CN207437099U - A kind of elasticity grouting back-pressure sealing structure at expansion joint - Google Patents
A kind of elasticity grouting back-pressure sealing structure at expansion joint Download PDFInfo
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- CN207437099U CN207437099U CN201720954341.1U CN201720954341U CN207437099U CN 207437099 U CN207437099 U CN 207437099U CN 201720954341 U CN201720954341 U CN 201720954341U CN 207437099 U CN207437099 U CN 207437099U
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- Prior art keywords
- epoxy mortar
- deformation joint
- expansion joint
- pressure sealing
- sealing structure
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Abstract
The utility model is related to a kind of elasticity grouting back-pressure sealing structures at expansion joint, including being located at Urban Underground piping lane, high ferro tunnel, common railway tunnel, vcehicular tunnel the injection material bed of material, elastomeric layer, elastic tube, the epoxy mortar faulting of slab ends of closure underground water are useful for from interior set gradually outward inside the deformation joint for having underground water between two concrete interfaces in structures and containing underground water or when rainy season, the deformation joint.The elasticity grouting back-pressure sealing structure at the utility model expansion joint can effectively be sealed deformation joint, solve the problems, such as that existing sealing technique leakage and sealing material repeatedly occurs and drops.
Description
Technical field
The utility model is related to expansion joint reserved in high-speed railway and urban track traffic tunnel, subsiding crack, deformation joints
Wait the elasticity grouting back-pressure sealing structure at part leakages water harnessing field, in particular to a kind of expansion joint.
Background technology
It is planned according to national mid-long term railway network plan and Urban Rail Transit Development, China Railway High-speed and city rail
Traffic enters the developing period of blowout, corresponding to build and tie up with high-speed railway and the fast development of urban track traffic
Guarantor's technology also encounters a series of technical barrier and challenge simultaneously there has also been quick progress.Particularly on plateau and mound
Mound area, many in an unbroken line mountains soar just as lying across in Chinese high ferro technology, the road blocking tiger to go to the world on road,
Chinese tunnel construction technology plays the role of vital on these mountain roads are passed through.
The tunnel excavation technology generally used now has shield method, shallow burial hidden digging, cut and cover method, is built carrying out tunnel-liner
If when, either spliced still using the method for cast-in-place concrete using shield duct piece, can all reserved in the construction process flexible
Seam, subsiding crack, also referred to as deformation joint prevent material because expanding with heat and contract with cold, foundation settlement causes what agent structure was difficult to repair to break
It is bad.
During tunnel construction, sealing belt surface plug layer of polyethylene foamed plastics is typically employed in, outermost uses polyurethane
Once the fluid sealant method waterstop that either materials such as polysulfide sealant are sealed occurs damaged or is not tight seal, just
Easily occurs the situation of percolating water at gap.
Deformation joint occurs carrying out bonding of the leak stopping because being related to two concrete interfaces and sealing material, ground after percolating water
The problems such as osmotic pressure of lower water, material performance in itself, being one needs the technical barrier captured.
Existing expansion joint, subsiding crack leak stopping sealing technique are generally using fluting method, rubber bar Sealing Method or perfusion third
The method of olefin(e) acid salt rear surface cement seal, these methods are sealed the probability that plugging effect is bad, leak repeatedly occurs
It is larger, when particularly rainy season ground water pressure is very big, sealing material is also directly extruded gap there are underground water and is dropped
Risk.
The content of the invention
The purpose of the utility model is to overcome above-mentioned the shortcomings of the prior art, and provide a kind of elasticity at expansion joint
Grouting back-pressure sealing structure, can be sealed deformation joint with very effective, solve existing sealing technique and occur repeatedly
The problem of leakage and sealing material drop.
What the purpose of this utility model was realized in：
The elasticity grouting back-pressure sealing structure at a kind of expansion joint, including being located between two concrete interfaces and containing underground
The deformation joint of water sets gradually the injection material bed of material for being useful for closure underground water, elastic material inside the deformation joint outward from interior
The bed of material, elastic tube, epoxy mortar faulting of slab ends.
The concrete surface is provided with the injected hole inside connection deformation joint, pre-buried at injected hole to be provided with aluminum pipe, fills
After the completion of pulp material layer is through aluminum pipe slip casting, the inlet closure of aluminum pipe is provided with epoxy mortar.
Angle between the injected hole and concrete surface is β, and β is 30 ° ~ 70 °, injected hole and deformation joint center
Distance for a, a is 50mm ~ 200mm.
The injection material bed of material is polyurathamc grouting material, polymer cement, third solidifying, epoxide resin grouting material,
One or two kinds of and above combination in acrylates grouting material is made.
The elastomeric layer packed height is c, and c is 10mm ~ 50mm, and elastomeric layer is embedded in deformation joint, and depth is
50mm~100mm。
The elastomeric layer is made of response type elastic material, including polyurethane modified epoxy resin, dimer acid modified
It is epoxy resin, dibatyl phithalate modified epoxy, rubber modified epoxy resin, elastane, silane-modified
One kind in polyether material be made or the elastomeric layer be uncured elastic material, including rubber modified asphalt material,
One kind in SBS modified asphalt materials, elastic rubbery body is made.
The elastic tube winding is provided with numb suede, and numb suede, which is impregnated with, is provided with elastic liquid material, and the outer diameter of elastic tube is 5mm
~ 25mm, the numb a diameter of 5mm ~ 30mm of suede, the entire outer diameter for the elastic tube that numb suede is wound are bigger 5mm ~ 35mm than deformation joint；It is described
Elastic liquid material is rubber modified asphalt material, SBS modified asphalt materials, elastic rubbery body material, elastic epoxy resin material
One kind in material, elastane is made, and the elastic tube is hollow pipe or solid tubes, including atactic copolymerized polypropene
One kind in pipe, ethylene-propylene-diene monomer sebific duct, polyethylene pipe, polyvinyl chloride pipe, PA tube, polyfluortetraethylene pipe moderate elasticity pipe
It is made.
The epoxy mortar faulting of slab ends height is flushed with concrete surface, and the width of epoxy mortar faulting of slab ends is 5mm ~ 15mm；Institute
It states epoxy mortar faulting of slab ends to be made of in the epoxy mortar platform being vertically spaced apart several, the vertical interval of adjacent two epoxy mortars platform
For f, f is 50mm ~ 200mm, epoxy mortar platform homonymy distribution or along left and right sides cross-distribution；The epoxy mortar faulting of slab ends
5mm ~ 15mm is reserved between deformation joint for preventing structure from expanding with heat and contract with cold and the gap of crimp.
It is provided with to seal the sealing material layer of deformation joint in the gap, sealing material layer is polyurethane sealant,
Silane modified polyether seal glue, silicane-modified polyurethane fluid sealant, silicone adhesive, polysulfide sealant, elastic polyurethane, elastic epoxy
One kind in resin material is made.
A kind of construction method of the elasticity grouting back-pressure sealing structure at expansion joint, the elasticity grouting including foregoing expansion joint are anti-
Pressure sealing structure, including following process：
A, clear up the inner cavity of deformation joint and modify the inner wall of deformation joint, make inner wall uniform and smooth；
B, the injected hole inside connection deformation joint, and the pre-buried aluminum pipe in injected hole are made on concrete；
C, filling elastic material forms elastomeric layer at the top of deformation joint；
D, the embedded elastic tube in deformation joint, and press the elastomeric layer having had been filled with；
E, deformation joint outermost is sealed using the epoxy mortar faulting of slab ends for preventing elastic tube from dropping and providing back-pressure effect
Seam, leaves gap, alternatively, being provided with the sealing material being made of elastic material in gap between epoxy mortar faulting of slab ends and concrete
Layer；
F, by pre-buried aluminum pipe, the injection material bed of material is formed to deformation joint inside injection grouting material, and clamps aluminium one by one
Pipe, finally covers injected hole with epoxy mortar.
The utility model has the beneficial effect that：
The elasticity grouting back-pressure sealing structure at expansion joint, according to the principle of " expand with heat and contract with cold, discharge deformation ", using toughness compared with
Good flexible material is handled, and is a kind of expansion joint reserved using the water swellable aqueous high molecular material pin injection of bubble, heavy
Closure percolating water in the positions such as seam, deformation joint drops, then added resilience safeguard measure provides counter-pressure, prevents underground water to grouting material shape
Into extrusion pressure, with keep high molecular material elasticity and back-pressure sealing based on a kind of comprehensive treatment technique.
The structure is compared compared with prior art, right with reference to distinctive technology by the excellent elasticity of multiple material
The extrusion pressure of anti-Groundwater formation prevents sealing material is extruded from dropping in tunnel, and sealing material possesses excellent in itself
Impermeability, the excellent cementability with concrete impart the extraordinary closure percolating water effect of the technology, solve existing close
There is the problem of leakage and sealing material drop repeatedly in encapsulation technique.
The utility model proposes a kind of elasticity grouting back-pressure sealing structure at expansion joint, which passes through grouting material, sealing
The multiple materials such as material, elastic tube and epoxy mortar are by specific technique to positions such as reserved expansion joint, subsiding crack, deformation joints
It is sealed, gap can be sealed with very effective, solve existing sealing technique and leakage and sealing material repeatedly occur
The problem of material drops.
Description of the drawings
Fig. 1 is the schematic diagram of one embodiment of the utility model.
Fig. 2 is the structure diagram one of one embodiment of the invention epoxy mortar faulting of slab ends.
Fig. 3 is the structure diagram two of one embodiment of the invention epoxy mortar faulting of slab ends.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and embodiments.
Referring to Fig. 1-3, the elasticity grouting back-pressure sealing structure at this expansion joint, including being located at Urban Underground piping lane, high ferro tunnel
Road, common railway tunnel, vcehicular tunnel when between two concrete interfaces in structures and containing underground water 2 or rainy season when contain ground
The deformation joint 1 of lower water 2, inside the deformation joint 1 from it is interior set gradually outward be useful for closure underground water 2 the injection material bed of material 4,
Elastomeric layer 5, elastic tube 6, epoxy mortar faulting of slab ends 7.
Further, the concrete surface is provided with the injected hole 3 inside connection deformation joint 1, pre- at injected hole 3 to bury
Aluminum pipe is equipped with, after the completion of the injection material bed of material 4 is through aluminum pipe slip casting, the inlet closure of aluminum pipe is provided with epoxy mortar.
Further, the angle between the injected hole 3 and concrete surface is β, and β is 30 ° ~ 70 °, and injected hole 3 is with becoming
Shape stitches the distance of 1 center as a, and a is 50mm ~ 200mm.
Further, the injection material bed of material 4 is polyurathamc grouting material, polymer cement, the third solidifying, epoxy resin
One or two kinds of and above combination in grouting material, acrylates grouting material is made.
Further, 5 packed height of elastomeric layer is c, and c is 10mm ~ 50mm, and elastomeric layer 5 is embedded in deformation
In seam 1, depth is 50mm ~ 100mm.
Further, the elastomeric layer 5 is made of response type elastic material, including polyurethane modified epoxy resin,
Dimer acid modified epoxy resin, dibatyl phithalate modified epoxy, rubber modified epoxy resin, elastic polyurethane material
One kind in material, silane modified polyether material is made, and the adhesion strength of response type elastic material and concrete is in 0.2Mpa, work
Time, elongation at break was between 10%-300% or the elastomeric layer 5 is uncured elastic material between 5s-30min
Material, is made including one kind in rubber modified asphalt material, SBS modified asphalt materials, elastic rubbery body.
Further, the winding of elastic tube 6 is provided with numb suede, and numb suede, which is impregnated with, is provided with elastic liquid material, elastic tube 6
Outer diameter for 5mm ~ 25mm, the numb a diameter of 5mm ~ 30mm of suede, the entire outer diameter for the elastic tube 6 that numb suede is wound is bigger than deformation joint 1
5mm ~ 35mm, d are the entire outer diameter for the elastic tube 6 that numb suede is wound；The elastic liquid material for rubber modified asphalt material,
One kind in SBS modified asphalt materials, elastic rubbery body material, elastic epoxy resin material, elastane is made, institute
Elastic tube 6 is stated as hollow pipe or solid tubes, including polypropylene random copolymer pipe, ethylene-propylene-diene monomer sebific duct, polyethylene pipe, polychlorostyrene second
One kind in the elastic tubes such as alkene pipe, PA tube, polyfluortetraethylene pipe is made.
Further, 7 height of epoxy mortar faulting of slab ends is flushed with concrete surface, and the width of epoxy mortar faulting of slab ends 7 is
5mm~15mm；The epoxy mortar faulting of slab ends 7 is made of several in the epoxy mortar platform 71 being vertically spaced apart, adjacent two epoxy glue
Mud platform 71 it is vertical at intervals of f, f is 50mm ~ 200mm, the distribution of 71 homonymy of epoxy mortar platform, as shown in Figure 2；Or along left and right two
Side cross-distribution, as shown in Figure 3；5mm ~ 15mm is reserved between the epoxy mortar faulting of slab ends 7 and deformation joint 1 for preventing that structure is hot
Swollen shrinkage and the gap of crimp, gap are left blank, any material can not be used to seal between them.
Alternatively, it is provided with to seal the sealing material layer 8 of deformation joint 1, sealing material as shown in this embodiment, in gap
Layer 8 for polyurethane sealant, silane modified polyether seal glue, silicane-modified polyurethane fluid sealant, silicone adhesive, polysulfide sealant,
One kind in elastic polyurethane, elastic epoxy resin material is made.
The construction method of the elasticity grouting back-pressure sealing structure at this expansion joint, the elasticity grouting back-pressure including foregoing expansion joint
Sealing structure, including following process：
A, clear up the inner cavity of deformation joint 1 and modify the inner wall of deformation joint 1, make inner wall uniform and smooth；
B, the injected hole 3 inside connection deformation joint 1, and the pre-buried aluminum pipe in injected hole 3 are made on concrete；
C, elastomeric layer 5 is formed in 1 top filling elastic material of deformation joint, and presses the elastic material having had been filled with
Layer 5；
D, the embedded elastic tube 6 in deformation joint 1, and press the elastomeric layer 5 having had been filled with；
E, 1 outermost of deformation joint is carried out using the epoxy mortar faulting of slab ends 7 for preventing elastic tube 6 from dropping and providing back-pressure effect
Joint seal leaves gap between epoxy mortar faulting of slab ends 7 and concrete, alternatively, being provided with the sealing being made of elastic material in gap
Material layer 8, e are the height of epoxy mortar faulting of slab ends 7, and b is the width of epoxy mortar faulting of slab ends 7；
F, by pre-buried aluminum pipe, the grouting material formation injection material bed of material 4 is injected to the inside of deformation joint 1, and is clamped one by one
Aluminum pipe finally covers injected hole 3 with epoxy mortar.
Above-described embodiment is the preferred embodiment of the utility model, and the utility model can also have other embodiments.Ability
The technical staff in domain can also make equivalent variations or replacement on the premise of without prejudice to the utility model spirit, these equivalent changes
Type or replacement are all contained in the scope set by the application claim.
Claims (6)
1. a kind of elasticity grouting back-pressure sealing structure at expansion joint, including being located between two concrete interfaces and containing underground water
(2) deformation joint (1), which is characterized in that the deformation joint (1) is internal to be useful for closure underground water from interior set gradually outward
(2) the injection material bed of material (4), elastomeric layer (5), elastic tube (6), epoxy mortar faulting of slab ends (7).
2. the elasticity grouting back-pressure sealing structure at expansion joint according to claim 1, which is characterized in that the concrete surface
It is provided with and connects the internal injected hole (3) of deformation joint (1), it is pre-buried at injected hole (3) to be provided with aluminum pipe, the injection material bed of material (4) warp
After the completion of aluminum pipe slip casting, the inlet closure of aluminum pipe is provided with epoxy mortar.
3. the elasticity grouting back-pressure sealing structure at expansion joint according to claim 2, which is characterized in that the injected hole (3)
Angle between concrete surface is β, and β is 30 °~70 °, and the distance of injected hole (3) and deformation joint (1) center is a, a
For 50mm~200mm.
4. the elasticity grouting back-pressure sealing structure at expansion joint according to claim 1, which is characterized in that the elastomeric layer
(5) packed height is c, and c is 10mm~50mm, and elastomeric layer (5) is embedded in deformation joint (1), and depth is 50mm~100mm.
5. the elasticity grouting back-pressure sealing structure at expansion joint according to claim 1, which is characterized in that the epoxy mortar is wrong
Platform (7) is highly flushed with concrete surface, and the width of epoxy mortar faulting of slab ends (7) is 5mm~15mm；The epoxy mortar faulting of slab ends
(7) 5mm~15mm is reserved between deformation joint (1) for preventing structure from expanding with heat and contract with cold and the gap of crimp.
6. the elasticity grouting back-pressure sealing structure at expansion joint according to claim 5, which is characterized in that the epoxy mortar is wrong
Platform (7) is made of several in the epoxy mortar platform (71) being vertically spaced apart, the vertical interval of adjacent two epoxy mortars platform (71)
For f, f is 50mm~200mm, epoxy mortar platform (71) homonymy distribution or along left and right sides cross-distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720954341.1U CN207437099U (en) | 2017-08-01 | 2017-08-01 | A kind of elasticity grouting back-pressure sealing structure at expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720954341.1U CN207437099U (en) | 2017-08-01 | 2017-08-01 | A kind of elasticity grouting back-pressure sealing structure at expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207437099U true CN207437099U (en) | 2018-06-01 |
Family
ID=62301799
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720954341.1U Expired - Fee Related CN207437099U (en) | 2017-08-01 | 2017-08-01 | A kind of elasticity grouting back-pressure sealing structure at expansion joint |
Country Status (1)
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|---|---|
| CN (1) | CN207437099U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114592887A (en) * | 2022-03-14 | 2022-06-07 | 中国水利水电科学研究院 | Water delivery tunnel lining expansion joint process design method |
| CN116084274A (en) * | 2023-01-05 | 2023-05-09 | 湖南省高速公路集团有限公司 | Bridge guardrail heightening structure and construction transformation method |
-
2017
- 2017-08-01 CN CN201720954341.1U patent/CN207437099U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114592887A (en) * | 2022-03-14 | 2022-06-07 | 中国水利水电科学研究院 | Water delivery tunnel lining expansion joint process design method |
| CN116084274A (en) * | 2023-01-05 | 2023-05-09 | 湖南省高速公路集团有限公司 | Bridge guardrail heightening structure and construction transformation method |
| CN116084274B (en) * | 2023-01-05 | 2023-12-05 | 湖南省高速公路集团有限公司 | Bridge guardrail heightening structure and construction transformation method |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180601 Termination date: 20200801 |
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| CF01 | Termination of patent right due to non-payment of annual fee |