CN108411859A - A kind of overflow weir structure construction method for mountain area hydropower station pressure forebay - Google Patents
A kind of overflow weir structure construction method for mountain area hydropower station pressure forebay Download PDFInfo
- Publication number
- CN108411859A CN108411859A CN201810221219.2A CN201810221219A CN108411859A CN 108411859 A CN108411859 A CN 108411859A CN 201810221219 A CN201810221219 A CN 201810221219A CN 108411859 A CN108411859 A CN 108411859A
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- China
- Prior art keywords
- side wall
- forebay
- flat plate
- plate bottom
- mountain area
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- 238000010276 construction Methods 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 230000002787 reinforcement Effects 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000004880 explosion Methods 0.000 claims description 6
- 239000011435 rock Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000013536 elastomeric material Substances 0.000 claims description 3
- 238000009416 shuttering Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- -1 when being 10m3/s Substances 0.000 description 1
Classifications
-
- 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
- E02B7/16—Fixed weirs; Superstructures or flash-boards therefor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Sewage (AREA)
Abstract
Tablet downflow weir is arranged in a kind of overflow weir structure construction method for mountain area hydropower station pressure forebay provided by the invention, simple in structure, convenient for construction, serrated-surface is arranged in flat plate bottom upper surface, collision is generated when making to let out under flow, is convenient for energy dissipating；Safeguard structure is set on downflow weir, when safeguard structure destroys, is conveniently replaceable, project cost is saved.
Description
Technical field
The present invention relates to a kind of hydraulic engineering downflow weirs, are to be related to one kind to press for mountain area power station more specifically
The overflow weir structure construction method of power forebay.
Background technology
Small hydropower station is the common power station form in China, and is mostly with plant without storage in small hydropower station
Main, these power stations itself do not have Regulation Function, are all to carry out generator operation by natural runoff.Not due to natural runoff
Certainty causes to need to lead water off when water is more, therefore, generally requires setting overflow weir structure.
It is that water mainly to water-drawing channel carries out advection for forebay, due to its limited volume, because
This, cannot effectively store water.Such as channel water, when being 10m3/s, water power packs hair flow 8m3/s, then must
So cause 2 flow power stations that can not utilize, it is therefore necessary to design a kind of overflow weir structure of forebay.
The overflow weir structure of forebay due to needing letdown flow, the water impact and water pressure born
Larger, therefore, it is necessary to design a kind of tablet overflow weir structure of simple and practicable forebay, carrying out flow to it leads off,
And necessary protection is carried out to weir body structure.
Invention content
The present invention in view of the above technical problems, provides a kind of overflow weir structure for mountain area hydropower station pressure forebay and repaiies
Construction method.
The present invention provides a kind of overflow weir structure construction method for mountain area hydropower station pressure forebay, which is flat
Plate weir structure, forebay include channel intake, power station irrigating gate, the forebay include left side wall, right side wall and
Antetheca, the power station irrigating gate are located on left side wall or right side wall, and the antetheca is opposite with channel intake, tablet downflow weir
It is arranged on the antetheca, the tablet downflow weir includes flat plate bottom, the first side wall and second sidewall, and the flat plate bottom is
A part for forebay antetheca, the flat plate bottom, the first side wall and second sidewall are concave-shaped structure, it is characterised in that：
The construction method includes the following steps：
S1：Basement process handles the ground residing for the antetheca, for mountain area rock foundation, using blast working,
And the plane of fracture is cleaned, the cleaning is cleaned using giant, and the rubble that explosion is generated is cleared up, later after explosion
Rock foundation face on carry out concrete base pour, embedded bar is arranged when pouring in the concrete base；
S2：Downflow weir flat plate bottom pours, on the embedded bar, binding positioning framework, and the assembling reinforcement on positioning framework,
Formed flat plate bottom framework of steel reinforcement, the embedded bar with the framework of steel reinforcement by connecting bar connecting, it is described to be connected as welding
Connect in succession, the framework of steel reinforcement generally concave-shaped structure, the two sides framework of steel reinforcement of the concave-shaped structure respectively with pressure
The reserved steel bar welding of the left side wall and right side wall of forebay, the upper surface of the concave-shaped structure is the first side wall and second
The framework of steel reinforcement on the surface of the flat plate bottom between side wall, the upper surface of the concave-shaped structure is zigzag, in order to be formed
Zigzag stereochemical structure；Shuttering, casting concrete, the concrete upper surface pours as zigzag structure, in the saw
Several first built-in fittings are set in tooth-shape structure, while being also provided with several second built-in fittings on the first side wall and second sidewall；
S3：The first safeguard structure to match with zigzag structure is made, first safeguard structure includes the first fixing piece, institute
The first fixing piece is stated with first built-in fitting to coordinate；The second protection to match with the first side wall and second sidewall is made to tie
Structure, setting and matched second fixing piece of the second built-in fitting on second safeguard structure；
S4：First safeguard structure is fixed on the zigzag structure, it is described to be fixed as the first fixing piece and described first in advance
Embedded part is fixedly connected；Second safeguard structure is fixed in the first side wall and second sidewall, it is described to be fixed as second
Fixing piece is fixedly connected with second built-in fitting.
Preferably, the concrete strength is not less than C30.
Preferably, first safeguard structure, the second safeguard structure are rubber elastomeric material.
Preferably, the side of the flat plate bottom is trapezoidal, to form the small force structure in the big top in lower part, improve
Stress performance.
Preferably, second safeguard structure can be L-shaped structure, it is set to the side of the first side wall or second sidewall
The top surface and.
It summarizes advantages of the present invention and technique effect is as follows：
Tablet overflow is arranged in a kind of overflow weir structure construction method for mountain area hydropower station pressure forebay provided by the invention
Weir, it is simple in structure, convenient for construction, serrated-surface is set in flat plate bottom upper surface, collision is generated when making to let out under flow, is convenient for
Energy dissipating；Safeguard structure is set on downflow weir, when safeguard structure destroys, is conveniently replaceable, project cost is saved.
Description of the drawings：
Fig. 1 is the forebay schematic diagram of the present invention；
Fig. 2 is tablet overflow weir structure schematic diagram；
Fig. 3 is downflow weir sectional view.
Specific implementation mode：Below in conjunction with specification specific implementation mode, describe in detail to the present invention.
The present invention provides a kind of overflow weir structure construction method for mountain area hydropower station pressure forebay 1, which is
Tablet weir structure, forebay include channel intake 2, power station irrigating gate 3, and the forebay includes left side wall 4, right side
Wall 5 and antetheca 6, the power station irrigating gate 3 are located on left side wall 4 or right side wall 5, the antetheca 6 and 2 phase of channel intake
Right, tablet downflow weir is arranged on the antetheca 6, and the tablet downflow weir includes flat plate bottom 7, the first side wall 8 and the second side
Wall 9, the flat plate bottom 7 are a part for forebay antetheca 6, and the flat plate bottom 7, the first side wall 8 and second sidewall 9 are
Concave-shaped structure, it is characterised in that：The construction method includes the following steps：
S1：Basement process handles the ground residing for the antetheca 6, for mountain area rock foundation, is applied using explosion
Work, and the plane of fracture is cleaned, the cleaning is cleaned using giant, and the rubble that explosion is generated is cleared up, later quick-fried
It carries out concrete base on rock foundation face after broken to pour, embedded bar is arranged when pouring in the concrete base；
S2：Downflow weir flat plate bottom pours, on the embedded bar, binding positioning framework, and the assembling reinforcement on positioning framework,
Formed flat plate bottom framework of steel reinforcement, the embedded bar with the framework of steel reinforcement by connecting bar connecting, it is described to be connected as welding
Connect in succession, the framework of steel reinforcement generally concave-shaped structure, the two sides framework of steel reinforcement of the concave-shaped structure respectively with pressure
The reserved steel bar welding of the left side wall 4 and right side wall 5 of forebay, the upper surface of the concave-shaped structure is 8 He of the first side wall
The framework of steel reinforcement on the surface of the flat plate bottom 7 between second sidewall 9, the upper surface of the concave-shaped structure is zigzag, so as to
In the zigzag stereochemical structure of formation；Shuttering, casting concrete, the concrete upper surface pour as zigzag structure 10,
Several first built-in fittings are set in the zigzag structure 10, while being also provided with several on the first side wall and second sidewall
Two built-in fittings；
S3：The first safeguard structure 11 to match with zigzag structure is made, first safeguard structure 11 includes the first fixation
Part, first fixing piece coordinate with first built-in fitting；Make second to match with the first side wall 8 and second sidewall 9
Safeguard structure, setting and matched second fixing piece of the second built-in fitting on second safeguard structure；
S4：First safeguard structure 11 is fixed on the zigzag structure 10, it is described to be fixed as the first fixing piece and described the
One built-in fitting is fixedly connected；Second safeguard structure 12 is fixed on the first side wall 8 and second sidewall 9, it is described solid
It is set to the second fixing piece to be fixedly connected with second built-in fitting.
Preferably, the concrete strength is not less than C30.
Preferably, first safeguard structure 11, the second safeguard structure 12 are rubber elastomeric material.
Preferably, the side of the flat plate bottom 7 is trapezoidal, to form the small force structure in the big top in lower part, carry
High stress performance.
Preferably, second safeguard structure can be L-shaped structure, it is set to the side of the first side wall or second sidewall
The top surface and.
Wherein, length may be used in order to form zigzag when binding in the framework of steel reinforcement of the concave-shaped structure
Not equal arrangement.
First built-in fitting, second built-in fitting can be pre-embedded bolt or embedded sleeve barrel.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Range is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also includes art technology
Personnel according to present inventive concept it is conceivable that equivalent technologies mean.
Claims (5)
1. a kind of overflow weir structure construction method for mountain area hydropower station pressure forebay, which is tablet weir structure, pressure
Power forebay includes channel intake, power station irrigating gate, and the forebay includes left side wall, right side wall and antetheca, the water
Power station irrigating gate is located on left side wall or right side wall, and the antetheca is opposite with channel intake, and tablet downflow weir is arranged described
On antetheca, the tablet downflow weir includes flat plate bottom, the first side wall and second sidewall, and the flat plate bottom is before forebay
A part for wall, the flat plate bottom, the first side wall and second sidewall are concave-shaped structure, it is characterised in that：The side of building
Method includes the following steps：
S1：Basement process handles the ground residing for the antetheca, for mountain area rock foundation, using blast working,
And the plane of fracture is cleaned, the cleaning is cleaned using giant, and the rubble that explosion is generated is cleared up, later after explosion
Rock foundation face on carry out concrete base pour, embedded bar is arranged when pouring in the concrete base；
S2：Downflow weir flat plate bottom pours, on the embedded bar, binding positioning framework, and the assembling reinforcement on positioning framework,
Formed flat plate bottom framework of steel reinforcement, the embedded bar with the framework of steel reinforcement by connecting bar connecting, it is described to be connected as welding
Connect in succession, the framework of steel reinforcement generally concave-shaped structure, the two sides framework of steel reinforcement of the concave-shaped structure respectively with pressure
The reserved steel bar welding of the left side wall and right side wall of forebay, the upper surface of the concave-shaped structure is the first side wall and second
The framework of steel reinforcement on the surface of the flat plate bottom between side wall, the upper surface of the concave-shaped structure is zigzag, in order to be formed
Zigzag stereochemical structure；Shuttering, casting concrete, the concrete upper surface pours as zigzag structure, in the saw
Several first built-in fittings are set in tooth-shape structure, while being also provided with several second built-in fittings on the first side wall and second sidewall；
S3：The first safeguard structure to match with zigzag structure is made, first safeguard structure includes the first fixing piece, institute
The first fixing piece is stated with first built-in fitting to coordinate；The second protection to match with the first side wall and second sidewall is made to tie
Structure, setting and matched second fixing piece of the second built-in fitting on second safeguard structure；
S4：First safeguard structure is fixed on the zigzag structure, it is described to be fixed as the first fixing piece and described first in advance
Embedded part is fixedly connected；Second safeguard structure is fixed in the first side wall and second sidewall, it is described to be fixed as second
Fixing piece is fixedly connected with second built-in fitting.
2. a kind of overflow weir structure construction method for mountain area hydropower station pressure forebay as described in claim 1, feature
It is：The concrete strength is not less than C30.
3. a kind of overflow weir structure construction method for mountain area hydropower station pressure forebay as described in claim 1, feature
It is：First safeguard structure, the second safeguard structure are rubber elastomeric material.
4. a kind of overflow weir structure construction method for mountain area hydropower station pressure forebay as described in claim 1, feature
It is：The side of the flat plate bottom is trapezoidal, to form the small force structure in the big top in lower part, improves stress performance.
5. a kind of overflow weir structure construction method for mountain area hydropower station pressure forebay as described in claim 1, feature
It is：Second safeguard structure can be L-shaped structure, be set to the side and top surface of the first side wall or second sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810221219.2A CN108411859A (en) | 2018-03-17 | 2018-03-17 | A kind of overflow weir structure construction method for mountain area hydropower station pressure forebay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810221219.2A CN108411859A (en) | 2018-03-17 | 2018-03-17 | A kind of overflow weir structure construction method for mountain area hydropower station pressure forebay |
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| Publication Number | Publication Date |
|---|---|
| CN108411859A true CN108411859A (en) | 2018-08-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810221219.2A Pending CN108411859A (en) | 2018-03-17 | 2018-03-17 | A kind of overflow weir structure construction method for mountain area hydropower station pressure forebay |
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| Country | Link |
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| CN (1) | CN108411859A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109208549A (en) * | 2018-09-26 | 2019-01-15 | 水利部交通运输部国家能源局南京水利科学研究院 | Novel fabricated landscape overflow weir |
| CN114032856A (en) * | 2021-12-18 | 2022-02-11 | 河南省水利第二工程局 | Construction method of channel and pressure forebay connecting part reinforcing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1133574A (en) * | 1997-07-24 | 1999-02-09 | Sekisui Chem Co Ltd | Disinfection tank overflow weir structure |
| CN204198484U (en) * | 2014-08-04 | 2015-03-11 | 江苏川源环保设备有限公司 | A kind of two-stage water inlet cloth weir board structure |
| CN104563267A (en) * | 2015-01-30 | 2015-04-29 | 中国水利水电科学研究院 | Compound key overflow weir type siphon well and method implemented by same |
| CN104695390A (en) * | 2015-01-30 | 2015-06-10 | 中国水利水电科学研究院 | Integrated super-discharge energy-dissipation flood-overflowing unit and method |
| CN205501958U (en) * | 2016-04-11 | 2016-08-24 | 河南省郑州水利学校 | Power station forebay water inlet protective structure |
-
2018
- 2018-03-17 CN CN201810221219.2A patent/CN108411859A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1133574A (en) * | 1997-07-24 | 1999-02-09 | Sekisui Chem Co Ltd | Disinfection tank overflow weir structure |
| CN204198484U (en) * | 2014-08-04 | 2015-03-11 | 江苏川源环保设备有限公司 | A kind of two-stage water inlet cloth weir board structure |
| CN104563267A (en) * | 2015-01-30 | 2015-04-29 | 中国水利水电科学研究院 | Compound key overflow weir type siphon well and method implemented by same |
| CN104695390A (en) * | 2015-01-30 | 2015-06-10 | 中国水利水电科学研究院 | Integrated super-discharge energy-dissipation flood-overflowing unit and method |
| CN205501958U (en) * | 2016-04-11 | 2016-08-24 | 河南省郑州水利学校 | Power station forebay water inlet protective structure |
Non-Patent Citations (1)
| Title |
|---|
| 唐天保;: "采用虹吸进水方式的电站前池设计经验剖析", 黑龙江水利科技 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109208549A (en) * | 2018-09-26 | 2019-01-15 | 水利部交通运输部国家能源局南京水利科学研究院 | Novel fabricated landscape overflow weir |
| CN109208549B (en) * | 2018-09-26 | 2020-10-23 | 水利部交通运输部国家能源局南京水利科学研究院 | Novel assembled view overflow weir |
| CN114032856A (en) * | 2021-12-18 | 2022-02-11 | 河南省水利第二工程局 | Construction method of channel and pressure forebay connecting part reinforcing device |
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Application publication date: 20180817 |