CN203905031U - Drainage structure used during concrete plug construction period - Google Patents
Drainage structure used during concrete plug construction period Download PDFInfo
- Publication number
- CN203905031U CN203905031U CN201420284684.8U CN201420284684U CN203905031U CN 203905031 U CN203905031 U CN 203905031U CN 201420284684 U CN201420284684 U CN 201420284684U CN 203905031 U CN203905031 U CN 203905031U
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- concrete plug
- concrete
- steel pipe
- downstream
- upstream
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- 238000010276 construction Methods 0.000 title claims abstract description 42
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 43
- 239000010959 steel Substances 0.000 claims abstract description 43
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 23
- 238000004891 communication Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 2
- 239000002351 wastewater Substances 0.000 description 6
- 238000005086 pumping Methods 0.000 description 5
- 238000001764 infiltration Methods 0.000 description 4
- 230000008595 infiltration Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model discloses a drainage structure used during the concrete plug construction period. The drainage structure comprises a concrete plug (2), and an upstream temporary cofferdam (7) and a downstream temporary cofferdam (8) are arranged on the upstream and the downstream of the concrete plug (2). The drainage structure is characterized in that at least one drainage steel pipe (1) is arranged at the bottom of the concrete plug (2), the upstream end of each drainage steel pipe (1) is located at the upstream of the upstream temporary cofferdam (7), and the downstream end of each drainage steel pipe (1) is located at the downstream of the downstream temporary cofferdam (8). According to the drainage structure, the drainage steel pipes are embedded into the concrete plug so as to guarantee drainage during the concrete plug construction period, and the drainage structure is simple in structure, rapid and convenient to construct, safe and reliable; due to the fact that late drainage steel pipes are closed through valves and micro-expansion concrete is used for plugging the drainage steel pipes and the valves, the construction technology is simple, the sealing effect is good, and it is guaranteed that the drainage steel pipes cannot leak water when a project runs perpetually.
Description
Technical field
The utility model belongs to Hydraulic and Hydro-Power Engineering technical field, relates to a kind of discharge structure, particularly relates to the discharge structure of a kind of concrete plug construction period.
Background technology
According to lock retaining requirement under Hydraulic and Hydro-Power Engineering, must be by Diversion Tunnel or construction the permanent shutoff in hole after lower lock retaining, guarantee engineering safety operation after lower lock.Because reservoir area after lower lock starts retaining, in concrete plug construction period cavern, will produce a large amount of infiltrations, meanwhile, the construction waste water when construction of concrete plug also will affect plug engineering construction.At present, hydroelectric project is generally taked, at the upstream side of concrete plug, water-pumping/draining equipment is set infiltration and construction waste water is carried out to pump drainage to meet concrete plug dry work requirement, or changes concrete plug material into underwater concreting.But, adopt water-pumping/draining equipment construction electricity consumption power supply must be embedded in concrete plug, affect concrete stopper structure integrality, and water-pumping/draining expends electric weight, increase construction investment; If take underwater concreting, its pouring quality is difficult to ensure, affects concrete plug construction quality, has hidden danger of quality.
Utility model content
For addressing the above problem, the utility model provides the discharge structure of a kind of concrete plug construction period, make concrete plug construction period without taking pumping equipment to carry out pump drainage to infiltration, construction waste water etc., also needn't take underwater concreting mode, by adopting draining steel pipe to reach the object of free-draining, implement convenient and easy, safe and reliable.
For realizing the purpose of this utility model, the discharge structure of concrete plug construction period of the present utility model, comprise concrete plug, concrete plug is Diversion Tunnel or a construction permanent water-retaining structure in hole, the upstream and downstream of this concrete plug is respectively equipped with upstream Temporary Cofferdam and downstream Temporary Cofferdam, wherein, is provided with at least one draining steel pipe in the bottom of concrete plug, the upstream extremity of this draining steel pipe is positioned at the upstream of upstream Temporary Cofferdam, and downstream is positioned at the downstream of downstream Temporary Cofferdam.
Further, in concrete plug, be provided with the current that can control in draining steel pipe by or the valve of closing.Valve be located at one can for people up and down current in case control described valve open or the valve well of closing in.Valve well is in communication with the outside by the gallery of being located in concrete plug.The opening of gallery is positioned at the downstream of described concrete plug, and gallery extends to concrete plug inside, and valve well is located at gallery and is positioned at the end of concrete plug.Valve well extends downward described draining steel pipe from described gallery.
After construction finishes, draining steel pipe is provided with slightly expanded concrete shutoff to downstream tail end from valve, and valve well inside is also provided with slightly expanded concrete shutoff.
Compared with prior art, the utility model is embedded in concrete plug in advance by employing draining steel pipe, to ensure the construction period draining of concrete plug, and simple in structure, quick construction convenience, safe and reliable; Because later stage draining steel pipe adopts valve closing, adopt slightly expanded concrete to carry out shutoff to draining steel pipe and valve well, not only construction technology is simple, good sealing effect, and while guaranteeing that engineering is forever moved, draining steel pipe is water-tight.The utility model is in the time of application, without taking pumping equipment to carry out pump drainage to infiltration, construction waste water etc., also needn't take underwater concreting mode, by adopting draining steel pipe to reach the object of free-draining, implement convenient and easy, economic and practical, in Construction for Hydroelectric Project technical field wide popularization and application.
brief description of the drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is draining steel pipe and valve well plugging structure schematic diagram in the utility model.
Description of reference numerals: 1-draining steel pipe, 2-concrete plug, 3-gallery, 4-valve, 5-valve well, 6-slightly expanded concrete, 7-upstream Temporary Cofferdam, 8-downstream Temporary Cofferdam.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1 and Figure 2, the discharge structure of concrete plug construction period of the present utility model, wherein concrete plug 2 is Diversion Tunnel or a construction permanent water-retaining structure in hole, draining steel pipe 1 is embedded in concrete plug 2 bottoms in advance, is provided with valve 4 on draining steel pipe 1.In actual applications, the diameter of draining steel pipe 1 and usage quantity thereof are determined by the wastewater flow size that seeps water and construct.Because draining steel pipe 1 is embedded in concrete plug 2 bottoms in advance, and draining steel pipe 1 is imported and exported through Temporary Cofferdam, to meet the drainage requirement of concrete plug construction period.Temporary Cofferdam is arranged at concrete plug 2 upstream and downstream, and as shown in Figure 1, 2, what be located at concrete plug 2 upstreams is upstream Temporary Cofferdam 7, and what be provided with concrete plug 2 downstreams is downstream Temporary Cofferdam 8.In concrete plug 2, be provided with gallery 3.Gallery 3 upstream sides are provided with valve well 5.Valve 4 is arranged in valve well 5.
Draining steel pipe 1 tract and valve well 5 inside are provided with slightly expanded concrete 6.The concrete that added expansion agent owing to adopting slightly expanded concrete 6, therefore concrete dry after can not produce contraction, and As time goes on, have certain free wxpansion amount.Utilize slightly expanded concrete 6 these characteristics, can make draining steel pipe 1 and valve well 5 good seals, while guaranteeing that engineering is forever moved, draining steel pipe 1 and valve well 5 are water-tight.
Adopt technique scheme, by valve 4 is set on draining steel pipe 1, and valve 4 is arranged in the valve well 5 of gallery 3 upstream sides of concrete plug 2 inside to the construction transportation that can utilize like this gallery 3 to close as later stage draining steel pipe 1.After draining steel pipe 1 is closed by valve 4, utilize slightly expanded concrete 6 by the draining steel pipe 1 of valve 4 tracts and valve well 5 shutoff, while guaranteeing that engineering is forever moved, draining steel pipe 1 and valve well 5 are water-tight.
The utility model, in the time implementing, as shown in Figure 1, is first embedded in draining steel pipe 1 concrete plug 2 bottoms in advance, at the interior valve 4 that arranges of draining steel pipe 1, and at gallery 3 upstream sides of concrete plug 2 inside, valve well 5 is set, and valve 4 is arranged in valve well 5.As shown in Figure 2, in the time that concrete plug is constructed, being flow automatically by draining steel pipe 1, ejectment is seeped water and construction waste water; After concrete plug 2 has been constructed, utilize gallery 3 and valve well 5 as construction passage, by valve 4, draining steel pipe 1 is closed, and utilize slightly expanded concrete 6 by draining steel pipe 1 tract and valve well 5 shutoff.The utility model is simple in structure, quick construction is convenient, safe and reliable, economic and practical, can be in Construction for Hydroelectric Project technical field wide popularization and application.
Certainly, be more than concrete exemplary applications of the present utility model, the utility model also has other embodiment, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, within all dropping on the desired protection domain of the utility model.
Claims (7)
1. the discharge structure of a concrete plug construction period, comprise concrete plug (2), the upstream and downstream of this concrete plug (2) is respectively equipped with upstream Temporary Cofferdam (7) and downstream Temporary Cofferdam (8), it is characterized in that: be provided with at least one draining steel pipe (1) in the bottom of described concrete plug (2), the upstream extremity of this draining steel pipe (1) is positioned at the upstream of upstream Temporary Cofferdam (7), and downstream is positioned at the downstream of downstream Temporary Cofferdam (8).
2. the discharge structure of concrete plug construction period according to claim 1, is characterized in that: in described concrete plug (2), be provided with the current that can control in draining steel pipe (1) by or the valve (4) of closing.
3. the discharge structure of concrete plug construction period according to claim 2, is characterized in that: described valve (4) is located at one can be current to control in the valve well (5) that described valve (4) opens or close up and down for people.
4. the discharge structure of concrete plug construction period according to claim 3, is characterized in that: described valve well (5) is in communication with the outside by the gallery (3) of being located in described concrete plug (2).
5. the discharge structure of concrete plug construction period according to claim 4, it is characterized in that: the opening of described gallery (3) is positioned at the downstream of described concrete plug (2), described gallery (3) extends to described concrete plug (2) inside, and described valve well (5) is located at described gallery (3) and is positioned at the end of described concrete plug (2).
6. the discharge structure of concrete plug construction period according to claim 5, is characterized in that: described valve well (5) extends downward described draining steel pipe (1) from described gallery (3).
7. the discharge structure of a kind of concrete plug construction period according to claim 1, it is characterized in that: after construction finishes, described draining steel pipe (1) is provided with slightly expanded concrete (6) shutoff to downstream tail end from described valve (4), and described valve well (5) inside is also provided with slightly expanded concrete (6) shutoff.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420284684.8U CN203905031U (en) | 2014-05-30 | 2014-05-30 | Drainage structure used during concrete plug construction period |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420284684.8U CN203905031U (en) | 2014-05-30 | 2014-05-30 | Drainage structure used during concrete plug construction period |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203905031U true CN203905031U (en) | 2014-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420284684.8U Expired - Lifetime CN203905031U (en) | 2014-05-30 | 2014-05-30 | Drainage structure used during concrete plug construction period |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203905031U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107700440A (en) * | 2017-10-31 | 2018-02-16 | 广东水电二局股份有限公司 | A kind of diversion tunnel concrete plug and its construction method |
| CN109853490A (en) * | 2019-03-15 | 2019-06-07 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and device for temporarily lowering ecological flow in water storage period of concrete dam |
| CN112323740A (en) * | 2020-10-26 | 2021-02-05 | 长江勘测规划设计研究有限责任公司 | Integrated 'leading-blocking-leading' multifunctional temporary ecological water drainage device and method |
| CN114673125A (en) * | 2022-03-15 | 2022-06-28 | 长江岩土工程有限公司 | Plugging construction method for diversion tunnel of hydraulic engineering |
-
2014
- 2014-05-30 CN CN201420284684.8U patent/CN203905031U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107700440A (en) * | 2017-10-31 | 2018-02-16 | 广东水电二局股份有限公司 | A kind of diversion tunnel concrete plug and its construction method |
| CN109853490A (en) * | 2019-03-15 | 2019-06-07 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and device for temporarily lowering ecological flow in water storage period of concrete dam |
| CN109853490B (en) * | 2019-03-15 | 2024-03-01 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and device for temporarily lowering ecological flow in water storage period of concrete dam |
| CN112323740A (en) * | 2020-10-26 | 2021-02-05 | 长江勘测规划设计研究有限责任公司 | Integrated 'leading-blocking-leading' multifunctional temporary ecological water drainage device and method |
| CN114673125A (en) * | 2022-03-15 | 2022-06-28 | 长江岩土工程有限公司 | Plugging construction method for diversion tunnel of hydraulic engineering |
| CN114673125B (en) * | 2022-03-15 | 2024-06-04 | 长江岩土工程有限公司 | Hydraulic engineering diversion tunnel plugging construction method |
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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: 20141029 |
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| CX01 | Expiry of patent term |