CN109707443B - Recoverable tunnel drainage system and method - Google Patents
Recoverable tunnel drainage system and method Download PDFInfo
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- CN109707443B CN109707443B CN201810425974.2A CN201810425974A CN109707443B CN 109707443 B CN109707443 B CN 109707443B CN 201810425974 A CN201810425974 A CN 201810425974A CN 109707443 B CN109707443 B CN 109707443B
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Abstract
The invention provides a recoverable tunnel drainage system, which comprises a drill hole, a siphon pipe, a side ditch and a siphon recovery device, wherein the position needing to be drained in tunnel surrounding rocks is provided with the drill hole, a water inlet of the siphon pipe is arranged in the drill hole, a water outlet of the siphon pipe is arranged in a closed water tank, the height of the top of the water tank is lower than that of the bottom of the drill hole, the siphon recovery device is positioned on a roadbed side slope outside the tunnel and comprises a water tank, an exhaust pipe valve, a handle, a chain, a plug, a left drain pipe, a right drain pipe and a drain pipe valve, the water tank is arranged on the roadbed slope outside the tunnel, the water tank is made of transparent materials, the exhaust pipe is arranged at the top of the water tank, the exhaust pipe valve is arranged on the exhaust pipe, the handle is arranged on the side wall of the water tank, the, the handle is connected with the plug through a chain, and the drain pipe valve is arranged at the water outlet of the left drain pipe.
Description
Technical Field
The invention belongs to the field of tunnel engineering, is suitable for drainage of mountain tunnels, and particularly relates to a recoverable tunnel drainage system and a recoverable tunnel drainage method.
Background
Under the influence of complex geological environment and hydrogeological conditions, the construction and operation process of the tunnel still faces a plurality of engineering diseases at present. The water leakage and the disease of the tunnel are a difficult problem which troubles the operation and the maintenance of the tunnel. Under the long-term action of tunnel water leakage, the durability of a tunnel structure can be damaged, accumulated water, icing and the like on a pavement can be generated due to frost heaving and cracking of a lining, the service function of the construction in the tunnel can be weakened due to tunnel water leakage, and the service life is shortened. Draining the ground water from the tunnel wall rock is an effective method.
At present, a tunnel drainage method is mainly characterized in that a drainage facility and a construction measure are arranged in a tunnel, accumulated water on the back of a lining and under a pavement structure layer is drained into a side ditch of the tunnel, and then the accumulated water flows out of the tunnel from the side ditch, so that the aim of reducing the underground water level of a rock surrounding area of the tunnel is achieved, the pressure of the accumulated water on the back of the lining is reduced, but the drainage pipe is blocked, so that the drainage is not smooth and even cut off, and the drainage pipe is arranged in the lining and is difficult to repair, so a tunnel drainage system fails after the tunnel is operated for a period of time, a student proposes a tunnel siphon drainage technology, the tunnel siphon drainage technology has the advantages of convenient drainage hole arrangement, strong water collection capacity, good drainage effect, high construction speed and the like, however, in the engineering using the tunnel siphon drainage method, the top of a siphon pipe needs to maintain a certain vacuum degree, however, due to the fact that gas dissolved in water is precipitated under negative pressure, outside air permeates into the siphon tube and the like, the vacuum degree of a part of the siphon tube is reduced because air is accumulated in the tube, a part of the siphon tube is temporarily in a stop state, if the siphon tube is in a stop state for a long time, siphon drainage maintenance is difficult, even the whole siphon drainage system is interrupted, and siphon starting becomes extremely difficult. In addition, the tunnel siphon drainage technology generally uses a siphon with the diameter of less than 4mm, the diameter of the siphon is small, silt clogging is easy to occur, siphon interruption is caused, and restarting is difficult after the siphon interruption.
Disclosure of Invention
The invention provides a dredging type tunnel drainage system and a dredging type tunnel drainage method aiming at the technical defect of difficult maintenance of the existing tunnel siphon drainage, which can repeatedly carry out siphon starting in the using process of the tunnel siphon drainage system, solve the problem that the siphon needs to be maintained and restarted due to air accumulation in a pipe in the using process of siphon drainage, and also solve the problem that the sediment of a siphon is silted up.
The technical scheme of the invention is as follows: a recoverable tunnel drainage system comprises a drilling hole, a siphon, a side ditch and a siphon recovery device, wherein the drilling hole is arranged at a position needing to be drained in tunnel surrounding rocks, a water inlet of the siphon is arranged in the drilling hole, a water outlet of the siphon is arranged in a closed water tank, the elevation of the top of the water tank is lower than that of the bottom of the drilling hole, the siphon recovery device is arranged on a roadbed side slope outside the tunnel and comprises a water tank, an exhaust pipe valve, a handle, a chain, a plug, a left drain pipe, a right drain pipe and a drain pipe valve, the water tank is arranged on the roadbed side slope outside the tunnel and is made of transparent materials, the elevation of the top of the water tank is lower than that of the bottom of the drilling hole, the exhaust pipe is arranged at the top of the water tank, the exhaust pipe valve is arranged on the exhaust pipe, the handle is arranged on the side wall of the, the stopper left end is fixed, and the stopper can be rotatory around the left end of stopper, connects through the chain between handle and the stopper, and the outlet department at left drain pipe is installed to the drain pipe valve, right drain pipe be snakelike crooked form.
Furthermore, 1-3 exhaust pipes are arranged, and the diameter of the siphon pipe is 4 mm.
Furthermore, 50-100 siphon pipes are arranged in the water tank.
A method of recoverable tunnel drainage, the method comprising:
(1) when the recoverable tunnel drainage system is used for the first time, the exhaust pipe valve is closed, the handle is rotated to enable the plug to be in a closed state, the drain pipe valve is opened, water is reversely filled into the left drain pipe from the drain pipe valve, after gas in the siphon pipe is discharged, the reverse water filling is stopped, the exhaust pipe valve is opened, the siphon action is started, underground water in tunnel surrounding rock flows through the siphon pipe, the water tank and the left drain pipe in sequence and is discharged out of the tunnel, and the initial drainage flow of the left drain pipe is recorded;
(2) when the drainage flow of the left drainage pipe is reduced to 20% -50% of the initial drainage flow, the valve of the drainage pipe is closed, the water level of the water tank is raised, and gas in the water tank is discharged through the exhaust pipe;
(3) when the water tank is full of water, the valve of the exhaust pipe is closed, the handle is rotated to drive the chain to open the plug, water in the water tank is discharged through the right exhaust pipe, negative pressure is formed in the water tank, air in the siphon pipe with siphon interruption is discharged, and silt in the clogged siphon pipe is discharged;
(4) after the underwater drainage in the water tank is finished, the handle is rotated to drive the chain to close the plug, the exhaust pipe valve is opened, the drain pipe valve is opened, the recoverable tunnel drainage system continues to work, and the initial drainage flow of a new left drain pipe is recorded.
The beneficial effects of the invention are as follows:
1. the invention manually controls the valve and the plug to produce negative pressure to recover siphon and discharge air and silt in the siphon without other equipment, and is simple and reliable.
2. The siphon starting system can be used for multiple times, can start a plurality of siphons simultaneously, and can start siphons quickly and efficiently.
Drawings
Fig. 1 is a schematic view of the overall structure of a recoverable tunnel drainage system according to the present invention;
FIG. 2 is a schematic cross-sectional view of a tunnel of a recoverable tunnel drainage system of the present invention;
FIG. 3 is a schematic structural diagram of a siphon restoring apparatus of a recoverable tunnel drainage system of the present invention with the plug closed;
FIG. 4 is a schematic structural diagram of a siphon restoration device of a recoverable tunnel drainage system of the present invention with the plug open;
in the figure: the device comprises a drill hole 1, a siphon 2, a side ditch 4, a tunnel 5, a mountain 6, a roadbed slope 7, a siphon restoring device 3, a water tank 31, an exhaust pipe 32, an exhaust pipe valve 33, a handle 34, a chain 35, a plug 36, a left drain pipe 37, a right drain pipe 38 and a drain pipe valve 39.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these 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, 2, 3 and 4, the embodiment provides a recoverable tunnel drainage system, which comprises a borehole 1, a siphon 2, a side ditch 4 and a siphon recovery device 3, wherein the borehole 1 is arranged at a position needing drainage in surrounding rocks of a tunnel 5, a water inlet of the siphon 2 is arranged in the borehole 1, a water outlet of the siphon 2 is arranged in a closed water tank 31, the top of the water tank 31 is lower than the bottom of the borehole 1 in elevation, the siphon recovery device 3 is arranged on a roadbed side slope 7 outside the tunnel 5, the siphon recovery device 3 comprises the water tank 31, an exhaust pipe 32, an exhaust pipe valve 33, a handle 34, a chain 35, a plug 36, a left drain pipe 37, a right drain pipe 38 and a drain pipe valve 39, the water tank 31 is arranged on a roadbed side slope 7 outside the tunnel 5, the water tank 31 is made of a transparent material, the top of the water tank 31 is lower than the bottom of the borehole 1 in elevation, the exhaust pipe 32 is arranged, the exhaust pipe valve 33 is arranged on the exhaust pipe 31, the handle 34 is arranged on the side wall of the water tank 31, the left drain pipe 37 and the right drain pipe 38 are arranged at the bottom of the water tank 31, the plug 36 is arranged at the water inlet of the right drain pipe 38, the left end of the plug 36 is fixed, the plug 36 can rotate around the left end of the plug 36, the handle 34 and the plug 36 are connected through the chain 35, and the drain pipe valve 39 is arranged at the water outlet of the left drain pipe 37. The number of the exhaust pipes 32 is 3, and the diameter of the siphon 2 is 4 mm. 100 siphon pipes 2 are arranged in the water tank 31, and the right drain pipe 38 is in a serpentine shape.
A method of recoverable tunnel drainage, the method comprising:
(1) when the recoverable tunnel drainage system is used for the first time, the exhaust pipe valve 33 is closed, the handle 34 is rotated to enable the plug 36 to be in a closed state, the drain pipe valve 39 is opened, water is reversely poured into the left drain pipe 37 from the drain pipe valve 39, after gas in the siphon pipe 2 is discharged, the reverse water pouring is stopped, the exhaust pipe valve 33 is opened, the siphon action is started, underground water in the surrounding rock of the tunnel 5 sequentially flows through the siphon pipe 2, the water tank 31 and the left drain pipe 37 and is discharged out of the tunnel 5, and the initial drainage flow of the left drain pipe 37 is recorded;
(2) when the drainage flow of the left drainage pipe 37 is reduced to 20% -50% of the initial drainage flow, the drainage pipe valve 39 is closed, the water level of the water tank 31 is raised, and the gas in the water tank 31 is discharged through the exhaust pipe 32;
(3) when the water tank 31 is full of water, the exhaust pipe valve 33 is closed, the handle 34 is rotated to drive the chain 35 to open the plug 36, the water in the water tank 31 is discharged through the right exhaust pipe 38, negative pressure is formed in the water tank 31, air in the siphon 2 with siphon interruption is discharged, and silt in the blocked siphon 2 is discharged;
(4) after the water in the water tank 31 is drained completely, the handle 34 is rotated to drive the chain 35 to close the plug 36, the exhaust pipe valve 33 is opened, the drain pipe valve 39 is opened, the recoverable tunnel drainage system continues to work, and the initial drainage flow of the new left drain pipe 37 is recorded.
Claims (3)
1. A recoverable tunnel drainage system is characterized by comprising a drilling hole, a siphon, a side ditch and a siphon recovery device, wherein the drilling hole is arranged at a position needing to be drained in surrounding rocks of a tunnel 5, a water inlet of the siphon is arranged in the drilling hole, a water outlet of the siphon is arranged in a closed water tank, the elevation of the top of the water tank is lower than that of the bottom of the drilling hole, the siphon recovery device is arranged on a roadbed side slope outside the tunnel and comprises a water tank, an exhaust pipe valve, a handle, a chain, a plug, a left drain pipe, a right drain pipe and a drain pipe valve, the water tank is arranged on the roadbed side slope outside the tunnel, the water tank is made of a transparent material, the elevation of the top of the water tank is lower than that of the bottom of the drilling hole, the exhaust pipe is arranged at the top of the water tank, the exhaust pipe valve is arranged on the, the stopper is installed in the water inlet department of right drain pipe, and the stopper left end is fixed, and the stopper can rotate around the left end of stopper, connects through the chain between handle and the stopper, and the drain pipe valve is installed in the water outlet department of left drain pipe, the blast pipe set up 1-3, the diameter of siphon is 4mm, the water tank in put into the siphon quantity be 50-100.
2. A recoverable tunnel drainage system according to claim 1, wherein the right drainage pipe is serpentine.
3. A method of recovering tunnel drainage using the system of any one of claims 1-2, the method comprising:
(1) when the recoverable tunnel drainage system is used for the first time, the exhaust pipe valve is closed, the handle is rotated to enable the plug to be in a closed state, the drain pipe valve is opened, water is reversely filled into the left drain pipe from the drain pipe valve, after gas in the siphon pipe is discharged, the reverse water filling is stopped, the exhaust pipe valve is opened, the siphon action is started, underground water in tunnel surrounding rock flows through the siphon pipe, the water tank and the left drain pipe in sequence and is discharged out of the tunnel, and the initial drainage flow of the left drain pipe is recorded;
(2) when the drainage flow of the left drainage pipe is reduced to 20% -50% of the initial drainage flow, the valve of the drainage pipe is closed, the water level of the water tank is raised, and gas in the water tank is discharged through the exhaust pipe;
(3) when the water tank is full of water, the valve of the exhaust pipe is closed, the handle is rotated to drive the chain to open the plug, water in the water tank is discharged through the right exhaust pipe, negative pressure is formed in the water tank, air in the siphon pipe with siphon interruption is discharged, and silt in the clogged siphon pipe is discharged;
(4) after the underwater drainage in the water tank is finished, the handle is rotated to drive the chain to close the plug, the exhaust pipe valve is opened, the drain pipe valve is opened, the recoverable tunnel drainage system continues to work, and the initial drainage flow of a new left drain pipe is recorded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810425974.2A CN109707443B (en) | 2018-05-07 | 2018-05-07 | Recoverable tunnel drainage system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810425974.2A CN109707443B (en) | 2018-05-07 | 2018-05-07 | Recoverable tunnel drainage system and method |
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| CN109707443A CN109707443A (en) | 2019-05-03 |
| CN109707443B true CN109707443B (en) | 2020-11-06 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110820915A (en) * | 2019-11-23 | 2020-02-21 | 丁梅 | Side slope drainage system |
| CN110792474B (en) * | 2019-11-23 | 2021-12-14 | 嘉兴金喜莱科技有限公司 | Long tunnel drainage system |
| CN111379589B (en) * | 2020-03-30 | 2021-10-26 | 中国十九冶集团有限公司 | Tunnel drainage system and drainage method |
| CN112267546B (en) * | 2020-10-30 | 2022-04-15 | 山东大禹水务建设集团有限公司 | Self-starting slope siphon drainage system and method for hydraulic engineering |
| CN112267547B (en) * | 2020-10-30 | 2022-04-05 | 宿迁市水务勘测设计研究有限公司 | Slope siphon drainage system and method for hydraulic engineering |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1135851A1 (en) * | 1983-07-01 | 1985-01-23 | Грузинский Ордена Трудового Красного Знамени Научно-Исследовательский Институт Энергетики И Гидротехнических Сооружений | Method of constructing drainage system |
| SU1167364A1 (en) * | 1984-02-10 | 1985-07-15 | Ilyushin Viktor F | Tunnel lining drainage arrangement |
| CN2121487U (en) * | 1991-11-06 | 1992-11-11 | 奚士成 | Siphon type air gate washing tank |
| CN2152833Y (en) * | 1993-07-09 | 1994-01-12 | 陈春早 | Flushing cistern for toilet bowl |
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Effective date of registration: 20201019 Address after: 314500 Lianhuabang 120, Wufeng Village, Chongfu Town, Tongxiang City, Jiaxing City, Zhejiang Province Applicant after: TONGXIANG CHANGXIN AGRICULTURAL MACHINERY SPECIALIZED COOPERATIVES Address before: 610227 Shuangliu District, Sichuan University, Jiang'an campus, Sichuan University, Sichuan Applicant before: Fan Yunhe |
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