CN202450491U - Open type flood discharge structure at dam crest - Google Patents
Open type flood discharge structure at dam crest Download PDFInfo
- Publication number
- CN202450491U CN202450491U CN201220025368XU CN201220025368U CN202450491U CN 202450491 U CN202450491 U CN 202450491U CN 201220025368X U CN201220025368X U CN 201220025368XU CN 201220025368 U CN201220025368 U CN 201220025368U CN 202450491 U CN202450491 U CN 202450491U
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- flood discharge
- open type
- dam crest
- discharge structure
- reinforced concrete
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Abstract
The utility model discloses an open type flood discharge structure at a dam crest. The structure comprises a weir body and a flood discharge chute. The upstream face of the weir body is connected with a reinforced concrete panel, a bottom plate of the flood discharge chute is a reinforced concrete bottom plate, the weir body and the reinforced concrete panel are provided with A type deformation joints and the reinforced concrete bottom plate is provided with B type deformation joints. The open type flood discharge structure at the dam crest provided by the utility model solves the problem that both sides of the damsite are steeper and flood discharge buildings of a concrete face rock fill dam are constructed in a condition that no suitable low-lying bealocks can be used to construct a shore type spillway. Flow at the joint of the outlet of the spillway and a downstream riverway is smooth. The excavated volume of cubic meters of earth and stone in construction is small Investment on the spillway accounts for a small proportion in investment of the whole pivot. The economic indicator of the project is good. High slopes do not need to be processed, the excavated area is small and no large area damage to environment is caused. According to the open type flood discharge structure at the dam crest provided by the utility model, local materials can be used, and the open type flood discharge structure at the dam crest is simple in structure and has the advantages of economical investment, rapid construction, small impact on environment and strong adaptation.
Description
Technical field
the utility model relates to a kind of open type dam crest flood discharge structure, and particularly a kind of rigidity and the excessive big vast structure of the flexible open type dam crest that combines that is suitable for the sedimentation of loose rock dam rockfill belongs to the reservoir spillway technical field.
Background technology
in design in the past, water retaining structure is the key water control project of CFRD, and its flood releasing structure is to adopt Bank-run Spillway mostly.But most Reservoir region do not have suitable low-lying bealock to build the Bank-run Spillway flood discharge, and dam site two sides landform is also steeper.See from the engineering layout; The bank flood spillway is let out groove location often to be needed to turn; And the bend current of high flow rate and water impact ripple can only combine hydraulic model test to solve through empirical formula now; The current that flood spillway flow condition and flood spillway outlet and downstream river course are connected are not very smooth and easy, and hinge arranges that difficulty is big.As still to build the bank flood spillway, and can cause the earthwork evacuation amount big, flood spillway makes an investment in the investment of whole hinge that ratio is big, and engineering economic index is poor, and simultaneously, the high slope intractability is big, and excavation area increases big to environmental disruption.
Summary of the invention
The purpose of
the utility model is, a kind of open type dam crest flood discharge structure is provided.Be adapted at steeper storehouse bank, and do not have low-lying bealock can be provided with under the orographic condition of flood spillway, make up the structure of CFRD.
The technical scheme of the utility model
A kind of open type dam crest flood discharge structure of
the utility model is: this structure comprises weir body and flood discharge chute; The upstream face of weir body is connected with the steel concrete panel, and the base plate of flood discharge chute is a reinforced concrete structure, and reinforced concrete floor is provided with the category-A deformation joint, and steel concrete panel and weir body are provided with the category-B deformation joint.
In
aforementioned open type dam crest flood discharge structure, be followed successively by weak concrete bed course, bedding material, transition material and main stockpile below the said reinforced concrete earth bank body; Be followed successively by weak concrete bed course and dam master rockfill below the reinforced concrete floor.
In
aforementioned open type dam crest flood discharge structure; Be provided with asphalt emulsion in the said category-A deformation joint; The middle part of category-A deformation joint is provided with rubber fastening band, and the bottom of category-A deformation joint is provided with the compound W type of GBW copper seal, and the copper sheet sealing is divided into PVC pad and cement mortar bedding cushion.
In
aforementioned open type dam crest flood discharge structure, said waterstop is 651 rubber strips; The PVC pad is 500 * 6mm rectangular washer; W type copper seal is the GBW composite members; Cement mortar is the C20 mortar, and thickness is 100mm.
In
aforementioned open type dam crest flood discharge structure, be provided with asphalt emulsion in the said category-B deformation joint, the middle part of category-B deformation joint is provided with T shape copper sheet sealing, and category-B seam bottom is provided with the impregnate with bitumen plank.
In
aforementioned open type dam crest flood discharge structure, the thickness of said impregnate with bitumen plank is 25mm; T type copper seal is the GBW composite members.
In
aforementioned open type dam crest flood discharge structure, the thickness of said asphalt emulsion is 3mm.
compared with prior art, it is steeper that the utility model has solved dam site two sides landform, do not have suitable low-lying bealock to build under the condition of Bank-run Spillway in Reservoir region, builds CFRD.The utility model adopts CFRD, in hydraulic architecture, can gather materials on the spot, and structural configuration is simple, little to ambient influnence.It is fast, low and to characteristics such as landform geological conditions adaptive capacity are strong to dam foundation requirement to have reduced investment, construction.The flood spillway of the utility model is let out groove location not to be needed to turn; Design process need not to combine hydraulic model test to obtain satisfied technical scheme through empirical formula; The current that flood spillway flow condition and flood spillway outlet and downstream river course are connected are smooth and easy, and hinge arranges that difficulty is little.The earthwork evacuation amount is little in the construction, and flood spillway makes an investment in the investment of whole hinge that ratio is little, and engineering economic index is good, need not high slope is handled, and excavation area is little, can not cause extensive damage to environment.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the section structure sketch map of the utility model;
Fig. 3 is the structural representation of category-A deformation joint;
Fig. 4 is the structural representation of category-B deformation joint.
Being labeled as in
accompanying drawing: 1-weir body, 2-flood discharge chute, 3-dam steel concrete panel, 4-flood discharge chute base plate, 5-A class deformation joint; 6-B class deformation joint, 7-weak concrete bed course, 8-bedding material, 9-transition material; 10-master's rockfill, 11-asphalt emulsion, 12-waterstop, 13-W type copper seal; 14-PVC pad, 15-cement mortar bedding cushion, 16-T type copper seal, 17-impregnate with bitumen plank.
The specific embodiment
are further described the utility model below in conjunction with accompanying drawing and embodiment, but not as the foundation to the utility model restriction.
embodiment.
A kind of open type dam crest flood discharge structure sketch map of
the utility model is as shown in Figure 1, and this structure comprises weir body 1 and flood discharge chute 2; It is characterized in that: the upstream face of weir body 1 is connected with steel concrete panel 3, and the downstream face of weir body 1 is connected with reinforced concrete floor 4, and steel concrete panel 3 is provided with category-A deformation joint 5 with weir body 1, and reinforced concrete floor 4 is provided with category-B deformation joint 6.As shown in Figure 2, be provided with weak concrete bed course 7 below steel concrete panel 3 and the weir body, be provided with bedding material 8, transition material 9 and main rockfill 10 successively below the weak concrete bed course 7.As shown in Figure 3; Be provided with the thick asphalt emulsion 11 of 3mm in the said category-A deformation joint 5; The middle part of category-A deformation joint 5 is provided with 651 rubber fastening bands 12, and the bottom of category-A deformation joint 5 is provided with W type copper seal 13, is provided with 500 * 6mm rectangle PVC pad 14 below the W type copper seal 13; Be provided with C20 cement mortar bedding cushion 15 below the PVC pad 14, thickness is 100mm.As shown in Figure 4, be provided with the thick asphalt emulsion 11 of 3mm in the said category-B deformation joint 6, the middle part of category-B deformation joint 6 is provided with the compound T shape of GBW copper seal 16, and the bottom of category-B deformation joint 6 is provided with the impregnate with bitumen plank 18 that thickness is 25mm.
Supplementary notes to the utility model
the utility model comprises overflow weir body 1 and flood discharge chute 2; Steel concrete panel 3 and deformation joint 5, deformation joint 6; Body 1 upstream face in weir must be linked to be integral body with steel concrete panel 3; The weir type can be Kuan Dingyan, practical weir or hump weir, looks the engineering flood discharge and need and decide.
are provided with in length and breadth to settlement joint for adapting to rockfill sedimentation overflow weir downstream, and the copper sheet sealing is set in the seam.
Under
flood spillway base plate, low-strength concrete bed course 7 is set on rockfill, disperses the pressure of 4 pairs of main rockfills 10 of reinforced concrete floor at 2 ends of flood discharge chute, reduce the influence of main rockfill 10 sedimentations flood discharge chute 2.
This is suitable for
novel employing weak concrete bed course, suitable deformation joint and sealing pattern is set; At the CFRD dam crest flood spillway is set; Make engineering safety, be suitable for, economy, current is smooth and easy, little to ambient influnence; Remedy the blank that earth and rockfill dam can not be provided with the crest spillway, in can building adaptable across CFRD.
Claims (7)
1. an open type dam crest flood discharge structure comprises weir body (1) and flood discharge chute (2); It is characterized in that: the upstream face of weir body (1) is connected with the steel concrete panel (3) of dam; Downstream face is connected with flood discharge chute (2); The bottom land of flood discharge chute (2) is reinforced concrete structure (4); Weir body (1) and steel concrete panel (3) are provided with category-A deformation joint (5), and reinforced concrete floor (4) is provided with category-B deformation joint (6).
2. according to the said open type dam crest of claim 1 flood discharge structure, it is characterized in that: be provided with weak concrete bed course (7) below the said weir body (1), be followed successively by bedding material (8), transition material (9) and main stockpile (10) below the blinding concrete (7); Be followed successively by weak concrete bed course (7) and main stockpile (10) below the reinforced concrete floor (4).
3. according to the said open type dam crest of claim 1 flood discharge structure; It is characterized in that: be provided with asphalt emulsion (11) in the said category-A deformation joint (5); The middle part is provided with rubber fastening band (12); The bottom is provided with " W " type copper sheet sealing (13), and copper sheet sealing (13) bottom is provided with PVC pad (14), and PVC pad (14) bottom is provided with cement mortar bedding cushion (15).
4. according to the said open type dam crest of claim 3 flood discharge structure, it is characterized in that: said waterstop (12) is 651 rubber strips; W type copper seal (13) is the GBW composite members; PVC pad (14) is 500 * 6mm rectangular washer; Cement mortar bedding cushion (15) is the C20 mortar, and thickness is 100mm.
5. according to the said open type dam crest of claim 1 flood discharge structure, it is characterized in that: said category-B deformation joint (6) internal upper part is provided with asphalt emulsion (11), and the middle part is provided with T type copper sheet sealing (16), and the bottom is provided with pitch plank (17).
6. according to the said open type dam crest of claim 5 flood discharge structure, it is characterized in that: said T type copper seal (16) is the GBW composite members; The thickness of impregnate with bitumen plank (17) is 25mm.
7. according to claim 3 or 5 said open type dam crest flood discharge structures, it is characterized in that: the thickness of said asphalt emulsion (11) is 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220025368XU CN202450491U (en) | 2012-01-19 | 2012-01-19 | Open type flood discharge structure at dam crest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220025368XU CN202450491U (en) | 2012-01-19 | 2012-01-19 | Open type flood discharge structure at dam crest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202450491U true CN202450491U (en) | 2012-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220025368XU Expired - Lifetime CN202450491U (en) | 2012-01-19 | 2012-01-19 | Open type flood discharge structure at dam crest |
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| Country | Link |
|---|---|
| CN (1) | CN202450491U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866742A (en) * | 2014-02-26 | 2014-06-18 | 韦有学 | Rolling dam |
| CN103938585A (en) * | 2014-04-22 | 2014-07-23 | 黄河勘测规划设计有限公司 | Arrangement structure of mixed dam composed of earth dams and gravity dam |
| CN107190707A (en) * | 2017-07-24 | 2017-09-22 | 重庆交通大学 | Karst funnel reservoir and its concrete slab enrockment plugging structure and method of construction |
| CN110387861A (en) * | 2019-07-29 | 2019-10-29 | 中水北方勘测设计研究有限责任公司 | It is a kind of for the earth rock cofferdam remodeling method for leading over-level flood off of meeting an urgent need |
| CN110453655A (en) * | 2019-08-27 | 2019-11-15 | 上海勘测设计研究院有限公司 | Connect the anti-settling structure of spillway and face dam |
-
2012
- 2012-01-19 CN CN201220025368XU patent/CN202450491U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866742A (en) * | 2014-02-26 | 2014-06-18 | 韦有学 | Rolling dam |
| CN103938585A (en) * | 2014-04-22 | 2014-07-23 | 黄河勘测规划设计有限公司 | Arrangement structure of mixed dam composed of earth dams and gravity dam |
| CN107190707A (en) * | 2017-07-24 | 2017-09-22 | 重庆交通大学 | Karst funnel reservoir and its concrete slab enrockment plugging structure and method of construction |
| CN110387861A (en) * | 2019-07-29 | 2019-10-29 | 中水北方勘测设计研究有限责任公司 | It is a kind of for the earth rock cofferdam remodeling method for leading over-level flood off of meeting an urgent need |
| CN110453655A (en) * | 2019-08-27 | 2019-11-15 | 上海勘测设计研究院有限公司 | Connect the anti-settling structure of spillway and face dam |
| CN110453655B (en) * | 2019-08-27 | 2024-06-11 | 上海勘测设计研究院有限公司 | Anti-sedimentation structure for connecting spillway and panel dam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120926 |
|
| CX01 | Expiry of patent term |