CN110820701A - Water conservancy water and electricity water inlet arrangement structure - Google Patents
Water conservancy water and electricity water inlet arrangement structure Download PDFInfo
- Publication number
- CN110820701A CN110820701A CN201911184208.2A CN201911184208A CN110820701A CN 110820701 A CN110820701 A CN 110820701A CN 201911184208 A CN201911184208 A CN 201911184208A CN 110820701 A CN110820701 A CN 110820701A
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- water
- water inlet
- hydropower
- water conservancy
- inlet arrangement
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
- E02B9/02—Water-ways
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention relates to the field of water conservancy and hydropower facilities, in particular to a water conservancy and hydropower water inlet arrangement structure which effectively reduces the influence of construction on the surrounding environment so as to better protect the surrounding environment. The internal cavity of the water inlet end is arranged below the ground of the side slope, so that ground engineering is effectively converted into underground engineering as much as possible, the height of the side slope engineering is greatly reduced, the disturbance to the ground can be reduced to the greatest extent, and the environment protection effect is obvious. Meanwhile, the excavation amount is effectively and greatly reduced by the structural design, so that the investment and the construction period are effectively controlled, and obvious economic benefits are obtained. The invention is particularly suitable for the structural design of the shore water inlet with steep natural side slope and better rock tunneling condition.
Description
Technical Field
The invention relates to the field of water conservancy and hydropower facilities, in particular to a water conservancy and hydropower water inlet arrangement structure.
Background
In water conservancy and hydropower engineering, water inlets of more projects are arranged on the bank side, and bank side water inlets mainly comprise a bank tower type, a gate shaft type and a bank slope type. The shore tower type water inlet is formed by uniformly arranging a trash rack, a bell mouth and a gate in a tower body connected with the shore, and the open cut amount of the structure is large; the gate shaft type water inlet is characterized in that a trash rack is arranged outside a hole, a bell mouth is directly dug on a bank slope, a gate is arranged in a shaft, the tunnel at the upstream section of the shaft with the structure is a blind section, and the gate does not have maintenance conditions under the condition of normal power generation water level; the bank slope type water inlet is formed by arranging the trash rack and the gate along a bank slope, and the size and the opening and closing force of the gate with the structure are larger after the horn mouth is arranged on the gate. Taking a dam-free water diversion project as an example, a sand blocking bank and a gravel settling pond need to be arranged at the upstream of the water inlet, and according to the project characteristic, the front section of the water inlet is longer and more excavations are needed.
Therefore, no matter the traditional shore tower type or gate shaft type water inlet type, the trash rack is uniformly distributed outside the hole, and in addition, the upstream sand blocking ridge and the gravel settling pool section are relatively long in length, and the natural side slope is steep, so that the project side slope is high, the influence on the natural environment is very large, and particularly in an environment sensitive area, the project faces the problem of unsolvable environmental protection. Meanwhile, the huge excavation supporting engineering amount causes large investment in water inlet engineering and long construction period, and directly influences the economic rationality of the whole engineering.
Disclosure of Invention
The invention aims to provide a water conservancy and hydropower water inlet arrangement structure which effectively reduces the influence of construction on the surrounding environment so as to better protect the surrounding environment.
The technical scheme adopted by the invention for solving the technical problems is as follows: water conservancy water and electricity water inlet arrangement structure, including the water inlet end, the inside cavity of water inlet end sets up in the below ground of side slope, inside cavity is through the water inlet and outside intercommunication of water inlet end.
Further, the inner chamber is communicated with the diversion tunnel.
Further, a gravel settling pond is arranged in the inner cavity.
Further, a bell mouth is arranged in the inner cavity.
Furthermore, an overhaul gate and a working gate are arranged in the bell mouth.
Further, a trash rack is arranged between the bell mouth and the gravel depositing pool.
Further, a reinforcing anchor cable is arranged in the inner area of the side slope above the inner cavity.
Further, a passive protective net is arranged on the ground surface of the side slope.
Further, a vent hole is arranged in the inner cavity.
The invention has the beneficial effects that: the internal cavity of the water inlet end is arranged below the ground of the side slope, so that ground engineering is effectively converted into underground engineering as much as possible, the height of the side slope engineering is greatly reduced, the disturbance to the ground can be reduced to the greatest extent, and the environment protection effect is obvious. Meanwhile, the excavation amount is effectively and greatly reduced by the structural design, so that the investment and the construction period are effectively controlled, and obvious economic benefits are obtained. The invention is particularly suitable for the structural design of the shore water inlet with steep natural side slope and better rock tunneling condition.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Labeled as: the device comprises an air vent 1, a working gate 2, an overhaul gate 3, a bell mouth 4, a trash rack 5, a gravel settling pond 6, a bottom sill elevation 7, a diversion tunnel 8, a sand blocking sill top elevation 9, a lowest power generation water level 10, a check flood level 11, a water inlet top elevation 12, a weak unloading 13, a strong unloading 14, a passive protective net 15, a reinforcing anchor rope 16, a side slope 17, a water inlet end 18, an internal cavity 19 and a water inlet 20.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The water conservancy and hydropower inlet arrangement structure shown in fig. 1 comprises an inlet end 18, an internal chamber 19 of the inlet end 18 is arranged below the ground of the side slope 17, and the internal chamber 19 is communicated with the outside through an inlet 20 of the inlet end 18.
Traditional water conservancy water and electricity water inlet no matter be bank tower type, gate shaft formula or bank slope formula, its water inlet is whole to be open arranging, not only can bring the engineering volume of a large amount of side slopes 17 excavations like this, also can cause very big destruction to ecological environment on every side. Aiming at the defects in the traditional structure, the invention skillfully arranges the internal cavity 19 of the water inlet end 18 below the ground of the side slope 17, and the internal cavity 19 is communicated with the outside through the water inlet 20 of the water inlet end 18, i.e. the design concept of less excavation and strong support is adopted, so that the structure of the whole water inlet end 18 is in a 'cave tunnel' arrangement type, thereby greatly reducing the height of the engineering side slope, effectively protecting the environment, simultaneously greatly reducing the excavation and support amount of the engineering, saving the investment, reducing the construction period and having obvious economic benefit.
In order to facilitate the flow of water to the diversion tunnel 8, said internal chamber 19 may optionally be placed in communication with the diversion tunnel 8. In actual use, water flows into the inner chamber 19 through the water inlet 20 and then flows to the diversion tunnel 8 naturally.
In order to achieve a corresponding function of the inner chamber 19, it is possible to choose to provide a gravel basin 6 in said inner chamber 19 and a bell mouth 4 in said inner chamber 19. Meanwhile, the bell mouth 4 can be further preferably provided with an overhaul gate 3 and a working gate 2, and the dirt barrier 5 is preferably arranged between the bell mouth 4 and the gravel depositing pool 6. As shown in figure 1, because the bell mouth 4, the gravel sink 6 and other facilities are sequentially and compactly arranged, the hoist is arranged at the top of the water inlet end 18, and the structures of the water inlet end 18 are uniformly distributed in the hole except the sand blocking ridge. The arrangement type has no blind hole section in front of the gate, the overhaul condition of the arrangement type is basically similar to that of the traditional shore tower type water inlet, and the operation, the maintenance and the overhaul are very convenient. In order to ensure the ventilation requirements of the inner chamber 19, it is preferred that the inner chamber 19 is provided with a ventilation hole 1.
To strengthen the slope above the interior chamber 19, it is preferred that reinforcing tendons 16 be provided in the interior region of the slope above the interior chamber 19. As shown in fig. 1, reinforcing cable 16 may allow for better stress conditions in the interior region of the slope above interior chamber 19, thereby ensuring structural stability and safety of interior chamber 19.
In order to prevent damage to facilities due to rocks or the like, it is preferable that a passive protection net 15 is provided on the ground surface of the side slope 17.
The invention can effectively avoid high engineering side slope, achieve the purposes of protecting environment, saving investment and reducing construction period, and has very wide market promotion prospect.
Claims (9)
1. Water conservancy water and electricity water inlet arrangement structure, its characterized in that: the water inlet structure comprises a water inlet end (18), an internal cavity (19) of the water inlet end (18) is arranged below the ground of a side slope (17), and the internal cavity (19) is communicated with the outside through a water inlet (20) of the water inlet end (18).
2. A water conservancy and hydropower inlet arrangement as claimed in claim 1, wherein: the inner chamber (19) is in communication with the diversion tunnel (8).
3. A water conservancy and hydropower inlet arrangement as claimed in claim 1 or 2, wherein: a gravel sedimentation tank (6) is arranged in the inner chamber (19).
4. A water conservancy and hydropower inlet arrangement as claimed in claim 3, wherein: a bell mouth (4) is arranged in the inner cavity (19).
5. A water conservancy and hydropower inlet arrangement as claimed in claim 4, wherein: and an overhaul gate (3) and a working gate (2) are arranged in the bell mouth (4).
6. A water conservancy and hydropower inlet arrangement as claimed in claim 4, wherein: a trash rack (5) is arranged between the bell mouth (4) and the gravel settling tank (6).
7. A water conservancy and hydropower inlet arrangement as claimed in claim 1 or 2, wherein: a reinforcing tendon (16) is provided within the interior region of the slope above the interior chamber (19).
8. A water conservancy and hydropower inlet arrangement as claimed in claim 1 or 2, wherein: and a passive protective net (15) is arranged on the ground surface of the side slope (17).
9. A water conservancy and hydropower inlet arrangement as claimed in claim 1 or 2, wherein: a vent hole (1) is arranged in the inner cavity (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911184208.2A CN110820701A (en) | 2019-11-27 | 2019-11-27 | Water conservancy water and electricity water inlet arrangement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911184208.2A CN110820701A (en) | 2019-11-27 | 2019-11-27 | Water conservancy water and electricity water inlet arrangement structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110820701A true CN110820701A (en) | 2020-02-21 |
Family
ID=69541770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911184208.2A Pending CN110820701A (en) | 2019-11-27 | 2019-11-27 | Water conservancy water and electricity water inlet arrangement structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110820701A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114645521A (en) * | 2022-03-28 | 2022-06-21 | 中电建十一局工程有限公司 | Construction method for existing reservoir emergency water drainage hole inlet |
-
2019
- 2019-11-27 CN CN201911184208.2A patent/CN110820701A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114645521A (en) * | 2022-03-28 | 2022-06-21 | 中电建十一局工程有限公司 | Construction method for existing reservoir emergency water drainage hole inlet |
| CN114645521B (en) * | 2022-03-28 | 2024-02-13 | 中电建十一局工程有限公司 | Construction method for import of emergency water discharge hole of existing reservoir |
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