CN110777910B - River bank side slope drainage system - Google Patents
River bank side slope drainage system Download PDFInfo
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- CN110777910B CN110777910B CN201911159952.7A CN201911159952A CN110777910B CN 110777910 B CN110777910 B CN 110777910B CN 201911159952 A CN201911159952 A CN 201911159952A CN 110777910 B CN110777910 B CN 110777910B
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- siphon
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
Abstract
The invention provides a drainage system for a river bank side slope, a declined drill hole is drilled on the river bank side slope, a drain pipe is arranged in the drill hole, a water inlet of the drain pipe is positioned at the bottom of the drill hole, a water outlet of the drain pipe is connected with a starting device, the diameter of the starting device is 4mm, the starting device is placed in river water, the starting device is fixed with the bottom of a river bed, the drain pipe is connected with a water inlet chamber, a water outlet pipe A is connected between the drain pipe and a lower chamber, a valve A is arranged between an upper chamber and the water inlet chamber, a valve B is arranged between the upper chamber and a water outlet chamber, a water outlet pipe B is connected with the water outlet chamber, a water outlet pipe C is connected with the bottom of the lower chamber, the elevation of the water outlet pipe C is arranged below the lowest water level line of a river, a rotating shaft is arranged in the lower chamber, the rotating shaft is in a, the upper chamber and the lower chamber are separated by a plug body.
Description
Technical Field
The invention belongs to the field of geotechnical engineering, and particularly relates to a drainage system and method for a river bank side slope.
Background
Railway construction is often influenced by lines, a plurality of tunnels need to be penetrated through, tunnel engineering construction can generate a large amount of abandoned slag, the tunnel construction is usually arranged at the periphery of the tunnel according to the terrain, then a plurality of mountainous railways are positioned in high-mountain canyons and are influenced by the terrain, the tunnel abandoned slag is often accumulated on flood beaches, a large amount of abandoned slag is accumulated to form a high and steep side slope, and the stability of the high and steep side slope is seriously examined due to the fact that soil bodies are relatively loose. Meanwhile, a railway built along a river can form a longer roadbed slope, and the stability of the roadbed slope is of great importance to the train running safety. However, most landslides occur with great correlation to groundwater. The rise of the underground water level leads to the increase of the volume weight of the landslide body, the reduction of the effective stress of the slope surface and the reduction of the shear strength, thereby leading to the instability of the landslide. For the side slope, when the water level in front of the slope is rapidly reduced, groundwater in the slope seeps outwards to generate seepage force, the downward sliding force is increased, and the landslide is promoted to be unstable. Therefore, the underground water in the side slope is discharged in time, the stability of the underground water level is kept, and the method is very key to the prevention and treatment of landslide disasters and emergency treatment.
The common slope drainage method for geotechnical engineering comprises the following steps: the horizontal gravity type drainage efficiency is low, a long drilling hole is needed, and the problem of blockage can occur after long-time use; the underground drainage hole is complex in construction, large in engineering quantity and high in cost; the sump well needs a permanent power source for pumping water and is difficult to maintain. Aiming at the existing side slope drainage method, experts propose a siphon drainage technology, and the side slope siphon drainage method has the advantages of convenient arrangement of drain holes, strong water collection capacity, good drainage effect, small required drilling length, high engineering construction speed and the like.
Disclosure of Invention
The invention aims at the defects that when a siphon drainage method is used for draining water on a river bank side slope in the prior art, the siphon action is suspended because of the reduction of the underground water level, the vacuum degree in a siphon pipe is reduced, and the siphon action is difficult to restore automatically. The characteristic of the bank side slope is combined, a drainage system and a method suitable for the bank side slope are provided, the water flow of the bank side slope is used for providing power, air accumulated in a siphon pipe can be pumped away after the siphon action is stopped, the vacuum degree of the siphon pipe is increased, and the siphon action is restored to start the drainage process.
The technical scheme of the invention is as follows: a drainage system for the side slope of river bank is composed of a drilling hole with a downward inclined hole, a siphon tube in the hole and with water inlet at bottom, a starting unit with 4mm diameter and fixed to the bottom of river bed, a water inlet chamber, a water outlet chamber, a valve A, a valve B, a water outlet tube A, a water outlet tube B, a water outlet tube C, a paddle, a rotary axle, a rotary wheel, a connecting rod, a plug, a casing, an upper cavity, a lower cavity, a siphon tube connected to said water inlet chamber, a water outlet tube A between said siphon tube and lower cavity, a valve A between said upper and lower cavities, a water outlet chamber connected to water outlet chamber and a water outlet tube C connected to bottom of lower cavity, the water outlet pipe C is arranged below the lowest water level line of the river, the rotating shaft is arranged in the lower cavity and is concave, one end of the rotating shaft is connected with the shell, the other end of the rotating shaft extends out of the shell to be connected with the blades, the rotating wheel is arranged on the rotating shaft, the connecting rod is connected between the rotating wheel and the plug body, and the upper cavity and the lower cavity are separated by the plug body.
Furthermore, a plurality of the drainage systems for the river bank side slopes are arranged along the river bank side slopes.
Furthermore, the vertical distance between the hole opening and the hole bottom of the drilling hole is more than 2m higher than the height of the water column corresponding to the local atmospheric pressure, and the diameter of the drilling hole is not less than 75 mm.
Furthermore, one or more siphon pipes are arranged.
Further, one or more starting devices are arranged.
Furthermore, the starting device is made of corrosion-resistant materials.
Furthermore, the siphon adopts a PU pipe or a PA pipe.
A drainage method for a river bank side slope comprises the following steps:
(1) analyzing the buried depth of the underground water level of the side slope and the underground water level line to be controlled through the investigation of the geological conditions of the side slope engineering, and drilling a declined drill hole to enter the position below the safe underground water level line of the side slope; the drill holes can be drilled at different positions of the slope surface and are determined according to factors such as the type of the slope rock-soil body, the gradient, the rainfall characteristics of the slope area, the construction method and the like;
(2) one end of a siphon is placed in the drill hole, the other end of the siphon is placed in river water, the siphon is filled with water in a reverse direction, after gas in the siphon is discharged, the reverse water filling is stopped, the other end of the siphon is connected with a starting device, the starting device is fixedly connected with a river bed, slope underground water flows through the siphon, a water outlet pipe A, a lower cavity and a water outlet pipe C and is discharged into the river or flows through the siphon, a water inlet chamber, an upper cavity, a water outlet chamber and a water outlet pipe B and is discharged into the river;
(3) after rainfall occurs, the river water level line rises, the paddle is impacted by water flow to rotate, the rotating shaft and the plug body are driven to move, the plug body moves downwards, the upper chamber forms negative pressure, the valve A is opened, the valve B is closed, air accumulated in the siphon pipe is sucked into the upper chamber, the plug body moves upwards, the pressure of the upper chamber is increased, the valve B is opened, the valve A is closed, air in the upper chamber enters the water outlet chamber and is discharged from the water outlet pipe B, the air accumulated in the siphon pipe is continuously discharged, the vacuum degree of the siphon pipe is increased, the siphon action is recovered, and siphon drainage is normally performed on the side slope;
(4) the river water level rises and submerges the blades, the plug stops moving, the slope groundwater enters the water inlet chamber, the valve A is opened, the slope groundwater enters the upper cavity chamber, the valve B is opened, the slope groundwater flows through the water outlet chamber and the water outlet pipe B and is discharged into the river, or the slope groundwater flows through the siphon, the water outlet pipe A, the lower cavity chamber and the water outlet pipe C and is discharged into the river;
(5) the next time rainfall occurs, the river water line rises, and the process is repeated.
The invention has the following advantages:
1. the invention converts water flow energy into plug motion kinetic energy by using the blades, pumps away air accumulated in the siphon tube, increases the vacuum degree in the siphon tube, provides power for siphon action and provides guarantee for self-recovery of siphon action.
2. The invention starts the siphon action by utilizing the river power without external force and manual operation.
3. The device can play a role in synchronously rising the river water level along with the occurrence of rainfall, and can stop working along with the submergence of the river water level for starting the device.
4. The invention can provide larger suction force by utilizing the pressure difference produced by river power, can frequently remove silt in the siphon pipe and prevent the siphon pipe from being silted up.
Drawings
FIG. 1 is an overall schematic view of the present invention;
FIG. 2 is a schematic view of the downward movement of the plug body of the actuating device of the present invention;
FIG. 3 is a schematic view of the upward movement of the plug body of the actuating device of the present invention;
FIG. 4 is a schematic illustration of the shutdown state of the present invention;
in the figure: the device comprises a river bank slope 1, a drill hole 2, a siphon 3, an underground water level line 4, a starting device 5, a water inlet chamber 51, a water outlet chamber 52, a valve A53, a valve B54, a water outlet pipe A55, a water outlet pipe B56, a water outlet pipe C57, a paddle 58, a rotating shaft 59, a rotating wheel 60, a connecting rod 61, a plug body 62, a shell 63, an upper chamber 64, a lower chamber 65 and a river level line 7.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that the examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Example 1
As shown in fig. 1-4, a drainage system for a river bank side slope comprises a borehole 2, a siphon 3 and a starting device 5, wherein a declined borehole 2 is drilled and formed in a river bank side slope 1, the siphon 3 is placed in the borehole 2, a water inlet of the siphon 3 is positioned at the bottom of the borehole 2, a water outlet of the siphon 3 is connected with the starting device 5, the diameter of the siphon 3 is 4mm, the starting device 5 is placed in river water, the starting device 5 is fixed with the bottom of a river bed, the starting device 5 comprises a water inlet chamber 51, a water outlet chamber 52, a valve a53, a valve B54, a water outlet pipe a 55, a water outlet pipe B56, a water outlet pipe C57, a paddle 58, a rotating shaft 59, a rotating wheel 60, a connecting rod 61, a plug 62, a shell 63, an upper chamber 64 and a lower chamber 65, the siphon 3 is connected with the water inlet chamber 51, the water outlet pipe a 55 is connected between the siphon 3 and the, the valve B54 is arranged between the upper cavity 64 and the water outlet cavity 52, the water outlet pipe B56 is connected with the water outlet cavity 52, the water outlet pipe C57 is connected with the bottom of the lower cavity 65, the water outlet pipe C57 is arranged below the lowest water level line of a river, the rotating shaft 59 is arranged in the lower cavity 65, the rotating shaft 59 is concave, one end of the rotating shaft 59 is connected with the shell 63, the other end of the rotating shaft 59 extends out of the shell 63 to be connected with the paddle 58, the rotating wheel 60 is arranged on the rotating shaft 59, the connecting rod 61 is connected between the rotating wheel 60 and the plug body 62, and the upper cavity 64 and the lower cavity 65 are separated by the. The plurality of the drainage systems of the river bank side slopes are arranged along the river bank side slopes 1. The vertical distance between the hole opening and the hole bottom of the drill hole 2 is more than 2m higher than the height of the water column corresponding to the local atmospheric pressure, and the diameter of the drill hole 2 is not less than 75 mm. One or more siphon pipes 3 are provided. One or more of the starting means 5 are provided. The starting device 5 is made of corrosion-resistant material. The siphon 3 is PU pipe or PA pipe.
A drainage method for a river bank side slope comprises the following steps:
(1) analyzing the buried depth of the underground water level of the side slope and the underground water level line 4 to be controlled through the investigation of the geological conditions of the side slope engineering, and drilling a declined drill hole 2 below the underground water level line 4 of the side slope safety; the drill holes 2 can be drilled at different positions of the slope surface and are determined according to factors such as the type of a slope rock-soil body, the slope, the rainfall characteristics of a slope region, a construction method and the like;
(2) one end of a siphon 3 is placed in the drill hole 2, the other end of the siphon 3 is placed in river water, the siphon is filled with water in a reverse direction, after gas in the siphon 3 is discharged, the reverse water filling is stopped, the other end of the siphon 3 is connected with a starting device 5, then the starting device 5 is fixedly connected with a river bed, slope underground water flows through the siphon 3, a water outlet pipe A55, a lower cavity 65 and a water outlet pipe C57 and is discharged into a river or flows through the siphon 3, a water inlet chamber 51, an upper cavity 64, a water outlet chamber 52 and a water outlet pipe B56 and is discharged into the river;
(3) after rainfall occurs, the river water level line 7 rises, the paddle 58 is impacted by water flow to rotate, the rotating shaft 59 and the plug body 62 are driven to move, the plug body 62 moves downwards, the upper chamber 64 forms negative pressure, the valve A53 is opened, the valve B54 is closed, air accumulated in the siphon 3 is sucked into the upper chamber 64, the plug body 62 moves upwards, the pressure of the upper chamber 64 is increased, the valve B54 is opened, the valve A53 is closed, air in the upper chamber 64 enters the water outlet chamber 52 and is discharged from the water outlet pipe B56, air accumulated in the siphon 3 is continuously discharged, the vacuum degree of the siphon 3 is increased, the siphon action is recovered, and the slope is normally siphoned and drained;
(4) the river water line 7 rises and submerges the paddle 58, the plug body 62 stops moving, the slope groundwater enters the water inlet chamber 51, the valve A53 is opened, the slope groundwater enters the upper chamber 64, the valve B54 is opened, the slope groundwater flows through the water outlet chamber 52 and the water outlet pipe B56 and is discharged into the river, or the slope groundwater flows through the siphon 3, the water outlet pipe A55, the lower chamber 65 and the water outlet pipe C57 and is discharged into the river;
(5) the next time rainfall occurs, the river water line 7 rises and the above process is repeated.
Claims (7)
1. A river bank side slope drainage system is characterized by comprising a drill hole, a siphon and a starting device, wherein a declined drill hole 2 is formed by drilling on a river bank side slope, the siphon is placed in the drill hole, a water inlet of the siphon is positioned at the bottom of the drill hole, a water outlet of the siphon is connected with the starting device, the diameter of the siphon is 4mm, the starting device is placed in river water and is fixed with the bottom of a river bed, the starting device comprises a water inlet chamber, a water outlet chamber, a valve A, a valve B, a water outlet pipe A, a water outlet pipe B, a water outlet pipe C, a paddle, a rotating shaft, a rotating wheel, a connecting rod, a plug body, a shell, an upper chamber and a lower chamber, the siphon is connected with the water inlet chamber, the water outlet pipe A is connected between the siphon and the lower chamber, the valve A is arranged between the upper chamber and the water inlet chamber, the valve B is arranged between the upper, the water outlet pipe C is arranged below the lowest water level line of the river, the rotating shaft is arranged in the lower cavity, the rotating shaft is concave, one end of the rotating shaft is connected with the shell, the other end of the rotating shaft extends out of the shell and is connected with the blades, the rotating wheel is arranged on the rotating shaft, the connecting rod is connected between the rotating wheel and the plug body, and the upper cavity and the lower cavity are separated by the plug body;
after rainfall occurs, the river water line rises, the paddle is impacted by water flow and rotates to drive the rotating shaft and the plug body to move, the plug body moves downwards, the upper chamber forms negative pressure, the valve A is opened, the valve B is closed, air accumulated in the siphon is sucked into the upper chamber, the plug body moves upwards, the pressure of the upper chamber is increased, the valve B is opened, the valve A is closed, and the air in the upper chamber enters the water outlet chamber and is discharged from the water outlet pipe B.
2. The system of claim 1, wherein the plurality of drainage systems are disposed along the bank.
3. The riparian slope drainage system according to claim 1, wherein the vertical distance between the opening of the drilled hole and the bottom of the drilled hole is more than 2m higher than the water column height corresponding to the local atmospheric pressure, and the diameter of the drilled hole is not less than 75 mm.
4. The riparian slope drainage system according to claim 1, wherein one or more siphon pipes are provided.
5. The riparian slope drainage system according to claim 4, wherein the actuating means is provided in one or more of the plurality of sets.
6. The riparian slope drainage system according to claim 4, wherein the siphon is PU pipe or PA pipe.
7. The riparian slope drainage system according to claim 5, wherein the starting means is made of corrosion resistant material.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911159952.7A CN110777910B (en) | 2019-11-23 | 2019-11-23 | River bank side slope drainage system |
| PCT/CN2019/123211 WO2021097936A1 (en) | 2019-11-23 | 2019-12-05 | River bank slope water drainage system |
| ZA2022/00159A ZA202200159B (en) | 2019-11-23 | 2022-01-03 | River bank slope water drainage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911159952.7A CN110777910B (en) | 2019-11-23 | 2019-11-23 | River bank side slope drainage system |
Publications (2)
| Publication Number | Publication Date |
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| CN110777910A CN110777910A (en) | 2020-02-11 |
| CN110777910B true CN110777910B (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911159952.7A Active CN110777910B (en) | 2019-11-23 | 2019-11-23 | River bank side slope drainage system |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN110777910B (en) |
| WO (1) | WO2021097936A1 (en) |
| ZA (1) | ZA202200159B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113279368A (en) * | 2021-04-21 | 2021-08-20 | 三峡大学 | Device for automatically adjusting internal osmotic water pressure of side slope |
| CN113250141A (en) * | 2021-04-21 | 2021-08-13 | 三峡大学 | System and method for adjusting osmotic water pressure inside slope with water level change |
| CN114108557B (en) * | 2021-11-16 | 2022-08-09 | 深圳市新绿园林工程有限公司 | Water and soil loss prevention device for river bank vegetation recovery |
| CN117344759A (en) * | 2023-12-04 | 2024-01-05 | 郓城县农业综合执法大队 | Ecological slope protection structure of soil and water conservation formula |
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| JP2001040674A (en) * | 1999-07-27 | 2001-02-13 | Tonichi Kogyo Kk | Rejuvenation method for drain pipe |
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2019
- 2019-11-23 CN CN201911159952.7A patent/CN110777910B/en active Active
- 2019-12-05 WO PCT/CN2019/123211 patent/WO2021097936A1/en active Application Filing
-
2022
- 2022-01-03 ZA ZA2022/00159A patent/ZA202200159B/en unknown
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3755037B2 (en) * | 2002-04-11 | 2006-03-15 | 独立行政法人土木研究所 | Clogging prevention device for collecting pipe for groundwater drainage facility |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110777910A (en) | 2020-02-11 |
| WO2021097936A1 (en) | 2021-05-27 |
| ZA202200159B (en) | 2022-03-30 |
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