CN206359990U - Structure for reducing dam body water level during rock panel is poured to retaining - Google Patents
Structure for reducing dam body water level during rock panel is poured to retaining Download PDFInfo
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- CN206359990U CN206359990U CN201621462923.XU CN201621462923U CN206359990U CN 206359990 U CN206359990 U CN 206359990U CN 201621462923 U CN201621462923 U CN 201621462923U CN 206359990 U CN206359990 U CN 206359990U
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- dam
- dam body
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- water level
- retaining
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Abstract
The utility model is related to a kind of for reducing the structure of dam body water level during rock panel is poured to retaining.The purpose of this utility model be to provide it is a kind of be used for reduce the structure of dam body water level during rock panel is poured to retaining, can it is simpler, it is safe reduction dam body water level so that safer during concrete slab is poured to retaining.The technical solution of the utility model is：It is a kind of to be used to reduce the structure of dam body water level during rock panel is poured to retaining, dam body including rock, the concrete slab for being laid on upstream dam slope, the toe board for being arranged in panel bottom periphery, and it is arranged on the water stop at the dam slope toe of downstream, it is characterised in that：The dam slope of the water stop upstream side is provided with several draining shafts, and draining shaft has the immersible pump for being placed in shaft bottom and leads to the drainpipe in the outer downstream of well.CFRD of the utility model suitable for Hydraulic and Hydro-Power Engineering.
Description
Technical field
The utility model is related to a kind of for reducing the structure of dam body water level during rock panel is poured to retaining.
CFRD suitable for Hydraulic and Hydro-Power Engineering.
Background technology
CFRD is generally concrete slab, bedding material area, Transition Materials area, main enrockment from upstream to downstream
Area and secondary rockfill area.In the panel concrete casting and constructing phase by external environment influence, dam body water level inside is raised, once water level mistake
Reverse water pressure inside height, dam body can safely cause harm to concrete slab, generally require to reduce dam body using engineering measure
Water level inside.
Dam body inside reverse water pressure during panel concrete is poured to retaining is eliminated at present, and conventional method is by toe
Plate or panel reserve reverse drainage hole, and the later stage is blocked again, and rapid retaining, backfill ballast etc. are needed after closure；And these methods
Very high is required to later stage plugging construction quality, construction organization, it is careless slightly to be all likely to result in potential safety hazard.Therefore, how more
Simply, safe reduction dam body water level, is designer's urgent problem.
The content of the invention
The technical problems to be solved in the utility model is：It is used to reduce panel there is provided one kind for above-mentioned problem
The structure of dam body water level during face-plate of rockfill dam is poured to retaining, simpler, safe can reduce dam body water level, so that coagulation
Native panel is safer during pouring to retaining.
The technical scheme that the utility model is used is：One kind is used to reducing during rock panel poured to retaining
The structure of dam body water level, including rock dam body, be laid on the concrete slab of upstream dam slope, be arranged in panel bottom
The toe board on periphery, and it is arranged on the water stop at the dam slope toe of downstream, it is characterised in that：The dam slope of the water stop upstream side
Several draining shafts are provided with, draining shaft has the immersible pump for being placed in shaft bottom and leads to the drainpipe in the outer downstream of well.
Draining shaft steel pipe pre-buried when being dam embankment is the hole being drilled with after the completion of dam embankment, directly
Footpath is 400~1000mm.
The tube wall of the steel pipe is the floral tube pattern provided with water seepage hole.
The steel pipe surrounding and draining shaft shaft bottom set filter protection material.
The beneficial effects of the utility model are：The utility model is used sets draining to erect in rock downstream dam slope
Well, and the normal operation input before concrete slab is poured, are seeped water using draining shaft pump drainage dam body, are reduced dam body water level, are kept away
Exempt from dam body reverse water pressure to cause harm to concrete slab, processing method construction very simple, without in toe board or panel part
The reserved osculum in position, to toe board, panel without damage, also without retaining or backfill ballast time requirement anxiety etc. before later stage closure, dam
Problem, economic input is also less.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model CFRD.
Fig. 2 is draining shaft structural representation in the utility model.
Embodiment
As shown in Figure 1 and Figure 2, the present embodiment is poured to the retaining phase to be a kind of for reducing Face Slab of Concrete-faced Rockfill
Between dam body water level structure, including rock dam body 1, be laid on the concrete slab 2 of upstream dam slope, be arranged in panel
The toe board 3 of bottom periphery, and the water stop 7 at the dam slope toe of downstream is arranged on, the upstream side of water stop 7 sets several (roots
Determined according to dam body infiltration flow) draining shaft 6, after draining shaft is formed, immersible pump 601 is placed in shaft bottom, and dam body is seeped water
Using the pump drainage of drainpipe 602 to dam downstream, to reduce the water level of dam body 1, it is to avoid the reverse water pressure 8 in dam body 1 is to concrete slab 2
Cause harm, the pump drainage of draining shaft 6 work should before concrete slab 2 is poured normal operation input.
In the present embodiment, draining shaft 6 can be the steel pipe 605 pre-buried in dam embankment, or dam embankment complete
Drilling is formed afterwards.The diameter of steel pipe 605 is preferably in 400mm~1000mm, and steel pipe 605 uses floral tube form, i.e. tube wall to set water seepage hole
604；The embedded surrounding of steel pipe 605 of draining shaft 6 should fill material according to dam body 1, it is determined whether need to set filter protection material
Material 603；The bottom plate of draining shaft 6 typically places immersible pump 601, should also set anti-in shaft bottom for the dam foundation 5 for alluvial deposit foundation
Filter protection materials 603.Draining shaft 6 pump drainage work should before concrete slab 2 is poured normal operation input, dam body 1 is oozed
Water conservancy immersible pump 601, by the pump drainage of drainpipe 602 to the downstream of water stop 7, to reduce the water level of dam body 1, it is to avoid reverse water pressure 8
Concrete slab 2 is caused to produce destruction.Draining shaft 6 is after the normal retaining of dam is completed, and draining shaft 6 can be backfilled with rock ballast and sealed
It is stifled, it can also retain.
Certainly, described above is not limitation of the utility model, and the utility model is also not limited to the example above, this skill
The those of ordinary skill in art field, in the range of the utility model, the change made, changes addition or replaces, should belong to this
The protection domain of utility model.
Claims (4)
1. a kind of be used to reduce the structure of dam body water level during rock panel is poured to retaining, including rock
Dam body (1), the concrete slab (2) for being laid on upstream dam slope, the toe board (3) of panel bottom periphery is arranged in, and be arranged on
Water stop (7) at the dam slope toe of downstream, it is characterised in that：The dam slope of water stop (7) upstream side is arranged provided with several
Water vertical shaft (6), draining shaft has the immersible pump (601) for being placed in shaft bottom and leads to the drainpipe (602) in the outer downstream of well.
2. it is according to claim 1 a kind of for reducing the knot of dam body water level during rock panel is poured to retaining
Structure, it is characterised in that：The draining shaft (6) steel pipe (605) pre-buried when being dam embankment or after the completion of being dam embankment
The hole being drilled with, a diameter of 400~1000mm.
3. it is according to claim 2 a kind of for reducing the knot of dam body water level during rock panel is poured to retaining
Structure, it is characterised in that：The tube wall of the steel pipe (605) is the floral tube pattern provided with water seepage hole (604).
4. it is according to claim 2 a kind of for reducing the knot of dam body water level during rock panel is poured to retaining
Structure, it is characterised in that：Steel pipe (605) surrounding and draining shaft (6) shaft bottom set filter protection material (603).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621462923.XU CN206359990U (en) | 2016-12-29 | 2016-12-29 | Structure for reducing dam body water level during rock panel is poured to retaining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621462923.XU CN206359990U (en) | 2016-12-29 | 2016-12-29 | Structure for reducing dam body water level during rock panel is poured to retaining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206359990U true CN206359990U (en) | 2017-07-28 |
Family
ID=59377480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621462923.XU Active CN206359990U (en) | 2016-12-29 | 2016-12-29 | Structure for reducing dam body water level during rock panel is poured to retaining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206359990U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110295576A (en) * | 2019-07-22 | 2019-10-01 | 长江勘测规划设计研究有限责任公司 | Improve the concrete face rockfill dam of stress and deformations of concrete face slab state |
-
2016
- 2016-12-29 CN CN201621462923.XU patent/CN206359990U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110295576A (en) * | 2019-07-22 | 2019-10-01 | 长江勘测规划设计研究有限责任公司 | Improve the concrete face rockfill dam of stress and deformations of concrete face slab state |
| CN110295576B (en) * | 2019-07-22 | 2024-04-12 | 长江勘测规划设计研究有限责任公司 | Concrete face rockfill dam for improving face stress deformation state |
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