CN206052635U - For the protection arrangement of debris flow gully - Google Patents
For the protection arrangement of debris flow gully Download PDFInfo
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- CN206052635U CN206052635U CN201621069249.9U CN201621069249U CN206052635U CN 206052635 U CN206052635 U CN 206052635U CN 201621069249 U CN201621069249 U CN 201621069249U CN 206052635 U CN206052635 U CN 206052635U
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Abstract
This utility model is related to a kind of protection arrangement for debris flow gully, it is adaptable to the construction site platform arrangement in the construction of hydropower stations.This utility model includes that reinforced gabion is blocked overfall dam, earth and rockfill dam, water discharge tunnel, reinforced gabion blocks overfall dam, earth and rockfill dam along river course width arrangement, reinforced gabion blocks overfall dam positioned at the upstream side of earth and rockfill dam, the water inlet of water discharge tunnel is communicated in the river course that reinforced gabion is blocked between overfall dam and earth and rockfill dam, and the land side of earth and rockfill dam is arranged as construction site platform.This utility model is blocked overfall dam fixation riverbed by reinforced gabion and intercepts debris flow thing source, the debris flow thing source of potential outburst is intercepted by earth and rockfill dam, mud-rock flow is stagnated before earth and rockfill dam and form water stone separation, current pass through water discharge tunnel excessively stream, so as to take into account ditch water process and debris flow.
Description
Technical field
This utility model is related to a kind of protection arrangement for debris flow gully, it is adaptable to the construction in the construction of hydropower stations
Place platform arrangement.
Background technology
With the continuous development of hydroelectric project, current major part power station progressively extends to the narrow valley region of High aititude, this
A little area construction power station site conditions are relatively poor, and then take stream construction of certain gear row's measure near Project Areas to apply
It is workshop the poor method of solution engineering construction site condition conventional at present.According to research in recent years, particularly 2008
After year Wenchuan earthquake, nearby mostly to be perennial flowing water, cutting relatively deep in most stream for southwest Project Areas, and receives earthquake shadow
Ring and nearly all there is the condition for breaking out mud-rock flow, once break out mud-rock flow probably the lives and properties of the downstream people are pacified
Entirely, engineering ground facility and engineering construction safety etc. cause very big threat and loss, therefore are carrying out the same of ditch water process
When must take into mud-rock flow protection.Utilization in Hydropower Project for debris flow gully is few, at present only mudstone stream process
Scale is also less, and conventional mode is that concrete blocking dam and drainage groove combine processing scheme, but this kind of processing mode to mud
The row of rock glacier lead it is limited, and the place in blocking dam downstream can using degree it is also limited.Therefore, need to utilize for high-mountain gorge areas
The debris flow gully in construction place, need to be from the basis of ditch water process, and the principle with reference to Controlling Debris Flow (is kept off, arranges, consolidating
Etc. integrated control technique), giving treatment in accordance with the tendency of pathological change, on the spot opinion control, because evil is set up defences, and then design that a set of to take into account ditch water process and mud-rock flow anti-
The debris flow gully protection arrangement system controlled has larger realistic meaning and using value.
Utility model content
Technical problem to be solved in the utility model is：Offer one kind can process stream flowing water and can resist mud-rock flow again
Perfect, the economic protection arrangement for debris flow gully.
By solving the technical scheme that adopts of above-mentioned technical problem this utility model it is：Protection for debris flow gully is arranged
Structure, including reinforced gabion blocks overfall dam, earth and rockfill dam, water discharge tunnel, reinforced gabion blocks overfall dam, earth and rockfill dam along river course
Width arranges that reinforced gabion blocks overfall dam positioned at the upstream side of earth and rockfill dam, and the water inlet of water discharge tunnel is communicated in reinforcing bar
The river course that gabion is blocked between overfall dam and earth and rockfill dam, the land side of earth and rockfill dam are arranged as construction site platform.
It is further：Reinforced gabion overfall dam quantity of blocking is at least two pieces.
It is further：Reinforced gabion blocks overfall dam quantity for two pieces, and the reinforced gabion positioned at upstream side is blocked overflow
Permeable rockfill is provided with dam.
It is further：Reinforced gabion overfall dam of blocking includes multiple rectangular reinforced gabions, two neighboring reinforcing bar stone
By steel wire rope colligation, the block top surface of overfall dam of reinforced gabion is ladder-like arranged cage in horizontally disposed, both sides, reinforcing bar stone
The block land side of overfall dam of cage is provided with protection-apron, and the block top surface of overfall dam, reinforced gabion of reinforced gabion is blocked the overfall dam back of the body
The step structure upper surface of water side, the top surface of protection-apron are equipped with Anti-scouring structure.
It is further：The dam foundation of earth and rockfill dam, the side that meets water are arranged with filter protection layer, in the filter protection layer of the dam foundation also
Geotextiles are disposed with, the filter protection layer outer lower portion of the side that meets water is provided with gravelly soil sloping core, top and is provided with geomembrane, rubble
The second filter protection layer is disposed with the outside of native sloping core, slope protection layer on the outside of geomembrane, is disposed with.
It is further：The water inlet of water discharge tunnel is disposed with intake tower, and intake tower has communicated drainage tunnel water inlet
Intake antrum, the side that meets water of intake tower is provided with the inlet openings of multiple connection intake antrums.
It is further：Inlet opening rectangular array arrangement.
It is further：The overfall of connection intake antrum is provided with the top of intake tower, overfall is L-type structure, one
Side is located at the side that meets water of intake tower, another side and is located at the top surface of intake tower.
It is further：Intake tower is reinforced concrete frame structure.
It is further：Water discharge tunnel be gateway opening type, tunneling boring reinforced concrete lining layer.
The beneficial effects of the utility model are：Overfall dam fixation riverbed is blocked by reinforced gabion and debris flow is intercepted
Thing source, intercepts the debris flow thing source of potential outburst by earth and rockfill dam, mud-rock flow is stagnated before earth and rockfill dam and forms water stone point
From current pass through water discharge tunnel excessively stream, so as to take into account ditch water process and debris flow.Wherein reinforced gabion is blocked overfall dam
Dam body is permeable, dam facing energy overflow, formed dam body single reinforced gabion can gather materials on the spot, simple, cheap, whole dam of constructing
The construction of body is almost destroyed to stream without the need for dam site foundation excavation, greatly reducing.In addition, reinforced gabion is blocked, overfall dam can
Multiple Protective Structure is arranged as required to, to improve protective capacities；The water inlet of water discharge tunnel can also arrange intake tower, intake tower
Shi Sha layering drainings of blocking will be played a part of, destruction of the mud-rock flow bed load to water discharge tunnel can be substantially reduced, draining is reduced
Tunnel high maintenance cost and blocking risk, substantially reduce mud-rock flow and change its course and cause the risk of disaster；Earth and rockfill dam can be with construction waste
Heap is built and is formed, the impervious form combined with gravelly soil sloping core using domatic geomembrane, and dam foundation gamut laying geotextiles are carried out instead
Filter protection, more effectively can intercept to mud-rock flow.This utility model is arranged by the gear of above-mentioned several heavy buildings, is greatly improved
Whole debris flow gully protection system function, and the system reproducible suitability is wide, and reinforced gabion is blocked overfall dam, native stone
Dam, intake tower investment it is relatively low, to Yushan Hill Gao Gushen, construction site condition difference area build power station when, which is in mud
Rock glacier ditch construction place has larger realistic meaning and using value.
Description of the drawings
Fig. 1 is horizontal layout schematic diagram of the present utility model.
Fig. 2 is that reinforced gabion is blocked overfall dam cross-sectional structure schematic diagram one.
Fig. 3 is that reinforced gabion is blocked overfall dam cross-sectional structure schematic diagram two.
Fig. 4 is intake tower vertical section structure schematic diagram.
Fig. 5 is intake tower upstream face structural representation.
Fig. 6 is water discharge tunnel generalized section.
Fig. 7 is earth and rockfill dam cross-sectional structure schematic diagram.
Labelling in figure：Block overfall dam, 2- earth and rockfill dams, 3- water discharge tunnels, 4- construction sites platform, 5- of 1- reinforced gabions enters
The permeable rockfill of water tower, 11-, 12- reinforced gabions, 13- protection-aprons, 14- Anti-scouring structures, 21- filter protection layers, 22- geotextiles,
23- gravelly soil sloping cores, 24- geomembranes, 25- the second filter protection layers, 26- slope protection layers, 51- intake antrums, 52- inlet openings,
53- overfalls.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
In figure, direction shown in arrow is water (flow) direction.
As shown in figure 1, this utility model includes that reinforced gabion is blocked overfall dam 1, earth and rockfill dam 2, water discharge tunnel 3, reinforcing bar stone
Cage blocks overfall dam 1, earth and rockfill dam 2 along river course width arrangement, and reinforced gabion blocks overfall dam 1 positioned at the upper of earth and rockfill dam 2
Trip side, the water inlet of water discharge tunnel 3 are communicated in the river course that reinforced gabion is blocked between overfall dam 1 and earth and rockfill dam 2, earth and rockfill dam 2
Land side is arranged as construction site platform 4.As shown in fig. 6, water discharge tunnel 3 is preferably gateway opening type, tunneling boring armored concrete
Lining cutting.Construction site platform 4 can be backfilled to be formed with waste.
This utility model is blocked the fixation riverbed of overfall dam 1 by reinforced gabion and intercepts debris flow thing source, by soil
Masonry dam 2 intercepts the debris flow thing source of potential outburst, mud-rock flow is stagnated before earth and rockfill dam 2 and forms water stone separation, and current lead to
3 excessively stream of water discharge tunnel is crossed, so as to take into account ditch water process and debris flow.
Reinforced gabion overfall dam 1 of blocking can be arranged as required to Multiple Protective Structure, to improve protective capacities, i.e.,：Reinforcing bar
Gabion 1 quantity of overfall dam of blocking is at least two pieces.Preferred implementation is：Reinforced gabion blocks 1 quantity of overfall dam for two pieces, position
Reinforced gabion in upstream side is blocked, and overfall dam 1 is interior to be provided with permeable rockfill 11.It is general to block overfall dam 1 in the reinforced gabion
Arrange must compare it is high in the case of, in order to Cai reduce reinforced gabion quantities in the permeable rockfill of its internal landfill 11.Conventional
Reinforced gabion block overfall dam 1 structure as shown in Fig. 2 the reinforced gabion for being provided with permeable rockfill 11 is blocked overfall dam 1
Structure is as shown in Figure 3.
As shown in Figure 2 and Figure 3, the block preferred implementation of overfall dam 1 of reinforced gabion is：Reinforced gabion is blocked overfall dam 1
Including multiple rectangular reinforced gabions 12, two neighboring reinforced gabion 12 by steel wire rope colligation, block overflow by reinforced gabion
The top surface on dam 1 is ladder-like arranged in horizontally disposed, both sides, and the block land side of overfall dam 1 of reinforced gabion is provided with protection-apron
13, the block top surface of overfall dam 1, reinforced gabion of reinforced gabion is blocked the step structure upper surface of 1 land side of overfall dam, protection-apron
13 top surface is equipped with Anti-scouring structure 14.The block land side of overfall dam 1 of reinforced gabion forms overflow groove structure, and overflow
Rooved face has Anti-scouring structure 14, and more effectively mud-rock flow can be intercepted, while reinforced gabion is blocked, overfall dam 1 is overall
Structure is also more stable.Reinforced gabion overfall dam 1 can block solid matter, solid bed, reduce ditch bed longitudinal gradient, slow down mud-rock flow stream
Speed, the impulsive force for reducing mud-rock flow, dam body again can be permeable, while unnecessary current can also from the overflow launder excessively stream of overfall dam, and
And cost is far below the conventional concrete dam of same scale.The height of reinforced gabion overfall dam 1 according to blocking throughout the year or can set
The total value that meter standard reappears year is fixed.
As shown in fig. 7, the preferred implementation of earth and rockfill dam 2 is：The dam foundation of earth and rockfill dam 2, the side that meets water are arranged with anti-filter guarantor
Sheath 21, there also is provided geotextiles 22 in the filter protection layer 21 of the dam foundation, and 21 outer lower portion of filter protection layer of the side that meets water is arranged
There is gravelly soil sloping core 23, top to be provided with geomembrane 24, the outside of gravelly soil sloping core 23 is disposed with the second filter protection layer 25, soil
The outside of work film 24 is disposed with slope protection layer 26.To ensure anti-seepage effect, gravelly soil should partly be stretched in the lower end of geomembrane 24
In the body of wall of sloping core 23.Once reinforced gabion is blocked, overfall dam 1 becomes silted up completely, lets out under mud-rock flow, and earth and rockfill dam 2 just can intercept mud-rock flow simultaneously
Mud-rock flow is stagnated before earth and rockfill dam 2 and form water stone separation, it is to avoid downstream erosion damage is caused in mud-rock flow and flow direction downstream.
Wherein, upper pond level and block when 2 height of earth and rockfill dam leads mud-rock flow water body peak flow under design standard off according to water discharge tunnel 3
Mud-rock flow aggregate storage capacity is fixed.Earth and rockfill dam 2 can be built with construction waste heap and be formed, and be combined with gravelly soil sloping core 23 using domatic geomembrane 24
Impervious form, the dam foundation gamut laying geotextiles 22 carry out filter protection, more effectively mud-rock flow can be intercepted.
Water discharge tunnel 3 is unique drainage gallery in whole debris flow gully protection system, therefore the safety fortune of water discharge tunnel 3
Row it is critical that.In order to avoid it is overproof or rapidly mud-rock flow passage metallic substance enter water discharge tunnel 3, make water discharge tunnel
3 suffer wear-out failure, and then need frequently to overhaul, and cause the maintenance cost of water discharge tunnel 3 very high, or even a large amount of materials of debris flow
May also result in water discharge tunnel 3 to block, make mud-rock flow change its course, mud-rock flow changes its course and will cause what is can not estimated to downstream construction site
Very big disaster, therefore intake tower 5 is disposed with 3 import of water discharge tunnel, as shown in Figure 4, Figure 5, the concrete structure of intake tower 5 is：
Intake tower 5 has the intake antrum 51 of 3 water inlet of communicated drainage tunnel, and the side that meets water of intake tower 5 is provided with multiple connection intake antrums
51 inlet opening 52, wherein 52 preferred rectangular array of inlet opening are arranged.Intake tower 5 is layered the work of draining by the Shi Sha that blocks is played
With can substantially reduce destruction of the mud-rock flow bed load to water discharge tunnel, reduce water discharge tunnel high maintenance cost and blocking risk, greatly
Big reduction mud-rock flow changes its course and causes the risk of disaster.Intake tower 5 is preferably reinforced concrete frame structure.
Preferably, the top of intake tower 5 is provided with the overfall 53 of connection intake antrum 51, and overfall 53 is L-type structure, its
One side is located at the side that meets water of intake tower 5, another side and is located at the top surface of intake tower 5, and the top surface of intake tower 5 is preferably open
Structure.The top of intake tower 5 arranges open type overfall, can preferably play earial drainage effect.
Claims (10)
1. the protection arrangement of debris flow gully is used for, it is characterised in that：Block overfall dam (1), earth and rockfill dam including reinforced gabion
(2) overfall dam (1), earth and rockfill dam (2) are blocked along river course width arrangement, reinforced gabion in, water discharge tunnel (3), reinforced gabion
Overfall dam (1) block positioned at the upstream side of earth and rockfill dam (2), the water inlet of water discharge tunnel (3) is communicated in reinforced gabion and blocks overflow
River course between dam (1) and earth and rockfill dam (2), the land side of earth and rockfill dam (2) are arranged as construction site platform (4).
2. the protection arrangement of debris flow gully is used for as claimed in claim 1, it is characterised in that：Reinforced gabion is blocked overflow
Dam (1) quantity is at least two pieces.
3. the protection arrangement of debris flow gully is used for as claimed in claim 2, it is characterised in that：Reinforced gabion is blocked overflow
Dam (1) quantity is two pieces, and the reinforced gabion positioned at upstream side is blocked, and overfall dam (1) is interior to be provided with permeable rockfill (11).
4. the protection arrangement of debris flow gully is used for as claimed in claim 1, it is characterised in that：Reinforced gabion is blocked overflow
Dam (1) includes multiple rectangular reinforced gabions (12), and two neighboring reinforced gabion (12) is by steel wire rope colligation, reinforced gabion
The top surface of overfall dam (1) of blocking is ladder-like arranged in horizontally disposed, both sides, and reinforced gabion is blocked the backwater of overfall dam (1)
Side is provided with protection-apron (13), and the block top surface of overfall dam (1), reinforced gabion of reinforced gabion is blocked the rank of overfall dam (1) land side
Ladder-shaper structure upper surface, the top surface of protection-apron (13) are equipped with Anti-scouring structure (14).
5. the protection arrangement for debris flow gully as described in any one in Claims 1 to 4, it is characterised in that：Soil
The dam foundation of masonry dam (2), the side that meets water are arranged with filter protection layer (21), there also is provided geotechnique in the filter protection layer (21) of the dam foundation
Cloth (22), filter protection layer (21) outer lower portion of the side that meets water are provided with gravelly soil sloping core (23), top and are provided with geomembrane
(24) the second filter protection layer (25) is disposed with the outside of gravelly soil sloping core (23), is disposed with the outside of geomembrane (24) domatic
Protective layer (26).
6. the protection arrangement for debris flow gully as described in any one in Claims 1 to 4, it is characterised in that：Row
The water inlet of water tunnel (3) is disposed with intake tower (5), intake antrum of the intake tower (5) with communicated drainage tunnel (3) water inlet
(51), the side that meets water of intake tower (5) is provided with the inlet opening (52) of multiple connections intake antrum (51).
7. the protection arrangement of debris flow gully is used for as claimed in claim 6, it is characterised in that：Inlet opening (52) is rectangular
Array is arranged.
8. the protection arrangement of debris flow gully is used for as claimed in claim 6, it is characterised in that：The top of intake tower (5)
The overfall (53) of connection intake antrum (51) is provided with, overfall (53) is L-type structure, and one side is located at intake tower (5)
Meet water side, another side be located at intake tower (5) top surface.
9. the protection arrangement of debris flow gully is used for as claimed in claim 6, it is characterised in that：Intake tower (5) is reinforcing bar
Concrete frame structure.
10. the protection arrangement for debris flow gully as described in any one in Claims 1 to 4, it is characterised in that：Row
Water tunnel (3) is gateway opening type, tunneling boring reinforced concrete lining layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621069249.9U CN206052635U (en) | 2016-09-21 | 2016-09-21 | For the protection arrangement of debris flow gully |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621069249.9U CN206052635U (en) | 2016-09-21 | 2016-09-21 | For the protection arrangement of debris flow gully |
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| Publication Number | Publication Date |
|---|---|
| CN206052635U true CN206052635U (en) | 2017-03-29 |
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ID=58365866
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621069249.9U Active CN206052635U (en) | 2016-09-21 | 2016-09-21 | For the protection arrangement of debris flow gully |
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| CN (1) | CN206052635U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106192871A (en) * | 2016-09-21 | 2016-12-07 | 中国电建集团成都勘测设计研究院有限公司 | Protection arrangement for debris flow gully |
| CN112813921A (en) * | 2021-01-06 | 2021-05-18 | 西南科技大学 | Mud-rock flow water-stone separation and storage system |
| TWI766820B (en) * | 2021-11-12 | 2022-06-01 | 國立高雄科技大學 | Earth-rock flow remediation structure of Yexi |
-
2016
- 2016-09-21 CN CN201621069249.9U patent/CN206052635U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106192871A (en) * | 2016-09-21 | 2016-12-07 | 中国电建集团成都勘测设计研究院有限公司 | Protection arrangement for debris flow gully |
| CN112813921A (en) * | 2021-01-06 | 2021-05-18 | 西南科技大学 | Mud-rock flow water-stone separation and storage system |
| CN112813921B (en) * | 2021-01-06 | 2022-06-07 | 西南科技大学 | Mud-rock flow water-stone separation and storage system |
| TWI766820B (en) * | 2021-11-12 | 2022-06-01 | 國立高雄科技大學 | Earth-rock flow remediation structure of Yexi |
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