CN107558450A - Cavity type chooses bank structure - Google Patents
Cavity type chooses bank structure Download PDFInfo
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- CN107558450A CN107558450A CN201710983840.8A CN201710983840A CN107558450A CN 107558450 A CN107558450 A CN 107558450A CN 201710983840 A CN201710983840 A CN 201710983840A CN 107558450 A CN107558450 A CN 107558450A
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- bank
- hole body
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Abstract
Disclosed by the invention is that a kind of cavity type suitable for outlet structure escape works outlet of hydraulic engineering technical field chooses bank structure, including choosing bank main body by choosing bank abutment wall and choosing the groove profile that bank bottom plate forms, it is in upward arcuate structure that the bottom land for choosing bank main body arrives the port of export from the center, bank bottom parts of choosing below the bottom land of the arcuate structure are connected provided with the cavity structure with atmosphere, the lowest part of the bottom land arcuate structure provided with drainpipe with cavity structure.The beneficial effects of the invention are as follows：By being chosen in traditional mass concrete, one or more cavity structures with atmosphere are set in bank bottom plate, concrete amount can be saved, and the thermograde and radiating condition at mass concrete center can be improved, so as to reduce crack, the alternative drainage pipeline of larger cavity, make draining smooth, for ease of maintenaince.
Description
Technical field
The present invention relates to hydraulic engineering technical field, more particularly to a kind of cavity type suitable for outlet structure escape works outlet to choose
Bank structure.
Background technology
According to conditions such as engineering geology, landform, the hydrology, outlet structure escape works jet bucket Dam Configuration Design is that satisfaction is grown current
Smoothly return the abundant diffusion of groove and overflow, it usually needs larger chooses angle, causes jet bucket elevation to be far above ground elevation, chooses
Bank bottom plate is thicker.Traditional chooses bank structure as the continuous interior mass concrete solid structure for burying 1~2 drainage pipeline, no
Only concrete amount is larger, and drainage pipeline easily blocks, and temperature control difficulty is big in casting process, crack etc. often occurs and lacks
Fall into.
The content of the invention
For overcome it is existing choose bank structure above shortcomings, the technical problems to be solved by the invention are：There is provided a kind of
It is simple in construction, easy for construction, be easy to temperature control, the cavity type that draining is smooth, investment cost is low chooses bank structure.
The technical solution adopted for the present invention to solve the technical problems is：
Cavity type chooses bank structure, including chooses bank main body by choosing bank abutment wall and choosing the groove profile that bank bottom plate forms, described to choose bank master
It is in upward arcuate structure that the bottom land of body arrives the port of export from the center, and bank base plate is chosen below the bottom land of the arcuate structure
The cavity structure with atmosphere is arranged with, the lowest part of the bottom land arcuate structure is connected provided with drainpipe with cavity structure.
It is further that the cavity structure chooses the hole that bank base plate interior and Parallel to the flow direction are set for multiple extend to
Body, the multiple hole body uniform intervals arrangement.
It is further that the height and width dimensions of the hole body are 0.5~2.0m, each hole body interval concrete thickness is
1.0~2.0m, adjacent two layers hole body interlaced arrangement.
It is further that the cavity structure passes through the hole body for choosing bank bottom plate both sides and the setting of horizontal water (flow) direction to be multiple,
The multiple hole body uniform intervals arrangement.
It is further that the height and width dimensions of the hole body are 0.5~2.0m, each hole body interval concrete thickness is
1.0~2.0m, adjacent two layers hole body interlaced arrangement.
It is further that the hole body is arranged on same elevation, the height and width of hole body are 4~10m, each hole body size
Consistent or gradually increase from inside to outside.
It is further that the cavity structure is one and extends to the hole for choosing that bank base plate interior and Parallel to the flow direction are set
Body, the top of the hole body are gradually increased from inside to outside along bottom land.
It is further that the hole body distance chooses bank sidewall of the bottom plate and the distance at top is not less than 1~2m.
It is further that the drainpipe is connected in closest with it in the lowest part and cavity structure of bottom land arcuate structure
Hole body between, and base slope is provided with the hole body, the gradient is not less than 0.3%.
It is further, it is described to choose bank abutment wall and choose bank bottom plate and use normal concrete, by its trench structure formed
One layer of abrasion resistance concrete is provided with the inside of bottom land and cell wall, abrasion resistance concrete thickness is 0.5m~2.0m.
The beneficial effects of the invention are as follows：It is one or more and big by choosing setting in bank bottom plate in traditional mass concrete
The cavity structure of gas connection, can save concrete amount, and can improve the thermograde and heat sink strip at mass concrete center
Part, so as to reduce crack, the alternative drainage pipeline of larger cavity, make draining smooth, for ease of maintenaince.
Brief description of the drawings
Fig. 1 is the structure sectional view of the embodiment of the present invention one.
Fig. 2 is the structure section figure of the embodiment of the present invention one.
Fig. 3 is the structure sectional view of the embodiment of the present invention two.
Fig. 4 is the structure sectional view of the embodiment of the present invention two.
Fig. 5 is the structure section figure of the embodiment of the present invention two.
Fig. 6 is the structure sectional view of the embodiment of the present invention three.
Fig. 7 is the structure section figure of the embodiment of the present invention three.
Mark chooses bank abutment wall for 1- in figure, and 2- chooses bank bottom plate, 3- bottom lands, 4- cavity structures, 5- drainpipes.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples.
The cavity type of the present invention chooses bank structure, including chooses bank main body by choosing bank abutment wall 1 and choosing the groove profile that bank bottom plate 2 forms,
It is in upward arcuate structure that the bottom land 3 for choosing bank main body arrives the port of export from the center, below the bottom land 3 of the arcuate structure
Bank bottom parts of choosing be provided with cavity structure 4 with atmosphere, the lowest part of the arcuate structure of bottom land 3 is provided with drainpipe 5
It is connected with cavity structure 4.
Substantial amounts of heat is released in cement hydration process, and is concentrated mainly on 7d after pouring or so, general every gram of cement can
To release 500J or so heat, if with cement consumption 350kg/m3~550kg/m3To calculate, will be released per cubic meter of concrete
The heat of 17500KJ~27500 is released, so that concrete internal temperature rise (reachable 70 DEG C or so, even more high) is especially
For mass concrete, this phenomenon is more serious.Because inside concrete is different with the radiating condition on surface, therefore coagulation
Native central temperature is very high, will form thermograde, inside concrete is produced compression, and surface produces tension, should when drawing
Concrete surface will produce crack when power exceedes the ultimate tensile strength of concrete.
Large volume concrete structural is in construction period, and the change of outside air temperature is to preventing the generations of Volume Concrete Cracks
Play very big influence.The temperature of inside concrete is by the radiating of placing temperature, the adiabatic temperature of hydration heat of cement and structure
The various temperature superimposition sum compositions such as temperature.Placing temperature has direct relation with outside air temperature, and outside air temperature is higher, concrete
Placing temperature also will be higher；The internal-external temperature difference gradient of mass concrete can be increased again if ambient temperature reduces.Such as
The decline of fruit ambient temperature is too fast, can cause very big temperature stress, extremely easily triggers the cracking of concrete.The other external world
Humidity also has a great impact to the crack of concrete, and extraneous humidity reduces the drying shrinkage that can accelerate concrete, also results in mixed
The generation of solidifying soil cracking seam.
The present invention is improves the thermograde and radiating condition at mass concrete center, so as to reduce crack, Yi Jijie
Concrete works amount is saved, is chosen in tradition and one or more cavity knots with atmosphere is set in the mass concrete of bank bottom plate 2
Structure 4, the radiating of mass concrete is can obviously improve, so as to improve the Forming Quality and structural stability of choosing bank structure.According to
This design, the present invention devise following several typical cavity structures.
Embodiment one：
As shown in Figure 1 and Figure 2, the cavity structure 4 is that multiple extend to chooses bank base plate interior and Parallel to the flow direction setting
Hole body, the multiple hole body uniform intervals arrangement, the inner of each hole body should ensure that distance apart from deep-slotted chip breaker bottom 3 not less than 1~
2m.To ensure the stability of structure, the height and width dimensions of the hole body are 0.5~2.0m, each hole body interval Concrete Thick
Spend for 1.0~2.0m, adjacent two layers hole body interlaced arrangement, bottom plate placement layer by layer can be met (generic hierarchical pours 2~3m of thickness)
It is required that.The cavity structure 4 can ensure that choosing bank floor space is evenly distributed, and supporting ＆ stablizing is reliable, and can ensure from the appearance
The whole integrality for choosing bank structure both sides.
Embodiment two：
As shown in figure 3, the cavity structure 4 passes through the hole body for choosing the both sides of bank bottom plate 2 and the setting of horizontal water (flow) direction to be multiple,
The multiple hole body uniform intervals arrangement.The hole body of the cavity structure 4 can be as the size of embodiment one, i.e., described hole body
Height and width dimensions be 0.5~2.0m, each hole body interval concrete thickness is 1.0~2.0m, and adjacent two layers hole body interlocks
Arrangement.Hole body is set using horizontal water (flow) direction, the area with air contact can be increased, and convection current can be formed, radiating effect
Fruit is relative more preferable with Parallel to the flow direction.In addition, hole body larger as shown in Figure 4, Figure 5, can only be set in same bottom elevation
Several larger cavity pocket bodies, the height and width of hole body are 4~10m, and each hole body size is consistent or gradually increases from inside to outside,
Not only meet temperature control and save concrete works amount, some can also meet that cavity crosses the traffic requirement such as car.
Embodiment three：
As shown in Figure 6, Figure 7, the cavity structure 4 extends to for one chooses the inside of bank bottom plate 2 and Parallel to the flow direction setting
Hole body, the top of the hole body is gradually increased from inside to outside along bottom land.Using the structure of a hole body, mainly for some
Size is less to choose bank, ensures to choose the stability of bank backplanes support applying man-hour requirement, hole body distance chooses bank sidewall of the bottom plate and top
The distance in portion should be not less than 1~2m.
Above-mentioned cited each cavity structure, should be according to structural stress condition, execution conditions (template etc.), possible maintenance
Maintenance condition and other functional conditions carry out reasonable selection.All the drainpipe 5 should be connected in the arc of bottom land 3 in various configurations
In the lowest part and cavity structure 4 of structure between the hole body closest with it, and base slope is set in the hole body, the gradient is not small
In 0.3%, drainage pipeline is replaced with cavity structure, makes draining smooth.In addition, economically, choose bank abutment wall 1 and choose bank bottom
Plate 2 uses normal concrete, by being provided with one layer of abrasion resistance concrete, anti-impact on the inside of the bottom land and cell wall of its trench structure formed
Grinding concrete thickness is 0.5m~2.0m, can improve the scour ＆ wear resistance for choosing bank, and bank service life is chosen in extension.
The present invention sets one or more cavitys with atmosphere by being chosen in traditional mass concrete in bank bottom plate
Structure, concrete amount can be saved, and the thermograde and radiating condition at mass concrete center can be improved, split so as to reduce
Seam, the alternative drainage pipeline of larger cavity, makes draining smooth, for ease of maintenaince, has good practicality and application prospect.
Claims (10)
1. cavity type chooses bank structure, including by choosing bank abutment wall (1) and choosing the groove profile that bank bottom plate (2) forms bank main body is chosen, it is described to choose
It is in upward arcuate structure that the bottom land (3) of bank main body arrives the port of export from the center, it is characterized in that：In the bottom land of the arcuate structure
(3) bank bottom parts are chosen provided with the cavity structure (4) with atmosphere, the lowest part of bottom land (3) arcuate structure below
It is connected provided with drainpipe (5) with cavity structure (4).
2. cavity type as claimed in claim 1 chooses bank structure, it is characterized in that：The cavity structure (4) is that multiple extend to is chosen
Bank bottom plate (2) is internal and the hole body of Parallel to the flow direction setting, the multiple hole body uniform intervals are arranged.
3. cavity type as claimed in claim 2 chooses bank structure, it is characterized in that：The height and width dimensions of the hole body are 0.5
~2.0m, each hole body interval concrete thickness are 1.0~2.0m, adjacent two layers hole body interlaced arrangement.
4. cavity type as claimed in claim 1 chooses bank structure, it is characterized in that：The cavity structure (4) chooses bank for multiple pass through
The hole body that bottom plate (2) both sides and horizontal water (flow) direction are set, the multiple hole body uniform intervals arrangement.
5. cavity type as claimed in claim 4 chooses bank structure, it is characterized in that：The height and width dimensions of the hole body are 0.5
~2.0m, each hole body interval concrete thickness are 1.0~2.0m, adjacent two layers hole body interlaced arrangement.
6. cavity type as claimed in claim 4 chooses bank structure, it is characterized in that：The hole body is arranged on same elevation, hole body
Height and width are 4~10m, and each hole body size is consistent or gradually increases from inside to outside.
7. cavity type as claimed in claim 1 chooses bank structure, it is characterized in that：The cavity structure (4) extends to for one and chosen
Bank bottom plate (2) is internal and the hole body of Parallel to the flow direction setting, the top of the hole body gradually increase from inside to outside along bottom land (3)
It is high.
8. cavity type as claimed in claim 7 chooses bank structure, it is characterized in that：The hole body distance choose bank bottom plate (2) side wall and
The distance at top is not less than 1~2m.
9. the cavity type as described in claim 1~8 any one claim chooses bank structure, it is characterized in that：The drainpipe
(5) it is connected between hole body closest with it in the lowest part and cavity structure (4) of bottom land (3) arcuate structure, and in the hole
Base slope is provided with vivo, and the gradient is not less than 0.3%.
10. the cavity type as described in claim 1~8 any one claim chooses bank structure, it is characterized in that：It is described to choose bank side
Wall (1) and choose bank bottom plate (2) and use normal concrete, it is anti-by being provided with one layer on the inside of the bottom land and cell wall of its trench structure formed
Grinding concrete is rushed, abrasion resistance concrete thickness is 0.5m~2.0m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710983840.8A CN107558450B (en) | 2017-10-20 | 2017-10-20 | Cavity type flip bucket structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710983840.8A CN107558450B (en) | 2017-10-20 | 2017-10-20 | Cavity type flip bucket structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107558450A true CN107558450A (en) | 2018-01-09 |
| CN107558450B CN107558450B (en) | 2023-08-22 |
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ID=60985936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710983840.8A Active CN107558450B (en) | 2017-10-20 | 2017-10-20 | Cavity type flip bucket structure |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU3050884A (en) * | 1983-07-20 | 1985-01-24 | Morawitz, C.A. | Erosion control at base of weir |
| US20100209192A1 (en) * | 2006-06-23 | 2010-08-19 | Hans Christian Behm | Adjustable weir for hydroelectric dam installations |
| CN102251504A (en) * | 2011-06-10 | 2011-11-23 | 四川大学 | Facility for eliminating negative pressure of bottom plate at torrent diffusion slope-variable section of flood discharging tunnel |
| CN203808026U (en) * | 2014-03-28 | 2014-09-03 | 中国水电顾问集团贵阳勘测设计研究院有限公司 | Aerator structure for ultra-wide drain trough |
| CN205421200U (en) * | 2016-03-21 | 2016-08-03 | 中国电建集团成都勘测设计研究院有限公司 | A class dissipation structure is chosen in outlet structure escape works export |
| CN207405595U (en) * | 2017-10-20 | 2018-05-25 | 中国电建集团成都勘测设计研究院有限公司 | Cavity type chooses bank structure |
-
2017
- 2017-10-20 CN CN201710983840.8A patent/CN107558450B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU3050884A (en) * | 1983-07-20 | 1985-01-24 | Morawitz, C.A. | Erosion control at base of weir |
| US20100209192A1 (en) * | 2006-06-23 | 2010-08-19 | Hans Christian Behm | Adjustable weir for hydroelectric dam installations |
| CN102251504A (en) * | 2011-06-10 | 2011-11-23 | 四川大学 | Facility for eliminating negative pressure of bottom plate at torrent diffusion slope-variable section of flood discharging tunnel |
| CN203808026U (en) * | 2014-03-28 | 2014-09-03 | 中国水电顾问集团贵阳勘测设计研究院有限公司 | Aerator structure for ultra-wide drain trough |
| CN205421200U (en) * | 2016-03-21 | 2016-08-03 | 中国电建集团成都勘测设计研究院有限公司 | A class dissipation structure is chosen in outlet structure escape works export |
| CN207405595U (en) * | 2017-10-20 | 2018-05-25 | 中国电建集团成都勘测设计研究院有限公司 | Cavity type chooses bank structure |
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| CN107558450B (en) | 2023-08-22 |
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