CN205776083U - A kind of chain the guarding wave slope protection prefabricated section system - Google Patents
A kind of chain the guarding wave slope protection prefabricated section system Download PDFInfo
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- CN205776083U CN205776083U CN201620610902.1U CN201620610902U CN205776083U CN 205776083 U CN205776083 U CN 205776083U CN 201620610902 U CN201620610902 U CN 201620610902U CN 205776083 U CN205776083 U CN 205776083U
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Abstract
This utility model discloses a kind of chain the guarding wave slope protection prefabricated section system, and it is included in the gradient and is equipped with the prefabricated slope-protection block I (1) in I shape less than on the guarding wave slope protection (3) of 1:2；It is characterized in that: described prefabricated slope-protection block I (1) includes the edge of a wing (1.1), web (1.2), groove segment (1.3), inclined-plane, the edge of a wing (1.4), chamfering (1.5)；The described edge of a wing (1.1) is positioned at the top and bottom of described prefabricated slope-protection block I (1), described web (1.2) is positioned at the centre of described prefabricated slope-protection block I (1), and described inclined-plane, the edge of a wing (1.4) is positioned at the changeover portion between the described edge of a wing (1.1) and web (1.2)；Which overcome prefabricated section of the prior art typically to use mould manually to pour to form, the shortcoming that bigger gap easily occurs between prefabricated section after laying, there is the mutual snapping of small size block, will not be because of the damage of single block, cause the slip of other block, it is simple to the advantage that the maintenance of protective slope structure is changed.
Description
Technical field
This utility model belongs to the Hydraulic and Hydro-Power Engineering technical field such as dam and dyke, is more specifically a kind of chain
The guarding wave slope protection prefabricated section system.
Background technology
In more than 90,000 reservoir dam of China, more than 95% is earth and rockfill dam, and earth and rockfill dam upstream is domatic is washed away work by wave
With taking effective safeguard procedures.Additionally, dyke building faces bank protection protection problem too.
The slope protection form conventional for above-mentioned engineering has: cast-in-place concrete bank protection, concrete precast block bank protection, stone masonry protect
Slope and dry stone pitching etc..Cast-in-place concrete bank protection and stone masonry bank protection, the ability adapting to dam deformation is poor, easily occurs out
Split, misplace the problems such as destruction；Dry stone pitching, mainly by manually building by laying bricks or stones, compares and takes a lot of work, and speed of application is relatively slow, and runs for many years
The easy air slaking of block stone, overall aesthetics is poor；The ability that concrete precast block bank protection adapts to dam deformation is strong, more attractive in appearance after laying,
The most welcome.
For concrete precast block bank protection, difficulty of construction and construction quality are often by bank protection prefabricated section monolithic weight
Affect bigger.For normal hexagonal prefabricated section, because its Parallel to the flow direction size is shorter, in order to meet wave cut requirement, single
Block thickness is the biggest, affects construction investment, and its mutual gmatjpdumamics is the poorest, and prefabricated section typically uses mould manually to pour
Form, easily occur between prefabricated section after laying bigger gap, affecting whole structure.
Summary of the invention
The purpose of this utility model is to overcome the weak point of above-mentioned background technology, and proposes a kind of chain the guarding wave slope protection
Prefabricated section system.
A kind of chain the guarding wave slope protection prefabricated section system of this utility model, it is included in the gradient less than on the guarding wave slope protection of 1:2
It is equipped with the prefabricated slope-protection block I in I shape；
It is characterized in that: described prefabricated slope-protection block I includes the edge of a wing, web, groove segment, inclined-plane, the edge of a wing, chamfering；Described
The edge of a wing is positioned at the top and bottom of described prefabricated slope-protection block I, and described web is positioned at the centre of described prefabricated slope-protection block I,
The described inclined-plane, edge of a wing changeover portion between the described edge of a wing and web；Upper surface at described prefabricated slope-protection block I
Outer edge is provided with chamfering；The described inclined-plane, the edge of a wing at two ends forms groove segment with the side of described web.
In technique scheme: the twice of the length on a length of described edge of a wing of described web.
In technique scheme: described prefabricated slope-protection block I joins end to end and is laid on described the guarding wave slope protection, and
In the described prefabricated slope-protection block I that left and right is adjacent, the edge of a wing of the top and bottom of two prefabricated slope-protection block I of side is stuck in another
On the groove segment in prefabricated slope-protection block I described in side.
In technique scheme: a length of 80 centimetres of described prefabricated slope-protection block I, width is 30 centimetres, and height is 20
Centimetre；A length of 16 centimetres of the described edge of a wing, inclined-plane, the edge of a wing is 8 centimetres；Web is 32 centimetres.
In technique scheme: when the gradient is more than the guarding wave slope protection of 1:2, the lower surface of described prefabricated slope-protection block I
Being provided with groove segment region, described groove segment region includes the web groove section being positioned at the described web back side and along two ends institute
The back side, the edge of a wing excavation stated, and extend to the edge of a wing groove segment on described inclined-plane, the edge of a wing.
In technique scheme: the super many described prefabricated slope-protection block I's of cutting depth in described groove segment region
/ 2nd of height；Described web groove section and described web length, width are identical；Opening of described edge of a wing groove segment
Dig starting point A more than 1/2nd of edge of a wing length.
This utility model has following technological merit: 1, this utility model is washed away shadow for earth and rockfill dam upstream dam slope by stormy waves
Ring big, by parallel with water (flow) direction for the web laying direction of prefabricated section, owing to the length in prefabricated section web direction is much larger than width,
Its features of shape can be made full use of, reduce stormy waves and wash away the bank protection thickness calculating requirement, cost saving；The most single prefabricated
Block weight reduces, and reduces difficulty of construction.
2, this utility model is provided with two different form of I shape slope-protection block, practicality for domatic different gradient
By force, applied widely.
3, this utility model uses the flexible connection mode of space articulating interlocking, enhances the monolithic stability of protective slope structure
Property, it is possible to it is effective against the external force such as settlement deformation, frost heave, wave cut, earthquake and destroys.
4, this utility model structure is relatively easy, uses the compacting of machine scene, and not only work efficiency is high, can accelerating construction progress,
And the prefabricated section consistent size of machine pressing, block quality is good, without jointing between block after laying, smooth attractive in appearance.
5, this utility model uses the mutual snapping of small size block, will not cause other block because of the damage of single block
The slip of body, it is simple to the maintenance of protective slope structure is changed.
Accompanying drawing explanation
Fig. 1 is that the gradient is less than the structural representation of prefabricated slope-protection block during 1:2.
Fig. 2 is the structural representation of the gradient prefabricated slope-protection block when being more than 1:2.
Fig. 3 is the structural representation side view of prefabricated slope-protection block.
Fig. 4 is the side view of the gradient prefabricated slope-protection block when being more than 1:2.
Fig. 5 is the rearview of the gradient prefabricated slope-protection block when being more than 1:2.
Fig. 6 is the mould schematic diagram of prefabricated slope-protection block.
Fig. 7 is the structural representation of existing prefabricated slope-protection block.
Fig. 8 be prefabricated slope-protection block specifically at the mounting structure schematic diagram of bank protection.
Fig. 9 is the concrete structure schematic diagram in Fig. 8 at B.
In figure: prefabricated slope-protection block I1, the edge of a wing 1.1, edge of a wing groove segment 1.1.1, web 1.2, web groove section 1.2.1, recessed
Groove section 1.3, inclined-plane, the edge of a wing 1.4, chamfering 1.5, groove segment region 2, the guarding wave slope protection 3.
Detailed description of the invention
Describe performance of the present utility model below in conjunction with the accompanying drawings in detail, but they are not intended that of the present utility model
Limit, the most for example, simultaneously by illustrating that advantage of the present utility model will become clearer from easy to understand.
With reference to shown in Fig. 1-8: a kind of chain the guarding wave slope protection prefabricated section system of this utility model, it is included in the gradient less than 1:
The prefabricated slope-protection block I1 in I shape it is equipped with on the guarding wave slope protection 3 of 2；It is characterized in that: described prefabricated slope-protection block I1 includes
The edge of a wing 1.1, web 1.2, groove segment 1.3, inclined-plane, the edge of a wing 1.4, chamfering 1.5；The described edge of a wing 1.1 is positioned at described prefabricated bank protection
The top and bottom of block I1, described web 1.2 is positioned at the centre of described prefabricated slope-protection block I1, described inclined-plane, the edge of a wing 1.4
Changeover portion between the described edge of a wing 1.1 and web 1.2；Outer edge at the upper surface of described prefabricated slope-protection block I1 sets
It is equipped with chamfering 1.5；The described inclined-plane, the edge of a wing 1.4 at two ends forms groove segment 1.3 with the side of described web 1.2；Described
The twice of the length on a length of described edge of a wing 1.1 of web 1.2；Described prefabricated slope-protection block I1 join end to end be laid in described
The guarding wave slope protection 3 on, and adjacent in left and right described in prefabricated slope-protection block I1 in, the upper end of two prefabricated slope-protection block I1 of side
It is stuck on the web 1.2 in the prefabricated slope-protection block I1 described in opposite side with the edge of a wing 1.1 of lower end；Described prefabricated slope-protection block I length
Degree is 80 centimetres, and width is 30 centimetres, and height is 20 centimetres；A length of 16 centimetres of the described edge of a wing 1.1, inclined-plane, the edge of a wing 1.4
It it is 8 centimetres；Web 1.2 is 32 centimetres.
When the gradient is more than the guarding wave slope protection 3 of 1:2, the lower surface of described prefabricated slope-protection block I1 is provided with groove segment region
2, described groove segment region 2 includes being positioned at web groove section 1.2.1 at described web 1.2 back side and along the wing described in two ends
Edge 1.1 back side is excavated, and extends to the edge of a wing groove segment 1.1.1 on described inclined-plane, the edge of a wing 1.4.
/ 2nd (H of the cutting depth in described groove segment region 2 height less than described prefabricated slope-protection block I1
≯1/2D)；Described web groove section 1.2.1 and described web 1.2 length, width are identical；Described edge of a wing groove segment
1.1.1 excavation starting point A is more than 1/2nd (e ≮ 1/2a) of the edge of a wing 1.1 length.
This utility model also includes the construction method of a kind of chain the guarding wave slope protection prefabricated section system, comprises the steps；
1., bank protection prefabricated section is made: rationally select concrete mix, according to joining according to prefabricated slope-protection block I1 strength grade
After composition and division in a proportion job mix, material will be mixed and stirred and import collecting bin, then will mix and stir and expect that horizontal sliding, in steel form, is suppressed by top hydraulic plate
Closely knit aftershaping, produces and designs the prefabricated slope-protection block I1 being consistent；
2., prefabricated section maintenance: prefabricated slope-protection block I1, after machine pressing molding, is manually transported to smooth solid precasting yard
Ground, after the intensity of prefabricated slope-protection block I1 reaches 70%, can transport to dam facing；
3., dam facing finishing: clear up the guarding wave slope protection 3 is domatic, remove the foreign material such as weeds, tree root, rubble, suitably repair
Dam slope face.
4. laying Controling network, is determined: utilize total powerstation and hydrolevelling device to measure location, the chi to the guarding wave slope protection 3
Little progress row is checked, and measuring goes out to lay horizontal line and the Controling network of datum line composition of prefabricated section, and does control point corresponding easy
In the mark identified, determine the construction surface size of the guarding wave slope protection 3, in order to determine the quantity of the slope-protection block of laying；
5., bedding material is laid: being equipped with bed course on the guarding wave slope protection 3 in advance, bedding material selects particle diameter D=1mm～20mm
And D50=10mm, < sand gravel of 5%, fills on the guarding wave slope protection 3 and is compacted clay content, and levelling the guarding wave slope protection 3, after compacting
Bed course thickness 10cm；
Compacting back pad layer thickness 10cm, the effect laying bed course is mainly the most levelling domatic 2. reverse filter effect, prevents in bank protection
Soil particle is taken away by current；
6., prefabricated section is laid: during laying, the Controling network according to measured in advance is laid, according to from bottom to top during laying
Laying order is artificial lays prefabricated slope-protection block I1；
7., locally vacancy casting concrete: the edge that the guarding wave slope protection 3 is difficult to be laid use with prefabricated slope-protection block I1 with
Equicohesive concrete is filled up, so that after Pu Sheing, the guarding wave slope protection 3 is domatic reaches smooth aesthetic integrity requirement.
Step 6. in；Web 1.2 in described prefabricated slope-protection block I1 lay towards with current flow to parallel, and one
The edge of a wing 1.1 of the top and bottom of two prefabricated slope-protection block I1 of side is stuck in the groove in the prefabricated slope-protection block I1 described in opposite side
In section 1.3.
Step 6. in；During the guarding wave slope protection 3 described in laying；Described the guarding wave slope protection 3 is domatic meets injustice in the range of 2m
Whole degree controls between-1 to 1cm.
Application example
According to " rolling earth-rock dam design specification " (SL274-2001), to concrete or the reinforcing bar with outseam
Concrete slab revetment, when dam slope gradient Coefficient m=2～5, the plate thickness stable under buoyancy of plate can be pressed
In formula: η coefficient, assembled protection slab is taken 1.1；
hPCumulative frequency is the wave height of 1%, m；
LmMean wavelength, m；
B is long to plate along dam slope, m；
ρcThe density of plate, t/m3,
ρwThe density of water, t/m3；
The gradient coefficient on the mono-slope of m, if toe is equal to α, i.e. equal to cot α.
According to modular formula, in same engineering, under identical design conditions, t ∝ b-1/3, i.e. concrete revetment block thickness
T and slope-protection block along dam slope to the long b of plate1/3Being inversely proportional to, namely slope-protection block is the biggest to the long b of plate along dam slope, thickness t is the least for slope-protection block.
Note: for same engineering, hP、Lm、m、ρc、ρw, η be identical, t ∝ b-1/3。
According to above-mentioned formula, bank protection thickness is bigger by b (along dam slope to plate length) impact；Through measuring and calculating, use this utility model
I shape prefabricated section, long to plate because increasing along dam slope, reduce along axis of dam direction width, its thickness is more pre-than traditional hexagon
Clamp dog can reduce nearly 20%, reduces construction investment accordingly.
Certain large reservoir earth and rockfill dam runs for many years, and former dry stone pitching structural failure is serious, need to carry out consolidation process.Consider
By force and being prone to construction to concrete precast block bank protection durability, design proposes to use protecting of the chain concrete precast block of I shape
Slope mode, this engineering prefabricated slope-protection block a size of length L=80cm, width E=30cm, highly D=20cm, edge of a wing length a=
16cm, web length b=32cm, web width f=18cm, edge of a wing surface width c=8cm, degree of depth h=1cm of chamfering, implement
Rear dam facing is smooth attractive in appearance, achieves extraordinary protection effect.
The gradient of groove corresponding at inclined-plane, the edge of a wing 1.4 excavation is less than 1:1；
If taking the hexagon prefabricated section of identical weight, prefabricated section perspective view (such as Fig. 7).According to " compaction type
Earth and rockfill dam design rule " (SL274-2001) appendix A .2.3 concrete revetment thickness equations can be calculated and meet the six of condition
The size of limit shape prefabricated section is length of side R=25cm, thickness J=24cm, and the I shape prefabricated section thickness under equal design conditions
Only needing 20cm, in the case of slope-protection block weight is identical, meet same anti-impact anti-floating effect, slope-protection block thickness reduces
20%.Simultaneously compared to hexagon slope-protection block, I shape slope-protection block uses the flexible connection mode of space articulating interlocking, enhances
The stability in the large of protective slope structure, it is possible to be effective against the external force such as settlement deformation, frost heave, wave cut, earthquake and destroy.
I shape is added up with hexagonal laying quantity required
Wherein I shape prefabricated slope-protection block I needs cost about 10,000 yuan altogether, but traditional hexagon slope-protection block needs about 1
11000 yuan, the economic worth also demonstrating I shape prefabricated slope-protection block I is high, when the most large-area laying, has very well
The prospect of popularization.
Above-mentioned unspecified part is prior art.
Claims (6)
1. a chain the guarding wave slope protection prefabricated section system, it is included in the gradient and is equipped with in work less than on the guarding wave slope protection (3) of 1:2
The prefabricated slope-protection block I (1) of font；
It is characterized in that: described prefabricated slope-protection block I (1) includes that the edge of a wing (1.1), web (1.2), groove segment (1.3), the edge of a wing are oblique
Face (1.4), chamfering (1.5)；The described edge of a wing (1.1) is positioned at the top and bottom of described prefabricated slope-protection block I (1), described
Web (1.2) is positioned at the centre of described prefabricated slope-protection block I (1), and described inclined-plane, the edge of a wing (1.4) is positioned at the described edge of a wing
(1.1) changeover portion and between web (1.2)；Outer edge at the upper surface of described prefabricated slope-protection block I (1) is provided with chamfering
(1.5)；The described inclined-plane, the edge of a wing (1.4) at two ends forms groove segment (1.3) with the side of described web (1.2).
One the most according to claim 1 chain the guarding wave slope protection prefabricated section system, it is characterised in that: described web
(1.2) twice of the length on a length of described edge of a wing (1.1).
One the most according to claim 1 chain the guarding wave slope protection prefabricated section system, it is characterised in that: described prefabricated bank protection
Block I (1) joins end to end and is laid on described the guarding wave slope protection (3), and adjacent in left and right described in prefabricated slope-protection block I (1) in,
The edge of a wing (1.1) of the top and bottom of two prefabricated slope-protection block I (1) of side is stuck in the prefabricated slope-protection block I (1) described in opposite side
In groove segment (1.3) on.
4. according to the chain the guarding wave slope protection prefabricated section system of the one described in any one in claim 1-3, it is characterised in that: institute
A length of 80 centimetres of the prefabricated slope-protection block I stated, width is 30 centimetres, and height is 20 centimetres；The described edge of a wing (1.1) a length of
16 centimetres, inclined-plane, the edge of a wing (1.4) are 8 centimetres；Web (1.2) is 32 centimetres.
One the most according to claim 1 chain the guarding wave slope protection prefabricated section system, it is characterised in that: in the gradient more than 1:2
The guarding wave slope protection (3) time, the lower surface of described prefabricated slope-protection block I (1) is provided with groove segment region (2), described groove segment
Region (2) includes the web groove section (1.2.1) being positioned at described web (1.2) back side and along the edge of a wing (1.1) described in two ends
The back side is excavated, and extends to the edge of a wing groove segment (1.1.1) on described inclined-plane, the edge of a wing (1.4).
One the most according to claim 5 chain the guarding wave slope protection prefabricated section system, it is characterised in that: described groove segment district
The cutting depth in territory (2) is less than 1/2nd of described prefabricated slope-protection block I (1) height；Described web groove section
(1.2.1) identical with described web (1.2) length, width；Excavation starting point A of described edge of a wing groove segment (1.1.1) is more than
/ 2nd of the edge of a wing (1.1) length.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620610902.1U CN205776083U (en) | 2016-06-21 | 2016-06-21 | A kind of chain the guarding wave slope protection prefabricated section system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620610902.1U CN205776083U (en) | 2016-06-21 | 2016-06-21 | A kind of chain the guarding wave slope protection prefabricated section system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105951676A (en) * | 2016-06-21 | 2016-09-21 | 长江勘测规划设计研究有限责任公司 | Interlocked wave-resistance protection slope precast block system and construction method |
| CN108411851A (en) * | 2018-01-25 | 2018-08-17 | 浙江水利水电学院 | The construction method of area's sloping breakwater concrete slab pavement structure is enclosed and cultivated in a kind of river sea |
-
2016
- 2016-06-21 CN CN201620610902.1U patent/CN205776083U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105951676A (en) * | 2016-06-21 | 2016-09-21 | 长江勘测规划设计研究有限责任公司 | Interlocked wave-resistance protection slope precast block system and construction method |
| CN108411851A (en) * | 2018-01-25 | 2018-08-17 | 浙江水利水电学院 | The construction method of area's sloping breakwater concrete slab pavement structure is enclosed and cultivated in a kind of river sea |
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