CN204282315U - A kind of absorption basin discharge structure - Google Patents
A kind of absorption basin discharge structure Download PDFInfo
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- CN204282315U CN204282315U CN201420719862.5U CN201420719862U CN204282315U CN 204282315 U CN204282315 U CN 204282315U CN 201420719862 U CN201420719862 U CN 201420719862U CN 204282315 U CN204282315 U CN 204282315U
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- drainage passage
- force reduction
- pool bottom
- reduction pool
- absorption basin
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Abstract
The utility model discloses a kind of absorption basin discharge structure, belong to Hydraulic and Hydro-Power Engineering technical field, comprise absorption basin foundation plane, drainage channel and force reduction pool bottom, described drainage channel is distributed between absorption basin foundation plane and force reduction pool bottom and in force reduction pool bottom, described drainage channel comprises longitudinal drainage passage, transverse drainage passage and vertical drainage passage, described longitudinal drainage passage, to be communicated with mutually between transverse drainage passage and vertical drainage passage, between force reduction pool bottom and absorption basin foundation plane, to be also equipped with graded broken stone.The drainage channel that the technical program is interlocked by laying longitudinal, horizontal, vertical three directions of being made up of hollow brick between force reduction pool bottom and absorption basin foundation plane and in force reduction pool bottom, make to be interlinked to the outside in force reduction pool bottom, ponding under force reduction pool bottom can be discharged smoothly, reduce the uplift pressure under base plate, make base plate external and internal pressure differential closely equal, effectively ensure that the stability of force reduction pool bottom.
Description
Technical field
The utility model belongs to Hydraulic and Hydro-Power Engineering technical field, relates to the absorption basin system that a kind of flood discharge intensity is high, flowing pressure is large, especially relates to a kind of absorption basin discharge structure.
Background technology
Absorption basin impels the energy-dissipating installation producing underflow type hydraulic jump in outlet structure escape works downstream.Force reduction pool bottom Stability Analysis of Structures is related to lower sluicing stream effect of energy dissipation, and whether can safe and stable operation, be an important technology in Design of Water Resources and Hydroelectric Projects field if being related to hydraulic structure.Force reduction pool bottom is subject to down letting out the effects such as high speed water jet impact, substrate uplift pressure, pressure fluctuation meter, may cause force reduction pool bottom in flood-discharge energy-dissipating process, produce the floating vibration of erratic liter, and then unstable failure.Common solution in prior art, lay drain hole whole of force reduction pool bottom on the one hand, lay the blind material of crisscross draining at absorption basin base surface on the other hand, form bottom discharge system, the patent of invention being 201410010580.2 as application number discloses the buried drainage system of a kind of power station absorption basin pipe network, is said structure, under current are directed to force reduction pool bottom, make the upper and lower hydraulic pressure of base plate close, decrease base uplift pressure, to ensure the stable of force reduction pool bottom.But this structure also exists some defects, on the one hand, when when absorption basin front end, large, the turbulence scale of pressure fluctuation meter is large, easily cause launching stress difference on force reduction pool bottom excessive, drain hole is sucked out on the contrary; On the other hand, the blind material of bottom discharge is easily blocked by the concrete slurry precipitated in current, thus causes impeded drainage even to lose efficacy, and maintenance inconvenience, be unfavorable for the stable operation of absorption basin.
Utility model content
In order to solve the problem, the utility model provides a kind of absorption basin discharge structure, thus reaches good draining pressure release effect.
The utility model is achieved by following technical solution.
A kind of absorption basin discharge structure, comprise absorption basin foundation plane, drainage channel and force reduction pool bottom, described drainage channel is distributed between absorption basin foundation plane and force reduction pool bottom and in force reduction pool bottom, described drainage channel comprises longitudinal drainage passage, transverse drainage passage and vertical drainage passage, described longitudinal drainage passage, to be communicated with mutually between transverse drainage passage and vertical drainage passage, between force reduction pool bottom and absorption basin foundation plane, to be also equipped with graded broken stone.
Described longitudinal drainage passage, transverse drainage passage and vertical drainage channel outer wall are all coated by plastic foil; The material of described plastic foil is polyethylene; Described longitudinal drainage passage, transverse drainage passage and vertical drainage passage are hollow brick inner via hole and connect and form; Described longitudinal drainage passage, transverse drainage passage and vertical drainage passage corner are all equipped with graded broken stone; Described graded broken stone is the uniform rubble of grating or sand boulder and cobble.
The beneficial effects of the utility model are:
A kind of absorption basin discharge structure described in the utility model, by laying the drainage channel that longitudinal, horizontal, vertical three directions of being made up of hollow brick interlock between force reduction pool bottom and absorption basin foundation plane and in force reduction pool bottom, make to be interlinked to the outside in force reduction pool bottom, ponding under force reduction pool bottom can be discharged smoothly, reduce the uplift pressure under base plate, make base plate external and internal pressure differential closely equal, effectively ensure that the stability of force reduction pool bottom; By utilizing the loose structure of hollow brick as water stream channel, utilize graded broken stone to realize hollow brick corner as transition to be communicated with, add that hollow brick is comparatively stable under self gravitation effect, avoid that the blind material of draining in prior art lost efficacy, drain hole is sucked out or the defect such as blocking, reach the effect ensureing that force reduction pool bottom is more stable.
Accompanying drawing explanation
Fig. 1 is the structural representation of drainage channel between force reduction pool bottom and absorption basin foundation plane in the utility model;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is the structural representation in A-A cross section in the utility model;
Fig. 4 is the structural representation in B-B cross section in the utility model;
Fig. 5 is the partial structurtes enlarged drawing of longitudinal drainage passage or transverse drainage passage and vertical drainage channel intersections;
Fig. 6 is the schematic enlarged-scale view of longitudinal drainage passage and transverse drainage channel intersections;
Fig. 7, Fig. 8 are the structural representation of hollow brick;
In figure, arrow direction is water (flow) direction.
In figure: 1-absorption basin foundation plane, 2-drainage channel, 201-longitudinal drainage passage, 202-transverse drainage passage, 203-vertical drainage passage, 3-graded broken stone, 4-hollow brick, 5-force reduction pool bottom, 6-plastic foil.
Detailed description of the invention
The technical solution of the utility model is further described below in conjunction with accompanying drawing, but described in claimed scope is not limited to.
As shown in Fig. 1 ~ 8, a kind of absorption basin discharge structure described in the utility model, comprise absorption basin foundation plane 1, drainage channel 2 and force reduction pool bottom 5, described drainage channel 2 is distributed between absorption basin foundation plane 1 and force reduction pool bottom 5 and in force reduction pool bottom 5, described drainage channel 2 comprises longitudinal drainage passage 201, transverse drainage passage 202 and vertical drainage passage 203, described longitudinal drainage passage 201, be communicated with mutually between transverse drainage passage 202 and vertical drainage passage 203, graded broken stone 3 is also equipped with between force reduction pool bottom 5 and absorption basin foundation plane 1, described longitudinal drainage passage 201, transverse drainage passage 202 and vertical drainage passage 203 corner are also equipped with graded broken stone 3, support using graded broken stone 3 as vertical drainage passage 203, the drainage channel of all directions is coupled together simultaneously, described graded broken stone 3 is the uniform rubble of grating or sand boulder and cobble, particle diameter is all greater than the aperture of hollow brick 4.
Described longitudinal drainage passage 201, transverse drainage passage 202 and vertical drainage passage 203 outer wall are all coated by plastic foil 6, the concreting of each passage and force reduction pool bottom 5 is separated by plastic foil 6, the material of described plastic foil 6 is polyethylene, is not easily corroded.
Hollow brick 4 overlap that described longitudinal drainage passage 201, transverse drainage passage 202 and vertical drainage passage 203 are same model forms, hollow brick 4 is Standard Module making, inner via hole direction is identical with each channel direction, and each through hole is all just to connection, forms many pipelines.
Embodiment
As shown in the figure, absorption basin foundation plane 1 is cooked up the circuit needing to arrange longitudinal drainage passage 201 and transverse drainage passage 202, establish the uniform rubble of grating or sand boulder and cobble on planning circuit upper berth and levelling, leveling layer is laid hollow brick 4, the through hole direction of hollow brick 4 is identical with the direction of place drainage channel, at the uniform rubble of crossover location filling grating or the sand boulder and cobble of longitudinal drainage passage 201 and transverse drainage passage 202, longitudinal drainage passage 201 is communicated with transverse drainage passage 202 brick endoporus, at longitudinal drainage passage 201 and transverse drainage passage 202 external surface parcel polyethylene plastic film 6 except the base, slurries during to avoid building force reduction pool bottom 5 in concrete flow in hollow brick 4 through hole from the gap that hollow brick 4 connects and result in blockage, concreting on absorption basin foundation plane 1, cover longitudinal drainage passage 201 and transverse drainage passage 202, along with the concreting of force reduction pool bottom 5 rises to absorption basin afterbody gradually, the same vertical drainage passage 203 be made up of hollow brick 4 of 5 ~ 7 row is laid at absorption basin afterbody, the uniform rubble of crossover location filling grating of vertical drainage passage 203 and longitudinal drainage passage 201 and transverse drainage passage 202 or sand boulder and cobble, polyethylene plastic film 6 is wrapped up in by outside vertical drainage passage 203, the top entry of vertical drainage passage 203 is concordant with the upper surface of force reduction pool bottom 5, along with force reduction pool bottom 5 has been built, namely define the drainage channel 2. that longitudinal drainage passage 201, transverse drainage passage 202 and vertical drainage passage 203 are interconnected staggered
Wherein longitudinal drainage passage 201 and transverse drainage passage 202 can select 9m × 9m spacing, rectangular arrangement; The vertical drainage passage 203 of force reduction pool bottom 5 afterbody can select 3m × 3m spacing, rectangular arrangement, and longitudinal row 5 ~ 7 is arranged; Hollow brick 4 is sintered hollow block, and suitable choice criteria size, size is identical, and aperture is less, the model that hole number is more.
When the hydraulic pressure above force reduction pool bottom 5 is larger, water flows in drainage channel 2 from vertical drainage passage 203 top entry, current enter in transverse drainage passage 202 under force reduction pool bottom 5 and longitudinal drainage passage 201, enter in the gap between graded broken stone 3 simultaneously, space under force reduction pool bottom 5 is full of, makes the hydraulic pressure of force reduction pool bottom about 5 be tending towards equal; When hydraulic pressure below force reduction pool bottom 5 is larger, water enters in each drainage channel from the graded broken stone 3 of each expanding channels of drainage channel 2, finally discharge via vertical drainage passage 203 top inlet place, enter in absorption basin, so automatically, regulate the change adapting to force reduction pool bottom 5, force reduction pool bottom 5 can be made to keep stable state.
More than just embody rule example of the present utility model, the technical scheme that the utility model also has other embodiment, all employings to be equal to replacement or equivalent transformation to be formed, all within the protection domain required by the utility model.
Claims (6)
1. an absorption basin discharge structure, comprise absorption basin foundation plane (1), drainage channel (2) and force reduction pool bottom (5), described drainage channel (2) is distributed between absorption basin foundation plane (1) and force reduction pool bottom (5) and in force reduction pool bottom (5), it is characterized in that: described drainage channel (2) comprises longitudinal drainage passage (201), transverse drainage passage (202) and vertical drainage passage (203), described longitudinal drainage passage (201), be communicated with mutually between transverse drainage passage (202) and vertical drainage passage (203), graded broken stone (3) is also equipped with between force reduction pool bottom (5) and absorption basin foundation plane (1).
2. a kind of absorption basin discharge structure according to claim 1, is characterized in that: described longitudinal drainage passage (201), transverse drainage passage (202) and vertical drainage passage (203) outer wall are all coated by plastic foil (6).
3. a kind of absorption basin discharge structure according to claim 1, is characterized in that: described longitudinal drainage passage (201), transverse drainage passage (202) and vertical drainage passage (203) are hollow brick (4) inner via hole and connect and form.
4. a kind of absorption basin discharge structure according to claim 1, is characterized in that: described longitudinal drainage passage (201), transverse drainage passage (202) and vertical drainage passage (203) corner are all equipped with graded broken stone (3).
5. a kind of absorption basin discharge structure according to claim 1, is characterized in that: described graded broken stone (3) is the uniform rubble of grating or sand boulder and cobble.
6. a kind of absorption basin discharge structure according to claim 2, is characterized in that: the material of described plastic foil (6) is polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420719862.5U CN204282315U (en) | 2014-11-25 | 2014-11-25 | A kind of absorption basin discharge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420719862.5U CN204282315U (en) | 2014-11-25 | 2014-11-25 | A kind of absorption basin discharge structure |
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| Publication Number | Publication Date |
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| CN204282315U true CN204282315U (en) | 2015-04-22 |
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| CN201420719862.5U Active CN204282315U (en) | 2014-11-25 | 2014-11-25 | A kind of absorption basin discharge structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594307A (en) * | 2014-11-25 | 2015-05-06 | 中国电建集团贵阳勘测设计研究院有限公司 | Stilling pool base plate hydraulic pressure balance structure and construction method thereof |
| CN104947636A (en) * | 2015-07-07 | 2015-09-30 | 苏州汇诚智造工业设计有限公司 | Stilling pool bottom plate reinforcing composition and construction method thereof |
| CN108005038A (en) * | 2017-11-30 | 2018-05-08 | 中国电建集团成都勘测设计研究院有限公司 | A kind of accumulated slag charge for remittance structure of underflow stilling basin |
-
2014
- 2014-11-25 CN CN201420719862.5U patent/CN204282315U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594307A (en) * | 2014-11-25 | 2015-05-06 | 中国电建集团贵阳勘测设计研究院有限公司 | Stilling pool base plate hydraulic pressure balance structure and construction method thereof |
| CN104947636A (en) * | 2015-07-07 | 2015-09-30 | 苏州汇诚智造工业设计有限公司 | Stilling pool bottom plate reinforcing composition and construction method thereof |
| CN108005038A (en) * | 2017-11-30 | 2018-05-08 | 中国电建集团成都勘测设计研究院有限公司 | A kind of accumulated slag charge for remittance structure of underflow stilling basin |
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