CN207776061U - Flood discharge aqueduct structure under the conditions of soft base geology - Google Patents
Flood discharge aqueduct structure under the conditions of soft base geology Download PDFInfo
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- CN207776061U CN207776061U CN201721610165.6U CN201721610165U CN207776061U CN 207776061 U CN207776061 U CN 207776061U CN 201721610165 U CN201721610165 U CN 201721610165U CN 207776061 U CN207776061 U CN 207776061U
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Abstract
It is disclosed by the utility model be hydraulic and hydroelectric engineering field a kind of soft base geology under the conditions of flood discharge aqueduct structure, including from upstream toward the inclined groove body in downstream, the width of the groove body tilting section gradually increases from upstream toward downstream.The utility model has the beneficial effects that：By transforming the groove body of traditional fixed width as width from upstream toward the gradual increased diffused groove body in downstream, the structure can make flow with the increase of diffuser plane width, flow depth is gradually reduced, flow energy accordingly reduces, to reduce its impact force to downstream river course, coordinate the effect of the facilities such as energy dissipating step, Energy-Dissipation Pond and water-blocking bank again, further decrease the ability of flow, the adverse effect that flow washes away downstream river course is eliminated, and total has many advantages, such as easy for construction, with good investment and short time limit.
Description
Technical field
The utility model is related to the flood discharge aqueduct knots under the conditions of hydraulic and hydroelectric engineering field more particularly to a kind of soft base geology
Structure.
Background technology
When flood discharge facility being arranged under the geological conditions of gobi, since geology is than relatively soft, flow is washed away for a long time to be easy to draw
Soil erosion is played, environment is polluted, facility is even resulted in when serious and the accidents such as is collapsed, therefore, on some ground with height fall
Side needs that some flood discharge aqueducts are arranged, and to reduce the scouring force of flow, ensures the safety of downstream flood discharge facility.Existing drain off floodwaters is crossed
The inclined groove body in one end is usually used to connect upstream and downstream in slot, some Xiao energy pond is arranged at groove body lower exit or chooses bank
Equal energy-dissipating installations, to have the function that slow down current scour power.Practical application proves that these structures slow down work to the energy dissipating of flow
With extremely limited because these structures are mainly energy dissipation tank or choose bank in action, to energy dissipation tank or choose the requirement of bank compared with
Height, structure is complex, is also susceptible to damage.
Utility model content
To overcome existing flood discharge aqueduct above shortcomings, technical problem to be solved in the utility model to be：It provides
A kind of flood discharge aqueduct structure simple in structure, flow effect of energy dissipation is good.
Technical solution adopted by the utility model to solve its technical problems is：
Flood discharge aqueduct structure under the conditions of soft base geology, including from upstream toward the inclined groove body in downstream, the groove body tilts
The width of section gradually increases from upstream toward downstream.
Further, the slot bottom of the groove body tilting section is the energy dissipating step that multiple step surfaces are formed.
Further, the groove body downstream is equipped with one section of flat segments, the one end of flat segments far from groove body is equipped with water blocking
Bank makes to form Energy-Dissipation Pond between flat segments and water-blocking bank.
The utility model has the beneficial effects that：By transforming the groove body of traditional fixed width as width from upstream toward downstream
Gradual increased diffused groove body, the structure can make flow with the increase of diffuser plane width, and flow depth is gradually reduced,
Flow energy accordingly reduces, to reduce its impact force to downstream river course, then coordinate energy dissipating step, Energy-Dissipation Pond and water-blocking bank etc.
The effect of facility further decreases the ability of flow, eliminates the adverse effect that flow washes away downstream river course, and whole knot
Structure has many advantages, such as easy for construction, with good investment and short time limit.
Description of the drawings
Fig. 1 is the utility model structure top view.
Fig. 2 is the utility model structural front view.
Label is 1- groove bodies, 2- energy dissipating steps, 3- Energy-Dissipation Ponds, 4- water-blocking banks in figure.
Specific implementation mode
The utility model is further illustrated below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, the flood discharge aqueduct structure under the conditions of the soft base geology of the utility model, including down from upstream
Inclined groove body 1 is swum, the width of 1 tilting section of the groove body gradually increases from upstream toward downstream.The width of existing flood discharge aqueduct
It is typically fixed, it relies solely on the energy dissipation tank of section downstream or chooses bank to slow down the impact force of flow, choosing bank can play
Certain energy dissipating effect, but chosen high flow and equally downstream river course can be caused to wash away, and it is complex to choose bank structure, tool
There are certain difficulty of construction, cost also higher.The utility model by being simply transformed, flow when by the tilting section of groove body 1,
Flow can be gradually reduced with the increase of 1 plane width of groove body, flow depth, and flow energy accordingly reduces, right to reduce its
The impact force of downstream river course.
Further, the slot bottom of 1 tilting section of the groove body is the energy dissipating step 2 that multiple step surfaces are formed.Flow is flowing through
When energy dissipating step 2, flow can be caused disorderly, collided with each other between flow, relative to the inclined surface of smooth-going, step surface can further subtract
The energy of weep.
Above-mentioned two structure is intended to reduce flow ability when flow flows through flood discharge aqueduct, and groove body is reached in order to reduce flow
The scouring force of 1 downstream is equipped with one section of flat segments in 1 downstream of the groove body, and the one end of flat segments far from groove body 1 is equipped with water blocking
Bank 4 makes to form Energy-Dissipation Pond 3 between flat segments and water-blocking bank 4.Ponding in Energy-Dissipation Pond 3 can play the flow flowed down from groove body 1
Cushioning effect avoids it from directly being washed away to river formation, then again from 4 upper flat of water-blocking bank it is suitable flow to downstream river course, it is maximum
Limit plays a protective role to river.
The utility model makes flow with the increase of diffuser plane width, flow is deep by using diffused groove body
Degree is gradually reduced, and flow energy accordingly reduces, and to reduce its impact force to downstream river course, then coordinates energy dissipating step, energy dissipating
The effect of the facilities such as the pool and water-blocking bank, further decreases the ability of flow, eliminates the unfavorable shadow that flow washes away downstream river course
It rings.By the practical application in the Ya Mansu Hydropower Projects of Huaneng Group Xinjiang, effect of energy dissipation protrudes, very to downstream river course impact
It is small, and total is easy for construction, with good investment, short time limit, by the consistent favorable comment in industry, has good economic society
Value.
Claims (1)
1. the flood discharge aqueduct structure under the conditions of soft base geology, including from upstream toward the inclined groove body in downstream (1), it is characterized in that：Institute
The width for stating groove body (1) tilting section gradually increases from upstream toward downstream, and the slot bottom of groove body (1) tilting section is multiple step surfaces
The energy dissipating step (2) of formation, groove body (1) downstream are equipped with one section of flat segments, and the one end of flat segments far from groove body is equipped with gear
Water bank (4) makes to form Energy-Dissipation Pond (3) between flat segments and water-blocking bank (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721610165.6U CN207776061U (en) | 2017-11-27 | 2017-11-27 | Flood discharge aqueduct structure under the conditions of soft base geology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721610165.6U CN207776061U (en) | 2017-11-27 | 2017-11-27 | Flood discharge aqueduct structure under the conditions of soft base geology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207776061U true CN207776061U (en) | 2018-08-28 |
Family
ID=63234102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721610165.6U Active CN207776061U (en) | 2017-11-27 | 2017-11-27 | Flood discharge aqueduct structure under the conditions of soft base geology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207776061U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109797715A (en) * | 2019-01-21 | 2019-05-24 | 河海大学 | A method of optimization aqueduct diffuser hydraulic flow state |
-
2017
- 2017-11-27 CN CN201721610165.6U patent/CN207776061U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109797715A (en) * | 2019-01-21 | 2019-05-24 | 河海大学 | A method of optimization aqueduct diffuser hydraulic flow state |
| CN109797715B (en) * | 2019-01-21 | 2020-07-17 | 河海大学 | Method for optimizing hydraulic flow state of diffusion section of aqueduct |
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