CN209412843U - A kind of self balance combined water-retaining cofferdam - Google Patents
A kind of self balance combined water-retaining cofferdam Download PDFInfo
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- CN209412843U CN209412843U CN201822098745.2U CN201822098745U CN209412843U CN 209412843 U CN209412843 U CN 209412843U CN 201822098745 U CN201822098745 U CN 201822098745U CN 209412843 U CN209412843 U CN 209412843U
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Abstract
The utility model discloses a kind of self balance combined water-retaining cofferdams, including enclosing structure, support construction as made of modular unit segmented assembly, counter-force balanced structure；Each modular unit includes pedestal, column, water retaining facing；Each pedestal includes the pedestal T shape socket joint slot and pedestal T shape socket joint head for being respectively arranged at both ends, it is provided on pedestal and is respectively used to vertical columns, the installation bayonet of water retaining facing, water retaining facing limiting slot, the bottom surface of pedestal is fixedly installed pedestal plate soft rubber plate, and the pedestal side that meets water is provided with pedestal rubber Water shielding curtain；Pedestal includes bottom edge pedestal, side pedestal, corner pedestals；The cross sectional shape of bottom edge pedestal is right-angled trapezium；The cross sectional shape of side pedestal is rectangle；Corner pedestals are formed by connecting by two sections identical with the section of side pedestal and bottom edge pedestal respectively.The utility model has very strong operability and applicability, while all transfer efficients of device can be improved.
Description
Technical field
The utility model relates to a kind of self balance combined water-retaining cofferdams, can implement fast enclosure to slope surface, to be
Channel (river) side slope lining cutting panel provides dry working space.
Background technique
General large water transportation water delivery engineering route is long, along the line complex geologic conditions, and changes in environmental conditions is big, and channel easily occurs
Lining cutting panel crack, the defects of surface layer freeze-thaw damage, removing, collapsing.Currently, channel defect processing is typically all to drop both at home and abroad
Low water level operation is implemented in the case of cutting off the water, however large water transportation water delivery engineering does not have drop low water level operation generally or cuts off the water
Maintenance condition, the following canal lining panel of water surface curve is collapsed, swell and water surface curve above and below freeze-thaw damage the defects of can only use
The interim measures such as ballast bring security risk for engineering.Current existing cofferdam facility or the generally existing underwater construction of technology are difficult
The problems such as degree is big, waterstop sealing effect is poor, while general cofferdam underwater penetration limited (less than 1 meter), being only capable of every time to one piece etc.
A small number of block panels are locally repaired, and large water transportation water delivery engineering normal maintenance and maintenance demand are much unable to satisfy.Therefore, it grinds
Hair is safe and reliable, water-stagnating effect is good, disassembled combination, project cost are low, strong applicability novel combination type water blocking equipment has
Important meaning and application value.
Utility model content
The technical problem to be solved by the utility model is to overcome the shortage of prior art, provide one kind can it is quickly in place and
The combined type water-retaining cofferdam of removal can implement fast enclosure to channel (river) slope surface, provide dry working space.
The utility model specifically uses following technical scheme to solve above-mentioned technical problem:
A kind of self balance combined water-retaining cofferdam, including the floor projection as made of modular unit segmented assembly are opening
The enclosing structure of splayed or open rectangle, one group of support for being supported respectively to each modular unit of enclosing structure
Structure, and the counter-force balanced structure for enclosing structure integrally to be stablized and reinforced；Each mould of the enclosing structure
Block unit includes pedestal, column, water retaining facing；The weight of each pedestal is not less than 1 ton comprising is respectively arranged at both ends
Pedestal T shape socket joint slot and pedestal T shape socket joint head, be provided with the installation card for being respectively used to vertical columns, water retaining facing on pedestal
Mouthful, pedestal water retaining facing limiting slot, the bottom surface of pedestal is fixedly installed pedestal plate soft rubber plate, and the pedestal side that meets water is provided with
Pedestal rubber Water shielding curtain；The pedestal includes the bottom edge pedestal and side pedestal for being respectively used to the bottom edge and side of enclosing structure,
And the corner pedestals for connecting bottom edge pedestal and side pedestal；The cross sectional shape of bottom edge pedestal is right-angled trapezium, the right angle
Sharp angle in trapezoidal four angles is equal to the angle between construction water channel lining cutting slope surface and horizontal plane；The cross sectional shape of side pedestal
For rectangle；Corner pedestals are formed by connecting by two sections identical with the section of side pedestal and bottom edge pedestal respectively.
Preferably, the radially opposite sides of column are separately provided for the column water retaining facing limiting slot of insertion water retaining facing,
At least one end of column, which is provided with, connect installation landing nipple with the female type that the installation bayonet of pedestal matches, and is arranged on column
There is the connection structure for connected support structure.
Preferably, the support construction includes braced bar system, plate bearing；Braced bar system is adjustable triangular structure,
Including upper links, lower link, it is set to four connection sleeves at upper links both ends and lower link both ends；Upper links
It is the solid pole that both ends are respectively arranged with rectangle lead screw transmission tooth with lower link, the section for connecting sleeve is annulus,
Inner ring is provided with rectangular inner meshing gear compatible with the rectangle lead screw transmission tooth.
Preferably, the pedestal rubber Water shielding curtain be combined by the thicker rubber slab in the upper layer rubber slab relatively thin with lower layer and
At the free flexible combination rubber slab of bilayer.It is further preferred that the upper layer of the double-deck free flexible combination rubber slab for thickness not
Rubber slab greater than 6mm, lower layer are the rubber slab that thickness is not more than 3mm.
Preferably, the main body of the water retaining facing is the plane steel facing for being provided with stiffener plate, the bottom of plane steel facing
Water sealing structure is provided on side and two sides.
It is further preferred that the water sealing structure is made of the side waterstop of back side waterstop and two sides, the sealing
Band is flexible flat rubber slab or expansion sealing strip.
Preferably, the counter-force balanced structure includes being fixedly installed on one group to construct in water channel lining cutting slope surface and can accommodating to match
The reaction box of weight, each reaction box can be connect by connecting rod with pedestal respectively.
Further, the bottom surface of reaction box is provided with the friction for increasing coefficient of friction between reaction box and side slope surface
Structure.
Further, installation positioning pipe is provided on column.
The construction method of combined type water-retaining cofferdam described in any technical solution as above, cofferdam installation process are specific as follows:
S1, bottom edge pedestal is successively lifted on side slope surface and connecting according to swimming over to the order of upstream under, is then pressed
Two corner pedestals and first and the last one bottom edge pedestal are separately connected according to the order in downstream behind first upstream, finally according to
Upstream and downstream installs side pedestal with interlocking one section one section of along order；
S2, column is sequentially inserted into the installation bayonet of the column on mounted pedestal according to the sequence for being from upstream to downstream
In, then support construction is installed；
S3, by the pedestal being connected and column Xiang Shuizhong synchronous push into water at predetermined depth；
S4, water retaining facing is sequentially inserted into each column limiting slot according to the sequence for being from upstream to downstream；
S5, setting counter-force balanced structure；
S6, the water on the inside of enclosing structure is discharged outward, until cofferdam good seal, without obvious percolating water；
Cofferdam disassembly process is specific as follows:
After the completion of S7, operation, according to first downstream side water retaining facing, then bottom edge water retaining facing, last upstream side obstructing surface
The sequence of plate successively hangs out water retaining facing；
S8, according to first downstream heel post, then bottom edge column, the sequence of last upstream heel post successively hangs out column；
S9, synchronization remove pedestal after pulling up pedestal to side slope top of the slope.
Compared with prior art, technical solutions of the utility model have the advantages that
The utility model combined type water-retaining cofferdam bilayer free flexible combination rubber different in chassis side setting thickness
Plate blocks water curtain, and the feature that the rubber slab using thickness no more than 3mm posts, lap gap is small forms water blocking layer, utilizes thickness
Limit fixing layer of the feature that rubber slab self-strength no more than 6mm is big, anti-flow performance is strong as underlying rubber water blocking layer, bottom
Flexible water stop is arranged in seat bottom, acts on lower automatic paste tightening canal slope by self weight, water pressure and water flow pressure, can well adapt to
Slope surface is uneven, reaches the purpose that blocks water；T-type bindiny mechanism, T-type socket joint head and T-type are used between the utility model pedestal and pedestal
By cooperating precision between component and be mutually twisted relationship, labyrinth sealing between socket joint slot；The water retaining facing and pedestal of the utility model,
Cooperated between column using trench structure and plane, soft flat rubber is installed between plane, realizes cofferdam column and obstructing surface
Sealing between plate and between pedestal and water retaining facing.The above-mentioned Water stop mechanism combined plays good sealing effect.This
Utility model cofferdam installation process does not need heavy construction equipment, can satisfy different length of slope, different underwater penetration and not
Construct demand with slope coefficient, and it is safe and reliable, water-stagnating effect is good, disassembled combination, project cost are low, overcome previous cofferdam
Sealing and the technical problems such as equipment anti-floating after dry ground operation, upper cunning, underwater penetration be small are formed, there is very strong operability and applicable
Property, while in place, the disassembly and assembly time in cofferdam can be shortened, it simplifies operating procedure, saved the operating time, shorten the construction period, improve
All transfer efficients of device.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one preferred embodiment of the utility model combined type water-retaining cofferdam；
Fig. 2 is schematic diagram of base structure；
Fig. 3 is pillar construction schematic diagram；
Fig. 4 is water retaining facing structural schematic diagram；
Fig. 5 is the structural schematic diagram of support construction；
Fig. 6 is the structural schematic diagram of counter-force balanced structure；
The meaning of each appended drawing reference is specific as follows in figure:
1, enclosing structure, 2, support construction, 3, counter-force balanced structure；11, pedestal, 12, column, 13, water retaining facing；21,
Braced bar system, 22, plate bearing；31, reaction box, 32, connecting rod, 33, mass, 34, plate soft rubber plate；111, pedestal
T shape socket joint slot, 112, pedestal T shape socket joint head, 113, column installation card, 114, pedestal water retaining facing limiting slot, 115, pedestal it is flat
Plate soft rubber plate, 116, pedestal rubber Water shielding curtain, 117, hanging ring；121, column water retaining facing limiting slot, 122, female type company
Connect installation landing nipple, 123, support hole location, 124, installation positioning pipe；131, plane steel facing, 132, stiffener plate, 133, side
Face waterstop, 134, back side waterstop；221, plate bearing, 211, upper links, 212, lower link, 213, connection sleeve.
Specific embodiment
In view of the shortcomings of the prior art, the thinking of the utility model is self-possessed by pedestal same by the way of piecewise combination
Shi Shixian anti-floating, antiskid and good water-stagnating effect, and support construction and counter-force balanced structure is combined to realize the firm of cofferdam；
It is blocked water curtain by the double-deck free flexible combination rubber slab of chassis side setting, flexible water stop is arranged in base bottom, by being self-possessed, water
Pressure and water flow pressure act on lower automatic paste tightening canal slope, reach the purpose that blocks water, pass through the T-type bindiny mechanism between pedestal and pedestal
It realizes good sealing, is cooperated by trench structure used between water retaining facing and pedestal, column and plane, pacified between plane
It fills soft flat rubber, realizes between cofferdam column and water retaining facing and the sealing between pedestal and water retaining facing.
Specifically, the self balance combined water-retaining cofferdam that the utility model is proposed, including be segmented by modular unit
Assembled floor projection is the enclosing structure of open splayed or open rectangle, is distinguished for segmentation each to enclosing structure
One group of support construction being supported, and the counter-force balanced structure for enclosing structure integrally to be stablized and reinforced；Institute
The each segmentation for stating enclosing structure includes pedestal, column, water retaining facing；The weight of each pedestal is not less than 1 ton comprising point
It is not set to the pedestal T shape socket joint slot and pedestal T shape socket joint head at both ends, is provided on pedestal and is respectively used to vertical columns, water blocking
Installation bayonet, the pedestal water retaining facing limiting slot of panel, the bottom surface of pedestal are fixedly installed pedestal plate soft rubber plate, pedestal
The side that meets water is provided with pedestal rubber Water shielding curtain；The pedestal includes the bottom edge pedestal for being respectively used to the bottom edge and side of enclosing structure
With side pedestal, and the corner pedestals for connecting bottom edge pedestal and side pedestal；The cross sectional shape of bottom edge pedestal is right angle
Trapezoidal, the sharp angle in four angles of the right-angled trapezium is equal to the angle between construction water channel lining cutting slope surface and horizontal plane；Side edge bottom
The cross sectional shape of seat is rectangle；Corner pedestals connect by two sections identical with the section of side pedestal and bottom edge pedestal respectively and
At.
The construction method of the combined type water-retaining cofferdam, cofferdam installation process are specific as follows:
S1, bottom edge pedestal is successively lifted on side slope surface and connecting according to swimming over to the order of upstream under, is then pressed
Two corner pedestals and first and the last one bottom edge pedestal are separately connected according to the order in downstream behind first upstream, finally according to
Upstream and downstream installs side pedestal with interlocking one section one section of along order；
S2, column is sequentially inserted into the installation bayonet of the column on mounted pedestal according to the sequence for being from upstream to downstream
In, then support construction is installed；
S3, by the pedestal being connected and column Xiang Shuizhong synchronous push into water at predetermined depth；
S4, water retaining facing is sequentially inserted into each column limiting slot according to the sequence for being from upstream to downstream；
S5, setting counter-force balanced structure；
S6, the water on the inside of enclosing structure is discharged outward, until cofferdam good seal, without obvious percolating water；
Cofferdam disassembly process is specific as follows:
After the completion of S7, operation, according to first downstream side water retaining facing, then bottom edge water retaining facing, last upstream side obstructing surface
The sequence of plate successively hangs out water retaining facing；
S8, according to first downstream heel post, then bottom edge column, the sequence of last upstream heel post successively hangs out column；
S9, synchronization remove pedestal after pulling up pedestal to side slope top of the slope.
For convenient for public understanding, below with a preferred embodiment and in conjunction with attached drawing come to technical solutions of the utility model into
Row is further described:
As shown in Figure 1, it is open that the combined type water-retaining cofferdam in the present embodiment, which includes floor projection made of segmented assembly,
The enclosing structure 1 of splayed or open rectangle, one group of branch for being supported respectively to each modular unit of enclosing structure 1
Support structure 2, and for the whole counter-force balanced structure 3 stablized and reinforced of enclosing structure 1.The base width in cofferdam and
Underwater penetration can be adjusted flexibly by different modular unit quantity.
Each modular unit of enclosing structure 1 includes pedestal 11, column 12, water retaining facing 13.As shown in Figure 1, bottom
11 points of seat are three kinds, respectively the bottom edge pedestal and side pedestal for the bottom edge of enclosing structure 1 and side, and for connecting
The corner pedestals of bottom edge pedestal and side pedestal；The cross sectional shape of bottom edge pedestal is right-angled trapezium, in four angles of the right-angled trapezium
Sharp angle be equal to construction channel or river lining cutting slope surface and horizontal plane between angle；The cross sectional shape of side pedestal is square
Shape；Corner pedestals are formed by connecting by two sections identical with the section of side pedestal and bottom edge pedestal respectively.
As shown in Fig. 2, not less than 1 ton of the weight of each pedestal 11 (single-base weight is 1800kg in the present embodiment),
It includes the pedestal T shape socket joint slot 111 and pedestal T shape socket joint head 112 for being respectively arranged at both ends, is provided on pedestal 11 and uses respectively
It is set in the bottom surface fixation of vertical columns 12, the installation bayonet 113 of water retaining facing 13, pedestal water retaining facing limiting slot 114, pedestal 11
Be equipped with pedestal plate soft rubber plate 115, the side that meets water of pedestal 11 be provided with pedestal rubber Water shielding curtain 116 (in order to easy for construction,
It can also all be arranged in the two sides of pedestal 11).In order to obtain better water-stagnating effect, bilayer is preferred through many experiments discovery
Free flexible combination rubber slab, i.e., the described pedestal rubber Water shielding curtain 116 by upper layer thicker (thickness is desirably no more than 6mm) rubber
Plate and the rubber slab of lower layer relatively thin (thickness is desirably no more than 3mm) are freely combined, so as to be not more than 3mm's using thickness
Rubber slab posts, lap gap is small feature forms water blocking layer, the rubber slab self-strength using thickness no more than 6mm is big,
Limit fixing layer of the strong feature of anti-flow performance as underlying rubber water blocking layer, and then obtain good water-stagnating effect.It is specific to add
Working hour need to only meet water the pedestal that is fixed on one side of thick rubber slab and Thin rubber plate side bottom position.In the present embodiment
Pedestal rubber Water shielding curtain 116 uses the free flexible combination rubber slab of bilayer of lower layer 3mm+ upper layer 6mm.In addition, for the ease of hanging
It fills, is additionally provided with one group of hanging ring 117 on pedestal 11.
As shown in figure 3, the radially opposite sides of column 12 are separately provided for the column water retaining facing of insertion water retaining facing 13
Limiting slot 121, at least one end of column 12, which is provided with, connect installation with the female type that the installation bayonet 113 of pedestal 11 matches calmly
Position connector 122, the support hole location 123 for connected support structure 2 is provided on column 12.Determine when for the ease of cofferdam installation
, installation positioning pipe 124 is additionally provided on the column 12 in the present embodiment.The section of column 12 can using round, rectangular or
Rectangle etc., rectangular or rectangle steel are easy to form limit in base holes, guarantee relatively accurate installation site, but need to pass through
Circular steel mills out four planes, needs very big processing capacity.And circular steel is directlyed adopt as column and is only needed in pedestal
Installation site locally mills out limit plane, and processes limiting slot in side, it is possible to reduce processing capacity, therefore column 12 preferably uses
Circular cross-section.
As shown in figure 4, the main body of water retaining facing 13 is the plane steel facing 131 for being provided with stiffener plate 132, flat steel face
It is provided with water sealing structure in the bottom edge of plate 131, two sides and dorsal edge, water sealing structure is by the back side described in the present embodiment
Waterstop 134 and two sides side and bottom surface waterstop 133 form, and the waterstop preferably uses flexible flat rubber slab or swollen
Swollen sealing rod.
As shown in figure 5, the support construction 2 includes braced bar system 21, plate bearing 22；Braced bar system 21 is adjustable three
Corner structure comprising upper links 211, lower link 212, and it is set to 211 both ends of upper links and 212 liang of lower link
Four connection sleeves 213 at end；Upper links 211 and lower link 212 are that both ends are respectively arranged with rectangle lead screw transmission tooth
Solid cylinder, the section of connection sleeve 213 is annulus, and inner ring is provided with square compatible with the rectangle lead screw transmission tooth
Shape internal tooth.
The support construction 2 can guarantee the stability of column and water fender, but when pedestal and side slope contact condition are poor,
May be too small because of frictional force, the whole passage upwards in cofferdam, or since local slope sedimentation is difficult to support, asked to solve this
Topic, the utility model are devised for the whole counter-force balanced structure 3 stablized and reinforced of enclosing structure 1.Such as Fig. 6 institute
Show, counter-force balanced structure 3 includes the counter-force that one group be fixedly installed on side slope surface can accommodate mass 33 in the present embodiment
Case 31, each reaction box 31 can be connect by connecting rod 32 with pedestal 11 respectively.It is ingenious in the present embodiment to use reaction box along side
The partical gravity of slope slope surface obliquely resists the bottom edge pedestal suffered thrust upward along side slope under water, in order to further such that
Total is stablized, and can be arranged in the bottom surface of reaction box 31 for increasing coefficient of friction between reaction box 31 and side slope surface
Friction structure, such as the bottom surface of reaction box 31 can be made decorative pattern, using being fixed on 31 bottom surface of reaction box in the present embodiment
Plate soft rubber plate 34 rubs to increase.
The concrete construction method in above-mentioned cofferdam includes:
Step 1 pops up a bottom edge pedestal installation base directrix at adjoined water surface line position using horizontal tube and tape measure surely,
Every section bottom edge base mounting orientation line is divided simultaneously；
First segment bottom edge pedestal lifting in downstream is transported near installation site by step 2 with crane, using horizontal ruler and often
Flower basket bolt on root lifting rope accurately adjusts pedestal posture, then hangs on canal slope panel in place bottom edge pedestal, uses angle
Measuring tool carries out longitudinal and transverse direction angle of bank measurement to manned bottom edge pedestal and records deviation scale, then by crane
Hang preload lifting rope, each lifting rope length readjusted using flower basket bolt according to each lifting rope tightness, and keep it is elastic it is consistent after
The suspension hook being hooked on pedestal hanging ring is removed, the second section of socket joint bottom edge pedestal is then lifted；
Step 3 repeats step 2, installs bottom edge pedestal one by one；
Step 4 lifts upstream corner pedestals, and connect with upstream first segment bottom edge pedestal socket joint；
Step 5 lifts downstream corner pedestals, and connect with downstream final section bottom edge pedestal socket joint；
Upstream first segment right edge pedestal is lifted, and connect with upstream corner pedestals socket joint by step 6；
Downstream first segment left side pedestal is lifted, and connect with downstream corner pedestals socket joint by step 7；
Step 8 repeats step 6~7, installs side pedestal one by one；
Column is sequentially inserted into mounted pedestal upright post installation bayonet according to the sequence in downstream behind first upstream by step 9
In；
Step 10, installation supporting bar structure；
The mudcake high pressure water that canal slope panel adheres in range is surrounded in cofferdam below water surface curve by step 11, diving operation
Rifle or spatula are removed；
Step 12, with the jack and mandril synchronous push upstream first segment that are fixed on canal top and downstream final section bottom
Seat, by the pedestal being connected and column Xiang Shuizhong pushing tow, pushing tow measures pushing tow stroke in the process, and control two sides pushing tow is synchronous；
Step 13 repeats step 12, will be in place at whole pedestals and column pushing tow to predetermined depth；
Step 14, assembled floating drum, the water surface in cofferdam are all paved with and installs railing form operating platform waterborne；
Step 15 is opposed to the column in water according to design size on operating platform on the water and measures correction, and adopts
It is positioned in horizontal brace rod insertion column side positioning pipe；
Step 16, by water retaining facing since being sequentially inserted into from top to bottom the panel of upstream side in each column limiting slot；
Reaction box connect with upstream and downstream side pedestal, and loads mass by step 17；
The water on the inside of enclosing structure is discharged outward for step 18, unlatching water pump, until cofferdam good seal, seeps without obvious
Leak；
After the completion of step 19, operation, water pump is hung out, assembles Overwater floating platform；
Step 20, according to first downstream side water retaining facing, then bottom edge water retaining facing, the sequence of last upstream side water retaining facing
Successively water retaining facing is hung out；
Step 21, according to first downstream heel post, then bottom edge column, the sequence of last upstream heel post is successively by column and branch
Support structure is hung out together；
Step 22 removes operating platform waterborne；
Two step 23, starting hoist engine synchronizations pull up pedestal, and pedestal is removed；
Each component of combined type water-retaining cofferdam is transported to next construction location by step 24.
The combined type water-retaining cofferdam installation process of the utility model does not need heavy construction equipment, can satisfy different side slopes
Length, different underwater penetration and different slope coefficients are constructed demand, and it is safe and reliable, water-stagnating effect is good, disassembled combination, engineering
Low cost overcomes previous cofferdam sealing and forms the technical problems such as equipment anti-floating after dry ground operation, antiskid, underwater penetration be small,
With very strong operability and applicability, while in place, the disassembly and assembly time in cofferdam can be shortened, simplify operating procedure, save
Operating time shortens the construction period, and improves all transfer efficients of device.The utility model can be widely applied to similar water channel, dykes and dams in this way
Hydraulic engineering with lining cutting slope surface, has a good application prospect.
Claims (9)
1. a kind of self balance combined water-retaining cofferdam, which is characterized in that including the level as made of modular unit segmented assembly
Be projected as the enclosing structure (1) of open splayed or open rectangle, for enclosing structure (1) each modular unit respectively into
One group of support construction (2) of row support, and the counter-force balanced structure for enclosing structure (1) integrally to be stablized and reinforced
(3)；Each modular unit of the enclosing structure (1) includes pedestal (11), column (12), water retaining facing (13)；Each
The weight of pedestal (11) is not less than 1 ton comprising is respectively arranged at the pedestal T shape socket joint slot (111) and pedestal T shape socket joint at both ends
Head (112) is provided with installation bayonet (113), the pedestal for being respectively used to vertical columns (12), water retaining facing (13) on pedestal (11)
Water retaining facing limiting slot (114), the bottom surface of pedestal (11) are fixedly installed pedestal plate soft rubber plate (115), pedestal (11)
The side that meets water be provided with pedestal rubber Water shielding curtain (116)；The pedestal (11) include be respectively used to enclosing structure (1) bottom edge and
The bottom edge pedestal and side pedestal of side, and the corner pedestals for connecting bottom edge pedestal and side pedestal；Bottom edge pedestal
Cross sectional shape is right-angled trapezium, and the sharp angle in four angles of the right-angled trapezium is equal between construction water channel lining cutting slope surface and horizontal plane
Angle；The cross sectional shape of side pedestal is rectangle；Corner pedestals are by identical as the section of side pedestal and bottom edge pedestal respectively
Two sections be formed by connecting.
2. self balance combined water-retaining cofferdam as described in claim 1, which is characterized in that the radially opposite sides of column (12) are set respectively
Be equipped with the column water retaining facing limiting slot (121) for being inserted into water retaining facing (13), at least one end of column (12) be provided with
Landing nipple (122) are installed in the female type connection that the installation bayonet (113) of pedestal (11) matches, and are arranged on column (12) useful
Connection structure in connected support structure (2).
3. self balance combined water-retaining cofferdam as described in claim 1, which is characterized in that the support construction (2) includes support
Leverage (21), plate bearing (22)；Braced bar system (21) is adjustable triangular structure comprising upper links (211), lower part connect
Bar (212), and it is set to four connection sleeves (213) at upper links (211) both ends and lower link (212) both ends；On
Portion's connecting rod (211) and lower link (212) are the solid cylinder that both ends are respectively arranged with rectangle lead screw transmission tooth, connect sleeve
(213) section is annulus, and inner ring is provided with rectangular inner meshing gear compatible with the rectangle lead screw transmission tooth.
4. self balance combined water-retaining cofferdam as described in claim 1, which is characterized in that the pedestal rubber Water shielding curtain (116)
For the free flexible combination rubber slab of bilayer being composed of the thicker rubber slab in upper layer and the relatively thin rubber slab of lower layer.
5. self balance combined water-retaining cofferdam as described in claim 1, which is characterized in that the main body of the water retaining facing (13) is
It is provided with the plane steel facing (131) of stiffener plate (132), is respectively provided on the bottom edge of plane steel facing (131) and two sides
There is water sealing structure.
6. self balance combined water-retaining cofferdam as claimed in claim 5, which is characterized in that the water sealing structure is by back side waterstop
(134) and the side waterstop (133) of two sides composition, the waterstop are flexible flat rubber slab or expansion sealing strip.
7. self balance combined water-retaining cofferdam as described in claim 1, which is characterized in that the counter-force balanced structure (3) includes
One group be fixedly installed on side slope surface can accommodate the reaction box (31) of mass, and each reaction box (31) can pass through company respectively
Extension bar (32) is connect with pedestal (11).
8. self balance combined water-retaining cofferdam as claimed in claim 7, which is characterized in that the bottom surface setting of reaction box (31) is useful
In the friction structure for increasing coefficient of friction between reaction box (31) and side slope surface.
9. self balance combined water-retaining cofferdam as described in claim 1, which is characterized in that be provided with installation positioning on column (12)
It manages (124).
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| CN201822098745.2U CN209412843U (en) | 2018-12-14 | 2018-12-14 | A kind of self balance combined water-retaining cofferdam |
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| CN201822098745.2U CN209412843U (en) | 2018-12-14 | 2018-12-14 | A kind of self balance combined water-retaining cofferdam |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111648311A (en) * | 2020-05-29 | 2020-09-11 | 中国葛洲坝集团第一工程有限公司 | Enclosure device for maintaining connecting seam of aqueduct without water interruption |
| CN111648312A (en) * | 2020-05-29 | 2020-09-11 | 中国葛洲坝集团第一工程有限公司 | Construction method for maintaining connecting joint of aqueduct without water interruption |
| CN112323833A (en) * | 2020-11-10 | 2021-02-05 | 武汉市城市防洪勘测设计院有限公司 | Water conservancy construction cofferdam device and use method thereof |
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2018
- 2018-12-14 CN CN201822098745.2U patent/CN209412843U/en active Active
Cited By (5)
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| CN111648311A (en) * | 2020-05-29 | 2020-09-11 | 中国葛洲坝集团第一工程有限公司 | Enclosure device for maintaining connecting seam of aqueduct without water interruption |
| CN111648312A (en) * | 2020-05-29 | 2020-09-11 | 中国葛洲坝集团第一工程有限公司 | Construction method for maintaining connecting joint of aqueduct without water interruption |
| CN111648311B (en) * | 2020-05-29 | 2021-12-03 | 中国葛洲坝集团第一工程有限公司 | Enclosure device for maintaining connecting seam of aqueduct without water interruption |
| CN112323833A (en) * | 2020-11-10 | 2021-02-05 | 武汉市城市防洪勘测设计院有限公司 | Water conservancy construction cofferdam device and use method thereof |
| CN112323833B (en) * | 2020-11-10 | 2022-03-22 | 武汉市城市防洪勘测设计院有限公司 | Water conservancy construction cofferdam device and use method thereof |
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Effective date of registration: 20220920 Address after: 100000 No. 58, nanxiange street, Xicheng District, Beijing Patentee after: China South to North Water Diversion group middle line Co.,Ltd. Patentee after: YELLOW RIVER CONSTRUCTION ENGINEERING GROUP Co.,Ltd. Patentee after: HOHAI University Patentee after: South to North Water Transfer Middle Route Industrial Development Co.,Ltd. Address before: 100000 No. 58, nanxiange street, Xicheng District, Beijing Patentee before: China South to North Water Diversion group middle line Co.,Ltd. Patentee before: YELLOW RIVER CONSTRUCTION ENGINEERING GROUP Co.,Ltd. Patentee before: HOHAI University |
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