CN201943053U - Flow-guiding and flood-discharging hole structure - Google Patents
Flow-guiding and flood-discharging hole structure Download PDFInfo
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- CN201943053U CN201943053U CN2011200297128U CN201120029712U CN201943053U CN 201943053 U CN201943053 U CN 201943053U CN 2011200297128 U CN2011200297128 U CN 2011200297128U CN 201120029712 U CN201120029712 U CN 201120029712U CN 201943053 U CN201943053 U CN 201943053U
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- guiding
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- conservancy diversion
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Abstract
The utility model relates to a flow-guiding and flood-discharging hole structure. In order to solve the technical problems, the utility model provides the flow-guiding and flood-discharging hole structure, which is simple in structure and convenient to construct, aims at solving the problem that a flow guiding hole is directly reconstructed into a flood discharging hole so as to cause silt depositing at a gate groove, and simultaneously meet the working requirements for flow guiding at the earlier stage and flood discharging at the later stage. The technical scheme for solving the technical problem is that the flow-guiding and flood-discharging hole structure comprises a flow-guiding and flood-discharging tunnel and is characterized in that the two sides of an inlet of the flow-guiding and flood-discharging tunnel are respectively provided with a retaining wall which is integrated with the hole walls at the two sides; stoplog gate piers are distributed at the upstream side of the retaining wall along the direction vertical to water flow; and the two ends of the stoplog gate piers are respectively connected with the upstream ends of the two retaining walls. The flow-guiding and flood-discharging hole structure is mainly applicable to various water conservancy and hydropower engineerings.
Description
Technical field
The utility model relates to a kind of water conservancy diversion flood discharging tunnel structure, mainly is applicable to various Hydraulic and Hydro-Power Engineerings.
Background technology
In Hydraulic and Hydro-Power Engineering,, generally all need to carry out construction diversion for guaranteeing dam construction at dry land condition.Construction diversion can be divided into outside the riverbed water conservancy diversion two classes in the water conservancy diversion and riverbed substantially, and the former once blocks disconnected whole riverbed with the cofferdam, allows river pass through the water conservancy diversion outlet structure escape works riverbed outside downstream of leading; The latter goes along with sb. to guard him the part riverbed with cofferdam segmentation successively, and river is led away by restrainting narrow another part riverbed, i.e. stage diversion.Adopting diversion tunnel to carry out water conservancy diversion is the general construction period diversion mode that adopts of water conservancy diversion outside the riverbed, and the Diversion Tunnel construction later stage is usually reconstructed into nonvolatil flood-discharge tunnel, as water conservancy diversion flood discharging tunnel, water conservancy diversion flood discharge emptying tunnel etc., can reduce project total cost.The mode of this reconstruction is existence in a large number in international and domestic water power hydraulic engineering, Hydraulic and Hydro-Power Engineering such as reins in as Liujia Gorge, Xiao Langdi, infectious coryza leather, Mei Shan, the smelting of the dam, Glenn gorge (Glen Canyon) of the U.S., the Nu Lieke dam (Hypek) of the former Soviet Union, Mexican Ying Feierniluo dam (Infiernillo) and China.
Become flood discharging tunnel (there is emptying facility at dam body or other position) for reconstruction of diversion tunnel, the reconstruction form is mainly divided two classes: the one, adopt " dragon comes back " high water inlet of formula, raise flood discharging tunnel import elevation, reduce the entrance gate operating head polishing, flood discharging tunnel is only shared in posterior segment and Diversion Tunnel.Another kind is to extend some release floodwatering facilities fully to form on the basis of Diversion Tunnel, though made full use of Diversion Tunnel, higher to the high pressure gate technical requirements, and also lower water inlet causes the alluvial and the wearing and tearing of gate gate slot silt easily.
Generally in medium and small reservoir, use reconstructing into flood discharging tunnel (the emptying function of holding concurrently sometimes) on the basis of Diversion Tunnel fully, use less in the big storehouse of high dam.Medium and small reservoir height of dam is lower, and head is lower, and it is little directly to reconstruct difficulty.But built in the engineering, because the setting of import elevation is lower, gate gate slot silted by mud and sand having occurred in the runtime influences the phenomenon of gate opening/closing, and because of the desilting difficulty, has influenced the normal operation of water conservancy diversion flood discharging tunnel.Also there is not at present good solution.
Summary of the invention
The technical problems to be solved in the utility model is: taken all factors into consideration Diversion Tunnel and directly reconstructed into the flood discharging tunnel characteristics of water conservancy diversion, later stage flood discharge in earlier stage, a kind of water conservancy diversion flood discharging tunnel structure of simple in structure, easy construction is provided, directly reconstruct into the gate gate slot silt alluvial problem that flood discharging tunnel faces, the job requirement of water conservancy diversion and later stage flood discharge of satisfied early stage simultaneously to solve Diversion Tunnel.
The technical scheme that the utility model adopted is: water conservancy diversion flood discharging tunnel structure, comprise the water conservancy diversion flood-discharge tunnel of holding concurrently, it is characterized in that: the described water conservancy diversion flood-discharge tunnel import both sides of holding concurrently respectively are provided with a barricade that is connected as a single entity with both sides Dong Bi respectively, the barricade upstream side is arranged the stoplog gate pier along Transverse to the flow direction, and these stoplog gate pier two ends are connected with two barricade upstream extremities respectively.
Described stoplog gate pier is by the abutment pier that is positioned at two ends and is connected with two barricades respectively, and between two abutment piers and the middle pier of evenly arranging form, corresponding position is offered the groove that is used to place stoplog on described abutment pier and the middle pier.
Two barricade flares are arranged, and its big opening one end is towards the upstream.
Described barricade is identical with stoplog gate pier crest level, and is higher than the silt elevation of reservoir design reference period.
The beneficial effects of the utility model are: the utility model is in conjunction with the work characteristics of flood discharging tunnel water conservancy diversion in early stage, later stage flood discharge, in the water conservancy diversion flood-discharge tunnel import both sides of holding concurrently a barricade that is connected as a single entity with both sides Dong Bi respectively is set respectively, the barricade upstream side is arranged the stoplog gate pier along Transverse to the flow direction, and these stoplog gate pier two ends are connected with two barricade upstream extremities respectively; The construction diversion phase, do not place stoplog in the stoplog gate pier, the slit flow of current between the stoplog gate pier crossed and entered the water conservancy diversion flood-discharge tunnel of holding concurrently; After the water conservancy diversion phase finishes, place stoplog in the stoplog gate pier and form Stoplog gate and bring into play the husky effect of sediment trapping bank retaining jointly, solved the gate gate slot silt alluvial problem that this kind reconstruction mode faces, satisfied the job requirement of water conservancy diversion, later stage flood discharge in earlier stage simultaneously with two barricades.
Description of drawings
Fig. 1 is a layout plan of the present utility model.
Fig. 2 is the longitudinal plan after the utility model is arranged stoplog.
The specific embodiment
As shown in Figure 1, present embodiment comprises the water conservancy diversion flood-discharge tunnel 1 of holding concurrently, and its import both sides respectively are provided with 2, two barricade 2 flares of barricade that are connected as a single entity with both sides Dong Bi respectively and arrange, and its big opening one end is towards the upstream; Barricade 2 upstream sides are arranged the stoplog gate pier along Transverse to the flow direction, and both crest levels are identical, all are higher than the silt elevation of reservoir design reference period, to realize the sediment trapping function; In this example, described stoplog gate pier is by the abutment pier 3 that is positioned at two ends, and pier 4 is formed between two abutment piers 3 and in evenly spaced apart, to reduce the stoplog span, guarantee the engineering general safety, corresponding position is offered groove (can construct and finish) on described abutment pier 3 and the middle pier 4 before tunnel diversion, is used to place stoplog, and wherein two abutment piers 3 are connected with two barricade 2 upstream extremities respectively.In the water conservancy diversion phase, stoplog is not placed at stoplog gate pier place, and current can enter water conservancy diversion through the space between abutment pier 3 and the middle pier 4 and hold concurrently in the flood-discharge tunnel 1, realizes water conservancy diversion.
After the water conservancy diversion phase finishes and enters the runtime, the prefabricated stoplog of finishing before the lifting of stoplog gate pier place, form Stoplog gate 5, as shown in Figure 2, this Stoplog gate is used to tackle the hold concurrently silt in flood-discharge tunnel 1 dead ahead of water conservancy diversion, 2 silts that are used to tackle both sides of two barricades are to avoid the generation of Service gate gate slot silting phenomenon.Because Stoplog gate 5 is formed by stacking one by one by a plurality of stoplogs, so its overall height and planar dimension can be determined according to needs such as retaining sand, influent stream, Stability Analysis of Structures; In addition, need, be equipped with built-in suspension ring on the per pass stoplog for ease of later stage stoplog lifting and maintenance.
In addition, stoplog gate pier height can design allowance, and according to the silt situation of reality, perhaps reservoir emptying needs, and increases or minimizing stoplog number by long-armed crane, brings into play it and utilizes than flexible characteristic.
Claims (4)
1. water conservancy diversion flood discharging tunnel structure, comprise the water conservancy diversion flood-discharge tunnel (1) of holding concurrently, it is characterized in that: described water conservancy diversion flood-discharge tunnel (1) the import both sides of holding concurrently respectively are provided with a barricade (2) that is connected as a single entity with both sides Dong Bi respectively, barricade (2) upstream side is arranged the stoplog gate pier along Transverse to the flow direction, and these stoplog gate pier two ends are connected with two barricades (2) upstream extremity respectively.
2. water conservancy diversion flood discharging tunnel structure according to claim 1, it is characterized in that: described stoplog gate pier is by the abutment pier (3) that is positioned at two ends and is connected with two barricades (2) respectively, and being arranged between two abutment piers (3) and the pier of evenly arranging (4) composition, described abutment pier (3) He Zhongdun (4) goes up corresponding position and offers the groove that is used to place stoplog.
3. water conservancy diversion flood discharging tunnel structure according to claim 1 is characterized in that: two barricades (2) flare is arranged, and its big opening one end is towards the upstream.
4. water conservancy diversion flood discharging tunnel structure according to claim 1 is characterized in that: described barricade (2) is identical with stoplog gate pier crest level, and is higher than the silt elevation of reservoir design reference period.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200297128U CN201943053U (en) | 2011-01-24 | 2011-01-24 | Flow-guiding and flood-discharging hole structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200297128U CN201943053U (en) | 2011-01-24 | 2011-01-24 | Flow-guiding and flood-discharging hole structure |
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| Publication Number | Publication Date |
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| CN201943053U true CN201943053U (en) | 2011-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200297128U Expired - Lifetime CN201943053U (en) | 2011-01-24 | 2011-01-24 | Flow-guiding and flood-discharging hole structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787586A (en) * | 2012-08-22 | 2012-11-21 | 黄河勘测规划设计有限公司 | Arrangement method for combining second-stage diversion building with sand discharge gate |
| CN103290804A (en) * | 2013-06-05 | 2013-09-11 | 中国水电顾问集团贵阳勘测设计研究院 | Method and structure for providing downstream ecological flow after gate locking of stream guidance water release structure |
| CN103410130A (en) * | 2013-08-13 | 2013-11-27 | 中国水电顾问集团成都勘测设计研究院 | Multi-purpose tunnel arrangement structure |
| CN107100222A (en) * | 2017-05-25 | 2017-08-29 | 武汉大学 | Construction diversion tunnel bottom gate way silt sand cleaning device |
| CN109629507A (en) * | 2019-01-04 | 2019-04-16 | 河海大学 | A method of improving diffused and shunts tank waterpower fluidised form |
-
2011
- 2011-01-24 CN CN2011200297128U patent/CN201943053U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787586A (en) * | 2012-08-22 | 2012-11-21 | 黄河勘测规划设计有限公司 | Arrangement method for combining second-stage diversion building with sand discharge gate |
| CN102787586B (en) * | 2012-08-22 | 2014-04-16 | 黄河勘测规划设计有限公司 | Arrangement method for combining second-stage diversion building with sand discharge gate |
| CN103290804A (en) * | 2013-06-05 | 2013-09-11 | 中国水电顾问集团贵阳勘测设计研究院 | Method and structure for providing downstream ecological flow after gate locking of stream guidance water release structure |
| CN103290804B (en) * | 2013-06-05 | 2016-01-20 | 中国水电顾问集团贵阳勘测设计研究院 | Method and the structure of downstream ecology flow are provided after lock under water conservancy diversion outlet structure escape works |
| CN103410130A (en) * | 2013-08-13 | 2013-11-27 | 中国水电顾问集团成都勘测设计研究院 | Multi-purpose tunnel arrangement structure |
| CN103410130B (en) * | 2013-08-13 | 2015-06-17 | 中国电建集团成都勘测设计研究院有限公司 | Multi-purpose tunnel arrangement structure |
| CN107100222A (en) * | 2017-05-25 | 2017-08-29 | 武汉大学 | Construction diversion tunnel bottom gate way silt sand cleaning device |
| CN107100222B (en) * | 2017-05-25 | 2022-05-13 | 武汉大学 | Construction diversion tunnel bottom gate way silt sand cleaning device |
| CN109629507A (en) * | 2019-01-04 | 2019-04-16 | 河海大学 | A method of improving diffused and shunts tank waterpower fluidised form |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110824 |