CN112267547B - Slope siphon drainage system and method for hydraulic engineering - Google Patents
Slope siphon drainage system and method for hydraulic engineering Download PDFInfo
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- CN112267547B CN112267547B CN202011197394.6A CN202011197394A CN112267547B CN 112267547 B CN112267547 B CN 112267547B CN 202011197394 A CN202011197394 A CN 202011197394A CN 112267547 B CN112267547 B CN 112267547B
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/20—Siphon pipes or inverted siphons
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/08—Siphons
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Abstract
The invention discloses a slope siphon drainage system and method for hydraulic engineering, comprising a siphon and a water tank, wherein one end of the siphon is extended to the position below the underground water level of a slope, the other end of the siphon is communicated with the water tank and is extended to the lower part of the water tank, the water tank is arranged at the bottom of the slope surface of the slope, the bottom of the water tank is provided with a drainage pipe, and the drainage pipe is provided with a valve A; an air inlet pipe extending upwards is arranged at the top of the water tank, and a valve B with adjustable opening degree is arranged on the air inlet pipe; the water tank top still is provided with the siphon drain pipe, the siphon drain pipe is gone deep into the water tank lower part from the water tank top, the siphon drain pipe is provided with a section of U-shaped pipe after upwards stretching out from the water tank top to the tail end of U-shaped pipe continues downwardly extending and forms the drainage end.
Description
Technical Field
The invention relates to hydraulic engineering, in particular to a system and a method for slope drainage for hydraulic engineering.
Background
In a slope siphon drainage system, the number of siphons is large, and often hundreds to thousands of siphons are used, so that the efficiency is low if the siphons are started by using a vacuum pump, a high-pressure pump and the like, and more construction cost and material cost are required.
Chinese patent CN108560693B discloses a device and a method for starting a slope siphon drainage system, and specifically discloses: the utility model provides a side slope siphon drainage system starting drive, side slope siphon drainage system arranges the siphon in the drilling including drilling and the water inlet that is located the side slope in, this starting drive includes the water tank, blast pipe and drain pipe, sealed water tank is arranged in to the delivery port of siphon, the access connection of blast pipe is at the water tank top, the side slope lower part is arranged in to the export of blast pipe, the side slope lower part is arranged in to the export of drain pipe, the vertical distance of drilling drill way mouth to drilling bottom is greater than the water column height that local atmospheric pressure corresponds, the vertical distance that the blast pipe was imported to the blast pipe export is greater than the water column height that local atmospheric pressure corresponds, the vertical distance that the drain pipe was imported to the drain pipe export is greater than the water column height that local atmospheric pressure corresponds, the difference in height between water tank top and the drilling hole mouth is greater than the water column height that local atmospheric pressure corresponds. And a valve is arranged at the outlet of the water discharge pipe. In the above patent, a valve is provided in the drain pipe, and a negative pressure is generated by opening and closing the valve in the drain pipe to start the siphon.
However, even in the case of the first start, that is, in the case where air exists in the siphon tube, water should be poured in the reverse direction from the drain tube to remove the air in the siphon tube, so that the first siphon drain can be performed. And because the domatic siphon drainage system generally speaking raises the dirt height, water pump power reinforce.
Disclosure of Invention
The invention aims to provide a self-starting slope siphon drainage system and a method for hydraulic engineering.
In order to achieve the above object, the present invention is configured such that: the utility model provides a slope siphon drainage system for hydraulic engineering, includes siphon and water tank, siphon one end is deepened under the slope ground water level, and the other end communicates with the water tank and deepens the water tank lower part, the water tank sets up the domatic bottom of side slope, its characterized in that: a drain pipe is arranged at the bottom of the water tank, and a valve A is arranged on the drain pipe; an air inlet pipe extending upwards is arranged at the top of the water tank, and a valve B with adjustable opening degree is arranged on the air inlet pipe; the top of the water tank is also provided with a siphon drain pipe, the siphon drain pipe extends from the top of the water tank to the lower part of the water tank, a section of U-shaped pipe is arranged after the siphon drain pipe extends upwards from the top of the water tank, the tail end of the U-shaped pipe continues to extend downwards to form a drain end, the bottom of the U-shaped pipe of the siphon drain pipe is flush with the lower surface of the water tank, and the highest position of the siphon drain pipe is flush with the air inlet pipe; the inner diameter of one side of the U-shaped pipe close to the water tank end is smaller than that of one side of the other side of the water tank end, a steel ball is placed in an inner cavity of the bottom of the U-shaped pipe of the siphon drain pipe, and the diameter of the steel ball is slightly larger than the minimum diameter of the transverse part of the bottom of the U-shaped pipe.
The upper end of the U-shaped pipe of the siphon drain pipe, which is far away from one side of the water tank, is lower than the upper end of the U-shaped pipe, which is close to one side of the water tank.
Preferably, the height of the upper end of the U-shaped pipe of the siphon drain pipe, which is far away from one side of the water tank, reaches the middle part of the water tank.
Further, the volume of the siphon tube is less than 1/200 of the volume of the water tank.
Preferably, the cross-sectional inner diameter of the drain pipe is 4-5mm, and the inner diameter of the siphon pipe is 0.5-1.5 mm.
Further, the same water tank can be connected with less than 100 siphon pipes.
In addition, this embodiment also provides a self-starting side slope siphon drainage method, and the side slope siphon drainage system for hydraulic engineering that uses above includes the following steps:
step (I): drilling a hole on the side slope, wherein the depth and the angle of the drilled hole are determined according to the underground water level line of the side slope, and the hole is ensured to extend below the underground water level line;
step (II): installing a siphon drainage system, closing a valve A on a drainage pipe, then injecting water into a box body through an air inlet pipe, adjusting a valve B on the air inlet pipe after the water tank is filled, so that the opening degree of the valve B of the air inlet pipe is smaller than the section opening of a siphon pipe, realizing siphon of water in the water tank through a siphon drainage pipe at the moment, and discharging the water in the water tank into a water pool or a water storage lake through the siphon drainage pipe under the action of pressure;
step (three): step (two) is executed until the underground water in the side slope is introduced into the water tank under the action of pressure to realize siphon, at the moment, the valve B of the air inlet is closed, and the valve A of the water drainage pipe is opened;
step (IV): until the underground water in the side slope is sucked out to the siphon pipe extending position, and the water in the water tank is discharged through the drain pipe and the siphon drain pipe, the water in the water tank or the water storage lake can be prevented by the steel ball even if the water in the water tank or the water storage lake flows backwards due to the existence of the steel ball.
Has the advantages that:
the slope siphon drainage system and the method for the hydraulic engineering provided by the invention have the advantages that the siphon phenomenon is formed in advance by filling water into the water tank through the air inlet, and the water in the water tank is drained into the reservoir. And because the water in the water tank reduces the pressure in the water tank and further reduces and make the groundwater in the side slope flow into the water tank through the siphon under the effect of pressure during, and the gas that originally in the siphon enters into the water tank among the back is got rid of by intake pipe department. When the siphon pipe starts to work and drain water, the valve at the air inlet pipe can be closed. In this way, the self-starting of the drainage system is realized. Maintaining a lower pressure in the siphon, tank, drain, siphon drain. After the underground water on the side slope is drained, the water in the reservoir can flow back under the action of pressure and flow back to the bottom of the U-shaped pipe, and the steel ball is pushed to be clamped into the position with the small inner diameter at the bottom of the U-shaped pipe, so that the water is prevented from flowing back into the water tank.
In addition, when the flaw-piece groundwater further rises, the groundwater enters the water tank again through the siphon under the action of pressure, and water in the water tank can flow out through the drain pipe and the drainage siphon, and can push the steel ball to roll towards the large inner diameter part of the pipeline through the drainage siphon, so that drainage is realized. Therefore, the intermittent drainage of the side slope underground water can be realized.
By adopting the slope siphon drainage system and method for hydraulic engineering, the drainage self-starting can be realized, and a power system of a high-power water pump is not required to be prepared. The structure of the invention is reliable, the water backflow can be prevented, and the safety performance is high. The drainage mode is suitable for long flows during slope clearance.
Drawings
Fig. 1 is a schematic structural diagram of a slope siphon drainage system for hydraulic engineering in an embodiment.
Description of reference numerals: 1 side slope, 2 drilling holes, 3 siphon pipes, 4 water tanks, 5 water discharge pipes, 6 valve A, 7 air inlet pipes, 8 valve B, 9 siphon water discharge pipes, 10U-shaped pipes, 11 steel balls, 12 water level lines and 13 water pools.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings, but the present invention is not limited to these embodiments, and any modifications or substitutions in the basic spirit of the embodiments will still fall within the scope of the present invention as claimed in the claims.
Example 1: as shown in fig. 1, this embodiment provides a slope siphon drainage system for hydraulic engineering, first, a hole 2 is drilled on a slope 1, the depth and angle of the hole are determined according to a bottom water line 12 in a slope body, the slope siphon drainage system for hydraulic engineering includes a siphon 3 and a water tank 4, the water tank is disposed at the bottom of the slope, and one end of the siphon is communicated with the water tank and the other end extends into the drilled hole of the slope. The bottom of the water tank is provided with a drain pipe 5, and the drain pipe is provided with a valve A6; an air inlet pipe 7 extending upwards is arranged at the top of the water tank, and a valve B8 with adjustable opening degree is arranged on the air inlet pipe; the water tank top still is provided with siphon drain pipe 9, siphon drain pipe is gone deep into the water tank lower part by the water tank top, siphon drain pipe is provided with one section U-shaped pipe 10 after upwards stretching out by the water tank top to the tail end of U-shaped pipe continues downwardly extending and forms the drainage end of exhausting, and the bottom of the U-shaped pipe of siphon drain pipe flushes with the water tank low level, the highest position of siphon drain pipe with the intake pipe flushes. The inner diameter of the pipeline at the bottom transverse part of the U-shaped pipe, which is close to one side of the water tank end, is smaller than the diameter of one side of the original water tank end, and the steel ball 11 is arranged at the bottom of the inner cavity of the U-shaped pipe of the siphon drain pipe, and the diameter of the steel ball is slightly larger than the minimum diameter of the bottom of the U-shaped pipe.
In this embodiment, the siphon has a volume of 1/200, 1/250, 1/500 or 1/1000 of the tank volume.
As one of the implementation manners in the embodiment, the cross-sectional inner diameter of the drain pipe is 4-5mm, and K can be selected from, but is not limited to, 4mm, 4.5mm or 5 mm. The number of the drainage pipes can be 1, 2, 3, 4 or 5. The inner diameter of the siphon is 0.5-1.5mm, and can be selected from but not limited to 0.5mm, 1mm and 1.5 mm. The same water tank can be connected with less than 100 siphon pipes. The water tank of the siphon drainage system in the embodiment is simultaneously connected with 100 siphon pipes.
The embodiment also provides a side slope siphon drainage method, and the drainage system adopting the embodiment comprises the following steps:
step (I): drilling a hole on the side slope, wherein the depth and the angle of the drilled hole are determined according to the underground water level line of the side slope, and the hole is ensured to extend below the underground water level line;
step (II): the siphon drainage system of the embodiment is well installed, the valve A on the drainage pipe is closed, then water is injected into the box body through the air inlet pipe, the valve B on the air inlet pipe is adjusted until the water tank is full, the opening degree of the valve B of the air inlet pipe is smaller than the section opening of the siphon pipe, at the moment, the water in the water tank is siphoned through the siphon drainage pipe, and the water in the water tank is drained into the water tank 13 or the water storage lake through the siphon drainage pipe under the action of pressure;
step (three): step (two) is executed until the underground water in the side slope is introduced into the water tank under the action of pressure to realize siphon, at the moment, the valve B of the air inlet is closed, and the valve A of the water drainage pipe is opened;
step (IV): until the underground water in the side slope is sucked out to the siphon pipe extending position, and the water in the water tank is discharged through the drain pipe and the siphon drain pipe, the water in the water tank or the water storage lake can be prevented by the steel ball even if the water in the water tank or the water storage lake flows backwards due to the existence of the steel ball.
According to the slope siphon drainage system and method for hydraulic engineering, water is filled into the water tank through the air inlet to achieve the siphon phenomenon of the siphon drainage pipe, and water in the water tank is drained into the water storage tank. And because the water in the water tank reduces the pressure in the water tank and further reduces and make the groundwater in the side slope flow into the water tank through the siphon under the effect of pressure during, and the gas that originally in the siphon enters into the water tank among the back is got rid of by intake pipe department. When the siphon pipe starts to work and drain water, the valve at the air inlet pipe can be closed. In this way, the self-starting of the drainage system is realized. Maintaining a lower pressure in the siphon, tank, drain, siphon drain. After the underground water on the side slope is drained, the water in the reservoir can flow back under the action of pressure and flow back to the bottom of the U-shaped pipe, and the steel ball is pushed to be clamped into the position with the small inner diameter at the bottom of the U-shaped pipe, so that the water is prevented from flowing back into the water tank.
In addition, when the flaw-piece groundwater further rises, the groundwater enters the water tank again through the siphon under the action of pressure, and water in the water tank can flow out through the drain pipe and the drainage siphon, and can push the steel ball to roll towards the large inner diameter part of the pipeline through the drainage siphon, so that drainage is realized. Therefore, the intermittent drainage of the side slope underground water can be realized.
By adopting the slope siphon drainage system and method for hydraulic engineering, self-starting of drainage can be realized, and a power system of a high-power water pump does not need to be prepared. The structure of the invention is reliable, the water backflow can be prevented, and the safety performance is high. The drainage mode is suitable for long flows during slope clearance.
Example 2: as shown in fig. 1, this embodiment provides a slope siphon drainage system for hydraulic engineering, first, a hole 2 is drilled on a slope 1, the depth and angle of the hole are determined according to a bottom water line 12 in a slope body, the slope siphon drainage system for hydraulic engineering includes a siphon 3 and a water tank 4, the water tank is disposed at the bottom of the slope, and one end of the siphon is communicated with the water tank and the other end extends into the drilled hole of the slope. The bottom of the water tank is provided with a drain pipe 5, and the drain pipe is provided with a valve A6; an air inlet pipe 7 extending upwards is arranged at the top of the water tank, and a valve B8 with adjustable opening degree is arranged on the air inlet pipe; the water tank top still is provided with siphon drain pipe 9, siphon drain pipe is gone deep into the water tank lower part by the water tank top, siphon drain pipe is provided with one section U-shaped pipe 10 after upwards stretching out by the water tank top to the tail end of U-shaped pipe continues downwardly extending and forms the drainage end of exhausting, and the bottom of the U-shaped pipe of siphon drain pipe flushes with the water tank low level, the highest position of siphon drain pipe with the intake pipe flushes. The inner diameter of the pipeline at the bottom transverse part of the U-shaped pipe, which is close to one side of the water tank end, is smaller than the diameter of one side of the original water tank end, and the steel ball 11 is arranged at the bottom of the inner cavity of the U-shaped pipe of the siphon drain pipe, and the diameter of the steel ball is slightly larger than the minimum diameter of the bottom of the U-shaped pipe.
In one embodiment of this embodiment, the upper end of the U-shaped tube on the side away from the water tank is lower than the upper end of the U-shaped tube on the side close to the water tank.
In this embodiment, the height of the upper end of the U-shaped pipe of the siphon drain pipe on the side away from the water tank reaches the middle of the water tank.
In this embodiment, the volume of the siphon is 1/500 of the tank volume.
As one of the implementation modes in the embodiment, the cross-section inner diameter of the drain pipe is 5 mm. The number of the drainage pipes can be 4. The inner diameter of the siphon is 1 mm. 200 siphon pipes are simultaneously connected to the water tank of the siphon drainage system in the embodiment.
The embodiment also provides a side slope siphon drainage method, and the drainage system adopting the embodiment comprises the following steps:
step (I): drilling a hole on the side slope, wherein the depth and the angle of the drilled hole are determined according to the underground water level line of the side slope, and the hole is ensured to extend below the underground water level line;
step (II): the siphon drainage system of the embodiment is well installed, the valve A on the drainage pipe is closed, then water is injected into the box body through the air inlet pipe, the valve B on the air inlet pipe is adjusted until the water tank is full, the opening degree of the valve B of the air inlet pipe is smaller than the section opening of the siphon pipe, at the moment, the water in the water tank is siphoned through the siphon drainage pipe, and the water in the water tank is drained into the water tank 13 or the water storage lake through the siphon drainage pipe under the action of pressure;
step (three): step (two) is executed until the underground water in the side slope is introduced into the water tank under the action of pressure to realize siphon, at the moment, the valve B of the air inlet is closed, and the valve A of the water drainage pipe is opened;
step (IV): until the underground water in the side slope is sucked out to the siphon pipe extending position, and the water in the water tank is discharged through the drain pipe and the siphon drain pipe, the water in the water tank or the water storage lake can be prevented by the steel ball even if the water in the water tank or the water storage lake flows backwards due to the existence of the steel ball.
According to the slope siphon drainage system and method for hydraulic engineering, water is filled into the water tank through the air inlet to achieve the siphon phenomenon of the siphon drainage pipe, and water in the water tank is drained into the water storage tank. And because the water in the water tank reduces the pressure in the water tank and further reduces and make the groundwater in the side slope flow into the water tank through the siphon under the effect of pressure during, and the gas that originally in the siphon enters into the water tank among the back is got rid of by intake pipe department. When the siphon pipe starts to work and drain water, the valve at the air inlet pipe can be closed. In this way, the self-starting of the drainage system is realized. Maintaining a lower pressure in the siphon, tank, drain, siphon drain. After the underground water on the side slope is drained, the water in the reservoir can flow back under the action of pressure and flow back to the bottom of the U-shaped pipe, and the steel ball is pushed to be clamped into the position with the small inner diameter at the bottom of the U-shaped pipe, so that the water is prevented from flowing back into the water tank.
In addition, when the flaw-piece groundwater further rises, the groundwater enters the water tank again through the siphon under the action of pressure, and water in the water tank can flow out through the drain pipe and the drainage siphon, and can push the steel ball to roll towards the large inner diameter part of the pipeline through the drainage siphon, so that drainage is realized. Therefore, the intermittent drainage of the side slope underground water can be realized.
By adopting the slope siphon drainage system and method for hydraulic engineering, self-starting of drainage can be realized, and a power system of a high-power water pump does not need to be prepared. The structure of the invention is reliable, the water backflow can be prevented, and the safety performance is high. The drainage mode is suitable for long flows during slope clearance.
Claims (5)
1. The utility model provides a slope siphon drainage system for hydraulic engineering, includes siphon and water tank, siphon one end is deepened under the slope ground water level, and the other end communicates with the water tank and deepens the water tank lower part, the water tank sets up the domatic bottom of side slope, its characterized in that: a drain pipe is arranged at the bottom of the water tank, and a valve A is arranged on the drain pipe; an air inlet pipe extending upwards is arranged at the top of the water tank, and a valve B with adjustable opening degree is arranged on the air inlet pipe; the top of the water tank is also provided with a siphon drain pipe, the siphon drain pipe extends from the top of the water tank to the lower part of the water tank, a section of U-shaped pipe is arranged after the siphon drain pipe extends upwards from the top of the water tank, the tail end of the U-shaped pipe continues to extend downwards to form a drain end, the bottom of the U-shaped pipe of the siphon drain pipe is flush with the lower surface of the water tank, and the highest position of the siphon drain pipe is flush with the air inlet pipe; the inner diameter of one side of the U-shaped pipe close to the water tank end is smaller than that of one side of the U-shaped pipe far away from the water tank end, a steel ball is placed in an inner cavity at the bottom of the U-shaped pipe of the siphon drain pipe, and the diameter of the steel ball is slightly larger than the minimum diameter of the transverse part at the bottom of the U-shaped pipe;
the upper end of the U-shaped pipe of the siphon drain pipe, which is far away from the water tank, is lower than the upper end of the U-shaped pipe, which is close to the water tank;
the height of the upper end of the U-shaped pipe of the siphon drain pipe, which is far away from one side of the water tank, reaches the middle part of the water tank.
2. The slope siphon drainage system for hydraulic engineering of claim 1, characterized in that: the volume of the siphon is less than 1/200 of the volume of the tank.
3. The slope siphon drainage system for hydraulic engineering of claim 1, characterized in that: the inner diameter of the cross section of the drain pipe is 4-5mm, and the inner diameter of the siphon pipe is 0.5-1.5 mm.
4. A slope siphon drainage system for hydraulic engineering according to claim 3, characterized in that: the same water tank can be connected with less than 100 siphon pipes.
5. A slope siphon drainage method for hydraulic engineering, which adopts the slope siphon drainage system of claim 1, 2, 3 or 4, and comprises the following steps:
step (I): drilling a hole on the side slope, wherein the depth and the angle of the drilled hole are determined according to the underground water level line of the side slope, and the hole is ensured to extend below the underground water level line;
step (II): installing a siphon drainage system, closing a valve A on a drainage pipe, then injecting water into a box body through an air inlet pipe, adjusting a valve B on the air inlet pipe after the water tank is filled, so that the opening degree of the valve B of the air inlet pipe is smaller than the section opening of a siphon pipe, realizing siphon of water in the water tank through a siphon drainage pipe at the moment, and discharging the water in the water tank into a water pool or a water storage lake through the siphon drainage pipe under the action of pressure;
step (three): step (two) is executed until the underground water in the side slope is introduced into the water tank under the action of pressure to realize siphon, at the moment, the valve B of the air inlet is closed, and the valve A of the water drainage pipe is opened;
step (IV): until the underground water in the side slope is sucked out to the siphon pipe extending position, and the water in the water tank is discharged through the drain pipe and the siphon drain pipe, the water in the water tank or the water storage lake can be prevented by the steel ball even if the water in the water tank or the water storage lake flows backwards due to the existence of the steel ball.
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| CN202011197394.6A CN112267547B (en) | 2020-10-30 | 2020-10-30 | Slope siphon drainage system and method for hydraulic engineering |
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| CN202011197394.6A CN112267547B (en) | 2020-10-30 | 2020-10-30 | Slope siphon drainage system and method for hydraulic engineering |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049540A (en) * | 1989-08-14 | 1991-02-27 | 林高宸 | Buoyancy starting siphonage device |
| CN105714841A (en) * | 2016-04-06 | 2016-06-29 | 中国地质科学院探矿工艺研究所 | Siphon drainage device for geological crack |
| CN108560693A (en) * | 2018-05-07 | 2018-09-21 | 浙江大学 | Side slope siphon drainge system starter and method |
| CN109707443A (en) * | 2018-05-07 | 2019-05-03 | 范雲鹤 | A kind of renewable type tunnel drainage system and method |
-
2020
- 2020-10-30 CN CN202011197394.6A patent/CN112267547B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049540A (en) * | 1989-08-14 | 1991-02-27 | 林高宸 | Buoyancy starting siphonage device |
| CN105714841A (en) * | 2016-04-06 | 2016-06-29 | 中国地质科学院探矿工艺研究所 | Siphon drainage device for geological crack |
| CN108560693A (en) * | 2018-05-07 | 2018-09-21 | 浙江大学 | Side slope siphon drainge system starter and method |
| CN109707443A (en) * | 2018-05-07 | 2019-05-03 | 范雲鹤 | A kind of renewable type tunnel drainage system and method |
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