CN107700504A - Based on the slope rock river bed steel cofferdam for vacantly hanging pin processing structure - Google Patents
Based on the slope rock river bed steel cofferdam for vacantly hanging pin processing structure Download PDFInfo
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- CN107700504A CN107700504A CN201710890319.XA CN201710890319A CN107700504A CN 107700504 A CN107700504 A CN 107700504A CN 201710890319 A CN201710890319 A CN 201710890319A CN 107700504 A CN107700504 A CN 107700504A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 173
- 239000010959 steel Substances 0.000 title claims abstract description 173
- 238000012545 processing Methods 0.000 title claims abstract description 130
- 239000011435 rock Substances 0.000 title claims abstract description 75
- 241000826860 Trapezium Species 0.000 claims description 22
- 230000004888 barrier function Effects 0.000 claims description 18
- 239000004744 fabric Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 231100000241 scar Toxicity 0.000 abstract description 5
- 238000012876 topography Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 25
- 239000004567 concrete Substances 0.000 description 8
- 238000009412 basement excavation Methods 0.000 description 7
- 238000005422 blasting Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 235000010676 Ocimum basilicum Nutrition 0.000 description 1
- 240000007926 Ocimum gratissimum Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000000452 mid-foot Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/02—Restraining of open water
- E02D19/04—Restraining of open water by coffer-dams, e.g. made of sheet piles
Abstract
The invention discloses a kind of based on the slope rock river bed steel cofferdam for vacantly hanging pin processing structure, including steel cofferdam body and be laid in that steel cofferdam body vacantly hangs on pin hanging hang pin processing structure, steel cofferdam body is the cube steel jacket box being supported on the rock river bed of slope, vacantly hanging pin processing structure includes two hanging wallboard processing structures, each hanging wallboard processing structure includes the hanging wall plate segment processing structure that one or more is laid on same vertical plane from front to back, and each hanging wall plate segment processing structure is laid on a hanging wall plate segment；Hanging wallboard processing structure is board plug type processing structure or special-shaped block and plate combined type processing structure.The present invention hangs pin and is effectively treated using pin processing structure is vacantly hung to the hanging of steel cofferdam, the hanging hanging wallboard processing structure hung in pin processing structure adapts to the topography variation in riverbed, and blocked under water with reference to bottom plugging structure, can solve the problems, such as that the hanging of slope scar steel cofferdam hangs pin.
Description
Technical field
The present invention relates to a kind of steel cofferdam, more particularly, to a kind of based on the slope rock river bed steel for vacantly hanging pin processing structure
Cofferdam.
Background technology
Steel cofferdam is the water-retaining structure of bearing platform construction, is generally both needed to use steel cofferdam in bridge deepwater foundation construction, generally
The cofferdam used can be divided into two kinds of single wall formula cofferdam and double-walled cofferdam by structure.Pier cushion cap in water is applied using steel cofferdam
In man-hour, need first to transfer steel cofferdam to riverbed.Because riverbed face has out-of-flatness, especially when steel cofferdam is located at slope rock river
When on bed surface, there is hanging phenomenon in steel cofferdam bottom, and the steel cofferdam drift angle if cross section is rectangle has hanging phenomenon, causes steel
Exist on the outside of cofferdam and vacantly hang pin (i.e. in hanging steel cofferdam drift angle), leak stopping on the outside of cofferdam is not implemented, sealed to cofferdam
Base concrete construction brings extreme difficulties, directly affects whether steel cofferdam back cover succeeds.In addition, with reference to cushion cap bottom design mark
It is high, it usually needs first Blasting Excavation supplies the foundation ditch that steel cofferdam is placed on riverbed face, if by deepening steel cofferdam bottom foundation ditch
Blasting Excavation depth solves the hanging problem in steel cofferdam bottom, and steel cofferdam total height also needs accordingly to increase, and excavation of foundation pit work
Work amount increase, can so greatly increase cost, while construction period is longer.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that provide a kind of based on hanging
The slope rock river bed steel cofferdam of pin processing structure is hung, the hanging pin that hangs of steel cofferdam is carried out effectively using pin processing structure is vacantly hung
Processing, the topography variation that the hanging wallboard processing structure in pin processing structure adapts to riverbed is vacantly hung, and combine bottom and block
Structure is blocked under water, can solve the problems, such as that the hanging of slope scar steel cofferdam hangs pin.
In order to solve the above technical problems, the technical solution adopted by the present invention is：It is a kind of based on vacantly hanging pin processing structure
Slope rock river bed steel cofferdam, it is characterised in that：Including steel cofferdam body hanging on pin is hung with the hanging of steel cofferdam body is laid in
Sky hangs pin processing structure, and the steel cofferdam body is the cube steel jacket box being supported on the rock river bed of slope, the cube steel
The cross section of casing is rectangle；The steel cofferdam body in vertically to lay and its from four be in vertically to the cofferdam wall of laying
Plate is spliced；The hanging pin that hangs is the hanging drift angle in bottom in steel cofferdam body, the hanging number for hanging pin processing structure
Measure identical with the quantity for vacantly hanging pin；The hanging pin processing structure of hanging is included at the hanging wallboard of two perpendicular layings
Structure is managed, each hanging wallboard processing structure is laid in outstanding on same vertical plane from front to back including one or more
Empty wallboard section processing structure, each hanging wall plate segment processing structure are laid on a hanging wall plate segment, institute
Hanging wall plate segment is stated as the hanging wallboard section in bottom in the cofferdam wallboard, the hanging wall plate segment is rectangle；
The hanging wall plate segment processing structure is board plug type processing structure or special-shaped block and plate combined type processing structure；
The board plug type processing structure includes multiple the first plates for being laid in the hanging wall plate segment bottom outside from front to back, more
Individual first plate is in laying and it is respectively positioned on same vertical plane, the bottom of each first plate is inserted vertically
It is filled on the rock river bed of slope, each first plate is in parallel laying with the hanging wall plate segment that it is laid；It is described different
Shape block and plate combined type processing structure include being connected to the special-shaped block of the hanging wall plate segment bottom and it is multiple from front to back
The second plate being laid on the outside of special-shaped block, the special-shaped block for be laid in immediately below the hanging wall plate segment and in vertically to
The right-angled trapezium plugging plate of laying, the lateral wall of the right-angled trapezium plugging plate are connected the lateral wall of hanging wall plate segment with it
Flush, it is identical that the width of the right-angled trapezium plugging plate with it connects the width of hanging wall plate segment；Multiple described second
Plate is in laying and it is respectively positioned on same vertical plane, the bottom of each second plate is inserted to slope rock vertically
On riverbed, each second plate is in parallel laying with the right-angled trapezium plugging plate that it is laid；First plate and
Second plate is embedded steel board, and the embedded steel board is elongate steel plate；All steel are inserted in each hanging wallboard processing structure
Plate is laid on same vertical plane；All embedded steel boards in each hanging wallboard processing structure form outside-supporting screen
Barrier, the outside-supporting barrier are in vertically to laying；Bottom plugging structure is provided with the inside of the outside-supporting barrier, it is described
Bottom plugging structure is the plugging structure blocked to the outside-supporting barrier, and the bottom plugging structure is located at steel cofferdam
Between body and slope rock river bed.
It is above-mentioned based on the slope rock river bed steel cofferdam for vacantly hanging pin processing structure, it is characterised in that：The cofferdam wallboard
The wallboard section that middle bottom is supported on the rock river bed of slope is bottom supporting walls plate segment, and the bottom supporting walls plate segment is square
Shape and its bottom carry cutting shoe, are blocked between the rock river bed of the bottom supporting walls plate segment bottom and slope by cutting shoe,
The thickness of the cutting shoe is from top to bottom gradually reduced.
It is above-mentioned based on the slope rock river bed steel cofferdam for vacantly hanging pin processing structure, it is characterised in that：At the board plug type
The width and thickness of slab all same of multiple first plates in structure are managed, multiple first plates are adjacent in uniformly laying
Spacing between two first plates is not more than the width of the first plate；
The width and thickness of slab all same of the special-shaped block and multiple second plates in plate combined type processing structure are more
For individual second plate in uniformly laying, the spacing between two neighboring second plate is not more than the width of the second plate.
It is above-mentioned based on the slope rock river bed steel cofferdam for vacantly hanging pin processing structure, it is characterised in that：First plate
With the width and thickness of slab all same of the second plate, each all embedded steel boards are in uniform cloth in the hanging wallboard processing structure
If.
It is above-mentioned based on the slope rock river bed steel cofferdam for vacantly hanging pin processing structure, it is characterised in that：The hanging wallboard
Low hanging wall plate segment or high hanging wallboard section is in section, the hanging wallboard being laid on the low hanging wall plate segment
Processing structure is the board plug type processing structure, the hanging wallboard processing structure being laid on the high hanging wallboard section
For the special-shaped block and plate combined type processing structure；
The type of each hanging wall plate segment is oblique immediately below it with being located at all in accordance with the hanging wall plate segment bottom
Vertical distance between the rock river bed of slope is judged：With being located at immediately below it at the hanging wall plate segment bottom any position
Slope rock river bed between vertical distance no more than H1max, the hanging wall plate segment is the low hanging wall plate segment；
Otherwise, the hanging wall plate segment is the high hanging wallboard section；Wherein, H1max=180cm~220cm.
It is above-mentioned based on the slope rock river bed steel cofferdam for vacantly hanging pin processing structure, it is characterised in that：The right-angled trapezium
The vertical distance between the rock river bed of slope at any position of plugging plate bottom and immediately below it is no more than H2max；Its
In, H2max=250cm~350cm.
It is above-mentioned based on the slope rock river bed steel cofferdam for vacantly hanging pin processing structure, it is characterised in that：The embedded steel board is
I-steel, the web of the I-steel are in parallel laying with the lateral wall of laid hanging wall plate segment.
It is above-mentioned based on the slope rock river bed steel cofferdam for vacantly hanging pin processing structure, it is characterised in that：The right-angled trapezium
The hanging wall plate segment that plugging plate and outside are laid with the first plate is that plate lays plate, and the plate is laid on plate
Multiple pick-and-place components inserted respectively for the embedded steel board are provided with from front to back, and the pick-and-place components are in vertically to laying；It is each described
Pick-and-place components include laying the lower slot of plate bottom outside and the upper slot directly over the lower slot positioned at the plate,
The structure snd size all same of the upper slot and lower slot and consolidate both at concave shape plugboard trough, the concave shape plugboard trough
The plate is scheduled on to lay on the lateral wall of plate.
It is above-mentioned based on the slope rock river bed steel cofferdam for vacantly hanging pin processing structure, it is characterised in that：The right-angled trapezium
The hanging wall plate segment that plugging plate and outside are laid with the first plate is that plate lays plate, the bottom plugging structure bag
Include sandbag plugging structure and the splash guard mated formation on the inside of the sandbag plugging structure；It is multiple right that the sandbag plugging structure includes
The vertical block wall that gap between the two neighboring embedded steel board is blocked, the vertical block wall are supported in the plate
Lay between plate and slope rock river bed, pass through one between two embedded steel boards of arbitrary neighborhood in the outside-supporting barrier
The vertical block wall is blocked；The splash guard bottom is laid in the slope rock river bed laid positioned at the plate below plate
On, the plate is fixed at the top of the splash guard and is laid on plate；The vertical block wall is by multiple sandbags heap from the bottom to top
The block wall being built into.
It is above-mentioned based on the slope rock river bed steel cofferdam for vacantly hanging pin processing structure, it is characterised in that：The vertical closure
The lateral wall of wall abuts with the outside-supporting barrier；
The steel cofferdam body is single-wall steel cofferdam or Double-Wall Steel Boxed Cofferdam；
The cofferdam wallboard of the single-wall steel cofferdam is lamina；The cofferdam wallboard of the Double-Wall Steel Boxed Cofferdam is by inside panel, cloth
It is located on the outside of inside panel and with inside panel in the exterior panel of parallel laying and the inner support being laid between inside panel and exterior panel
Structure is assembled；
Plate described in the Double-Wall Steel Boxed Cofferdam lays inside panel bottom and the exterior panel bottom flush of plate, described vertical
Block wall is supported in the plate and laid below the exterior panel of plate.
The present invention has advantages below compared with prior art：
1st, simple in construction, reasonable in design and processing and fabricating is easy, and input cost is relatively low.
2nd, easy construction and efficiency of construction are high, and the manpower and materials of input are few.
3rd, using effect is good and practical value is high, can effectively solve because underwater support table is located on the scar of slope and cushion cap is close
The right angle of navigation channel side, which has hanging phenomenon, to be caused to hang the hanging problem of pin existing for steel cofferdam, due to belonging to slope rock on the outside of steel cofferdam
Stone river bed, exist it is hanging hang leak stopping on the outside of the cofferdam of pin and can not implement, bring extreme difficulties to the construction of cofferdam bottom concrete, directly
Connecing influences whether steel cofferdam back cover succeeds, and to reduce excavation of foundation pit depth, the decentralization depth of steel cofferdam is kept constant, the present invention
Successfully solves steel cofferdam with plate combined type processing structure using board plug type processing structure or special-shaped block at " it is hanging to hang pin " place
Hanging problem, blocked under water using bottom plugging structure (i.e. anchor bar of waterproof plate in tunnels and sandbag), it is high greatly to solve naked rock river bed
Poor slope scar deep water foundation double-wall steel " vacantly hanging pin " problem, has saved construction cost, has accelerated construction speed.Also, hang
2~3 times perfusion bottom concretes of cofferdam back cover point at pin, easy construction.Thus, the present invention can reduce excavation of foundation pit as far as possible
Fang Liang, steel cofferdam bottom adaptation to the ground can effectively change, design optimized to steel cofferdam structure, successfully solves rocky bed
Problem of " it is hanging hanging pin " existing for steel cofferdam, has saved construction cost, has accelerated construction speed.
In summary, simple in construction, reasonable in design and easy construction of the invention, using effect are good, using vacantly hanging at pin
Reason structure is hung pin and is effectively treated to the hanging of steel cofferdam, and the hanging wallboard processing structure vacantly hung in pin processing structure can fit
The topography variation in riverbed is answered, and is blocked under water with reference to bottom plugging structure, the hanging of slope scar steel cofferdam can be solved and hang
Pin problem.
Below by drawings and examples, technical scheme is described in further detail.
Brief description of the drawings
Fig. 1 is the structural representation of steel cofferdam body of the present invention.
Fig. 2 is the hanging planar structure schematic diagram for hanging pin processing structure of the present invention.
Fig. 3 is the use state reference chart of bottom plugging structure of the present invention.
Fig. 4 is the hanging facade structures schematic diagram for hanging pin processing structure in present invention right side.
Fig. 5 is the hanging facade structures schematic diagram for hanging pin processing structure of present invention rear side.
Fig. 6 is the structural representation of supporting walls plate segment in bottom of the present invention.
Fig. 7 is the inserting view of I-steel of the present invention and concave shape plugboard trough.
Description of reference numerals:
1-steel cofferdam body；1-1-inside panel；1-2-exterior panel；
1-3-sub-truss；2-the first plate；3-special-shaped block；
4-the second plate；5-slope rock river bed；6-cutting shoe；
7-concave shape plugboard trough；8-vertical block wall；9-splash guard；
10-sandbag；11-concrete sealing bottom layer；12-skewed horizontal load part；
13-midfoot support part；14-I-steel；15-underwater foundation ditch.
Embodiment
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, the present invention includes steel cofferdam body 1 and is laid in steel cofferdam body 1
Hanging hang vacantly hangs pin processing structure on pin, and the steel cofferdam body 1 is the cube steel bushing being supported on slope rock river bed 5
Case, the cross section of the cube steel jacket box is rectangle；The steel cofferdam body 1 in vertically to lay and its by four in perpendicular
Directly it is spliced to the cofferdam wallboard of laying；The hanging pin that hangs is described hanging for the hanging drift angle in bottom in steel cofferdam body 1
The quantity for hanging pin processing structure is identical with the quantity for vacantly hanging pin；It is described it is hanging hang pin processing structure include two it is perpendicular
The hanging wallboard processing structure laid, each hanging wallboard processing structure include one or more and are laid in from front to back
Hanging wall plate segment processing structure on same vertical plane, each hanging wall plate segment processing structure are laid in one and hanged
On empty wallboard section, the hanging wall plate segment is the hanging wallboard section in bottom, the hanging wallboard in the cofferdam wallboard
Section is rectangle；
The hanging wall plate segment processing structure is board plug type processing structure or special-shaped block and plate combined type processing structure；
The board plug type processing structure includes multiple the first plates 2 for being laid in the hanging wall plate segment bottom outside from front to back,
Multiple first plates 2 are in vertically to laying and it is respectively positioned on same vertical plane, the bottom of each first plate 2
Insert to slope rock river bed 5, each first plate 2 is in parallel laying with the hanging wall plate segment that it is laid；
The special-shaped block and plate combined type processing structure include being connected to the special-shaped block 3 of the hanging wall plate segment bottom and it is multiple by
A-P is laid in second plate 4 in the outside of special-shaped block 3, and the special-shaped block 3 is to be laid in immediately below the hanging wall plate segment
And it is in be connected hanging wallboard section with it to the right-angled trapezium plugging plate of laying, the lateral wall of the right-angled trapezium plugging plate vertically
The lateral wall flush of section, it is identical that the width of the right-angled trapezium plugging plate with it connects the width of hanging wall plate segment；It is more
Individual second plate 4 is in laying and it is respectively positioned on same vertical plane, the bottom of each second plate 4 is equal vertically
On inserting to slope rock river bed 5, each second plate 4 is in parallel laying with the right-angled trapezium plugging plate that it is laid；
The plate 4 of first plate 2 and second is embedded steel board, and the embedded steel board is elongate steel plate；At each hanging wallboard
All embedded steel boards are laid on same vertical plane in reason structure；All embedded steel boards in each hanging wallboard processing structure
Outside-supporting barrier is formed, the outside-supporting barrier is in vertically to laying；It is provided with the inside of the outside-supporting barrier
Bottom plugging structure, the bottom plugging structure are the plugging structure that is blocked to the outside-supporting barrier, the bottom
Plugging structure is located between steel cofferdam body 1 and slope rock river bed 5.
Wherein, the slope rock river bed 5 is the rocky bed that riverbed face is slope.The rocky bed refers to riverbed
For basement rock.
In the present embodiment, the structure of the special-shaped block 3 it is identical with the structure of the cofferdam wallboard, in particular to：It is described different
Plate construction is identical used by shape block 3 and the cofferdam wallboard.But the shape of the special-shaped block 3 and the cofferdam wallboard
It is different with size.
In the present embodiment, the hanging quantity for hanging pin of the steel cofferdam body 1 is one, described vacantly to hang pin processing structure
Quantity be one.
As shown in figure 3, the hanging wall plate segment that the right-angled trapezium plugging plate and outside are laid with the first plate 2 is equal
Plate is laid for plate, the bottom plugging structure includes sandbag plugging structure and mated formation anti-on the inside of the sandbag plugging structure
Water plate 9；The sandbag plugging structure includes the vertical envelope that multiple gaps between the two neighboring embedded steel board are blocked
Wall 8, the vertical block wall 8 is supported in the plate and laid between plate and slope rock river bed 5, in the outside-supporting barrier
Blocked between two embedded steel boards of arbitrary neighborhood by a vertical block wall 8；The bottom cloth of splash guard 9
On the slope rock river bed 5 for laying below plate positioned at the plate, the top of splash guard 9 is fixed on the plate and lays plate
On；The vertical block wall 8 is the block wall being piled into from the bottom to top by multiple sandbags 10.
During actual use, pass through the gap between the vertical block wall 8 embedded steel board adjacent thereto to special-shaped block 3
Blocked.Also, sealed by the spacing between the vertical hanging wallboard processing structure described to two of block wall 8
It is stifled.
The madial wall of the splash guard 9 and the sandbag plugging structure abuts.
In the present embodiment, the lateral wall of the vertical block wall 7 abuts with the outside-supporting barrier.
The steel cofferdam body 1 is single-wall steel cofferdam or Double-Wall Steel Boxed Cofferdam.
The cofferdam wallboard of the single-wall steel cofferdam is lamina；The cofferdam wallboard of the Double-Wall Steel Boxed Cofferdam by inside panel 1-1,
It is laid on the outside of inside panel 1-1 and in the exterior panel 1-2 of parallel laying and is laid in inside panel 1-1 and outer wall with inside panel 1-1
Inner supporting structure between plate 1-2 is assembled.
In the present embodiment, as shown in figure 1, the steel cofferdam body 1 is Double-Wall Steel Boxed Cofferdam, the inside panel 1-1 and outer wall
Plate 1-2 is rectangle and both at vertical steel plate, the inner supporting structure for be connected to inside panel 1-1 and exterior panel 1-2 it
Between sub-truss 1-3.
Also, the Double-Wall Steel Boxed Cofferdam is double-walled steel jacket box.
In the present embodiment, the structure of right-angled trapezium plugging plate described in the Double-Wall Steel Boxed Cofferdam and the knot of the cofferdam wallboard
Structure is identical；Plate described in the Double-Wall Steel Boxed Cofferdam lays inside panel 1-1 bottoms and the exterior panel 1-2 bottoms flush of plate, institute
State vertical block wall 7 and be supported in the exterior panel 1-2 lower sections that the plate lays plate.
In the present embodiment, as shown in fig. 6, bottom is supported in the wallboard section on slope rock river bed 5 in the cofferdam wallboard
For bottom supporting walls plate segment, the bottom supporting walls plate segment is rectangle and its bottom carries cutting shoe 6, the bottom supporting walls
Blocked between plate segment bottom and slope rock river bed 5 by cutting shoe 6, the thickness of the cutting shoe 6 is from top to bottom gradually reduced.
The structure of the cutting shoe 6 refers to Fig. 6, and exterior panel 1-2 bottom level is less than in the bottom supporting walls plate segment
Inside panel 1-1 bottom level, lead between exterior panel 1-2 bottoms and inside panel 1-1 bottoms in the bottom supporting walls plate segment
Toe board panel is crossed to connect as one, and in the bottom supporting walls plate segment between exterior panel 1-2 bottoms and inside panel 1-1 bottoms
Blocked by the toe board panel.Toe board panel described in the bottom supporting walls plate segment and exterior panel 1-2 bottoms section
Section forms the cutting shoe 6.
Exterior panel 1-2 bottom and exterior panel 1-2 in the hanging wall plate segment in the bottom supporting walls plate segment
Bottom flush.
Wallboard section in the cofferdam wallboard is divided into the bottom supporting walls plate segment and the hanging wall plate segment two
Type, wherein blocked between the bottom supporting walls plate segment bottom and slope rock river bed 5 by cutting shoe 6, it is described outstanding
Blocked between empty wallboard section and slope rock river bed 5 by the bottom plugging structure.So, by constructed steel cofferdam pair
When underwater support table is constructed, steel cofferdam is transferred in place and vacantly hangs pin processing structure and the bottom plugging structure by described
After the completion of constructing, complete tightly to block between institute's construction steel cofferdam and slope rock river bed 5, directly carried out cofferdam back cover and apply
Work, concrete sealing bottom specifically is carried out in constructed steel cofferdam bottom, and the top of concrete sealing bottom layer 11 is formed after back cover
Portion's absolute altitude is consistent with the elevation of bottom of the underwater support table.
Before actually being transferred to steel cofferdam, the elevation of bottom according to the horizontal cushion cap is also needed, judges whether need pair
Slope rock river bed 5 is excavated downwards, and when needing to be excavated downwards, is excavated using blasting digging method, is excavated
The underwater foundation ditch 15 placed for steel cofferdam is formed afterwards.The bottom supporting walls plate segment bottom is supported in the underwater bottom of foundation ditch 15
Portion.
In the present embodiment, width and the thickness of slab all same of multiple first plates 2 in the board plug type processing structure,
Multiple first plates 2 are in uniformly laying, and the spacing between two neighboring first plate 2 is no more than the first plate 2
Width；
The width and thickness of slab all same of the special-shaped block and multiple second plates 4 in plate combined type processing structure,
Multiple second plates 4 are in uniformly laying, and the spacing between two neighboring second plate 4 is no more than the second plate 4
Width.
For processing and fabricating and installation, easy construction, width and the thickness of slab all same of the plate 4 of the first plate 2 and second,
All embedded steel boards are in uniformly laying in each hanging wallboard processing structure.
In the present embodiment, the hanging wall plate segment is low hanging wall plate segment or high hanging wallboard section, is laid in institute
The hanging wallboard processing structure stated on low hanging wall plate segment is the board plug type processing structure, is laid in described high hanging
The hanging wallboard processing structure on wallboard section is the special-shaped block and plate combined type processing structure；
The type of each hanging wall plate segment is oblique immediately below it with being located at all in accordance with the hanging wall plate segment bottom
Vertical distance between slope rock river bed 5 is judged：At the hanging wall plate segment bottom any position with positioned at its just under
For vertical distance between the slope rock river bed 5 of side no more than H1max, the hanging wall plate segment is the low hanging wallboard section
Section；Otherwise, the hanging wall plate segment is the high hanging wallboard section；Wherein, H1max=180cm~220cm.Namely
Say, the segmental length of (or the lower section of steel cofferdam body 1) is little below the high hanging wallboard section in first plate 2
In H1max.
In the present embodiment, H1max=200cm.
Thus, any values of the H1max between 180cm~220cm., can be right according to specific needs during practice of construction
H1max value adjusts accordingly.
It is vertical between slope rock river bed 5 at the right-angled trapezium plugging plate bottom any position and immediately below it
Distance is no more than H2max；Wherein, H2max=250cm~350cm.That is, positioned at described straight in second plate 4
Segmental length below the trapezoidal plugging plate in angle is not more than H2max.
In the present embodiment, H2max=300cm.Thus, any values of the H2max between 250cm~350cm.Actually apply
In man-hour, H2max value can be adjusted accordingly according to specific needs.
In the present embodiment, as shown in fig. 7, the embedded steel board is I-steel 14, the web of the I-steel 14 is with being laid
The lateral wall of hanging wall plate segment is in parallel laying.
Plate is used as using I-steel 14, support strength can be effectively ensured, and processing and fabricating is easy.The I-steel 14
The edge of a wing of web both sides including web and is symmetrically laid in, the web is fixed between the middle part on two edges of a wing, two
The edge of a wing with the perpendicular laying of web.Meanwhile the web of I-steel 14 is arranged to and lays hanging wall plate segment
Lateral wall is in parallel laying, and the support steadiness of embedded steel board can so be effectively ensured, simultaneously because the web both sides of I-steel 14
The edge of a wing with the perpendicular laying of web, and the edge of a wing of web both sides is laid in symmetrical, so one geometrically symmetric knot of formation
Structure, the stress of web can be transferred directly on two side wing edges so that web is unlikely to deform, is durable in use, and makes whole plate
Support is more firm, and two side wing edges carry out equilibrium to web stress, can meet the firm support for not having to terrain on slope rock river bed 5
Demand.
In the present embodiment, the right lateral side drift angle of institute's construction steel cofferdam is described vacantly to hang in pin processing structure vacantly to hang pin
Two hanging wallboard processing structures be laid in rear side and the right side of constructed steel cofferdam respectively.Two hanging wallboards
Processing structure, which is respectively laid in the hanging wallboard processing structure of rear side on rear side of constructed steel cofferdam and is laid in institute's construction steel, encloses
The hanging wallboard processing structure in right side on the right side of weir, wherein, the structure of the hanging wallboard processing structure of rear side refers to Fig. 5, and right side is hanging
The structure of wallboard processing structure refers to Fig. 4.
As shown in Figure 4 and Figure 5, it is provided with from front to back on the plate laying plate multiple respectively for embedded steel board inserting
Pick-and-place components, the pick-and-place components be in vertically to laying；Each pick-and-place components include laying outside plate bottom positioned at the plate
The structure snd size all same of the lower slot of side and the upper slot directly over the lower slot, the upper slot and lower slot
And both at concave shape plugboard trough 6, the concave shape plugboard trough 6 is fixed on the plate and laid on the lateral wall of plate.
In the present embodiment, the jack in the concave shape plugboard trough 6 is rectangular opening, the length of the rectangular channel for 29cm and
Its width is 20cm.
It is simple processing during actual processing, the plate lays the structure snd size of all concave shape plugboard troughs 6 on plate
All same.
Upper spacing between slot and the lower slot is 110cm~150cm described in each pick-and-place components.This implementation
In example, upper spacing between slot and the lower slot is 130cm described in each pick-and-place components., can root during actual processing
Needed according to specific, upper spacing between slot and the lower slot described in each pick-and-place components is adjusted accordingly.Often
The fixing intensity of the embedded steel board can be effectively ensured in upper spacing between slot and the lower slot described in the individual pick-and-place components
And fastness.
In the present embodiment, each cofferdam wallboard is divided into multiple wallboard units from front to back, each wallboard
Unit is rectangle.The wallboard unit is bottom supporting walls Slab element or hanging wall Slab element, and the bottom supports wallboard list
Member is bottom supporting walls plate segment, the hanging wall Slab element be bottom complete full hanging wall Slab element in vacant state or
Base section is in the part hanging wall Slab element of vacant state, and the full hanging wall Slab element is the hanging wall plate segment,
The wallboard section that bottom is in vacant state in the part hanging wall Slab element is the hanging wall plate segment.
In the present embodiment, there is hanging phenomenon in the right lateral side drift angle of institute's construction steel cofferdam, cause close to navigation channel and the drift angle
Exist on the outside of steel cofferdam and vacantly hang pin, on the outside of cofferdam leak stopping can not implement, constructed to cofferdam bottom concrete and bring extreme difficulties,
Directly affect whether steel cofferdam back cover succeeds.If deepening the underwater Blasting Excavation depth of foundation ditch 15, steel cofferdam total height also needs accordingly
Increase, can so greatly increase cost, while construction period is longer.And vacantly hang pin processing structure pair using of the present invention
This is vacantly hung after pin handled, can be in " vacantly hanging pin " portion while need not deepen underwater 15 Blasting Excavation depth of foundation ditch
Position carries out alignment processing according to flying height is different, realizes the hanging tight closure hung between pin and slope rock river bed 5.
In the present embodiment, the hanging suspended length for hanging pin two side wall panels is 14m or so, flying height 0.5m
~6.8m, it is vacantly maximum in corner point, it is specifically board plug type processing structure or special-shaped block using the hanging wallboard processing structure
The topography variation of slope rock river bed 5 can be fully adapted to plate combined type processing structure, is carried out using sandbag 9 and anchor bar of waterproof plate in tunnels
Underwater closure.During actual progress cofferdam back cover, vacantly hang at pin and irrigate bottom concrete in three times after by elder generation.
Before practice of construction, measurement equipment pair is first swept using conventional riverbed, according to carrying out sweeping survey to slope rock river bed 5, and
Survey situation is swept according to riverbed, the flying height at the hanging wall plate segment any position is determined, the hanging wallboard
The vertical distance between slope rock river bed 5 of the flying height for the opening position and immediately below it at any position of section；
When being processed to steel cofferdam body 1, the basil of the hanging wall plate segment bottom is changed to the straight angle, according to actual measurement flying height
Determine whether to set the right-angled trapezium plugging plate, and the size of the right-angled trapezium plugging plate is carried out really according to actual landform
It is fixed.
The hanging embedded steel board hung in pin processing structure mainly can well adapt to topography variation, and single I-steel is inserted
Plate can contact with slope rock river bed 5, play supporting and retaining system leakproof effect.In the present embodiment, embedded steel board uses I25b I-steel, length
3m~6m, I-steel web are placed in parallel with steel cofferdam lateral wall.Jack size in the plugboard trough is 29 × 20cm, described
Plugboard trough is welded after using thickness as 20mm steel plate bendings with Double-Wall Steel Boxed Cofferdam lateral wall, and every I-steel 14 is in vertical side
2 jacks up and down are set up, jack spacing is 1.3m.Spacing between the two neighboring embedded steel board is 40cm, adjacent two
Clear distance between the individual embedded steel board is 15cm.During practice of construction, can according to specific needs, to the two neighboring embedded steel board it
Between clear distance adjust accordingly.
In the present embodiment, as shown in figure 1, the cross section of the steel cofferdam body 1 is rectangle.The steel cofferdam body 1
Four drift angles in be provided with skewed horizontal load part 12, in being provided between the front side wall and rear wall of the steel cofferdam body 1
Portion's support member 13.The skewed horizontal load part 12 and midfoot support part 13 are in horizontal layout.
It is described above, only it is presently preferred embodiments of the present invention, not the present invention is imposed any restrictions, it is every according to the present invention
Any simple modification, change and the equivalent structure change that technical spirit is made to above example, still fall within skill of the present invention
In the protection domain of art scheme.
Claims (10)
- It is 1. a kind of based on the slope rock river bed steel cofferdam for vacantly hanging pin processing structure, it is characterised in that：Including steel cofferdam body (1) Pin processing structure is vacantly hung on pin with hanging hang for being laid in steel cofferdam body (1), the steel cofferdam body (1) is to be supported in Cube steel jacket box on slope rock river bed (5), the cross section of the cube steel jacket box is rectangle；The steel cofferdam body (1) in vertically to lay and its from four in being vertically spliced to the cofferdam wallboard of laying；It is described hanging to hang pin and enclosed for steel The hanging drift angle in bottom in weir body (1), the hanging quantity for hanging pin processing structure are identical with the quantity for vacantly hanging pin； The hanging pin processing structure of hanging includes the hanging wallboard processing structure of two perpendicular layings, each hanging wallboard processing Structure includes the hanging wall plate segment processing structure that one or more is laid on same vertical plane from front to back, each described Hanging wall plate segment processing structure is laid on a hanging wall plate segment, and the hanging wall plate segment is the cofferdam wallboard The hanging wallboard section in middle bottom, the hanging wall plate segment are rectangle；The hanging wall plate segment processing structure is board plug type processing structure or special-shaped block and plate combined type processing structure；It is described Board plug type processing structure includes multiple the first plates (2) for being laid in the hanging wall plate segment bottom outside from front to back, more Individual first plate (2) is in vertically to laying and it is respectively positioned on same vertical plane, the bottom of each first plate (2) Portion is inserted to slope rock river bed (5), and each first plate (2) is with the hanging wall plate segment that it is laid in parallel Lay；The special-shaped block includes being connected to the special-shaped block (3) of the hanging wall plate segment bottom with plate combined type processing structure It is described hanging to be laid in multiple the second plates (4) being laid in from front to back on the outside of special-shaped block (3), the special-shaped block (3) Immediately below wallboard section and in vertically to the right-angled trapezium plugging plate of laying, the lateral wall of the right-angled trapezium plugging plate and its institute The lateral wall flush of hanging wall plate segment is connected, the width of the right-angled trapezium plugging plate is connected hanging wall plate segment with it Width it is identical；Multiple second plates (4) are in vertically to laying and it is respectively positioned on same vertical plane, and each described the The bottom of two plates (4) is inserted to slope rock river bed (5), the right angle that each second plate (4) is laid with it Trapezoidal plugging plate is in parallel laying；First plate (2) and the second plate (4) are embedded steel board, and the embedded steel board is strip Shape steel plate；All embedded steel boards are laid on same vertical plane in each hanging wallboard processing structure；It is each described hanging All embedded steel boards in wallboard processing structure form outside-supporting barrier, and the outside-supporting barrier is in vertically to laying；Institute State and bottom plugging structure is provided with the inside of outside-supporting barrier, the bottom plugging structure is that the outside-supporting barrier is entered The plugging structure of row closure, the bottom plugging structure are located between steel cofferdam body (1) and slope rock river bed (5).
- 2. according to described in claim 1 based on the slope rock river bed steel cofferdam for vacantly hanging pin processing structure, it is characterised in that：Institute It is bottom supporting walls plate segment to state the wallboard section that bottom in the wallboard of cofferdam is supported on slope rock river bed (5), the bottom branch Support wallboard section is rectangle and its bottom carry cutting shoe (6), the bottom supporting walls plate segment bottom and slope rock river bed (5) it Between blocked by cutting shoe (6), the thickness of the cutting shoe (6) is from top to bottom gradually reduced.
- 3. according to being existed based on the slope rock river bed steel cofferdam for vacantly hanging pin processing structure, its feature described in claim 1 or 2 In：The width of multiple first plates (2) in the board plug type processing structure and thickness of slab all same, multiple described first insert For plate (2) in uniformly laying, the spacing between two neighboring first plate (2) is not more than the width of the first plate (2)；The special-shaped block and the width and thickness of slab all same of multiple second plates (4) in plate combined type processing structure are more For individual second plate (4) in uniformly laying, the spacing between two neighboring second plate (4) is not more than the second plate (4) width.
- 4. according to described in claim 3 based on the slope rock river bed steel cofferdam for vacantly hanging pin processing structure, it is characterised in that：Institute The width and thickness of slab all same of the first plate (2) and the second plate (4) are stated, each all steel in the hanging wallboard processing structure Plate is in uniformly laying.
- 5. according to being existed based on the slope rock river bed steel cofferdam for vacantly hanging pin processing structure, its feature described in claim 1 or 2 In：The hanging wall plate segment is low hanging wall plate segment or high hanging wallboard section, is laid in the low hanging wall plate segment On the hanging wallboard processing structure be the board plug type processing structure, be laid in described high vacantly described on wallboard section Hanging wallboard processing structure is the special-shaped block and plate combined type processing structure；The type of each hanging wall plate segment is all in accordance with the hanging wall plate segment bottom and the slope rock immediately below it Vertical distance between riverbed (5) is judged：With being located at immediately below it at the hanging wall plate segment bottom any position Slope rock river bed (5) between vertical distance no more than H1max, the hanging wall plate segment is the low hanging wallboard section Section；Otherwise, the hanging wall plate segment is the high hanging wallboard section；Wherein, H1max=180cm~220cm.
- 6. according to described in claim 5 based on the slope rock river bed steel cofferdam for vacantly hanging pin processing structure, it is characterised in that：Institute State vertical distance at any position of right-angled trapezium plugging plate bottom between the slope rock river bed (5) immediately below it not More than H2max；Wherein, H2max=250cm~350cm.
- 7. according to being existed based on the slope rock river bed steel cofferdam for vacantly hanging pin processing structure, its feature described in claim 1 or 2 In：The embedded steel board is I-steel (14), and the lateral wall of the web and laid hanging wall plate segment of the I-steel (14) is in Parallel laying.
- 8. according to being existed based on the slope rock river bed steel cofferdam for vacantly hanging pin processing structure, its feature described in claim 1 or 2 In：The hanging wall plate segment that the right-angled trapezium plugging plate and outside are laid with the first plate (2) is that plate lays plate, The plate is laid is provided with multiple pick-and-place components inserted respectively for the embedded steel board from front to back on plate, the pick-and-place components are in perpendicular Directly to laying；Each pick-and-place components include laying the lower slot of plate bottom outside and positioned at the underthrust positioned at the plate The structure snd size all same of upper slot directly over groove, the upper slot and lower slot and both at concave shape plugboard trough (7), the concave shape plugboard trough (7) is fixed on the plate and laid on the lateral wall of plate.
- 9. according to being existed based on the slope rock river bed steel cofferdam for vacantly hanging pin processing structure, its feature described in claim 1 or 2 In：The hanging wall plate segment that the right-angled trapezium plugging plate and outside are laid with the first plate (2) is that plate lays plate, The bottom plugging structure includes sandbag plugging structure and the splash guard (9) mated formation on the inside of the sandbag plugging structure；It is described Sandbag plugging structure includes the vertical block wall (8) that multiple gaps between the two neighboring embedded steel board are blocked, institute Vertical block wall (8) is stated to be supported between the plate laying plate and slope rock river bed (5), it is any in the outside-supporting barrier Blocked between the two neighboring embedded steel board by a vertical block wall (8)；Splash guard (9) bottom cloth On the slope rock river bed (5) for laying below plate positioned at the plate, the plate cloth is fixed at the top of the splash guard (9) If on plate；The vertical block wall (8) is the block wall being piled into from the bottom to top by multiple sandbags (10).
- 10. according to described in claim 9 based on the slope rock river bed steel cofferdam for vacantly hanging pin processing structure, it is characterised in that： The lateral wall of the vertical block wall (8) abuts with the outside-supporting barrier；The steel cofferdam body (1) is single-wall steel cofferdam or Double-Wall Steel Boxed Cofferdam；The cofferdam wallboard of the single-wall steel cofferdam is lamina；The cofferdam wallboard of the Double-Wall Steel Boxed Cofferdam is by inside panel (1-1), cloth It is located on the outside of inside panel (1-1) and in the exterior panel (1-2) of parallel laying and is laid in inside panel (1-1) with inside panel (1-1) Inner supporting structure between exterior panel (1-2) is assembled；Plate described in the Double-Wall Steel Boxed Cofferdam lays inside panel (1-1) bottom and exterior panel (1-2) bottom flush of plate, institute State vertical block wall (8) and be supported in exterior panel (1-2) lower section that the plate lays plate.
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