CN105625281A - Construction method for weir flow combined energy dissipation device - Google Patents
Construction method for weir flow combined energy dissipation device Download PDFInfo
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- CN105625281A CN105625281A CN201610053306.2A CN201610053306A CN105625281A CN 105625281 A CN105625281 A CN 105625281A CN 201610053306 A CN201610053306 A CN 201610053306A CN 105625281 A CN105625281 A CN 105625281A
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- energy dissipating
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- 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
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Abstract
The invention provides a construction method for a weir flow combined energy dissipation device. The weir flow combined energy dissipation device comprises a weir main body structure, an energy dissipation sill device, a tail sill device, downstream energy dissipation holes and energy dissipation resistance piles arranged in the energy dissipation holes. Through the construction method, a weir main body, energy dissipation sills, tail sills, the energy dissipation holes and the energy dissipation resistance piles are constructed correspondingly according to requirements, and in this way, simple and convenient construction of the weir flow combined energy dissipation device is achieved, the construction efficiency is improved, and finally multistage combined energy dissipation effect of the weir flow combined energy dissipation device on a water body is achieved.
Description
Technical field
The present invention relates to the construction method of a kind of waterpower energy dissipator, in particular to the construction method of a kind of weir flow combined energy dissipation device.
Background technology
Weir flow (weirflow) is after arranging barrier (weir) in open channel, the current phenomenon that unhurried current is crossed through the overflow of barrier top, weir flow is widely used in hydraulic engineering, diversion works, power plant project all have existence, but owing to current are through weir body, flow velocity is bigger, if energy dissipating not in time, then the hydraulic facility in downstream being produced bigger harm, especially when downstream configurations is thin-lift concrete structure or sandy soil structure, then this harm then can be strengthened.
Currently for the existing various structures form of the energy-dissipating structure in hydraulic engineering and construction method, but its construction is complex, and effect of energy dissipation is also poor, therefore, it is necessary to study the construction method of a kind of combined energy dissipation device suitable in weir flow structure.
Summary of the invention
The present invention provides the construction method of a kind of weir flow combined energy dissipation device, and this weir flow combined energy dissipation device includes weir agent structure, energy dissipating bank device, tail bank device, downstream dissipator of energy hole structure, and its concrete construction method is:
1) construction of weir main body is carried out according to design drawing, and N row's energy dissipating bank reserved steel bar is set on the flow surface of weir main body, described N is the integer more than 2, arranges last person's bank reserved steel bar at weir agent structure toe, and described weir main body adopts reinforced concrete structure;
2) construction of energy dissipating bank carries out concreting by installation energy dissipating bank template on energy dissipating bank reserved steel bar, and maintenance, often arranging described energy dissipating bank structure is M, M is the integer more than 3, Transverse to the flow direction, the spacing of the energy dissipating bank often arranged is equal, along water (flow) direction, described spacing increases successively, thus realizing the diffusion dissipation of water energy;
3) at weir agent structure toe, carrying out concreting maintenance by installation tail bank template on tail bank reserved steel bar, described tail bank is arranged in order, and the half of the described spacing that its spacing is the energy dissipating bank that the most lower row is arranged, thus realizing the contraction energy dissipating of energy dissipator;
4) construction of energy dissipating hole is carried out in tail bank downstream, energy dissipating hole dia is 1/5 times of weir height, and hole is that arc is arranged, the hole degree of depth is the 1/10 of weir height, current through energy dissipating bank and tail bank collide energy dissipating in energy dissipating hole, for increasing effect of energy dissipation, the construction of energy dissipating hole arranges two rows chute
5) some energy dissipating resistance pileworks are installed in the chute in energy dissipating hole, energy dissipating resistance stake is arranged as two rows, often arrangement is set to 4, and often 4 energy dissipating resistance stake along the circumferential direction unequal intervals of row are arranged, two rows energy dissipating resistance stake is staggeredly arranged, not etc., the energy dissipating resistance pile length that each energy dissipating resistance stake is adjacent is all not unequal for eight energy dissipating resistance pile lengths.
Described energy dissipating bank structure is arc or dentalation.
Described energy dissipating hole be arranged as quincuncial arrangement.
Described energy dissipating resistance stake is steel construction.
By above-mentioned construction method, it is achieved the easy construction of weir flow combined energy dissipation device, improve efficiency of construction, finally realize the weir flow combined energy dissipation device effect to water body multi-stage combination energy dissipating.
Accompanying drawing explanation
Fig. 1 is the sectional view of weir flow combined energy dissipation device;
Fig. 2 is the top view of weir flow combined energy dissipation device;
Fig. 3 is the construction process figure of weir flow combined energy dissipation device.
Description of reference numerals: 1 weir main body, 2 energy dissipating banks, 3 tail banks, 4 energy dissipating holes, 5 energy dissipating resistance stakes.
Detailed description of the invention
The present invention provides the construction method of a kind of weir flow combined energy dissipation device, and this weir flow combined energy dissipation device includes weir main body 1, energy dissipating bank 2 device, tail bank 3 device, downstream dissipator of energy hole 4 structure, and its concrete construction method is:
1) construction of weir main body 1 is carried out according to design drawing, and N row's energy dissipating bank 2 reserved steel bar is set on the flow surface of weir main body 1, described N is the integer more than 2, arranges last person's bank 3 reserved steel bar at weir main body 1 structure toe, and described weir main body 1 adopts reinforced concrete structure;
2) energy dissipating bank 2 is constructed and is carried out concreting by installation energy dissipating bank 2 template on energy dissipating bank 2 reserved steel bar, and maintenance, often arranging described energy dissipating bank structure is M, and M is the integer more than 3, Transverse to the flow direction, the spacing of the energy dissipating bank 2 often arranged is equal, and along water (flow) direction, described spacing increases successively, thus realizing the diffusion dissipation of water energy, described Transverse to the flow direction, the spacing of the energy dissipating bank 2 often arranged is equal, namely often arranges the spacing between the energy dissipating bank of setting always equal; Along water (flow) direction, described spacing increases successively, and namely along water (flow) direction, the spacing between the energy dissipating bank of next row is always greater than the spacing arranged up and down between energy dissipating bank;
3) at weir main body 1 structure toe, carrying out concreting maintenance by installation tail bank 3 template on tail bank 3 reserved steel bar, described tail bank 3 is arranged in order, and the half of the described spacing that its spacing is the energy dissipating bank 2 that the most lower row is arranged, thus realizing the contraction energy dissipating of energy dissipator;
4) carry out energy dissipating hole 4 in tail bank 3 downstream to construct, energy dissipating hole 4 diameter is 1/5 times of weir body 1 height, and hole is that arc is arranged, the hole degree of depth is the 1/10 of weir body 1 height, current through energy dissipating bank 2 and tail bank 3 collide energy dissipating in energy dissipating hole 4, for increasing effect of energy dissipation, energy dissipating hole 4 construction arranges two rows chute
5) some energy dissipating resistance stake 5 structures are installed in the chute in energy dissipating hole 4, energy dissipating resistance stake 5 is arranged as two rows, often arrangement is set to 4, and often 4 energy dissipating resistance stake 5 along the circumferential direction unequal intervals of row are arranged, two rows energy dissipating resistance stake 5 is staggeredly arranged, not etc., energy dissipating resistance stake 5 length that each energy dissipating resistance stake 5 is adjacent is all not unequal for eight energy dissipating resistance stake 5 length.
Described Transverse to the flow direction, the spacing of the energy dissipating bank 2 often arranged is equal, namely often arranges the spacing between the energy dissipating bank 2 of setting always equal; Along water (flow) direction, described spacing increases successively, and namely along water (flow) direction, the spacing between the energy dissipating bank 2 of next row is always greater than the spacing between upper row's energy dissipating bank 2.
Often row's energy dissipating bank 2 is from the both sides of weir main body to center, energy dissipating bank 2 volume is sequentially reduced, tail bank 3 increases from the both sides of weir main body 1 successively to central volume, when energy dissipating bank 2 number is odd number, one energy dissipating bank 2 volume at the center often arranging energy dissipating bank 2 is minimum, when energy dissipating bank 2 number is even number, two energy dissipating bank 2 volumes often arranging energy dissipating bank 2 center are minimum, when tail bank 3 number is even number, one tail bank 3 volume at the center of tail bank 3 is maximum, when tail bank 3 number is even number, two tail bank 3 volumes at tail bank 3 center are maximum.
Described energy dissipating bank 2 structure is arc or dentalation.
Described energy dissipating hole 4 be arranged as quincuncial arrangement.
Described energy dissipating resistance stake 5 is steel construction.
These are only the preferred embodiments of the present invention, the technical scheme of any equivalent replacement without departing from present inventive concept is all in protection scope of the present invention.
Claims (4)
1. a construction method for weir flow combined energy dissipation device, this weir flow combined energy dissipation device includes weir agent structure, energy dissipating bank device, tail bank device, downstream dissipator of energy hole structure, and its concrete construction method is:
1) construction of weir main body is carried out according to design drawing, and N row's energy dissipating bank reserved steel bar is set on the flow surface of weir main body, described N is the integer more than 2, arranges last person's bank reserved steel bar at weir agent structure toe, and described weir main body adopts reinforced concrete structure;
2) construction of energy dissipating bank carries out concreting by installation energy dissipating bank template on energy dissipating bank reserved steel bar, and maintenance, often arranging described energy dissipating bank structure is M, M is the integer more than 3, Transverse to the flow direction, the spacing of the energy dissipating bank often arranged is equal, along water (flow) direction, described spacing increases successively, thus realizing the diffusion dissipation of water energy;
3) at weir agent structure toe, carrying out concreting maintenance by installation tail bank template on tail bank reserved steel bar, described tail bank is arranged in order, and the half of the described spacing that its spacing is the energy dissipating bank that the most lower row is arranged, thus realizing the contraction energy dissipating of energy dissipator;
4) construction of energy dissipating hole is carried out in tail bank downstream, energy dissipating hole dia is 1/5 times of weir height, and hole is that arc is arranged, the hole degree of depth is the 1/10 of weir height, current through energy dissipating bank and tail bank collide energy dissipating in energy dissipating hole, for increasing effect of energy dissipation, the construction of energy dissipating hole arranges two rows chute
5) some energy dissipating resistance pileworks are installed in the chute in energy dissipating hole, energy dissipating resistance stake is arranged as two rows, often arrangement is set to 4, and often 4 energy dissipating resistance stake along the circumferential direction unequal intervals of row are arranged, two rows energy dissipating resistance stake is staggeredly arranged, not etc., the energy dissipating resistance pile length that each energy dissipating resistance stake is adjacent is all not unequal for eight energy dissipating resistance pile lengths.
2. weir flow combined energy dissipation device as claimed in claim 1, it is characterised in that: described energy dissipating bank structure can be arc or dentalation.
3. weir flow combined energy dissipation device as claimed in claim 2, it is characterised in that: the layout in described energy dissipating hole can be quincuncial arrangement.
4. weir flow combined energy dissipation device as claimed in claim 3, it is characterised in that: described energy dissipating resistance stake can be steel construction.
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| CN201610053306.2A CN105625281B (en) | 2016-01-27 | 2016-01-27 | A kind of construction method of weir flow combined energy dissipation device |
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| CN201610053306.2A CN105625281B (en) | 2016-01-27 | 2016-01-27 | A kind of construction method of weir flow combined energy dissipation device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288105A (en) * | 2017-07-11 | 2017-10-24 | 浙江省水利水电勘测设计院 | A kind of special-shaped block energy-dissipating structure |
| CN108442341A (en) * | 2018-05-21 | 2018-08-24 | 河南罡源电子科技有限公司 | A kind of hydraulic engineering energy dissipating hole |
| CN109281794A (en) * | 2018-11-13 | 2019-01-29 | 三峡大学 | A kind of sea wall energy dissipating electricity generation system and energy dissipating electricity-generating method |
| CN115045240A (en) * | 2022-07-12 | 2022-09-13 | 中铁十四局集团第二工程有限公司 | Weir flow energy dissipation structure and construction method |
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| CN203947445U (en) * | 2013-07-11 | 2014-11-19 | 安徽理工大学 | One is chosen stream and jet combined energy dissipating experimental rig |
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2016
- 2016-01-27 CN CN201610053306.2A patent/CN105625281B/en not_active Expired - Fee Related
Patent Citations (6)
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288105A (en) * | 2017-07-11 | 2017-10-24 | 浙江省水利水电勘测设计院 | A kind of special-shaped block energy-dissipating structure |
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| CN109281794A (en) * | 2018-11-13 | 2019-01-29 | 三峡大学 | A kind of sea wall energy dissipating electricity generation system and energy dissipating electricity-generating method |
| CN109281794B (en) * | 2018-11-13 | 2024-03-29 | 三峡大学 | Energy dissipation power generation system and energy dissipation power generation method for seawall |
| CN115045240A (en) * | 2022-07-12 | 2022-09-13 | 中铁十四局集团第二工程有限公司 | Weir flow energy dissipation structure and construction method |
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| CN105625281B (en) | 2018-10-23 |
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