device 11, a water outlet 22, a second communicating pipe 21 is installed in the intercommunication on the delivery port 22, first purifier 16 is installed in the intercommunication of second communicating pipe 21 free end, a water supply pipe 4 is installed in the output intercommunication of first purifier 16, water supply pipe 4 sets up subaerial and extends to tunnel body 1 from tunnel catchment cavern 2, it is provided with leading water pipe 5 to follow the waist and the vault of 1 inboard in tunnel body on the water supply pipe 4, it is provided with rotatory nozzle 6 to lie in tunnel body 1 lateral wall top intercommunication on leading water pipe 5, a plurality of smoke sensor 7 are installed to 1 inboard top equidistance in tunnel body, be provided with a water supply self priming pump 18 on the water supply pipe 4, it is provided with a control valve 19 to be provided with one on the water supply self priming pump 18, smoke sensor 7 is connected with control valve 19 electricity.
Further, a second connecting pipe 20 is communicated with the upper portion of one side wall of the water storage tank 9, a second purifying device 17 is communicated with the free end of the second connecting pipe 20, a water discharging pipe 3 is communicated with the output end of the second purifying device 17, and the water discharging pipe 3 is arranged on the ground and extends into the tunnel body 1 from the tunnel water collecting chamber 2.
Furthermore, a ground water level control valve is arranged on a ground water level line in the precipitation well 10, and the pumping device 11 is electrically connected with the ground water level control valve in the precipitation well 10.
Furthermore, an infrared indicator light 8 is arranged on one side of each rotary spray head 6, and each infrared indicator light 8 is electrically connected with the control valve 19.
Further, a filter screen is arranged in the pipeline of the water outlet 22.
Further, 1 bottom edge in tunnel body is provided with the cable duct, and the drain pipe 3 and the water supply pipe 4 that are located tunnel body 1 set up in the cable duct of 1 bottom in tunnel body.
The using method comprises the following steps:
1) setting a ground water level control valve in the precipitation well 10, starting the pumping device 11 when the ground water level in the precipitation well 10 is higher than the water level controlled by the ground water level control valve, and pumping the ground water in the precipitation well 10 into the reservoir 9; when the underground water level is lower than the water level controlled by the underground water level control valve, the water pumping device 11 is automatically closed, so that the underground water of the tunnel is ensured to be below the safe water level;
2) after standing, the underground water in the reservoir 9 is deposited at the bottom of the reservoir 9 to realize the initial purification of the underground water, the reservoir 9 needs to be subjected to sand fetching operation at intervals, and then the underground water in the reservoir 9 is discharged out of the tunnel body 1 through the drain pipe 3 after being purified by corrosive ions and heavy metal pollution ions in the underground water through the second purification device 17;
3) the water supply pipeline 4 is connected with the first purification device 16, purified water in the reservoir 9 is led out, the water supply pipeline 4 is arranged on one side of a side wall in the section of the tunnel body 1, and the water supply pipeline 4 is moved into a cable groove after the cable groove is arranged; a water supply self-sucking pump 18 is installed at a pipe section part of the tunnel water collecting cavity 2 to provide power for dust fall water, the smoke sensors 7 are arranged at the vault position of the tunnel at intervals along the longitudinal direction of the tunnel body 1 and monitor the smoke concentration in the tunnel body 1, when the smoke concentration in the tunnel body 1 exceeds the highest threshold value, the corresponding smoke sensors 7 transmit smoke concentration change signals to a control valve 19, and the water supply self-sucking pump 18 is started; when the smoke concentration is lower than the minimum threshold value, the corresponding smoke sensor 7 transmits a smoke concentration change signal to the control valve 19, and the water supply self-sucking pump 18 is closed; and when the water supply self-priming pump 18 is started, the infrared indicator light 8 is turned on; when the water supply self-priming pump 18 is turned off, the infrared indicator light 8 is extinguished.
In the using process, the invention not only operates during tunnel construction operation, can achieve the purposes of reducing the concentration of dust generated during tunnel blasting, slag discharging, guniting and other construction operations, reducing the water pressure around the tunnel structure, ensuring the safety of the tunnel structure, realizing the effect of sewage disposal and diversion during tunnel construction, meeting the requirement of environmental protection, reducing the cost of sewage treatment and realizing the maximization of benefit.
And also play an important role in the aspect of fire fighting and rescue in the operation tunnel: after a tunnel fire occurs, the invention can effectively reduce smoke generated by the tunnel fire, provides necessary safe escape time for escape personnel and rescue personnel, effectively improves the escape and rescue efficiency of the tunnel fire, provides a close-range water source for extinguishing the tunnel fire by using underground water collected in the reservoir 9 special for tunnel water collection, and improves the fire extinguishing efficiency.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (7)
1. The utility model provides a groundwater comprehensive utilization system in rich water area tunnel, includes tunnel body (1), its characterized in that: the tunnel water collecting tunnel is characterized in that a tunnel water collecting chamber (2) is arranged on one side of the tunnel body (1), a water storage tank (9) is arranged in the tunnel water collecting chamber (2), a precipitation well (10) is arranged in the tunnel water collecting chamber (2), a water pumping device (11) is arranged in the tunnel water collecting chamber (2), a first communication pipe (12) is arranged in the input end of the water pumping device (11) in a communicated mode, the free end of the first communication pipe (12) stretches into the precipitation well (10) and is located below an underground water level line in the precipitation well (10), a water inlet (14) is arranged on one side of the water storage tank (9), a first connection pipe (13) is arranged on the water inlet (14) in a communicated mode, the first connection pipe (13) is connected with the output end of the water pumping device (11) in a communicated mode, and a water level control valve (15) is arranged on the water pumping device (, a water outlet (22) is formed in the bottom of the side wall of the water storage tank (9), a second communicating pipe (21) is communicated and installed on the water outlet (22), a first purifying device (16) is communicated and installed at the free end of the second communicating pipe (21), a water supply pipeline (4) is communicated and installed at the output end of the first purifying device (16), the water supply pipeline (4) is arranged on the ground and extends into the tunnel body (1) from the tunnel water collecting chamber (2), a water guide pipe (5) is arranged on the water supply pipeline (4) along the arch waist and the arch crown of the inner side of the tunnel body (1), a rotary spray head (6) is communicated and arranged at the top of the side wall of the tunnel body (1) on the water guide pipe (5), a plurality of smoke sensors (7) are installed at the top of the inner side of the tunnel body (1) at equal intervals, a self-sucking pump (18) is arranged on the, the water supply self-sucking pump (18) is provided with a control valve (19), and the smoke sensor (7) is electrically connected with the control valve (19).
2. A groundwater comprehensive utilization system of a tunnel in a water-rich area according to claim 1, wherein: cistern (9) a lateral wall upper portion intercommunication is provided with a second connecting pipe (20), a second purifier (17) is installed in the free end intercommunication of second connecting pipe (20), a drain pipe (3) is installed in the output intercommunication of second purifier (17), drain pipe (3) set up subaerial and follow tunnel catchment cavern (2) extend to in the tunnel body (1).
3. A groundwater comprehensive utilization system of a tunnel in a water-rich area according to claim 1, wherein: and a ground water level control valve is arranged on a ground water level line in the dewatering well (10), and the pumping device (11) is electrically connected with the ground water level control valve in the dewatering well (10).
4. A groundwater comprehensive utilization system of a tunnel in a water-rich area according to claim 1, wherein: and an infrared indicator lamp (8) is arranged on one side of each rotary spray head (6), and each infrared indicator lamp (8) is electrically connected with the control valve (19).
5. A groundwater comprehensive utilization system of a tunnel in a water-rich area according to claim 1, wherein: a filter screen is arranged in the pipeline of the water outlet (22).
6. A groundwater comprehensive utilization system of a tunnel in a water-rich area according to claim 2, wherein: the tunnel body (1) bottom edge is provided with the cable duct, is located in the tunnel body (1) drain pipe (3) with water supply pipe (4) set up in the cable duct of tunnel body (1) bottom.
7. A use method of a comprehensive utilization system of underground water of a tunnel in a water-rich area is characterized by comprising the following steps: the method comprises the following steps:
1) arranging a ground water level control valve in the dewatering well (10), and starting a pumping device (11) to pump the ground water in the dewatering well (10) into a reservoir (9) when the ground water level in the dewatering well (10) is higher than the water level controlled by the ground water level control valve; when the underground water level is lower than the water level controlled by the underground water level control valve, the water pumping device (11) is automatically closed, so that the underground water of the tunnel is ensured to be below the safe water level;
2) after standing still, the underground water in the reservoir (9) is deposited at the bottom of the reservoir (9), so that the initial purification of the underground water is realized, sand fetching operation needs to be carried out on the reservoir (9) at intervals, and then the underground water in the reservoir (9) is discharged out of the tunnel body (1) through the drain pipe (3) after being purified by erosive ions and heavy metal pollution ions in the underground water through the second purification device (17);
3) the water supply pipeline (4) is connected with a first purification device (16), purified water in the reservoir (9) is led out, the water supply pipeline is arranged on one side of a side wall in the section of the tunnel body (1), and the water supply pipeline (4) is moved into a cable groove after the cable groove is drilled; the water supply self-sucking pump (18) is installed on a pipe section part of the tunnel water collection chamber (2) to provide power for dust fall water, the smoke sensors (7) are arranged at the position of the vault of the tunnel at intervals along the longitudinal direction of the tunnel body (1), the smoke concentration in the tunnel body (1) is monitored, and when the smoke concentration in the tunnel body (1) exceeds the highest threshold value, the corresponding smoke sensors (7) transmit smoke concentration change signals to the control valve (19) to open the water supply self-sucking pump (18); when the smoke concentration is lower than the minimum threshold value, the corresponding smoke sensor (7) transmits a smoke concentration change signal to the control valve (19), and the water supply self-sucking pump (18) is closed; when the water supply self-priming pump (18) is started, an infrared indicator lamp (8) is turned on; and when the water supply self-sucking pump (18) is turned off, the infrared indicator lamp (8) is turned off.
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| CN202110034414.6A CN112727542A (en) | 2021-01-12 | 2021-01-12 | Underground water comprehensive utilization system for tunnel in water-rich area and use method |
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| CN202110034414.6A CN112727542A (en) | 2021-01-12 | 2021-01-12 | Underground water comprehensive utilization system for tunnel in water-rich area and use method |
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