CN206928250U - Canyon Area high dam hydroelectric project slag field ditch-water flow guide system - Google Patents
Canyon Area high dam hydroelectric project slag field ditch-water flow guide system Download PDFInfo
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- CN206928250U CN206928250U CN201720880709.4U CN201720880709U CN206928250U CN 206928250 U CN206928250 U CN 206928250U CN 201720880709 U CN201720880709 U CN 201720880709U CN 206928250 U CN206928250 U CN 206928250U
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Abstract
The utility model discloses that the one kind in Hydraulic and Hydro-Power Engineering field is used for Canyon Area high dam hydroelectric project slag field ditch-water flow guide system, including the checkdam being arranged in the cheuch of tributary, the checkdam is located at the upstream of Large-scale Underground Tunnels And Chambers outlet, slag area is arranged to behind the dam of checkdam, the bottom of the checkdam is provided with drainage culvert, the upstream side of checkdam is provided with scupper, and the barrel of the scupper passes through mountain forest, and outlet is positioned at the downstream in slag area in the cheuch of tributary or other Channel slopes.By the comprehensive utilization of two kinds of drainage patterns, scupper hole footpath can be reduced, shorten drainage culvert length, hence it is evident that reduce construction costs, reduce difficulty of construction, while enhance adaptability of the scupper to unfavorable geological condition.And scupper and drainage culvert can be realized periodically to be overhauled in turn, is extended system service life, be ensure that the safety of dam engineering construction period.
Description
Technical field
Hydraulic and Hydro-Power Engineering field is the utility model is related to, more particularly to one kind is used for Canyon Area high dam hydroelectric project slag field
Ditch-water flow guide system.
Background technology
At present, more large-scale high dam hydroelectric project is just being built in Southwestern China region high mountain and steep gorge area, such as double Jiangkou, Liang He
Mouth, Ye Batan, white crane beach etc., these engineering construction difficulty are big, build year limit for length, and have substantial amounts of construction waste in engineering construction
Needing to store up or transport, also need to arrange all kinds of construction auxiliary equipment, the available construction site in Dan Jinba areas does not almost have, because
This, only the tributary cheuch by the use of Dam Site blocks ditch type Dumping Sites as large-scale, but these tributary cheuch cuttings are deeper, have stream
The features such as amount is big, suspended load is more, rich withered changes in flow rate is big, ditch water process that must be scientific and reasonable to cheuch progress.
At present, the ditch water disposal plan typically used includes：(1) checkdam+scupper, (2) checkdam+drainage ditch, (3)
Checkdam+culvert pipe.But there is certain deficiency and shortcoming in these schemes：
For scheme (1)：When flow is larger, it is necessary to build big cross section water discharge tunnel, but tunnel section is greatly to geology bar
Part requires very high, and difficulty of construction is big, and cost is very high；
For scheme (2)：Drainage ditch need to take cheuch floor area, it is difficult to adapt to the topography and landform character of Canyon Area；
For scheme (3)：Southwest ditch-water more containing the suspended load such as sand, stone, branch, culvert pipe longtime running easily blocking or
Structural wear, and culvert pipe is embedded in underground and is difficult to possess maintenance condition, and culvert pipe discharge capacity is limited.
In recent years, need to build lower level outlet, cavern's spillway, emptying tunnel on the tributary ditch valleyside slope of some high dam engineerings
Or the huge underground cavity such as access tunnel, and the traffic condition in Canyon Area and cheuch is complicated, how to reduce the freight volume for slag charge, and energy
It is engineer's urgent problem to be solved to facilitate slag.It can overcome the shortcomings of traditional ditch water disposal plan it is therefore proposed that a kind of, and
The convenient ditch-water flow guide system of slag and construction method have great importance for Canyon Area high dam construction of hydropower plant.
Utility model content
To overcome drawbacks described above present in existing slag field ditch engineering of water treatment, technology to be solved in the utility model is asked
Topic is：Ditch-water, and the convenient ditch-water flow guide system of slag can smoothly be drained by providing one kind.
Technical scheme is used by the utility model solves its technical problem：
Canyon Area high dam hydroelectric project slag field ditch-water flow guide system, including the checkdam being arranged in the cheuch of tributary, it is described
Checkdam is located at the upstream of Large-scale Underground Tunnels And Chambers outlet, is arranged to slag area behind the dam of checkdam, the bottom of the checkdam is provided with
Drainage culvert, the upstream side of checkdam are provided with scupper, and the barrel of the scupper passes through mountain forest, and outlet is in the cheuch of tributary
The downstream in slag area or other Channel slopes.
It is further that the checkdam is core-wall or sloping core soil stone checkdam, its design altitude is higher than major flood season 10 years
One meets water level, and the up stream slope ratio of the checkdam is not more than 1: 1.75, and downstream slope ratio is not more than 1: 1.5.
It is further that the upstream slope-protection of the checkdam uses rock facing, 50~100cm of thickness.
It is further that the scupper input elevation met withered phase river water level elevation higher than 5 years one.
Further that the drainage culvert is divided into two sections, the first segment length meet can through the requirement of checkdam, second
Segment length meets the requirement that can pass through slag area.
It is further that the slag divides into the area of slag one and the area of slag two, the wherein area of slag two is located at the area of slag one
Top, the up stream slope ratio in slag area is not more than 1: 1.75, and downstream slope ratio is not more than 1: 1.75.
It is further that the side slope behind the checkdam dam where Large-scale Underground Tunnels And Chambers outlet is provided with collection slag platform, described
Collect the elevation of slag platform between slag area elevation and huge underground cavity outlet elevation.
It is further to be additionally provided with collection slag sidewalk in the side slope where the collection slag platform, collects slag sidewalk from collection slag platform
Extend to each construction point of Large-scale Underground Tunnels And Chambers.
The beneficial effects of the utility model are：
1st, the drainage gallery of ditch water treatment system is made up of scupper and drainage culvert, and so a part of current pass through draining
Hole water conservancy diversion, another part current can so reduce scupper hole footpath, because drainage culvert length is general remote small by culvert pipe water conservancy diversion
In scupper length, hence it is evident that reduce construction costs, reduce difficulty of construction, while enhance scupper to unfavorable geological condition
Adaptability；
2nd, scupper and drainage culvert can be realized periodically overhauls in turn, extends system service life, ensure that dam
The safety of construction phase of project；
3rd, cleverly design collects slag platform, facilitates the needs of slagging tap of Large-scale Underground Tunnels And Chambers etc., it is therefore prevented that caused by rock ballast is gone to river
Environmental issue, the freight volume of rock ballast transhipment is significantly reduced, slag is also very convenient in cheuch, significantly reduces cost.
Brief description of the drawings
Fig. 1 is the utility model structural plan arrangement schematic diagram.
Fig. 2 is the utility model checkdam and slag plot structure schematic diagram.
It is 1- tributaries cheuch to be marked in figure, 2- checkdams, 3- Large-scale Underground Tunnels And Chambers, 4- slags area, 5- drainage culverts, 6- rows
Water hole, 7- collection slag platforms, 8- collection slag sidewalks, the area of 41- slags one, the area of 42- slags two.
Embodiment
The utility model is further illustrated below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, the utility model includes the checkdam 2 being arranged in tributary cheuch 1, the checkdam 2
Slag area 4 is arranged to behind the upstream that Large-scale Underground Tunnels And Chambers 3 export, the dam of checkdam 2, the bottom of the checkdam 2 is provided with draining
Culvert pipe 5, the upstream side of checkdam 2 are provided with scupper 6, and the barrel of the scupper 6 passes through mountain forest, and outlet is located at tributary cheuch 1
The downstream in interior slag area 4 or other Channel slopes.Traditional ditch water treatment system typically all only has a kind of drainage pattern, otherwise it is logical
Scupper draining is crossed, or by drainage culvert draining, and the utility model is comprehensively utilized two kinds of drainage patterns, can be dropped
Low construction costs.During normal use, scupper 6 and drainage culvert 5 carry out draining simultaneously, and need can when being overhauled
Overhauled by the way of two kinds of pipelines in turn draining, can so extend system service life, ensure that dam engineering construction
The safety of phase.
Because checkdam 2 is to stop ditch-water, the important barrier of slag field behind dam is protected, it is therefore desirable to enough elevation and stably
Property, the utility model uses core-wall or sloping core soil stone checkdam, and its design altitude meets water level, the gear for 10 years one higher than major flood season
The up stream slope ratio of dam 2 is not more than 1: 1.75, and downstream slope ratio is not more than 1: 1.5, to ensure its stability.
In order to slow down checkdam 2 by upstream ditch-water impact erosion, rock facing, enrockment thickness are used to the upstream side of water fender 2
Spend for 50~100cm.
The input elevation of scupper 6 met withered phase river water level elevation higher than 5 years one, facilitated dry season to construct.
The drainage culvert 5 is divided into two sections, and the first segment length meets the requirement that can pass through checkdam 2, and the second segment length expires
Foot can pass through the requirement in slag area 4, and so as to reach the purpose for draining ditch-water from the bottom of slag area 4, drainage culvert 5 is divided to for two
Duan Xianhou constructs, to meet construction requirement and draining needs.
, can be to start that slag area 4 plan, in order to reach orderly slag after the completion of flow guide system construction
Purpose, the slag area 4 is divided and is located at the upper of the area 41 of slag one for the area 41 of slag one and the area 42 of slag two, the wherein area 42 of slag two
Side, the up stream slope ratio in slag area 4 are not more than 1: 1.75, and downstream slope ratio is not more than 1: 1.75.The area 41 of slag one is mainly to tributary
Cheuch 1 is filled and led up, and reaches the purpose of lay a good foundation, while also plays certain support action to checkdam 2, then again thereon
Side sets slag two area 42, upstream and downstream slope than settings can ensure the stability in slag area 4, avoid the occurrence of landslide and mud-rock flow etc.
Accident.
Further, in order to improve the operating efficiency of slag, where Large-scale Underground Tunnels And Chambers 3 export behind the dam of checkdam 2
Side slope be provided with collection slag platform 7, the elevation of the collection slag platform 7 be located at the elevation of slag 4 and the outlet elevation of Large-scale Underground Tunnels And Chambers 3 it
Between.In work progress, first debris can be deposited on collection slag platform 7, be then pushed into again in slag area 4, to reach at concentration
The purpose of reason.
Because the construction point of Large-scale Underground Tunnels And Chambers 3 is more, collection slag sidewalk 8 can be set in the side slope where the collection slag platform 7,
Collection slag sidewalk 8 extends to each construction point of Large-scale Underground Tunnels And Chambers 3 from collection slag platform 7.
The construction method of Canyon Area high dam hydroelectric project slag field ditch-water flow guide system, comprises the following steps：
A, before major project goes into operation, collection slag platform and collection slag sidewalk is built in side slope middle, meets that hydraulic tunnel etc. is large-scale
The construction blasting of cavern is slagged tap needs, and explosion rock ballast material can be piled up by modes such as drop shafts on collection slag platform, pay attention to preventing slag
Go to river, cause choking channel；
B, according to tributary cheuch surrounding geographical environmental planning scupper route, then build and complete ditch water treatment system
Scupper structure；
C, build interim earth rock cofferdam progress raceway groove by heap in the withered phase to dam, make current from scupper water conservancy diversion；
D, the drainage culvert of checkdam bottom is completed in dry work under earth rock cofferdam protection, and heap builds native stone checkdam afterwards
Reach design altitude, meet the needs that First Year flood season passes the flood period；
After e, First Year flood season, start the drainage culvert of construction slag area bottom, and contain with the draining of checkdam bottom
Pipe is connected；
F, the explosion rock ballast material for collecting slag platform is pushed into river course, heap builds the area of slag one and reaches design altitude；
G, it will dam before Second Year flood and be removed with earth rock cofferdam, and form final river course ditch water treatment system；
H, in the established area of slag one, subsequent construction can continue the rock ballast of slag sidewalk being pushed into river course, form heap
The area of slag two, reach design altitude.
When planning scupper route in stepb, it is necessary to meet the outlet of scupper positioned at the downstream in slag area or straight
Connect and import in other fluid stream channels.Construction is completed before checkdam preferably arrives in First Year flood season in step d, avoids flood season river
Construction is impacted, drags slow whole project progress, drainage culvert can be arranged as required to more, to possess enough aerial drainages
Ability.After the completion of the construction of whole ditch-water flow guide system, if system run all right, the construction in slag area can be started, it is first
First heap be provided as based on the area of slag one, the area of slag one mainly cheuch is carried out to fill and lead up compacting, make cheuch formation one it is flat
Open plane, then the area of slag two is set above it again, to meet the follow-up slag requirement of engineering, Liang Ge slags area all should
Meet the construction requirement that upstream and downstream slope ratio is not more than 1: 1.75, avoid the occurrence of the accidents such as landslide and mud-rock flow.
After the completion of the ditch water treatment system construction of whole river course, it can be carried out during its operation to inspect periodically maintenance, if
Periodic inspection is carried out to scupper, can be carried out in the withered phase, build water-retaining cofferdam at hole first so that current are fully incorporated row
Water culvert pipe, then scupper is checked or repaired；If drainage culvert occurs to block or destroyed, it can also be carried out in the withered phase
Repair, build water-retaining cofferdam at hole first so that current are fully incorporated scupper, and then drainage culvert is repaired.Phase
For a kind of traditional ditch water treatment system for only possessing drain function, the system is more flexible, and operation is more reliable and more stable, dimension
Shield is also more convenient.
Claims (8)
1. Canyon Area high dam hydroelectric project slag field ditch-water flow guide system, including the checkdam (2) being arranged in tributary cheuch (1),
The checkdam (2) is located at the upstream of Large-scale Underground Tunnels And Chambers (3) outlet, and slag area (4) is arranged to behind the dam of checkdam (2), and it is special
Sign is：The bottom of the checkdam (2) is provided with drainage culvert (5), and the upstream side of checkdam (2) is provided with scupper (6), the row
The barrel in water hole (6) passes through mountain forest, and outlet is positioned at the downstream in slag area (4) in the cheuch of tributary or other Channel slopes.
2. Canyon Area high dam hydroelectric project slag field ditch-water flow guide system as claimed in claim 1, it is characterized in that：The checkdam
(2) be core-wall or sloping core soil stone checkdam, its design altitude meets water level for 10 years one higher than major flood season, the checkdam (2) it is upper
Swim slope ratio and be not more than 1: 1.75, downstream slope ratio is not more than 1: 1.5.
3. Canyon Area high dam hydroelectric project slag field ditch-water flow guide system as claimed in claim 2, it is characterized in that：The checkdam
(2) upstream slope-protection uses rock facing, 50~100cm of thickness.
4. Canyon Area high dam hydroelectric project slag field ditch-water flow guide system as claimed in claim 1, it is characterized in that：The scupper
(6) input elevation met withered phase river water level elevation higher than 5 years one.
5. Canyon Area high dam hydroelectric project slag field ditch-water flow guide system as claimed in claim 1, it is characterized in that：The draining is contained
Pipe (5) is divided into two sections, and the first segment length meets the requirement that can pass through checkdam (2), and the second segment length meets that slag area can be passed through
(4) requirement.
6. Canyon Area high dam hydroelectric project slag field ditch-water flow guide system as claimed in claim 1, it is characterized in that：The slag area
(4) it is divided into the area of slag one (41) and the area of slag two (42), the wherein area of slag two (42) is located at the top in the area of slag one (41), slag
The up stream slope ratio in area (4) is not more than 1: 1.75, and downstream slope ratio is not more than 1: 1.75.
7. the Canyon Area high dam hydroelectric project slag field ditch-water flow guide system as described in claim 1~6 any one claim,
It is characterized in that：Side slope behind checkdam (2) dam where Large-scale Underground Tunnels And Chambers (3) outlet is provided with collection slag platform (7), the collection
The elevation of slag platform (7) is between slag area elevation and huge underground cavity outlet elevation.
8. Canyon Area high dam hydroelectric project slag field ditch-water flow guide system as claimed in claim 7, it is characterized in that：The collection slag is put down
Collection slag sidewalk (8) is additionally provided with side slope where platform (7), collection slag sidewalk (8) extends to Large-scale Underground Tunnels And Chambers from collection slag platform (7)
(3) each construction point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720880709.4U CN206928250U (en) | 2017-07-19 | 2017-07-19 | Canyon Area high dam hydroelectric project slag field ditch-water flow guide system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720880709.4U CN206928250U (en) | 2017-07-19 | 2017-07-19 | Canyon Area high dam hydroelectric project slag field ditch-water flow guide system |
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| CN206928250U true CN206928250U (en) | 2018-01-26 |
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ID=61355651
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| CN201720880709.4U Active CN206928250U (en) | 2017-07-19 | 2017-07-19 | Canyon Area high dam hydroelectric project slag field ditch-water flow guide system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165129A (en) * | 2017-07-19 | 2017-09-15 | 中国电建集团成都勘测设计研究院有限公司 | Canyon Area high dam hydroelectric project slag ditch-water flow guide system |
| CN109404019A (en) * | 2018-12-25 | 2019-03-01 | 中国电建集团成都勘测设计研究院有限公司 | Surrounding rock of chamber pays protecting system and cavern's structure in advance |
| CN110258457A (en) * | 2019-06-26 | 2019-09-20 | 中国电建集团成都勘测设计研究院有限公司 | The full hole section maintenance checkdam structure of Canyon Area hydroelectric project diversion tunnel |
-
2017
- 2017-07-19 CN CN201720880709.4U patent/CN206928250U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165129A (en) * | 2017-07-19 | 2017-09-15 | 中国电建集团成都勘测设计研究院有限公司 | Canyon Area high dam hydroelectric project slag ditch-water flow guide system |
| CN109404019A (en) * | 2018-12-25 | 2019-03-01 | 中国电建集团成都勘测设计研究院有限公司 | Surrounding rock of chamber pays protecting system and cavern's structure in advance |
| CN109404019B (en) * | 2018-12-25 | 2024-02-27 | 中国电建集团成都勘测设计研究院有限公司 | Cave surrounding rock pre-supporting system and cave structure |
| CN110258457A (en) * | 2019-06-26 | 2019-09-20 | 中国电建集团成都勘测设计研究院有限公司 | The full hole section maintenance checkdam structure of Canyon Area hydroelectric project diversion tunnel |
| CN110258457B (en) * | 2019-06-26 | 2024-02-13 | 中国电建集团成都勘测设计研究院有限公司 | Dam structure for overhauling full hole section of diversion tunnel of hydroelectric engineering in canyon area |
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