CN113279784A - Concrete lining device for upper and lower bent sections of inclined shaft of diversion tunnel of hydropower station - Google Patents
Concrete lining device for upper and lower bent sections of inclined shaft of diversion tunnel of hydropower station Download PDFInfo
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- CN113279784A CN113279784A CN202110744024.8A CN202110744024A CN113279784A CN 113279784 A CN113279784 A CN 113279784A CN 202110744024 A CN202110744024 A CN 202110744024A CN 113279784 A CN113279784 A CN 113279784A
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- 238000009434 installation Methods 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 238000009415 formwork Methods 0.000 claims description 12
- 239000011435 rock Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 38
- 238000005516 engineering process Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000005452 bending Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 9
- 239000002023 wood Substances 0.000 description 6
- 238000003860 storage Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000005406 washing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/102—Removable shuttering; Bearing or supporting devices therefor
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Abstract
The invention discloses a concrete lining device for an upper bent section and a lower bent section of an inclined shaft of a diversion tunnel of a hydropower station, and belongs to the technical field of concrete construction of hydraulic engineering. The concrete lining device for the up-down bent section of the diversion tunnel inclined shaft of the hydropower station comprises a curved needle beam, wherein a curved body template device is arranged on the outer surface of the curved needle beam in a sliding mode, and two ends of the curved needle beam are connected with the tunnel through a supporting structure. The invention has the advantages of reliable technology, factory manufacturing, field installation in the tunnel, high construction efficiency, fast progress and low cost, greatly reduces the labor intensity of workers and improves the mechanization level in construction.
Description
Technical Field
The invention relates to the technical field of concrete construction of hydraulic engineering, in particular to a concrete lining device for an upper bending section and a lower bending section of an inclined shaft of a diversion tunnel of a hydropower station.
Background
According to statistics, the water energy resource in China can be developed with the installed capacity of about 6.6 billion kw and the annual energy production of about 3 trillion kWh. The construction of pumped storage power stations in China starts from the late stage of the 60 th century in 20 th century, and the construction scale is small; in the 80 s of the 20 th century, with the construction of a large group of pumped storage power stations in the east areas such as Guangdong, east China, North China and the like, the pumped storage development of China is pushed to a new height. As of 2017, the installed capacity of the pumped storage power station in China is the first in the world, the on-stream scale is 2849 ten thousand kilowatts, and the on-stream scale is 3871 thousand kilowatts. In 2020, the total operation capacity reaches 4000 ten thousand kilowatts; about 9000 ten thousand kilowatts are achieved by 2025 years; conventional hydropower stations and pumped storage power stations have wide prospects.
In the construction of hydropower stations in China, the diversion type power stations occupy a considerable proportion. The water diversion tunnel is used as a part of a water pumping and energy storage power station water charging and discharging system and comprises a water conveying inclined shaft and a vertical shaft. The inclined straight section of the inclined shaft and the vertical section of the vertical shaft are well applied by adopting a slip form technology, and the concrete rapid lining technology of the upper and lower bent sections of the inclined shaft or the vertical shaft is not well solved all the time, so that the method becomes a technical problem of hydropower station construction.
The traditional technical method comprises the steps of manufacturing curved surface wood templates with curved nails in a processing plant, manually erecting the templates and pouring concrete. The technology and the method are old, labor intensity is high during construction, construction period is long, cost is high, and safety risk is high.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, in the construction of the up-down bent sections of the inclined shaft and the vertical shaft of the diversion tunnel of the hydropower station, a concrete lining method is old, the labor intensity is high during construction, the construction period is long, the cost is high, and the safety risk is high.
In order to achieve the purpose, the invention adopts the following technical scheme:
the concrete lining device for the upper and lower bent sections of the inclined shaft of the diversion tunnel of the hydropower station comprises a curved needle beam, wherein a curved body template device is arranged on the outer surface of the curved needle beam in a sliding manner, and two ends of the curved needle beam are connected with the tunnel through a supporting structure;
the curvature of the curved needle beam is consistent with the central radius and curvature of the tunnel; the length of the curved needle beam is more than twice of that of the curved template device.
Preferably, the curved needle beam is of a square steel truss structure.
Preferably, the two ends of the curved needle beam are respectively provided with a group of supporting structures; one group of the supporting structures are arranged on the wall of the lined cast concrete, and the other group of the supporting structures are arranged on the wall of the excavated tunnel.
Preferably, the supporting structure is composed of a plurality of jacks, and the jacks are arranged on the upper side, the lower side, the left side and the right side of the curved needle beam.
Preferably, the outer surface of the jack is rotatably connected with an adjustable screw rod, and the other end of the adjustable screw rod is rotatably connected with the outer surface of the curved needle beam.
Preferably, the curved template device consists of a curved template block and a template trolley, the template trolley is arranged on the outer surface of the curved needle beam and slides, and the curved template block is connected with the template trolley through a jack.
Preferably, the curved formwork block is formed by splicing four blocks, and the curved formwork block can extend and expand the formwork surface or contract and demold under the telescopic action of the jack.
Preferably, the inner side surface of the curved template device is provided with a pouring hole penetrating to the outer side; the pouring hole is arranged close to the highest point of the curved template device in the installation state.
Preferably, a first winch is arranged at the front end of the curved needle beam in the moving direction, the first winch is fixedly arranged on the excavated tunnel rock wall, and the first winch pulls the curved needle beam through a rope.
Preferably, a second winch is arranged on one side of the front end of the curved needle beam in the moving direction, and the second winch pulls the curved body template device through a rope.
Compared with the prior art, the invention provides a concrete lining device for the upper and lower bent sections of the diversion tunnel inclined shaft of a hydropower station, which has the following beneficial effects:
1. the invention has reliable technology, industrialized manufacture, field installation in the tunnel, high construction efficiency, fast progress and low cost, greatly reduces the labor intensity of workers and improves the mechanization level in construction.
2. According to the invention, the curved body template device is sleeved on the curved needle beam, and the curved needle beam and the curved body template device respectively move along with the mechanical traction of the first winch and the second winch, so that short-segment multi-cycle use can be realized; when the radiuses of the upper bending section and the lower bending section are consistent, the turning is turned over to realize the mutual use, and the construction cost is further saved.
3. The invention replaces wood with steel, saves a large amount of wooden templates, has high reusability, and is safe and environment-friendly; compared with the erection and disassembly construction of a support wooden template, the concrete lining construction integrally walking in place has low safety risk.
The parts which are not involved in the device are the same as or can be realized by the prior art, the technology of the invention is reliable, the factory manufacture is realized, the site installation is carried out in the tunnel, the construction work efficiency is high, the progress is fast, the cost is low, the labor intensity of workers is greatly reduced, and the mechanization level in the construction is improved; the curved body template device is sleeved on the curved needle beam, and the curved needle beam and the curved body template device respectively move along with the mechanical traction of the first winch and the second winch, so that short-segment multi-cycle use can be realized; when the radiuses of the upper bending section and the lower bending section are consistent, the turning is realized for mutual use, and the construction cost is further saved; the steel is used for replacing wood, a large amount of wooden templates are saved, the reusability is high, and the method is safe and environment-friendly; compared with the erection and disassembly construction of a support wooden template, the concrete lining construction integrally walking in place has low safety risk.
Drawings
FIG. 1 is a schematic view of the present invention in use;
FIG. 2 is a schematic view of the present invention in use at the kick portion;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;
FIG. 4 is a schematic structural view of a curved needle beam;
FIG. 5 is a schematic view of a partial cross-sectional structure of a curved template device;
FIG. 6 is a schematic view of a partial cross-sectional structure of the curved needle beam and curved body template assembly;
FIG. 7 is a schematic cross-sectional view taken at B-B in FIG. 4;
FIG. 8 is a schematic cross-sectional view at C-C in FIG. 2;
FIG. 9 is a schematic view of the structure of the curved template device in a contracted state;
fig. 10 is a schematic structural view of the upper bent portion of the present invention in a use state.
In the figure: 1. a curved needle beam; 2. a curved body template device; 201. a curved template block; 202. a template trolley; 3. a support structure; 4. a jack; 5. an adjustable lead screw; 6. a first winch; 7. a second winch.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-10, the concrete lining device for the upper and lower bent sections of the diversion tunnel inclined shaft of the hydropower station comprises a curved needle beam 1, a curved template device 2 is slidably arranged on the outer surface of the curved needle beam 1, and two ends of the curved needle beam 1 are connected with the tunnel through a support structure 3. The curvature of the curved needle beam 1 is consistent with the central radius and curvature of the tunnel; the supporting structures 3 at the two ends adjust the axis of the curved needle beam 1 to the axis of the tunnel to coincide with each other; the curved formwork device 2 slides along the curved needle beam 1 to complete formwork support and concrete pouring construction at different positions.
The length of the curved needle beam 1 is more than twice of that of the curved template device 2. Preferably, the length of the curved needle beam 1 is set to be between two and three times that of the curved template device 2. If the length of the curved needle beam 1 is set to be too large, the installation difficulty is increased; at the same time, the required manufacturing material consumption is increased. The length of the curved needle beam 1 is set to be more than twice of that of the curved template device 2, so that the curved template device 2 can move on the curved needle beam 1 after a section of poured template support is finished, and the curved needle beam can move to the next concrete pouring section for template support; provides relative movement support for the curved needle beam 1 and the curved body template device 2.
The curved needle beam 1 adopts a square steel truss structure; by utilizing the characteristics of the steel truss structure, the steel truss has enough supporting strength and lower weight; meanwhile, the disassembly and assembly are convenient. After each part is processed in a factory, the parts are preliminarily assembled outside; conveying the tunnel into the tunnel, and finally assembling; moreover, each part is simple and convenient to process and operate and strong in reusability; compared with the traditional construction, a large amount of wood boards are needed, and the method is economical and environment-friendly.
The supporting structures 3 are respectively arranged at two ends of the curved needle beam 1 in a group. Wherein, a group of supporting structures 3 are arranged on the wall of the lined cast concrete; and the other group of support structures 3 are arranged on the excavated tunnel rock wall, namely the front end of the moving direction of the curved needle beam 1. The two supporting structures 3 are arranged to provide a supporting function, the curved needle beams 1 are supported from two ends, and the curved needle beams 1 in the middle part form a moving track of the curved template device 2; in the mounting of the support structure 3, the position is adjusted precisely so that the needle beam axis coincides with the tunnel axis.
Specifically, the supporting structure 3 is composed of a plurality of jacks 4, and the plurality of jacks 4 are arranged on the upper side, the lower side, the left side and the right side of the curved needle beam 1 to provide stable support. Therefore, the curved needle beam 1 and the inner wall of the tunnel are both of cambered surface structures, and a cushion block needs to be arranged in the installation process of the jack 4 so as to be stably installed. Preferably, set up two jack 4 as a set of at least in the downside of curved needle roof beam 1, improve and be no less than two strong points to possess better stability.
Furthermore, the outer surface of the jack 4 is rotatably connected with an adjustable screw rod 5, and the other end of the adjustable screw rod 5 is rotatably connected with the outer surface of the curved needle beam 1; at least two adjustable screw rods 5 are matched and arranged on one jack 4. The adjustable screw rod 5 is arranged, so that the adjusting range with higher precision is achieved; and, the stability of the support is further improved. The adjustable screw rod 5 is connected with the curved needle beam 1 and the jack 4 in a rotating way, and connecting plates with holes are respectively and fixedly connected on the outer surface of the jack 4 and the outer surface of the curved needle beam 1; the rotating shaft is inserted in the connecting plate and penetrates through the adjustable screw rod 5, and the adjustable screw rod 5 is rotatably connected with the connecting plate. Preferably, two connecting plates are symmetrically arranged on two sides of one end of the adjustable screw rod 5, so that the strength and the stability are improved.
The curved template device 2 is composed of a curved template block 201 and a template trolley 202, the template trolley 202 is arranged on the outer surface of the curved needle beam 1 to slide, and the curved template block 201 is connected with the template trolley 202 through a jack 4. The template trolley 202 adopts a steel truss structure and is sleeved on the outer surface of the curved needle beam 1. For the sliding mode, a sliding rail can be arranged on the outer surface of the curved needle beam 1, the template trolley 202 is provided with a corresponding moving wheel, and grease is coated on the sliding rail for lubrication, so that the friction force is reduced; the pattern board carriage 202 slides along the curved needle beam 1. After sliding to the set position, the position of the template carriage 202 is locked.
Wherein, the curved template block 201 is formed by splicing four blocks; the bent template block 201 can extend and expand the template surface or contract and demold under the telescopic action of the jack 4; in the opened state, the curved template block 201 is consistent with the tunnel lining structural surface.
Specifically, the curvature of the curved template block 201 is designed to be consistent with the curvature of the tunnel; and the upper and lower blocks and the left and right blocks are arranged in a staggered way when stretching.
One of the curved template blocks 201 is arranged in a manner that the left and right sections of the upper and lower curved template blocks 201 are vertical surfaces; when the template surface is opened, the left and right curved template blocks 201 are stretched first, and then the upper and lower curved template blocks 201 are stretched; when the template surface is contracted, the upper and lower curved template blocks 201 are firstly withdrawn, and then the left and right curved template blocks 201 are withdrawn. Similarly, the two cross sections of the upper and lower curved template blocks 201 may be in other forms such as horizontal planes, so as to realize the staggered arrangement during extension and retraction.
And a pouring hole penetrating to the outer side is formed in the inner side surface of the curved template device 2. The pouring hole is arranged close to the highest point of the curved template device 2 in the installation state; so as to convey the concrete inwards from the pouring holes after the curved formwork device 2 is installed in place; the position close to the highest point can complete pouring at one time.
Meanwhile, the pouring holes can also be arranged at different elevation positions of the curved template device 2, and a plurality of pouring holes are arranged for pouring layer by layer from bottom to top; and (4) plugging the pouring hole of the layer before the pouring of one layer is finished and the next layer is poured. Set up to a plurality of holes of pouring, can further improve the closely knit degree of pouring and pour the effect.
A first winch 6 is arranged at the front end of the curved needle beam 1 in the moving direction, and the first winch 6 is fixedly arranged on the excavated tunnel rock wall; the first winch 6 pulls the curved needle beam 1 by a rope to move.
A second winch 7 is arranged on one side of the front end of the curved needle beam 1 in the moving direction, and the second winch 7 pulls the curved template device 2 to move through a rope.
In the concrete use, after the concrete lining of one section of tunnel is poured and reaches a certain strength, the jack 4 between the curved template block 201 and the template trolley 202 retracts to demould. After demolding, the second winch 7 pulls the curved formwork device 2 to move forwards on the curved needle beam 1, and the curved formwork device 2 is moved to the next concrete pouring section from one concrete pouring section. After the second concrete bin of the tunnel is poured, retracting the supporting structures 3 at the two ends of the curved needle beam 1 to keep the curved template device 2 in an unfolded state; the first winch 6 arranged at the front end of the tunnel lining is used for pulling the curved needle beam 1 to move forwards, and the adjustment in the movement is consistent with the axis of the tunnel. After moving for a distance greater than one concrete lining section, extending out of the support structure 3 and fixing with the tunnel; thereafter, the curved body template device 2 is moved again. And (5) performing reciprocating circulation to finish the concrete lining of the whole bent section.
Referring to fig. 1, the left and right frames show the schematic views of the usage status of the downward bending part and the upward bending part, respectively. When the diameters and the turning radiuses of the upper and lower bent sections of the inclined and vertical shafts of the diversion tunnel are consistent, the curved needle beam 1 and the curved body template device 2 are turned over for 180 degrees, and the installation positions of the first winch 6 and the second winch 7 are correspondingly adjusted, so that the diversion tunnel and the vertical shaft can be used mutually.
In the specific construction, firstly, a curved needle beam 1 and a curved template device 2 are designed according to the shape and the size of the tunnel; the upper and lower bending sections of the inclined and vertical shaft of the diversion tunnel of the hydropower station are similar to a part of a full-air round tire with the radius consistent with that of the tunnel, the curve needle beam 1 is of a curved body structure with a small center, and the curved body template device 2 is sleeved outside the curve needle beam 1 and is of a large curved body structure. After the design is finished, processing in a factory, and carrying out primary assembly according to the size of each part; and (5) carrying out final assembly after the steel pipe is conveyed to a construction site. Before the installation of the curved needle beam 1, the reinforcement binding construction of the tunnel bending section is firstly carried out. After the steel bars are bound, an operator firstly fixedly installs a first winch 6 in the tunnel; the curved needle beam 1 in the traction installation provides forward and upward tension. After the curve needle beam 1 is assembled, the supporting structure 3 located at the front end in the moving direction is installed on the excavated tunnel rock wall, the supporting structure 3 located at the rear end is installed on the tunnel wall lined with the cast concrete, and the curve needle beam 1 is adjusted to be consistent with the tunnel axis. Thereafter, the curved body pattern plate device 2 is mounted on the curved needle beam 1, and the position of the curved body pattern plate device 2 is adjusted by the second winding machine 7. After the position is determined, the curved body template device 2 is stretched to be supported; and the two ends of the template are closed and reinforced by the aid of the planks in a top pulling manner, so that the template is prevented from overflowing during concrete pouring. Then, feeding concrete through the set pouring holes to finish pouring; and pouring the bottom, the middle and the top. In the pouring process, a concrete pouring cupola pipe can be arranged at a pouring opening so as to pump concrete into a warehouse; and, set up the manual gate valve that closes in the inboard one end of the pipe of washing the sky that is located the template, do benefit to the concrete placement and accomplish the back, in time close the hole of washing the sky when dismantling the pump line, prevent that the concrete that has just pour into the storehouse from flowing out.
The invention provides a curved needle beam 1 for concrete lining of upper and lower bent sections of a vertical shaft and an inclined diversion tunnel of a hydropower station, a curved body template device 2 and a concrete lining construction method using the device, which successfully solve the problem that hydropower construction technology is disturbed for many years; the device and the construction method have the advantages of reliable technology, factory manufacturing, field installation in the tunnel, fast progress, low cost, greatly reduced labor intensity of workers and low safety risk; and improves the mechanization level in construction.
According to the invention, the square steel structure truss curved needle beam 1 is adopted, and the radius of the axis of the inclined and vertical shaft upper and lower bending sections of the diversion circular tunnel is consistent, so that the position movement in construction is realized; the curved template device 2 is designed and manufactured into a spatial curved structure, namely a circular ring body with part of the same radius, the radius of the circular ring body is consistent with the radius and curvature of the upper and lower curved sections of the inclined and vertical wells, and the circular ring body is similar to the part of a circular tire body filled with air and is matched with the inner wall of a tunnel; the curved body template device 2 is sleeved on the curved needle beam 1, and the curved needle beam 1 and the curved body template device 2 move along with the mechanical traction of the first winch 6 and the second winch 7 respectively to realize the support and the movement of the lining template.
According to the invention, the steel curved needle beam 1 and the curved template device 2 are adopted, and steel is used for replacing wood, so that a large amount of wood templates are saved, and the device is high in reusability, safe and environment-friendly; the method has the advantages of factory production, field installation, high construction efficiency and fast progress; the curved needle beam 1 is matched with the curved template device 2, so that short-section multi-cycle use can be realized; when the radiuses of the upper bending section and the lower bending section are consistent, the turning is realized for mutual use, and the construction cost is further saved; compared with the erection and disassembly construction of a support wooden template, the concrete lining construction integrally walking in place has low safety risk.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The concrete lining device for the upper and lower bent sections of the inclined shaft of the diversion tunnel of the hydropower station is characterized by comprising a curved needle beam (1), wherein a curved body template device (2) is arranged on the outer surface of the curved needle beam (1) in a sliding manner, and two ends of the curved needle beam (1) are connected with the tunnel through a supporting structure (3);
the curvature of the curved needle beam (1) is consistent with the central radius and curvature of the tunnel; the length of the curved needle beam (1) is more than twice of that of the curved template device (2).
2. The concrete lining device for the upper and lower bent sections of the diversion tunnel inclined shaft of the hydropower station according to claim 1, wherein the curved needle beam (1) adopts a square steel truss structure.
3. The concrete lining device for the upper and lower bent sections of the diversion tunnel inclined shaft of the hydropower station according to claim 1, wherein the support structures (3) are respectively provided in a group at two ends of the curved needle beam (1); one group of the supporting structures (3) is arranged on the wall of the lined cast concrete, and the other group of the supporting structures (3) is arranged on the rock wall of the excavated tunnel.
4. The concrete lining device for the upper and lower bent sections of the diversion tunnel inclined shaft of the hydropower station according to claim 3, wherein the supporting structure (3) is composed of a plurality of jacks (4), and the plurality of jacks (4) are arranged on the upper, lower, left and right sides of the curved needle beam (1).
5. The concrete lining device for the upper and lower bent sections of the diversion tunnel inclined shaft of the hydropower station according to claim 4, wherein an adjustable screw rod (5) is rotatably connected to the outer surface of the jack (4), and the other end of the adjustable screw rod (5) is rotatably connected with the outer surface of the curved needle beam (1).
6. The concrete lining device for the upper and lower bent sections of the diversion tunnel inclined shaft of the hydropower station according to claim 1, wherein the curved body template device (2) is composed of a curved body template block (201) and a template trolley (202), the template trolley (202) is arranged on the outer surface of the curved needle beam (1) to slide, and the curved body template block (201) is connected with the template trolley (202) through a jack (4).
7. The concrete lining device for the upper and lower bent sections of the diversion tunnel inclined shaft of the hydropower station according to claim 6, wherein the curved formwork block (201) is formed by splicing four blocks, and the curved formwork block (201) can stretch and expand a formwork surface or contract and demold under the telescopic action of the jack (4).
8. The concrete lining device for the upper and lower bent sections of the diversion tunnel inclined shaft of the hydropower station according to claim 1, wherein a pouring hole penetrating to the outer side is formed in the inner side surface of the bent body template device (2); the pouring hole is arranged close to the highest point of the curved template device (2) in the installation state.
9. The concrete lining device for the upper and lower bent sections of the diversion tunnel inclined shaft of the hydropower station according to claim 1, characterized in that a first winch (6) is arranged at the front end of the moving direction of the curved needle beam (1), the first winch (6) is fixedly arranged on the excavated tunnel rock wall, and the first winch (6) pulls the curved needle beam (1) through a rope.
10. The concrete lining device for the upper and lower bent sections of the diversion tunnel inclined shaft of the hydropower station according to claim 1, wherein a second winch (7) is arranged on one side of the front end of the curved needle beam (1) in the moving direction, and the second winch (7) pulls the curved body formwork device (2) through a rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110744024.8A CN113279784A (en) | 2021-06-30 | 2021-06-30 | Concrete lining device for upper and lower bent sections of inclined shaft of diversion tunnel of hydropower station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110744024.8A CN113279784A (en) | 2021-06-30 | 2021-06-30 | Concrete lining device for upper and lower bent sections of inclined shaft of diversion tunnel of hydropower station |
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| Publication Number | Publication Date |
|---|---|
| CN113279784A true CN113279784A (en) | 2021-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110744024.8A Pending CN113279784A (en) | 2021-06-30 | 2021-06-30 | Concrete lining device for upper and lower bent sections of inclined shaft of diversion tunnel of hydropower station |
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| CN (1) | CN113279784A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115182753A (en) * | 2022-07-29 | 2022-10-14 | 中国水利水电第三工程局有限公司 | Inclined shaft S-shaped full-section lining template system and lining construction method |
-
2021
- 2021-06-30 CN CN202110744024.8A patent/CN113279784A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115182753A (en) * | 2022-07-29 | 2022-10-14 | 中国水利水电第三工程局有限公司 | Inclined shaft S-shaped full-section lining template system and lining construction method |
| CN115182753B (en) * | 2022-07-29 | 2023-02-14 | 中国水利水电第三工程局有限公司 | Inclined shaft S-shaped full-section lining template system and lining construction method |
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