CN104476765B - A tunnel waterproof board, a waterproof board welding method and a hot-melt welding machine - Google Patents
A tunnel waterproof board, a waterproof board welding method and a hot-melt welding machine Download PDFInfo
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- CN104476765B CN104476765B CN201410567372.2A CN201410567372A CN104476765B CN 104476765 B CN104476765 B CN 104476765B CN 201410567372 A CN201410567372 A CN 201410567372A CN 104476765 B CN104476765 B CN 104476765B
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Abstract
The invention discloses a tunnel waterproof board, a waterproof board welding method and a hot-melt welding machine. In waterproof board interannular overlap joint zones, the front surfaces and/or the back surfaces of the waterproof boards are provided with melt seal welding belts. The distribution direction of the melt seal welding belts is the same as the direction of welding seams of the interannular overlap joint zones. The melting point of a material of the melt seal welding belts is lower than that of a material of the waterproof boards. During welding, a group of extrusion idler wheels are added into the welding machine; at the same time of subjecting the waterproof boards to hot-melt welding or after the hot-melt welding, a heating mechanism of the welding machine heats the melt seal welding belts to melt the melt seal welding belts into a plastic flow state on the waterproof board; the added extrusion idler wheels of the welding machine extrude the melt seal welding belts in the plastic flow state to spread the melt seal welding belts in the plastic flow state to welding seam zones so as to achieve leak repairing and reinforcement of the welding seams and to form continuous and uniform welding seams on the original positions of the melt seal welding belts. Defects of a climb welding technology in tunnel construction are made up, and waterproof construction techniques, equipment levels and waterproof construction quality are improved.
Description
Technical field
The present invention relates to a kind of tunnel such as railway, highway, water conservancy splash guard, the splash guard can effectively realize that welding is close
Envelope, ensures welding quality.The invention further relates to welding method between this splash guard and the heat employed in this welding method
Fusion welding machine.
Background technology
Railway tunnel, vcehicular tunnel, water conservancy anchor bar of waterproof plate in tunnels interannular mostly using hot melt creep portable welding machine welding two
Adjacent splash guard, by splash guard according to function zoning, the region that adjacent two width splash guard is overlapped is referred to as interannular overlap
Or area is overlapped, the width for overlapping area is generally 10-15 centimetres.In current welding procedure, overlapping district center forms twice and puts down
Capable heat smelting crimp connection weld seam, the weld width is generally 1.5-2 centimetres.
Above-mentioned sweat soldering main technique principle is：Using heating plate or hot blast, area's inner surface material is overlapped to splash guard
Molten condition is heated to, is rolled through mechanical rollers, the splash guard crimping of overlapping is made up.Welder is climbed in positive plane-welding
Field is as reliable such as application effect in refuse landfill, pond waterproof layer, water works, but it is anti-to be applied to anchor bar of waterproof plate in tunnels
During to welding, because tunnel contour is arcuate structure, to keep splash guard closely connected, it is necessary to reserved sagging with Tunnel layer
Degree, splash guard so as to be in relaxed state, to anchor bar of waterproof plate in tunnels heating welding process in, because collection location is inaccurate, tunnel
Also having the factors such as water, dust, Mechanical Moving traveling speed in road influences, the uniformity that influence weld zone plate surface is heated, it is difficult to
The uniformity of melt temperature is synchronously reached, over-heating can then cause splash guard excessive melting, destruction material body intensity, it is difficult to
Be effectively formed it is firm continuously make weld zone up, welding effect is limited by execution conditions, is the main of current tunnel leak
One of disease source.
The content of the invention
The technical problems to be solved by the invention are to provide one kind and can effectively realize welded seal, ensure the anti-of welding quality
Water plate；Additionally, the present invention also provides welding method between above-mentioned splash guard and the sweat soldering employed in this welding method
Machine.
In order to solve the above technical problems, the present invention has made further improvement to traditional splash guard：Taken for interannular both sides
Area is met, adjacent two width splash guard is by being welded together in interannular overlap, it is characterised in that：In the interannular of splash guard
Overlap, the front of splash guard and/or reverse side are provided with fusion sealing fusion sealing welding band, the fusion sealing welding band
Distribution arrangement is identical with the bead direction of interannular overlap, and the fusing point of the fusion sealing welding carrying material is less than splash guard material
Fusing point.The front of splash guard and/or reverse side are provided with fusion sealing welding band and represent：The front of splash guard, reverse side or front
Reverse side is provided with fusion sealing welding band.
The present invention makes full use of and climbs soldering equipment and cardinal principle at present, still can be creeped welding using hot melt, according to current
The process of railway tunnel construction, using the gap for climbing Welding welding fusion weld seam adjacent region at present, in splash guard interannular
The default fusion sealing welding band of overlap, the material fusing point of the fusion sealing welding band is less than splash guard mother metal fusing point, in waterproof
Positioning molding synchronous with splash guard in board manufacturing process.When heating welding is carried out to splash guard interannular overlap, merge close
Fusing point of the soldering and sealing tape splicing due to fusing point less than mother metal, can melt to liquid-plastic state, and weld zone is incorporated through climbing the extruding of welding machine roller
Band, the weld metal zone for forcing it to diffuse to both sides, to strengthen the mending-leakage reinforcement to original weld seam, forms the sealing of continuous uniform
Weld seam, while closing the fusion bad leakage point for leaving of sealing welding welding.
Merge the fusing point of the fusing point less than splash guard material of sealing welding band, it is ensured that during weld heating, merge sealing welding
Band fully thawing, usually, the fusing point of the fusion sealing welding carrying material is lower than the fusing point of splash guard material 50-100 DEG C.
Bottom line realizes that technical purpose of the invention is only needed：The fusion sealing welding band is arranged on splash guard body one
The interannular overlap of side, the fusion sealing welding band is arranged on and is provided only with one on the one side of splash guard body, i.e. splash guard and melts
Close sealing welding band.
If being welded with twice weld seam between splash guard, the fusion sealing welding band is between twice weld seam, and this is optimization
A scheme.The scheme of optimization is that fusion sealing welding band is in the middle of twice weld seam.
Distance of the fusion sealing welding band away from splash guard edge is more than weld width, and the purpose of this scheme is to avoid weldering
Seam exceeds interannular overlap.
The fusion sealing welding band is made up of some tapes, some herein to refer to one or more.It is preferred that merging close
Soldering and sealing tape splicing is made up of a tape, and general interannular overlap joint sector width is 15 centimetres, and the tape is in the middle of interannular overlap, band
The width of bar is 15-20mm, and thickness is 0.3-0.6mm, and during welding, weld seam is located at the both sides of this tape.
In order to form air pressure method sense channel, isolating bar, the isolation are set in the fusion sealing welding band
Fusing point of the fusing point of strip material higher than splash guard material.The heating-up temperature of bonding machine is welded less than the fusing point of fusion sealing welding band
When the heating arrangements for picking are heated to fusion sealing welding region, isolating bar maintains the original state, and is formed around isolating bar
Gap, this gap is air pressure method sense channel.The material of isolating bar can be poromeric material, so can be used for making up
The problems such as small gap or unclear and coherent part are formed around above-mentioned isolating bar, it is ensured that the entirety of air pressure method sense channel is unimpeded.
Welding method between above-mentioned anchor bar of waterproof plate in tunnels, comprises the following steps：
(1) splash guard is installed, the interannular overlap of adjacent two width splash guard is superimposed；
(2) sweat soldering is carried out using bonding machine, the distribution arrangement that bonding machine merges sealing welding band along splash guard enters
Row sweat soldering, the weld seam of welding is located at the both sides of fusion sealing welding band；
(3) while bonding machine is to splash guard sweat soldering or after sweat soldering, the heating arrangements of bonding machine are to fusion
Sealing welding band is heated, and makes fusion sealing welding band that liquid-plastic state is melted on splash guard；
(4) welded seam area of the roller extruding splash guard of bonding machine forms weld seam；
(5) roller of bonding machine extrudes the fusion sealing welding region of liquid-plastic state, it is diffused to the weldering being bonded
Seam region, mending-leakage reinforcement is carried out to weld seam, and the seal-weld of continuous uniform is formed at original fusion sealing welding band；It is close when merging
Be provided with soldering and sealing tape splicing fusing point higher than splash guard material melting point isolating bar when, the heating-up temperature of bonding machine is sealed less than fusion
The fusing point of welded bands, when the heating arrangements of bonding machine are heated to fusion sealing welding region, isolating bar maintains the original state, every
Gap is formed around bar.
Additionally, sealing welding carrying material is merged on the splash guard is arranged to different colours with splash guard material, to waterproof
When fusion sealing welding band on plate is heated, fusion sealing welding band melts to liquid-plastic state, extruding stream on splash guard
The fusion sealing welding band of modeling state, make it diffuse to welded seam area, if weld seam is leaky, different colours liquid-plastic state melts
Conjunction sealing welding carrying material is diffused in weld seam leak, and after cooling, the fusion sealing welding carrying material of different colours shows on weld seam
To leak reinforcement while showing leak position.
Tunnel water proofing plate weld sweating welder, including extruding forms first squeezing roller and heater of weld seam
Structure, it is characterised in that also including the second squeezing roller for merging sealing welding band, second squeezing roller and first is squeezed
After pressing roller is arranged side by side, or the second squeezing roller is located at the first squeezing roller, the air outlet of the heating arrangements covers close to merging
Soldering and sealing tape splicing region.
The present invention sends out splash guard of the present invention and its correlation technique according to the constructing tunnel produced problem such as railway, JP, more
Benefit climbs defect of the welding technology in constructing tunnel, eliminates the main leak defect of tunnel waterproofing layer construction, improves waterproof construction skill
Art and equipment, improve waterproof construction quality.
The advantage of splash guard of the present invention and welding method：
1st, during anchor bar of waterproof plate in tunnels climbs weldering, the seal-weld of reinforcing melting connection together is formed, is fundamentally realized
The welded seal of two width splash guards, it is ensured that welding quality；Meanwhile, fusion band realize it is secondary make up, to normal twice weld
Seam carries out effective supplement of strengthening and seals, and so as to improve the reliability of the welding water blockoff of weld seam, also omit as used air pressure
The step of stopping leakage in the roof.
2nd, do not change the main technique technology of current tunnel water proofing plate weld, only carry out local changing to climbing welding machine extrusion structure
Enter, be adapted in the wider constructing tunnel technology field of application at present.
3rd, do not change material, the manufacturing process equipment of current splash guard, save existing social resources.
4th, can be applied in the welding in various splash guard rings overlapping area, strong applicability.
5th, the security function to anchor bar of waterproof plate in tunnels ring overlapping area's sweat soldering airtight quality is excellent, to ensureing engineering matter
Amount, extension engineering service life, economic worth and social effect are more great.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is splash guard schematic diagram of the present invention.
Fig. 2 is splash guard of the present invention in welding schematic diagram.
Fig. 3 is splash guard of the present invention in welding sectional view.
Fig. 4 is setting isolating bar schematic diagram in fusion sealing welding band.
The position view of isolating bar after Fig. 5 welding.
Fig. 6 is the squeezing roller position view of sweating welder.
Specific embodiment
(1) anchor bar of waterproof plate in tunnels is installed, anchor bar of waterproof plate in tunnels is as shown in figure 1, its both sides is defined as interannular overlap according to function
2, the interannular overlap 2 of adjacent two width splash guard 1 is superimposed together.In the interannular overlap 2 of splash guard 1, the front of splash guard 1
And/or reverse side is provided with fusion sealing welding band 3, that is, merging sealing welding band 3 can be arranged on either side interannular overlap 2,
Or be arranged on both sides interannulars overlap 2 simultaneously, fusion sealing welding with 3 any surfaces that can be arranged on interannular overlap 2 (i.e. just
Face or reverse side), or the positive and negative for being arranged on interannular overlap 2 simultaneously.
, with 3 selections and the obstructed red of the color of splash guard 1, fusion sealing welding is with 3 distribution arrangement for fusion sealing welding
Weld seam 4 (as shown in Figure 2) direction with interannular overlap 2 is identical, and fusion sealing welding band 3 can be by one or more tape structure
Into.Fusion sealing welding can be the materials such as PE, EVA or PE+EVA with the mother metal of splash guard 1 with 3, but fusion sealing welding is with 3
The fusing point of material such as selects fusing point low 50-100 DEG C less than the fusing point of the material of splash guard 1.
As shown in figure 4, being provided with isolating bar 5 in fusion sealing welding band 3, the fusing point of the material of the isolating bar 5 is higher than
The fusing point of the material of splash guard 1, the selection of bonding machine welding temperature is more than the body melting temperature of splash guard 1 and less than the material of isolating bar 6
When melting temperature is heated to the body of splash guard 1, isolating bar 5 will not produce change, and change here refers to melting,
Even melt to liquid-plastic state.When the heating arrangements of bonding machine are heated to 3 regions of fusion sealing welding band, isolating bar 5 is protected
Original state is held, gap is formed around isolating bar 5, this gap is used as air pressure method sense channel.
Isolating bar 5 can select the high temperature resistant poromeric material such as high temperature film band, glass fabric, and high temperature resistant here is simultaneously
Temperature higher is not limited, as long as the fusing point of high temperature resistant poromeric material here is more than the body melting temperature of splash guard 1.
Certainly, the material of isolating bar 5 can not be poromeric material, and selection poromeric material can be used for making up above-mentioned isolating bar 5 weeks
Enclose the problems such as forming small gap or unclear and coherent part, it is ensured that the entirety of air pressure method sense channel is unimpeded.
The present embodiment, the selection 150mm of interannular overlap 2 of splash guard 1, fusion sealing welding band 3 is an overall tape 5,
It is located at the center of interannular overlap 2, and 3 degree wide of tape is 30mm, and thickness is 0.3mm.The width of isolating bar 5 is 10mm, and thickness is
0.2mm, it is arranged on middle part in fusion sealing welding band 3, and isolating bar bottom is located on splash guard 1, and the top of isolating bar 5 is also
There is the fusion sealing welding band 3 that 0.1mm is thick.
Fusion sealing welding is not limited positioned at the center of interannular overlap 2 with 3 position, can be with amesiality, when inclined
During to side, it is necessary to stop the position of weld seam 4 in interannular overlap 2 in the case of double slit climbs weldering.
(2) double slit is carried out using automatic crawling bonding machine and climbs weldering, automatic crawling bonding machine merges close along splash guard 1
The distribution arrangement of soldering and sealing tape splicing carries out sweat soldering, and as shown in Figure 2,3, the twice weld seam 4 of welding is located at fusion sealing welding band 3
Both sides, close to tape 30mm wide, the width of per pass weld seam 4 is 20mm to twice weld seam 4.
The automatic crawling bonding machine of use needs to be improved, main to improve in heating arrangements and squeezing roller part,
Former automatic crawling bonding machine includes that extruding forms first squeezing roller 6 and heating arrangements of weld seam, as shown in fig. 6, improving
Bonding machine afterwards also includes the second squeezing roller 7 for merging sealing welding band, and second squeezing roller 7 and first is extruded
Side by side, or after the second squeezing roller 7 as shown in Figure 5 is located at the first squeezing roller 6, and air outlet to heating arrangements enters roller 6
Row is improved, and the air outlet of heating arrangements is covered to 3 regions of fusion sealing welding band, such that it is able to the fusion between twice weld seam
Heated in 3 regions of sealing welding band.
(3) while bonding machine is to 1 sweat soldering of splash guard or after sweat soldering, the heating arrangements of bonding machine 1 are to melting
Close sealing welding band 3 to be heated, fusion sealing welding band 3 is melted to liquid-plastic state on splash guard 1.
The present embodiment is selected while sweat soldering, and the heating arrangements of bonding machine are added to fusion sealing welding band 3
Heat, so, when heating welding is carried out to the interannular overlap 2 of splash guard 1, fusion sealing welding band 3 is less than mother metal due to fusing point
Fusing point, liquid-plastic state can be melted to,
(4) welded seam area of roller (i.e. the first squeezing roller 6 in Fig. 6) the extruding splash guard 1 of bonding machine forms weld seam 4.
(5) 3 regions of fusion sealing welding band of the roller extruding liquid-plastic state of bonding machine, make it diffuse to the weldering being bonded
4 regions are stitched, mending-leakage reinforcement is carried out to weld seam 4, the seal-weld of formation continuous uniform is same at original fusion sealing welding is with 3
When, the leakage point that closing failure welding leaves, as shown in Figure 3.
If weld seam 4 is leaky, fusion sealing welding 3 materials of band of red liquid-plastic state are diffused in weld seam leak, cold
But the leak position that the fusion sealing welding of red shows with 3 materials is will appear from after, on weld seam, now red fusion sealing weldering
The material of tape splicing 3 carries out reinforcement to leak.If, without leak, red fusion sealing welding 3 materials of band of liquid-plastic state are two for weld seam 4
The seal-weld of continuous uniform is formed between road weld seam 4.
When the heating arrangements of bonding machine are heated to 3 regions of fusion sealing welding band, isolating bar maintains the original state, such as Fig. 5
It is shown, gap is formed around isolating bar, air pressure method sense channel is formed, it is easy to the later stage to detect weld seam.
Above-described embodiment limits the present invention never in any form, every to be obtained by the way of equivalent or equivalent transformation
Technical scheme all fall within protection scope of the present invention.
Claims (2)
1. welding method between anchor bar of waterproof plate in tunnels, it is characterised in that comprise the following steps：
(1) splash guard is installed, the interannular overlap of adjacent two width splash guard is superimposed；
(2) sweat soldering is carried out using bonding machine, the distribution arrangement that bonding machine merges sealing welding band along splash guard carries out heat
Fusion welding, the weld seam of welding is located at the both sides of fusion sealing welding band；
(3) while bonding machine is to splash guard sweat soldering or after sweat soldering, the heating arrangements of bonding machine are sealed to fusion
Welded bands are heated, and make fusion sealing welding band that liquid-plastic state is melted on splash guard；
(4) welded seam area of the roller extruding splash guard of bonding machine forms weld seam；
(5) roller of bonding machine extrudes the fusion sealing welding region of liquid-plastic state, it is diffused to the weld metal zone being bonded
Domain, mending-leakage reinforcement is carried out to weld seam, and the seal-weld of continuous uniform is formed at original fusion sealing welding band；When fusion sealing weldering
Be provided with tape splicing fusing point higher than splash guard material melting point isolating bar when, the heating-up temperature of bonding machine is less than fusion sealing welding
The fusing point of band, when the heating arrangements of bonding machine are heated to fusion sealing welding region, isolating bar maintains the original state, isolating bar
Surrounding forms gap.
2. welding method between anchor bar of waterproof plate in tunnels according to claim 1, it is characterised in that：Sealing is merged on the splash guard
Welded bands material is arranged to different colours with splash guard material, when being heated to the fusion sealing welding band on splash guard, melts
Close sealing welding band and liquid-plastic state is melted on splash guard, extrude the fusion sealing welding band of liquid-plastic state, diffuse to it
Welded seam area, if weld seam is leaky, the fusion sealing welding carrying material of different colours liquid-plastic state is diffused in weld seam leak,
After cooling, to leak reinforcement while the fusion sealing welding carrying material display leak position of different colours on weld seam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410567372.2A CN104476765B (en) | 2014-10-22 | 2014-10-22 | A tunnel waterproof board, a waterproof board welding method and a hot-melt welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410567372.2A CN104476765B (en) | 2014-10-22 | 2014-10-22 | A tunnel waterproof board, a waterproof board welding method and a hot-melt welding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104476765A CN104476765A (en) | 2015-04-01 |
| CN104476765B true CN104476765B (en) | 2017-05-17 |
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| CN201410567372.2A Active CN104476765B (en) | 2014-10-22 | 2014-10-22 | A tunnel waterproof board, a waterproof board welding method and a hot-melt welding machine |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105235201A (en) * | 2015-10-30 | 2016-01-13 | 安徽五星新型防水建材科技有限公司 | Substrate base connection device used for waterproof cloth production |
| CN107476352A (en) * | 2017-09-07 | 2017-12-15 | 中建五局第三建设有限公司 | A kind of connection method of rubber watertight strip |
| CN111396099B (en) * | 2020-03-30 | 2021-06-11 | 中交第二航务工程局有限公司 | Water seepage prevention construction method for two-lining connecting joint in tunnel |
| CN113123372B (en) * | 2021-04-09 | 2022-07-12 | 中船第九设计研究院工程有限公司 | Vertical HDPE film construction method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1154436A (en) * | 1996-01-12 | 1997-07-16 | 北京市地下铁道建设公司 | Method for making water-proof layer in tunnel |
| CN201214860Y (en) * | 2008-05-06 | 2009-04-01 | 秦雪辰 | High-molecular self-adhering water-proof rolled material |
| CN202937276U (en) * | 2012-12-14 | 2013-05-15 | 中铁二十三局集团有限公司 | Waterproof structure for tunnel |
| CN103089281A (en) * | 2013-01-23 | 2013-05-08 | 湘潭光威机械科技有限公司 | Trolley used for laying tunnel waterproof layer |
| CN203742624U (en) * | 2014-03-26 | 2014-07-30 | 福州市规划设计研究院 | Splicing laying structure of tunnel water proof board |
| CN204283450U (en) * | 2014-10-22 | 2015-04-22 | 邓卫东 | A kind of anchor bar of waterproof plate in tunnels and sweating welder thereof |
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