CN107044130B - The channel steel cofferdam quickly repaired for the slope lining cutting of water channel canal - Google Patents
The channel steel cofferdam quickly repaired for the slope lining cutting of water channel canal Download PDFInfo
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- CN107044130B CN107044130B CN201710411924.4A CN201710411924A CN107044130B CN 107044130 B CN107044130 B CN 107044130B CN 201710411924 A CN201710411924 A CN 201710411924A CN 107044130 B CN107044130 B CN 107044130B
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- 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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses a kind of channel steel cofferdams quickly repaired for the slope lining cutting of water channel canal, and including the weir body being arranged along canal slope liner plate slope aspect, weir body is made of inverted U-shaped section be fastened on the liner plate of canal slope and closure unit of the sealing linking in inverted U-shaped section of lower end；Inverted U-shaped section passes sequentially through flange by the inverted U-shaped weir body unit of the identical more piece of structure and sealing ring seals against each other connection；It is provided with sealing device between the inverted U-shaped weir body unit of every section and the contact surface of canal slope liner plate and between closure unit and canal slope liner plate and the contact surface of canal bottom plate, inhales to be fixedly mounted with and set and positioning apparatus；The sandwich that the roof and wall of inverted U-shaped weir body unit and closure unit are made of inner plate body and outer plate body, is fixedly connected by spaced steel skeleton between inner plate body and outer plate body, is respectively arranged with water tank in the interlayer between the adjacent steel skeleton.The invention has the advantages that structure is simple, modularized design, can be rapidly assembled and disassembled at the scene.
Description
Technical field
The present invention relates to steel cofferdams, are especially for the channel steel cofferdam that the slope lining cutting of water channel canal is quickly repaired.
Background technique
During channel hydraulic pipeline, concrete lining plate is it is possible that cracking, collapsing, the damage phenomenon such as anti-floating unstability.When
When liner plate is damaged, local head loss will be caused to increase to a certain extent, seepage prevention system destruction, slope is caused when serious
The softening of body soil leads to slope instability, influences the safe operation of channel.If levee slope liner plate occurs damaged and cutout is taken to arrange
It applies and is repaired, will seriously affect the domestic water and industrial water of town dweller along canal engineering.Therefore, it is necessary to a kind of special
With cofferdam, not only construction at dry land environment can be formed above and below in the canal slope water surface, damaged liner plate is repaired, but also answers
When having convenient transportation, be rapidly assembled and disassembled, while requiring cofferdam basal area smaller, the carrying capacity of channel is influenced it is smaller,
It realizes the target to supply water in repairing construction, but yet there are no all related reports.
Summary of the invention
It is an object of that present invention to provide a kind of channel steel cofferdams quickly repaired for the slope lining cutting of water channel canal, reach and both meet
Channel continuous water supply can form nonirrigated farmland working face under water again, convenient for open repairing construction.
To achieve the above object, the present invention takes following technical proposals:
The channel steel cofferdam of the present invention quickly repaired for the slope lining cutting of water channel canal, including set along canal slope liner plate slope aspect
The weir body set, the weir body is by inverted U-shaped section be fastened on the liner plate of the canal slope and sealing linking in the inverted U-shaped section of lower end
The closure unit in portion is constituted；Described inverted U-shaped section passes sequentially through flange and sealing ring by the inverted U-shaped weir body unit of the identical more piece of structure
Seal against each other connection；Between inverted U-shaped weir body unit and the contact surface of canal slope liner plate described in every section and the closure unit with
It is provided with sealing device between canal slope liner plate and the contact surface of canal bottom plate, inhales to be fixedly mounted with and set and positioning apparatus；Inverted U-shaped weir body list
Member and the roof and the sandwich that is made of inner plate body and outer plate body of wall for blocking unit, the inner plate body and outer plate body it
Between be fixedly connected by spaced steel skeleton, be respectively arranged with water tank in the interlayer between the adjacent steel skeleton.
The sealing device by: along the inverted U-shaped weir body unit and block unit the wall outside plate body bottom edge outside
The L shape water seal of edge setting and the linear type water seal of inner edge setting and the wall inner panel along inverted U-shaped weir body unit and closure unit
The water-swellable waterstop of the bottom edge outer rim setting of body is constituted, and the horizontal edge of the L shape water seal extends except the outer plate body of wall；
It is described suction be fixedly mounted with set by: be arranged in the inverted U-shaped weir body unit and block unit interlayer bottom vacuum chuck and
Vacuum chamber and be arranged in inverted U-shaped weir body unit and block unit wall inner plate body outer plate surface vacuum pipe constitute, institute
It states vacuum chuck bleeding point to be connected with the vacuum chamber, vacuum chamber is connected with the vacuum pipe；
The positioning apparatus by: be arranged in the inverted U-shaped weir body unit and block unit interlayer bottom sliding block and setting
Bellows type air spring on the slide block is constituted.
The wall height that inverted U-shaped section of the weir body is located at upstream face is greater than the wall height of back side；The upstream face
Wall, back side wall and the roof junction are arc transiting surface.
The invention has the advantages that the steel cofferdam has, structure is simple, modularized design, can at the scene Fast Installation and
Disassembly.It is smaller to the water delivery flow effect of channel since the face of blocking water is small, but also convenient for storage, transport and installation, it is very suitable to
In the water channel for having particular/special requirement to water delivery flow.Damaged canal can be quickly repaired using construction at dry land due to realizing not stop
Slope liner plate, therefore this steel cofferdam popularization and application foreground in water diversion project is wide.
Detailed description of the invention
Fig. 1 is schematic diagram of the present invention along canal slope liner plate slope aspect arrangement.
Fig. 2 is the structural schematic diagram of inverted U-shaped weir body of the present invention.
Fig. 3 is the A-A of Fig. 2 to schematic cross-sectional view.
Fig. 4 is the portion the I enlarged structure schematic diagram of Fig. 3.
Fig. 5 is the portion the J enlarged structure schematic diagram of Fig. 2.
Fig. 6 is the B-B direction schematic cross-sectional view of Fig. 2.
Fig. 7 is the portion the K enlarged structure schematic diagram of Fig. 6.
Fig. 8 is the C-O-C of Fig. 2 to stagewise cutaway view structural schematic diagram.
Fig. 9 is the portion the L enlarged structure schematic diagram of Fig. 8.
Specific embodiment
It elaborates with reference to the accompanying drawing to the embodiment of the present invention, the present embodiment before being with technical solution of the present invention
It puts and is implemented, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to down
State embodiment.
As shown in figs 1-9, the channel steel cofferdam of the present invention quickly repaired for the slope lining cutting of water channel canal, including along canal slope
The weir body of 1 slope aspect of liner plate arrangement, weir body is by inverted U-shaped section 2 be fastened on canal slope liner plate 1 and sealing linking in inverted U-shaped section 2
The closure unit 3 of lower end is constituted, and the wall height that inverted U-shaped section 2 of weir body is located at upstream face is greater than the wall height of back side；
Upstream face wall, back side wall and roof junction are arc transiting surface；Inverted U-shaped section 2 by the inverted U-shaped weir of the identical more piece of structure
Body unit passes sequentially through flange 4 and sealing ring seals against each other connection；The contact of every section inverted U-shaped weir body unit and canal slope liner plate 1
Sealing device is provided between face and between closure unit 3 and canal slope liner plate 1 and the contact surface of canal bottom plate, suction is fixedly mounted with
It sets and positioning apparatus；The folder that the roof and wall of inverted U-shaped weir body unit and closure unit 3 are made of inner plate body 5 and outer plate body 6
Layer structure, is fixedly connected between inner plate body 5 and outer plate body 6 by spaced I-shaped steel skeleton 7, and adjacent I-shaped reinforcing bar is located at
Water tank 8 is respectively arranged in interlayer between frame 7, each water tank 8 is respectively arranged with shut-off valve 8.1.
As shown in Fig. 2,5, sealing device by: along inverted U-shaped weir body unit and block unit wall outside plate body 6 bottom edge outside
The L shape water seal 9 of edge setting and the linear type water seal 10 of inner edge setting and the wall along inverted U-shaped weir body unit and closure unit
The water-swellable waterstop 11 of the bottom edge outer rim setting of inner plate body 5 is constituted, and the horizontal edge of L shape water seal 9 extends the outer plate body 6 of wall
Except；
As shown in Fig. 2,5,8,9, inhale be fixedly mounted with set by: be arranged in inverted U-shaped weir body unit and block unit interlayer bottom it is true
Suction disk 12 and vacuum chamber 13 and be arranged in inverted U-shaped weir body unit and block unit 5 outer plate surface of wall inner plate body it is true
Vacant duct 14 is constituted, and 12 bleeding point of vacuum chuck is connected with vacuum chamber 13, and vacuum chamber 13 is connected with vacuum pipe 14；
As shown in Fig. 2,5,8,9, positioning apparatus by: be arranged in inverted U-shaped weir body unit and block unit interlayer bottom cunning
Block 15 and the bellows type air spring 16 being arranged on sliding block 15 are constituted, and bellows type air spring 16 is by being arranged in inverted U-shaped weir body list
Member and the pump drainage tracheae 17 blocked in unit interlayer are connected with air compressor.
Working principle of the present invention is summarized as follows:
1, inverted U-shaped section 2 of weir body be located at upstream face wall height be greater than back side wall height, upstream face wall,
Back side wall and roof junction are arranged to arc transiting surface, to constitute the streamline shape of wedge shape and end, are conducive to subtract
Percussion of the weep to steel cofferdam；According to Hydrodynamics Theory, since the Shapes of object have directly through the water flow of object
Influence is connect, the body form of opposite water flow determines its resistance coefficient, therefore uses streamlined steel cofferdam shape, reaches reduction
The form drag of steel cofferdam improves steel cofferdam stability purpose.
2, it sealing antiseepage: is made of L shape water seal 9, linear type water seal 10, water-swellable waterstop 11, using multinomial technology
Measure antiseepage improves the reliability of steel cofferdam；The outer side elevation bottom of steel cofferdam (the bottom edge outer rim of the outer plate body 6 of wall) sets one of L
Shape water seal 9 compresses sealing by the water pressure of channel, and inside (the bottom edge inner edge of the outer plate body 6 of wall) sets one of linear type water seal
10, the possibility leak at the positions such as the honeycomb, pitted skin, faulting of slab ends on blocking concrete surface under steel cofferdam Gravitative Loads；Steel cofferdam is vertical
Face bottom inside (the water-swellable waterstop 11 of the bottom edge outer rim setting of wall inner plate body 5) is equipped with water-swellable waterstop 11,
Sealing is carried out using its excellent elasticity, extensibility and expansion water-stop performance.Expansion rate can in water for water-swellable waterstop 11
It adjusts, swelling volume keeps the elasticity and extensibility of rubber, and expansion rate by water quality impact, does not have adaptive temperature range wide, resistance to
Long function admirable, without harmful substance, without deep swollen precipitate, do not pollute the features such as water quality；Lead between every inverted U-shaped weir body unit of section
The connection of flange 4 is crossed, sets twice O-ring seal among flange 4 to meet internode sealing requirement.
3, the sink-float device that water tank 8 constitutes steel cofferdam is set in the interlayer between adjacent I-shaped steel skeleton 7；When steel encloses
After the sliding in place of weir, steel cofferdam is increased to 8 water-filling of water tank by centrifugal Self-priming sewage pump, solenoid directional control valve and shut-off valve 8.1
Counterweight stablizes steel cofferdam on 1 surface of canal slope liner plate；When removing steel cofferdam, pass through centrifugal Self-priming sewage pump, electromagnetic switch
Valve and shut-off valve 8.1 inflate the water in water tank 8 toward steel cofferdam internal drainage concora crush, while in water tank 8, increase steel cofferdam
Buoyancy makes sealing device be detached from 1 surface of canal slope liner plate.
4, the vacuum chuck 12 and vacuum chamber for being fixedly mounted with and installing in inverted U-shaped weir body unit and block unit interlayer bottom are inhaled
13 and be arranged in inverted U-shaped weir body unit and block unit 5 outer plate surface of wall inner plate body vacuum pipe 14 constitute；It utilizes
Water-ring vacuum pump forms negative pressure by vacuum chuck 12, inhales steel cofferdam solid on 1 surface of canal slope liner plate, solves steel cofferdam steel
Fixation but the technical problem of the existing liner plate of channel cannot be destroyed.
5, positioning apparatus is made of sliding block 15 and bellows type air spring 16；Bellows type air spring 16 by pump drainage tracheae 17,
Regulating valve, displacement sensor and air accumulator and drying, dirt catcher are connected with air compressor, by bellows type air spring 16
Interior is filled and deflated by, and adjusts the height of bellows type air spring 16.
When steel cofferdam is installed, steel sliding rail is laid in the two sides Qu Po for needing to repair first, is positioned.Steel cofferdam is hung vertical
Onto steel sliding rail, after the sliding in place of sliding block 15, controlling to adjust valve makes bellows type air spring 16 deflate, and reduces bellows air bullet
The height of spring 16, by centrifugal Self-priming sewage pump, solenoid directional control valve and shut-off valve 8.1, into water tank 8, water-filling increases counterweight, makes
Steel cofferdam sinks down into 1 upper surface of canal slope liner plate, after steel sliding rail fully enters in steel cofferdam cavity, starts water pump pump drainage steel cofferdam
Internal occluded water, then starting vacuum pump continuous air extraction makes vacuum chuck 12 be adsorbed onto 1 upper surface of canal slope liner plate, completes steel and encloses
Weir installation, forms nonirrigated farmland working face under water, to repair damaged liner plate.When removing steel cofferdam, vacuum pump stops pumping,
By centrifugal Self-priming sewage pump, solenoid directional control valve and shut-off valve 8.1 by the water in water tank 8 toward concora crush is discharged inside steel cofferdam,
The buoyancy for increasing steel cofferdam is inflated in water tank 8 simultaneously, sealing device is made to be detached from 1 upper surface of canal slope liner plate；Control to adjust valve
Inflate bellows type air spring 16, steel sliding rail is detached from steel cofferdam, while slinging steel cofferdam to land, completes steel cofferdam and removes.
6, steel cofferdam passes sequentially through flange 4 by the inverted U-shaped weir body unit of more piece and sealing ring seals against each other connection, not only realizes
The live quick-assembling of steel cofferdam and disassembly, and it is also convenient for the transport, maintenance and replacement of steel cofferdam；Inner plate body 5 and outer plate body 6
Between with standard I-steel 7 be keel, intensity is high, meets applying working condition intensity requirement, convenient for manufacture；It is equipped with not between I-steel 7
Become rusty reinforced plastic water container 8, increases steel cofferdam overall stiffness, meets and bears effect of water pressure.
Claims (3)
1. a kind of channel steel cofferdam quickly repaired for the slope lining cutting of water channel canal, it is characterised in that: including along canal slope liner plate slope
To the weir body of setting, the weir body is by inverted U-shaped section be fastened on the liner plate of the canal slope and sealing linking in described inverted U-shaped section
The closure unit of lower end is constituted；Described inverted U-shaped section passes sequentially through flange and close by the inverted U-shaped weir body unit of the identical more piece of structure
Seal seals against each other connection；Between inverted U-shaped weir body unit and the contact surface of canal slope liner plate described in every section and the closure is single
It is provided with sealing device between member and canal slope liner plate and the contact surface of canal bottom plate, inhales to be fixedly mounted with and set and positioning apparatus；Inverted U-shaped weir
The sandwich that the roof and wall of body unit and closure unit are made of inner plate body and outer plate body, the inner plate body and outside plate
It is fixedly connected between body by spaced steel skeleton, is respectively arranged with water in the interlayer between the adjacent steel skeleton
Case.
2. the channel steel cofferdam quickly repaired for the slope lining cutting of water channel canal according to claim 1, it is characterised in that: described close
Seal apparatus by: along the inverted U-shaped weir body unit and block unit the wall outside plate body bottom edge outer rim setting L shape water seal
It linear type water seal with inner edge setting and along inverted U-shaped weir body unit and blocks the bottom edge outer rim of wall inner plate body of unit and sets
The water-swellable waterstop set is constituted, and the horizontal edge of the L shape water seal extends except the outer plate body of wall；
It is described suction be fixedly mounted with set by: be arranged in the inverted U-shaped weir body unit and block unit interlayer bottom vacuum chuck and vacuum
Chamber and be arranged in inverted U-shaped weir body unit and block unit wall inner plate body outer plate surface vacuum pipe constitute, it is described
Vacuum chuck bleeding point is connected with the vacuum chamber, and vacuum chamber is connected with the vacuum pipe；
The positioning apparatus by: be arranged in the inverted U-shaped weir body unit and block unit interlayer bottom sliding block and be arranged in institute
The bellows type air spring stated on sliding block is constituted.
3. the channel steel cofferdam according to claim 1 or claim 2 quickly repaired for the slope lining cutting of water channel canal, it is characterised in that: institute
The inverted U-shaped section of wall height for being located at upstream face for stating weir body is greater than the wall height of back side；The upstream face wall, back side
Wall and the roof junction are arc transiting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710411924.4A CN107044130B (en) | 2017-06-05 | 2017-06-05 | The channel steel cofferdam quickly repaired for the slope lining cutting of water channel canal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710411924.4A CN107044130B (en) | 2017-06-05 | 2017-06-05 | The channel steel cofferdam quickly repaired for the slope lining cutting of water channel canal |
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| Publication Number | Publication Date |
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| CN107044130A CN107044130A (en) | 2017-08-15 |
| CN107044130B true CN107044130B (en) | 2019-04-02 |
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| CN107780423B (en) * | 2017-11-24 | 2024-03-19 | 河南水建集团有限公司 | Adjustable water cofferdam |
| CN108775020B (en) * | 2018-07-05 | 2020-04-28 | 哈尔滨工业大学 | Self-balancing steel sheet pile cofferdam and method for repairing underwater concrete lining plate by using same |
| CN109083169B (en) * | 2018-09-15 | 2020-11-20 | 华北水利水电大学 | Rail sliding type channel cofferdam |
| CN109778882B (en) * | 2019-01-30 | 2021-01-01 | 华北水利水电大学 | Closed system channel steel cofferdam assembled at inclination angle |
| CN110029629A (en) * | 2019-05-23 | 2019-07-19 | 黄河水利委员会河南黄河河务局 | Harden the damaged underwater prosthetic device of channel and application method |
| CN110453706B (en) * | 2019-09-18 | 2024-06-04 | 河南省水利勘测设计研究有限公司 | Underwater awning type cofferdam for repairing side slope of channel |
| CN113356147A (en) * | 2021-06-21 | 2021-09-07 | 山东省水利科学研究院 | Water-blocking construction device |
| CN113481821B (en) * | 2021-07-27 | 2022-08-09 | 武大巨成结构股份有限公司 | Overhaul device and method for inner bottom surface of aqueduct |
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| CN206829156U (en) * | 2017-06-05 | 2018-01-02 | 黄河勘测规划设计有限公司 | The channel steel cofferdam quickly repaired for the slope lining cutting of water channel canal |
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| KR20060118302A (en) * | 2005-05-16 | 2006-11-23 | (주)아이엔 | Method for repairing cracks of waterway concrete structure |
| CN104790417A (en) * | 2015-04-17 | 2015-07-22 | 中水北方勘测设计研究有限责任公司 | Spliced chamber cofferdam for repair of canal lining projects |
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