CN110468860A - For the water sealing structure between underwater canopy cofferdam bottom panel and lining cutting - Google Patents
For the water sealing structure between underwater canopy cofferdam bottom panel and lining cutting Download PDFInfo
- Publication number
- CN110468860A CN110468860A CN201910882607.XA CN201910882607A CN110468860A CN 110468860 A CN110468860 A CN 110468860A CN 201910882607 A CN201910882607 A CN 201910882607A CN 110468860 A CN110468860 A CN 110468860A
- Authority
- CN
- China
- Prior art keywords
- waterstop
- cofferdam
- water
- interior
- seepage flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 238000007789 sealing Methods 0.000 title claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 239000003566 sealing material Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 108091006146 Channels Proteins 0.000 description 21
- 238000010586 diagram Methods 0.000 description 6
- 102000010637 Aquaporins Human genes 0.000 description 5
- 108010063290 Aquaporins Proteins 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 239000010985 leather Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003466 welding 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
Abstract
The invention discloses a kind of water sealing structures between underwater canopy cofferdam bottom panel and lining cutting, the outer waterstop of close ditch water flow side between joint surface and the interior waterstop of close cofferdam workspace side are built including being arranged at intervals on the three weeks backing plates in cofferdam steel truss bottom surface and side slope/canal bottom liner, the outer waterstop is the sealing material that cross section is omega shape, the interior waterstop is the rubber pneumatic bag that cross section is circular configuration, seepage flow water collection channel is formed between outer waterstop and interior waterstop, overflow hole is offered on the backing plate at the top of the seepage flow water collection channel at canal bottom.Inside and outside twice sealing is arranged in the present invention between backing plate and lining cutting, seepage flow water collection channel is formed between twice sealing, outer waterstop uses General Purpose Rubber material, and interior waterstop selects airbag structure, it can make air bag by filling exhaust and adapt to the irregularity degree of lining, so that it is guaranteed that the leakproofness in cofferdam.
Description
Technical field
The present invention relates to the water-stop technology fields in hydraulic engineering, are used for underwater canopy cofferdam bottom more particularly, to one kind
Water sealing structure between panel and lining cutting.
Background technique
Lining cutting panel in canal for water conveyance be often in the presence of crack, the needs reparation such as swell, collapse, for water level
Lower channel usually piles up enclosing with sandbag and forms construction area.Water flow is penetrated into enclosing in order to prevent, needs to be laid with waterproof
Film constitutes water sealing structure.The main channel of Water Transfer Project from South to North of 7m is up to for large-scale canal for water conveyance, such as design head, sandbag piles up water blocking
Significant discomfort is suitable, needs using canopy cofferdam as shown in Figure 1, 2.The steel truss top of support and three, outside facade in canopy cofferdam are equal
It is equipped with panel, can be mutually isolated by channel flowing water and working region, still, how to make canopy cofferdam bottom surface three weeks and channel
Slope surface/canal bottom liner forms effective hermetic seal between building, and is the matter of utmost importance for needing to solve at present.
Summary of the invention
The present invention provides a kind of water sealing structure between underwater canopy cofferdam bottom panel and lining cutting, it is therefore intended that solution
Certainly existing canopy cofferdam bottom surface three weeks and channel slope surface/canal bottom liner build between the bad problem of hermetic seal effect structure.
To achieve the above object, the present invention can take following technical proposals:
Water sealing structure of the present invention between underwater canopy cofferdam bottom panel and lining cutting, including be arranged at intervals on and enclose
The three weeks backing plates in weir steel truss bottom surface and side slope/canal bottom liner build the close ditch water flow side between joint surface outer waterstop and
Interior waterstop close to cofferdam workspace side, the outer waterstop are the sealing materials that cross section is omega shape, described interior
Waterstop is the rubber pneumatic bag that cross section is circular configuration, and seepage flow water collection channel is formed between outer waterstop and interior waterstop,
Overflow hole is offered on the backing plate at the top of the seepage flow water collection channel at canal bottom.
Provided by the present invention for the water sealing structure between underwater canopy cofferdam bottom panel and lining cutting, in backing plate and lining cutting
Between inside and outside twice sealing is set, seepage flow water collection channel is formed between twice sealing, outer waterstop uses General Purpose Rubber material,
Interior waterstop selects airbag structure, can make air bag by filling exhaust and adapt to the irregularity degree of lining.In use, outer sealing
For band for keeping out most channel flowing water pressure, a small amount of seepage water can converge along seepage flow water collection channel is discharged to specific bit
It sets, so that it is guaranteed that the leakproofness in cofferdam.
Detailed description of the invention
Fig. 1 is the structural schematic diagram in canopy formula cofferdam.
Fig. 2 is the A-A sectional view in Fig. 1.
Fig. 3 is structural schematic diagram of the invention.
Fig. 4 is the cross-sectional configuration schematic diagram of the China and foreign countries Fig. 3 waterstop.
Fig. 5 is the cross-sectional configuration schematic diagram of interior waterstop in Fig. 3.
Fig. 6 is water sealing structure is constituted through the invention cofferdam (being parallel to slope surface region) water-conveying network water flow to schematic diagram.
Fig. 7 is the water sealing structure schematic diagram in Fig. 6 between the adjacent panels of cofferdam.
Specific embodiment
As shown in figure 3, the water sealing structure of the present invention between underwater canopy cofferdam bottom panel and lining cutting, packet
Include the close ditch water flow one being arranged at intervals between the three weeks backing plates in cofferdam steel truss bottom surface and side slope/canal bottom liner block joint surface
The interior waterstop 2 of the outer waterstop 1 of side and close cofferdam workspace side.Outer waterstop 1 and 2 entirety of interior waterstop are in U-shape,
It is connected on the steel truss of cofferdam by installation frame.Outer waterstop 1 is the sealing material that cross section as shown in Figure 4 is omega shape
Material, interior waterstop 2 are the rubber pneumatic bags that cross section as shown in Figure 5 is circular configuration, can be by adjusting the tolerance in air bag
To adapt to the lining cutting surface of out-of-flatness.Seepage flow water collection channel 3 is formed between outer waterstop 1 and interior waterstop 2, positioned at canal bottom
Overflow hole 4 is offered on the backing plate at 3 top of seepage flow water collection channel.
It is connected between the panel that cofferdam steel truss rest part is laid with by another water sealing structure sealing.For example, in Fig. 6
Water sealing structure vertical section is as shown in Figure 7 between cofferdam top panel Q1, Q2.Specifically, including panel 5.1,5.1 lower surface of panel
The channel steel 5.2 of welding is spirally connected with cofferdam steel truss to be connected, and the edge of each panel 5.1, and adjacent panels are arranged in channel steel 5.2
5.1 are spirally connected connected by the bolt being threaded through on adjacent 5.2 web of channel steel, are provided with sealing rubber between adjacent 5.2 web of channel steel
Leather strap, above-mentioned bolt is set as two rows of along 5.1 splicing seams direction of panel, including 5.3 He of outer bolt close to ditch water flow side
Inner bolt 5.4 close to cofferdam workspace side, above-mentioned water stop rubber item include the common rubber being arranged on the outside of outer bolt 5.3
Outer water stop rubber item 5.5 made of glue and the interior sealing rubber made of hydro-expansive rubber being arranged on the outside of inner bolt 5.4
Leather strap 5.6 forms seepage flow aquaporin 5.7 between outer water stop rubber item 5.5 and interior water stop rubber item 5.6.Stop in order to facilitate the installation of
Water rubber item is equipped with outer locating piece 5.8 and interior locating piece 5.9 between adjacent 2 web of channel steel, wherein outer locating piece 5.8 is worn
It is located on outer bolt 5.3, interior locating piece 5.9 is threaded through on inner bolt 5.4.The thickness of above-mentioned outer, interior locating piece 5.8,5.9 is little
In outer, interior water stop rubber item 5.5,5.6 by compressed thickness.Joint surface between remaining adjacent panels is also according to mentioned above principle
(i.e. the seepage flow aquaporin of water sealing structure along jointing line direction, inside and outside water stop rubber item be separately mounted to close to workspace side and
Close to channel flowing water side) installation water sealing structure.
As shown in fig. 6, all seepage flow aquaporins, which are interconnected, forms water-conveying network.On the top surface of cofferdam in seepage flow aquaporin 5.7
Seepage flow aquaporin 5.7 of the seepage water from centre to both sides, from eminence to lower through side converged to respectively positioned at slope surface/canal bottom
In seepage flow water collection channel 3 at lining cutting, then converged to from high in the end positioned at the seepage water at slope surface in seepage flow water collection channel 3
In the seepage flow water collection channel 3 of canal bottom, when water is more, it can flow out, reach from the overflow hole 4 being arranged on the backing plate of top
To it is a certain amount of when, pass through suction pump 6 as shown in Figure 2 and carry out pump drainage, it is ensured that the workspace in cofferdam is in water-less environment.
Claims (1)
1. a kind of water sealing structure between underwater canopy cofferdam bottom panel and lining cutting, it is characterised in that: set including interval
The outer of close ditch water flow side set between the three weeks backing plates in cofferdam steel truss bottom surface and side slope/canal bottom liner block joint surface stops
The interior waterstop (2) of water band (1) and close cofferdam workspace side, the outer waterstop (1) are that cross section is omega shape
Sealing material, the interior waterstop (2) are the rubber pneumatic bag that cross section is circular configuration, outer waterstop (1) and interior waterstop (2)
Between formed seepage flow water collection channel (3), offered on the backing plate at the top of the seepage flow water collection channel (3) at canal bottom excessive
Discharge orifice (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910882607.XA CN110468860A (en) | 2019-09-18 | 2019-09-18 | For the water sealing structure between underwater canopy cofferdam bottom panel and lining cutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910882607.XA CN110468860A (en) | 2019-09-18 | 2019-09-18 | For the water sealing structure between underwater canopy cofferdam bottom panel and lining cutting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110468860A true CN110468860A (en) | 2019-11-19 |
Family
ID=68516250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910882607.XA Pending CN110468860A (en) | 2019-09-18 | 2019-09-18 | For the water sealing structure between underwater canopy cofferdam bottom panel and lining cutting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110468860A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113481821A (en) * | 2021-07-27 | 2021-10-08 | 武大巨成结构股份有限公司 | Overhaul device and method for inner bottom surface of aqueduct |
| CN114703897A (en) * | 2022-04-19 | 2022-07-05 | 河南省水利勘测设计研究有限公司 | High-efficient stagnant water structure suitable for assembly under water |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001152425A (en) * | 1999-11-25 | 2001-06-05 | World Engineering Kk | Impervious structure of revetment |
| CN203684241U (en) * | 2013-12-16 | 2014-07-02 | 株洲时代新材料科技股份有限公司 | Waterstop for boxed cofferdam and sealing structure of boxed cofferdam and concrete pile cap |
| CN107780423A (en) * | 2017-11-24 | 2018-03-09 | 河南水建集团有限公司 | Adjustable water cofferdam |
| CN109339079A (en) * | 2018-12-05 | 2019-02-15 | 中铁科学研究院有限公司 | A kind of foundation pit water-stopping system and its construction technology close to river permeable stratum |
| CN208618441U (en) * | 2018-07-03 | 2019-03-19 | 上海市水利工程设计研究院有限公司 | A kind of prefabricated assembled retaining wall with good water-stagnating effect |
| CN109577278A (en) * | 2018-12-14 | 2019-04-05 | 郑州大学 | A kind of water channel side slope self-balancing type double-walled cofferdam |
| CN210712888U (en) * | 2019-09-18 | 2020-06-09 | 河南省水利勘测设计研究有限公司 | Water stop structure used between bottom panel and lining of underwater awning type cofferdam |
-
2019
- 2019-09-18 CN CN201910882607.XA patent/CN110468860A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001152425A (en) * | 1999-11-25 | 2001-06-05 | World Engineering Kk | Impervious structure of revetment |
| CN203684241U (en) * | 2013-12-16 | 2014-07-02 | 株洲时代新材料科技股份有限公司 | Waterstop for boxed cofferdam and sealing structure of boxed cofferdam and concrete pile cap |
| CN107780423A (en) * | 2017-11-24 | 2018-03-09 | 河南水建集团有限公司 | Adjustable water cofferdam |
| CN208618441U (en) * | 2018-07-03 | 2019-03-19 | 上海市水利工程设计研究院有限公司 | A kind of prefabricated assembled retaining wall with good water-stagnating effect |
| CN109339079A (en) * | 2018-12-05 | 2019-02-15 | 中铁科学研究院有限公司 | A kind of foundation pit water-stopping system and its construction technology close to river permeable stratum |
| CN109577278A (en) * | 2018-12-14 | 2019-04-05 | 郑州大学 | A kind of water channel side slope self-balancing type double-walled cofferdam |
| CN210712888U (en) * | 2019-09-18 | 2020-06-09 | 河南省水利勘测设计研究有限公司 | Water stop structure used between bottom panel and lining of underwater awning type cofferdam |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113481821A (en) * | 2021-07-27 | 2021-10-08 | 武大巨成结构股份有限公司 | Overhaul device and method for inner bottom surface of aqueduct |
| 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 |
| CN114703897A (en) * | 2022-04-19 | 2022-07-05 | 河南省水利勘测设计研究有限公司 | High-efficient stagnant water structure suitable for assembly under water |
| CN114703897B (en) * | 2022-04-19 | 2023-11-14 | 河南省水利勘测设计研究有限公司 | High-efficient stagnant water structure suitable for assembly under water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 450016 No. 16, Kangping Road, Zheng Dong New District, Henan, Zhengzhou Applicant after: Henan Water & Power Consulting Engineering Co., Ltd. Applicant after: Central Route Construction Management Bureau of South to North Water Transfer Project Address before: No. 58, Ge street, South line, Xicheng District, Beijing 100038 Applicant before: Central Route Construction Management Bureau of South to North Water Transfer Project Applicant before: Henan Water & Power Consulting Engineering Co., Ltd. |
|
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |