CN113638370A - Hydraulic engineering is with high-efficient durable flood bank - Google Patents
Hydraulic engineering is with high-efficient durable flood bank Download PDFInfo
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- CN113638370A CN113638370A CN202110892932.1A CN202110892932A CN113638370A CN 113638370 A CN113638370 A CN 113638370A CN 202110892932 A CN202110892932 A CN 202110892932A CN 113638370 A CN113638370 A CN 113638370A
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- flood bank
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- 238000007667 floating Methods 0.000 claims abstract description 62
- 238000007789 sealing Methods 0.000 claims description 17
- 238000005188 flotation Methods 0.000 claims description 13
- 239000002775 capsule Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 59
- 230000000694 effects Effects 0.000 abstract description 11
- 230000000630 rising effect Effects 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 8
- 239000012528 membrane Substances 0.000 description 6
- 238000004891 communication Methods 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/205—Barrages controlled by the variations of the water level; automatically functioning barrages
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
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Abstract
The invention discloses a high-efficiency durable flood bank for hydraulic engineering, which comprises a concrete foundation and a flood bank device, wherein the flood bank device is arranged on one side of the surface of the concrete foundation, the surface of a bank base is fixedly connected with one side of the surface of the concrete foundation, a communicating containing cavity is arranged in the bank base and is positioned at the central position, a baffle device is arranged in the bank base and is positioned at the top position, a floating device is arranged in the communicating containing cavity and is fixedly connected with the bottom of the baffle device, a buffer device is arranged on one side of the surface of the bank base, and the baffle device and the floating device are connected in a matching manner. This hydraulic engineering is with high-efficient durable dyke, reached the effect of multiple functions, can be along with the rising of water level and automatically regulated height, and can cushion the unrestrained impact force of water, in time dissolve the impact force, and is durable lastingly, has prolonged life, has improved performance.
Description
Technical Field
The invention relates to the technical field of hydraulic engineering, in particular to a high-efficiency durable flood bank for hydraulic engineering.
Background
The hydraulic engineering flood bank refers to a dam which is built by hydraulic workers for preventing rivers from overflowing, and can effectively inhibit the flooding of the floods, protect people on the river bank from flood disasters and avoid property loss. A flood bank refers to a dam constructed to prevent a river from flooding, which has appeared for hundreds of years, and is usually a pile of soil, which is in the shape of a long strip and sometimes extends for several kilometers along a river, a lake or an ocean. Flood caused by long-time rainstorm is one of natural disasters, and the countryside is wide, the terrain is complex, and the season wind climate is remarkable. In order to avoid the damage of flood to urban buildings and agricultural fields, the construction of flood dams is particularly important.
At present, current flood control dyke structure is too simple, and the function is too single, and when meetting for a long time rainstorm, the water level increases rapidly, can't adapt to different water levels, and along with the water level surpasss dykes and dams height, a large amount of flood overflows, still can cause very big loss, has reduced performance.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a high-efficiency durable flood bank for hydraulic engineering, which solves the problems that the conventional flood bank is too simple in structure and single in function, the water level is rapidly increased when heavy rain occurs for a long time, the conventional flood bank cannot adapt to different water levels, and as the water level exceeds the height of the flood bank, a large amount of flood water overflows, the great loss is still caused, and the use performance is reduced.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a high-efficiency durable flood control dam for hydraulic engineering comprises a concrete foundation and a flood control dam device, wherein the flood control dam device is arranged on one side of the surface of the concrete foundation;
flood control dykes and dams device is equipped with dykes and dams base, intercommunication and holds chamber, retaining device, flotation device, buffer, the surface of dykes and dams base and concrete foundation's surperficial one side fixed connection, the intercommunication holds the chamber and sets up in the inside of dykes and dams base and is located central position, retaining device sets up in the inside of dykes and dams base and is located the top position, flotation device sets up in the inside that the intercommunication holds the chamber and with retaining device's bottom fixed connection, buffer sets up in the surperficial one side of dykes and dams base, the cooperation is connected between retaining device and the flotation device.
Preferably, the baffle device is provided with a baffle main body, an air cavity, an elastic sealing film and a connecting hole, the surface of the baffle main body is in sliding connection with the top of the inner wall of the dam base, the air cavity is formed in the bottom of the surface of the baffle main body, the elastic sealing film is fixed on the surface of the baffle main body and is located at the position of the air cavity, and the connecting hole is formed in the baffle main body and is communicated with the air cavity.
Preferably, the floating device is provided with a floating plate, a pushing housing and a floating bag body, the floating plate is arranged inside the communicating containing cavity and fixedly connected with the bottom of the baffle device, the pushing housing is connected to one side of the surface of the floating plate in a sliding mode, and the floating bag body is arranged between the bottom of the surface of the floating plate and two sides corresponding to the inner wall of the pushing housing.
Preferably, the buffer device is provided with a swinging base shell, an elastic device and a limiting stop strip, the swinging base shell is rotatably connected inside the dam base and located at the surface position, the elastic device is arranged inside the swinging base shell and located at one side of the surface, and the limiting stop strip is fixed on the surface of the swinging base shell and located at the end position.
Preferably, the resilient means is equipped with touch panel, arc elastic component, block rubber, touch panel sliding connection just is located surface one side in the inside of swing base shell, the arc elastic component is fixed between touch panel surface and the inside corresponding both sides of swing base shell, the block rubber is fixed and is close to the position of arc elastic component between touch panel surface and the inside corresponding both sides of swing base shell.
Preferably, the inside of swing base shell just is located surface one side and offers the recess with touch panel, arc elastic component, block rubber looks adaptation, arc elastic component, block rubber evenly distributed just stagger arrangement each other between the inside corresponding both sides of touch panel surface and swing base shell.
(III) advantageous effects
The invention provides a high-efficiency durable flood bank for hydraulic engineering. The method has the following beneficial effects:
(one), this hydraulic engineering is with high-efficient durable flood bank, lead to the concrete foundation, flood bank and dam device, dykes and dams base, the intercommunication holds the chamber, retaining device, flotation device, buffer, the buoyancy of make full use of water for flotation device is with retaining device jack-up, and then realize the automatic height adjustment, the water level of adaptable co-altitude rises, utilize buffer to cushion the ripples impact force that bad weather brought simultaneously, in time dissolve the impact force, it is durable lasting, service life is prolonged, service performance is improved.
(two), this water conservancy project is with high-efficient durable flood bank, through the baffle main part, the air cavity, the elastic sealing membrane, the connecting hole, flotation device, receive the effect of water buoyancy, flotation device floats along with the rising of water level, the baffle main part is by jack-up this moment, and then automatically regulated the manger plate height, effectively prevent that the water level that the torrential rain caused from rising and the relative condition who overflows, simultaneously along with flotation device's buoyancy, utilize the connecting hole and float and communicate between the bag body, receive compressed showy utricule, its inside gas enters into the air cavity, utilize gas pressure, make the top of elastic sealing membrane inflation and dykes and dams base closely laminate, and then sealed effect has been played, the condition that the water spilled over has been reduced, fully with the structural connection together, realize multiple functions, performance has been improved.
(III), this water conservancy project is with high-efficient durable flood bank, through the floating plate, promote the housing, float utricule, buffer, when the water level risees, the floating plate drives and promotes the housing, float utricule rises together, and under the combined action of the inner wall that communicates appearance chamber and buffer, push the housing through promoting and extrude the float utricule, make the float utricule that is located the floating plate bottom constantly expand, the volume constantly increases, be favorable to receiving buoyancy and rise, and sleep water level constantly risees, the water pressure increases, the conveying of float utricule inside gas through the connecting hole, in time expand the elasticity seal membrane, help to seal, utilize effort and reaction simultaneously, promote the housing at this moment and ejecting buffer to the base outside, make its dykes and dams fully contact with the water, help to improve the buffering effect, whole structure links together, no isolated structure exists, and the method is safe and reliable.
(IV), this water conservancy project is with high-efficient durable dyke dam, through floating utricule, swing base shell, resilient means, spacing shelves strip, when flotation means receives buoyancy effect to rise, can apply thrust to swing base shell on, and then make resilient means expose, fully contact with the water, in time dissolve the impact force of water and weaken, and then protect whole device, prolonged the life of equipment.
(five), this water conservancy project is with high-efficient durable flood bank, through touch panel, arc elastic component, block rubber, when the water strikes touch panel on, the common atress of elastic component, block rubber this moment, arc elastic component, the timely elastic deformation of block rubber have increased the stress point to in time apply the water of impact through touch panel with elasticity on, and then offset each other, weakened the impact force of water greatly, and then reach the effect of buffer protection.
Drawings
Fig. 1 is a schematic view of the overall structure of the efficient durable flood bank for hydraulic engineering according to the present invention;
fig. 2 is a schematic view of the internal structure of the high-efficiency durable flood bank for hydraulic engineering according to the present invention;
fig. 3 is a schematic structural view of a baffle device in a high-efficiency durable flood bank for hydraulic engineering according to the present invention;
fig. 4 is a schematic view showing the structure of the floating device in the high-efficiency durable flood bank for hydraulic engineering according to the present invention;
fig. 5 is a schematic structural view of a buffering device in a high-efficiency durable flood bank for hydraulic engineering according to the present invention;
fig. 6 is a schematic structural view of an elastic device in the high-efficiency durable flood bank for hydraulic engineering according to the present invention.
In the figure: 1 concrete foundation, 2 flood control dam devices, 21 dam foundation, 22 communicating cavity, 23 baffle device, 24 floating device, 25 buffer device, 231 baffle body, 232 air cavity, 233 elastic sealing film, 234 connecting hole, 241 floating plate, 242 pushing cover shell, 243 floating bag body, 251 swing base shell, 252 elastic device, 253 limit stop strip, 2521 contact panel, 2522 arc elastic element and 2523 rubber block.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1-6, the present invention provides a technical solution: a high-efficiency durable flood control dam for hydraulic engineering comprises a concrete foundation 1 and a flood control dam device 2, wherein the flood control dam device 2 is arranged on one side of the surface of the concrete foundation 1;
the flood control dam device 2 is provided with a dam base 21, a communication containing cavity 22, a baffle device 23, a floating device 24 and a buffer device 25, the surface of the dam base 21 is fixedly connected with one side of the surface of the concrete foundation 1, the communication containing cavity 22 is arranged inside the dam base 21 and is positioned at the central position, the baffle device 23 is arranged inside the dam base 21 and is positioned at the top position, the floating device 24 is arranged inside the communication containing cavity 22 and is fixedly connected with the bottom of the baffle device 23, the buffer device 25 is arranged at one side of the surface of the dam base 21, the baffle device 23 is connected with the floating device 24 in a matching way, the buoyancy of a water body is fully utilized, the baffle device 23 is jacked up by the floating device 24, the automatic height adjustment is further realized, the device is suitable for rising of water levels with different heights, and meanwhile, the buffer device 25 is utilized to buffer water wave impact force brought by severe weather, the impact force is timely dissolved, the durability is long, the service life is prolonged, and the service performance is improved.
The second embodiment:
the baffle device 23 is provided with a baffle main body 231, an air cavity 232, an elastic sealing membrane 233 and a connecting hole 234, the surface of the baffle main body 231 is connected with the top of the inner wall of the dam base 21 in a sliding way, the air cavity 232 is arranged at the bottom of the surface of the baffle main body 231, the elastic sealing membrane 233 is fixed on the surface of the baffle main body 231 and is positioned at the position of the air cavity 232, the connecting hole 234 is arranged in the baffle main body 231 and is communicated with the air cavity 232, under the action of water buoyancy, the floating device 24 floats along with the rising of the water level, at the moment, the baffle main body 231 is jacked up, the water retaining height is automatically adjusted, the condition that the water level rises and overflows due to rainstorm is effectively prevented, meanwhile, along with the floating of the floating device 24, the communication between the connecting hole 234 and the floating bag body 243 is utilized, the compressed floating bag body 243 has the internal air entering the air cavity 232, and utilizes the air pressure, so that the elastic sealing film 233 is expanded to be closely attached to the top of the dam base 21, thereby performing a sealing function and reducing the water overflowing.
The third embodiment is as follows:
the floating device 24 is provided with a floating plate 241, a pushing cover 242 and a floating bag body 243, the floating plate 241 is arranged inside the communicating cavity 22 and fixedly connected with the bottom of the baffle device 23, the pushing cover 242 is connected with one side of the surface of the floating plate 241 in a sliding manner, the floating bag body 243 is arranged between the bottom of the surface of the floating plate 241 and two sides corresponding to the inner wall of the pushing cover 242, when the water level rises, the floating plate 241 drives the pushing cover 242 and the floating bag body 243 to rise together, and under the combined action of the inner wall of the communicating cavity 22 and the buffer device 25, the pushing cover 242 extrudes the floating bag body 243, so that the floating bag body 243 at the bottom of the floating plate 241 is continuously expanded, the volume is continuously increased, the rising due to the floating force is facilitated, the water level rises when sleeping, the water pressure is increased, and the gas in the floating bag body 243 is continuously conveyed through the connecting hole 234, the elastic sealing film 233 is expanded in time to facilitate sealing, and at the same time, the housing 242 is pushed to eject the buffer device 25 to the outside of the dam base 21 by utilizing the action force and reaction, so that the buffer device is fully contacted with the water body, thereby facilitating improvement of the buffer effect.
The fourth embodiment is as follows:
The elastic device 252 is provided with a contact panel 2521, an arc-shaped elastic element 2322 and a rubber block 2523, the contact panel 2521 is slidably connected inside the swing base housing 251 and is located at one side of the surface, the arc-shaped elastic element 2322 is fixed between the surface of the contact panel 2521 and two corresponding sides inside the swing base housing 251, the rubber block 2523 is fixed between the surface of the contact panel 2521 and two corresponding sides inside the swing base housing 251 and is close to the position of the arc-shaped elastic element 2322, when a water body impacts the contact panel 2521, the elastic element 2322 and the rubber block 2523 are stressed together, the arc-shaped elastic element 2322 and the rubber block 2523 are elastically deformed in time, stress points are increased, and elastic force is applied to the impacting water body through the contact panel 1 in time, so as to counteract each other, thereby greatly weakening the impact force of the water body 2523 and further achieving the effect of buffer protection.
When in use, the whole device is arranged at a designated position, under the action of the buoyancy of a water body, the floating device 24 floats along with the rise of the water level, at the moment, the baffle main body 231 is jacked up, so that the water retaining height is automatically adjusted, the condition that the water level rises and overflows due to rainstorm is effectively prevented, meanwhile, along with the floating of the floating device 24, the floating plate 241 is communicated with the floating bag body 243 through the connecting hole 234 and the compressed floating bag body 243, the air in the floating bag body 243 enters the air cavity 232 and expands the elastic sealing membrane 233 to be tightly attached to the top of the dam base 21 through the air pressure, so that the sealing effect is achieved, the condition of water overflow is reduced, and when the water level rises, the floating plate 241 drives the pushing cover 242 and the floating bag body 243 to rise together, and the pushing cover 242 is pushed to extrude the floating bag body 243 through the pushing of the pushing cover 242 under the combined action of the communicating cavity 22 and the buffer device 25, the floating capsule 243 at the bottom of the floating plate 241 is expanded continuously, the volume is increased continuously, the floating capsule 243 is beneficial to rising under the action of buoyancy, the water level rises continuously when sleeping, the water pressure is increased, the gas in the floating capsule 243 is conveyed through the connecting hole 234, the elastic sealing film 233 is expanded in time to facilitate sealing, meanwhile, the acting force and the reaction are utilized, the housing 242 is pushed to eject the buffer device 25 out of the dam base 21, the buffer device is fully contacted with the water body, the buffering effect is improved, the pushing force is applied to the swinging base shell 251 when the floating device 24 is subjected to the action of the buoyancy, the elastic device 252 is exposed and fully contacted with the water body, the impact force of the water body is weakened in time, and when the water body impacts the contact panel 2521, the elastic piece 2322 and the rubber block 2523 are stressed together, the arc-shaped elastic piece 2322 is exposed, The rubber blocks 2523 are elastically deformed in time, so that stress points are increased, and elasticity is timely applied to the impacted water body through the contact panel 2521 to be mutually offset, so that the impact force of the water body is greatly weakened, and the effect of buffer protection is achieved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a hydraulic engineering is with durable flood bank of high efficiency, includes concrete foundation (1), flood bank device (2), its characterized in that: the flood control dam device (2) is arranged on one side of the surface of the concrete foundation (1);
flood control dykes and dams device (2) are equipped with dykes and dams base (21), communicate and hold chamber (22), retaining device (23), flotation device (24), buffer (25), the surface of dykes and dams base (21) and surface one side fixed connection of concrete foundation (1), the intercommunication holds chamber (22) and sets up in the inside of dykes and dams base (21) and is located central point, retaining device (23) set up in the inside of dykes and dams base (21) and are located the top position, flotation device (24) set up in the inside of intercommunication appearance chamber (22) and with the bottom fixed connection of retaining device (23), buffer (25) set up in surface one side of dykes and dams base (21), the cooperation is connected between retaining device (23) and flotation device (24).
2. The efficient durable flood bank for the hydraulic engineering according to claim 1, wherein: the baffle device (23) is provided with a baffle main body (231), an air cavity (232), an elastic sealing film (233) and a connecting hole (234), the surface of the baffle main body (231) is in sliding connection with the top of the inner wall of the dam base (21), the air cavity (232) is arranged at the bottom of the surface of the baffle main body (231), the elastic sealing film (233) is fixed on the surface of the baffle main body (231) and located at the position of the air cavity (232), and the connecting hole (234) is arranged in the baffle main body (231) and communicated with the air cavity (232).
3. The efficient durable flood bank for the hydraulic engineering according to claim 1, wherein: the floating device (24) is provided with a floating plate (241), a pushing casing (242) and a floating capsule body (243), the floating plate (241) is arranged inside the communicating accommodating cavity (22) and fixedly connected with the bottom of the baffle device (23), the pushing casing (242) is slidably connected to one side of the surface of the floating plate (241), and the floating capsule body (243) is arranged between the bottom of the surface of the floating plate (241) and two sides corresponding to the inner wall of the pushing casing (242).
4. The efficient durable flood bank for the hydraulic engineering according to claim 1, wherein: the buffer device (25) is provided with a swinging base shell (251), an elastic device (252) and a limiting stop strip (253), the swinging base shell (251) is rotatably connected inside the dam base (21) and is located at the surface position, the elastic device (252) is arranged inside the swinging base shell (251) and is located at one side of the surface, and the limiting stop strip (253) is fixed on the surface of the swinging base shell (251) and is located at the end position.
5. The efficient durable flood bank for the hydraulic engineering according to claim 4, wherein: the elastic device (252) is provided with a contact panel (2521), an arc-shaped elastic piece (2322) and a rubber block (2523), the contact panel (2521) is connected in the swing base shell (251) in a sliding mode and located on one side of the surface, the arc-shaped elastic piece (2322) is fixed between the surface of the contact panel (2521) and two corresponding sides inside the swing base shell (251), and the rubber block (2523) is fixed between the surface of the contact panel (2521) and two corresponding sides inside the swing base shell (251) and is close to the position of the arc-shaped elastic piece (2322).
6. The efficient durable flood bank for the hydraulic engineering according to claim 5, wherein: the inner side of the swinging base shell (251) and the side of the surface of the swinging base shell (251) are provided with grooves matched with the contact panel (2521), the arc-shaped elastic piece (2322) and the rubber block (2523), and the arc-shaped elastic piece (2322) and the rubber block (2523) are uniformly distributed between the surface of the contact panel (2521) and the corresponding two sides in the swinging base shell (251) and are arranged in a staggered mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110892932.1A CN113638370A (en) | 2021-08-04 | 2021-08-04 | Hydraulic engineering is with high-efficient durable flood bank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110892932.1A CN113638370A (en) | 2021-08-04 | 2021-08-04 | Hydraulic engineering is with high-efficient durable flood bank |
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| CN113638370A true CN113638370A (en) | 2021-11-12 |
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| CN202110892932.1A Pending CN113638370A (en) | 2021-08-04 | 2021-08-04 | Hydraulic engineering is with high-efficient durable flood bank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117822509A (en) * | 2024-03-01 | 2024-04-05 | 四川省水利科学研究院 | Construction equipment of retaining wall for hydraulic engineering and application method of construction equipment |
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| CN213448532U (en) * | 2020-08-17 | 2021-06-15 | 中交第一航务工程局有限公司 | Hydraulic cofferdam |
| CN213538828U (en) * | 2020-07-07 | 2021-06-25 | 四川安格建筑有限公司 | Flood control baffle |
| CN213805199U (en) * | 2020-11-12 | 2021-07-27 | 黄彬 | Hydraulic engineering is with high-efficient durable flood bank |
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2021
- 2021-08-04 CN CN202110892932.1A patent/CN113638370A/en active Pending
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| CN103953013A (en) * | 2014-04-22 | 2014-07-30 | 华南理工大学 | Water level sensing automatic ascending and descending dike device and method thereof |
| CN108374395A (en) * | 2018-03-21 | 2018-08-07 | 刘红广 | A kind of checkdam for hydraulic and hydroelectric engineering |
| CN211113433U (en) * | 2019-08-07 | 2020-07-28 | 苗成虎 | Hydraulic engineering is with high-efficient durable flood bank |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117822509A (en) * | 2024-03-01 | 2024-04-05 | 四川省水利科学研究院 | Construction equipment of retaining wall for hydraulic engineering and application method of construction equipment |
| CN117822509B (en) * | 2024-03-01 | 2024-05-07 | 四川省水利科学研究院 | Construction equipment of retaining wall for hydraulic engineering and application method of construction equipment |
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Application publication date: 20211112 |