CN112127917A - Gasket device for fixing pre-paved cold self-adhesive waterproof roll and construction method - Google Patents
Gasket device for fixing pre-paved cold self-adhesive waterproof roll and construction method Download PDFInfo
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- CN112127917A CN112127917A CN202010976594.5A CN202010976594A CN112127917A CN 112127917 A CN112127917 A CN 112127917A CN 202010976594 A CN202010976594 A CN 202010976594A CN 112127917 A CN112127917 A CN 112127917A
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- gasket
- coiled material
- construction
- waterproof layer
- lining
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- 238000010276 construction Methods 0.000 title claims abstract description 56
- 239000000853 adhesive Substances 0.000 title claims abstract description 20
- 238000005096 rolling process Methods 0.000 title description 2
- 239000000463 material Substances 0.000 claims abstract description 63
- 239000002390 adhesive tape Substances 0.000 claims abstract description 22
- 239000004567 concrete Substances 0.000 claims abstract description 22
- 239000004746 geotextile Substances 0.000 claims abstract description 20
- 239000004568 cement Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000004744 fabric Substances 0.000 claims abstract description 12
- 230000001681 protective effect Effects 0.000 claims abstract description 11
- 239000011378 shotcrete Substances 0.000 claims abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 40
- 229910052742 iron Inorganic materials 0.000 claims description 20
- 238000009415 formwork Methods 0.000 claims description 11
- 239000012528 membrane Substances 0.000 claims description 7
- 238000004078 waterproofing Methods 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 239000012943 hotmelt Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 description 6
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000003892 spreading Methods 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
- E21D11/383—Waterproofing; Heat insulating; Soundproofing; Electric insulating by applying waterproof flexible sheets; Means for fixing the sheets to the tunnel or cavity wall
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a gasket device for fixing a pre-laid cold self-adhesive waterproof coiled material and a construction method, wherein the gasket device comprises primary lining sprayed concrete, a geotextile buffer layer, a coiled material waterproof layer and secondary lining mould concrete which are sequentially arranged from outside to inside of a tunnel section, the geotextile buffer layer of a vertical surface is fixed on the lining sprayed concrete through a cement nail, a connecting gasket is arranged between the geotextile buffer layer and the cement nail in a lining mode, the connecting gasket comprises a base material, a double-faced adhesive tape and a protective film, the double-faced adhesive tape is prefabricated on the base material, the protective film is positioned on one side, far away from the base material, of the double-faced adhesive tape. Will connect during the construction gasket direct be used for fixed geotechnological cloth buffer layer, during the coiled material waterproof layer construction with the double faced adhesive tape protection film tear can, replace original hot melt method construction, both improved construction speed and convenience and guaranteed connection quality and reduced the potential safety hazard that the hot melt construction brought, construction steps is simple and convenient, the connection efficiency height and fixed strength are good.
Description
Technical Field
The invention belongs to the field of tunnel building construction, and particularly relates to a gasket device for fixing a pre-paved cold self-adhesive waterproof coiled material and a construction method.
Background
With the development of infrastructure in China and the improvement of the trip level of people, the requirements of people on the safety and convenience of rail transit are higher and higher, the urban rail transit develops rapidly, and when a tunnel is subjected to waterproof construction, a coiled material waterproof layer is a quality accident easily-caused point.
The most common construction method of the tunnel coiled material waterproof layer is to fix the tunnel coiled material waterproof layer by adopting a plastic gasket during the construction of the geotextile buffer layer, and connect the tunnel coiled material waterproof layer with the gasket by adopting a hot melting method during the construction of the pre-paved self-adhesive waterproof coiled material. 1, when the existing pre-laid cold self-adhesive waterproof coiled material is fixed with the existing hot-melt gasket, the hot-melt machine is influenced by surface glue and sand grains of the coiled material of the working surface, and the fixing effect is poor; 2. present cold self-adhesion waterproofing membrane of formula of spreading in advance compares dead weight great with the EVA waterproof board, based on reason 1, fixed effect is not good easily leads to tunnel to rise position waterproofing membrane above the arch wire and collapses, plays the package, influences waterproof construction quality. Therefore, the construction quality of the hot melting method is difficult to guarantee, the construction speed is slow, and the process is complex.
Disclosure of Invention
The invention provides a gasket device for fixing a pre-laid cold self-adhesive waterproof coiled material and a construction method, which are used for solving the most common construction method of a tunnel coiled material waterproof layer that a plastic gasket is adopted for fixing during the construction of a geotextile buffer layer and a hot melting method is adopted for connecting the gasket during the construction of the pre-laid self-adhesive waterproof coiled material. The construction quality of the hot melting method is difficult to guarantee, the construction speed is slow, and the process is complex.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a fixed cold self-adhesion waterproofing membrane's of formula of spreading gasket device in advance, includes that the tunnel section is sprayed concrete, geotechnological cloth buffer layer, coiled material waterproof layer, two lining moulds by outer first lining in proper order and is built the concrete, and the geotechnological cloth buffer layer and the empty method of spreading of coiled material waterproof layer of bottom surface are laid, and the geotechnological cloth buffer layer of facade passes through the cement nail to be fixed on inside lining sprayed concrete, and it has the connection gasket to fill up between geotechnological cloth buffer layer and the cement nail, the connection gasket includes parent metal, prefabricated double faced adhesive tape and the protection film on the parent metal, and the protection film is located one side that the parent metal was kept away from to the double faced adhesive tape, and the parent.
Through adopting above-mentioned technical scheme, will connect the gasket during the construction and directly be used for fixed geotechnological cloth buffer layer, during the construction of coiled material waterproof layer tear the double faced adhesive tape protection film can, replace original hot melt method construction, both improved construction speed and convenience and guaranteed connection quality and reduced the potential safety hazard that the hot melt construction brought, construction steps is simple and convenient, and connection efficiency is high and fixed strength is good.
Preferably, an iron gasket is padded between the geotextile buffer layer and the cement nail, and the area of the iron gasket is smaller than that of the connecting gasket.
Through adopting above-mentioned technical scheme, the geotechnological cloth is avoided on the one hand to break away from the cement nail to the iron gasket, and on the other hand supports connection pad piece simple and convenient during the construction.
Preferably, the iron gasket is circular, and the connecting gasket is circular.
By adopting the technical scheme, the materials are easy to obtain, and the preparation is convenient.
A construction method of a gasket device for fixing a pre-laid cold self-adhesive waterproof coiled material comprises the following steps,
step a, constructing primary lining concrete of the tunnel;
b, arranging connecting gaskets and iron gaskets, and fixing the geotextile buffer layer on the primary lining concrete through cement nails;
c, tearing off the protective film, and bonding the waterproof layer of the coiled material on the connecting gasket;
d, binding reinforcing steel bars of the second lining formwork building concrete, and pouring the second lining formwork building concrete;
step e, second lining formwork building concrete form removal maintenance;
and f, repeating the steps b-e until the tunnel lining construction is finished.
Preferably, in the step c, before the waterproof layer of the coiled material is adhered to the connecting gasket, the adhering surface of the waterproof layer of the coiled material is cleaned, and the surface is clean and has no open water.
By adopting the technical scheme, the construction effect of the waterproof layer of the coiled material is ensured to be good.
Preferably, in the step c, after the waterproof layer of the coil is adhered to the connecting gasket, the waterproof layer of the coil is compacted by a press roller.
Through adopting above-mentioned technical scheme, carry out the compaction, increase joint strength and make things convenient for follow-up construction.
Preferably, in the step c, the waterproof roll material of the roll waterproof layer is lapped and laid, the long edge is lapped by the self-adhesive edge, and the short edge is lapped by the matched adhesive tape.
Through adopting above-mentioned technical scheme, the lapping of coiled material waterproof layer is laid, and water-proof effects is good.
Preferably, in the step c, before the waterproof layer of the coiled material is bonded on the connecting gasket, the parts of the double-sided adhesive tape corresponding to the iron gasket are removed.
Through adopting above-mentioned technical scheme, can avoid the iron gasket to form between connecting shim and the coiled material waterproof layer and separate the space, joint strength is better.
The invention has the beneficial effects that: will connect during the construction gasket direct be used for fixed geotechnological cloth buffer layer, during the coiled material waterproof layer construction with the double faced adhesive tape protection film tear can, replace original hot melt method construction, both improved construction speed and convenience and guaranteed connection quality and reduced the potential safety hazard that the hot melt construction brought, construction steps is simple and convenient, connection efficiency is high and fixed intensity is good
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention; the primary objects and other advantages of the invention may be realized and attained by the instrumentalities particularly pointed out in the specification.
Drawings
FIG. 1 is a schematic structural diagram of a tunnel cross-section of an embodiment of the present invention;
FIG. 2 is an enlarged view of the inner portion of FIG. 1;
FIG. 3 is an installed side view of the connection pad;
FIG. 4 is an installed elevation view of the connection pad;
FIG. 5 is a schematic view of a connection pad;
fig. 6 is a schematic view of the overlapping of the waterproof layer of the roll.
Reference numerals: 1. primary lining spraying concrete; 2. a geotextile buffer layer; 3. a waterproof layer of coiled material; 4. secondly, building concrete with a lining; 5. connecting a gasket; 51. a base material; 52. double-sided adhesive tape; 53. a protective film; 6. an iron shim; 7. a cement nail; 8. and (6) overlapping.
Detailed Description
The technical solutions of the present invention are described in detail below by examples, and the following examples are only exemplary and can be used only for explaining and illustrating the technical solutions of the present invention, but not construed as limiting the technical solutions of the present invention.
Referring to fig. 1, a spacer device for fixing a pre-laid cold self-adhesive waterproof roll comprises a primary lining sprayed concrete 1, a geotextile buffer layer 2, a roll waterproof layer 3 and a secondary lining molded concrete 4, wherein the primary lining sprayed concrete 1, the geotextile buffer layer 2, the roll waterproof layer 3 and the secondary lining molded concrete 4 are sequentially arranged from outside to inside on the section of a tunnel, the geotextile buffer layer 2 and the roll waterproof layer 3 on the bottom surface are laid by a free-lay method, referring to fig. 2 and 3, the geotextile buffer layer 2 on the vertical surface is fixed on the lining sprayed concrete through a cement nail 7, a connecting spacer 5 is arranged between the geotextile buffer layer 2 and the cement nail 7, referring to fig. 4 and 5, the connecting spacer 5 comprises a base material 51, a double-faced adhesive tape 52 prefabricated on the base material 51 and a protective film 53, the protective film 53 is positioned on one side of the double-faced adhesive tape 52 far from the base material 51, the, the waterproof layer 3 of the roll material is bonded to the connection pad 5 by the double-sided adhesive tape 52.
Will connect gasket 5 during the construction directly to be used for fixed geotechnological cloth buffer layer 2, during the construction of coiled material waterproof layer 3 with double faced adhesive tape 52 protection film 53 tear can, replace original hot melt method construction, both improved construction speed and convenience and guaranteed connection quality and reduced the potential safety hazard that the hot melt construction brought, construction steps is simple and convenient, the connection efficiency height and fixed strength are good.
Still having filled up iron gasket 6 between geotechnological cloth buffer layer 2 and the cement nail 7, the area of iron gasket 6 is less than connecting pad 5, and iron gasket 6 avoids geotechnological cloth to break away from cement nail 7 on the one hand, and on the other hand supports connecting pad 5, and is simple and convenient during the construction. The iron gasket 6 is round, and the connecting gasket 5 is round, so that the materials are easily obtained, and the manufacturing is convenient.
The construction method comprises the following steps of,
step a, constructing primary lining concrete of the tunnel;
b, arranging a connecting gasket 5 and an iron gasket 6, and fixing the geotextile buffer layer 2 on the primary lining concrete through a cement nail 7;
c, tearing off the protective film 53, and bonding the waterproof layer 3 of the coiled material on the connecting gasket 5;
d, binding reinforcing steel bars of the second lining formwork building concrete 4, and pouring the second lining formwork building concrete 4;
e, removing the formwork of the second lining formwork concrete 4 for maintenance;
and f, repeating the steps b-e until the tunnel lining construction is finished.
In addition, in the step c, before the coiled material waterproof layer 3 is bonded on the connecting gasket 5, the bonding surface of the coiled material waterproof layer 3 is cleaned, the surface is clean and has no open water, and the construction effect of the coiled material waterproof layer 3 is good.
In the step c, after the coiled material waterproof layer 3 is bonded on the connecting gasket 5, the coiled material waterproof layer 3 is compacted by a compression roller, so that the connecting strength is increased, and the subsequent construction is facilitated.
As shown in fig. 6, in step c, the waterproof roll material lap joint 8 of the roll waterproof layer 3 is laid, the long side adopts the self-adhesive side lap joint 8, the short side adopts the matched adhesive tape lap joint 8, the roll waterproof layer 3 lap joint 8 is laid, and the waterproof effect is good.
In the step c, before the coiled material waterproof layer 3 is bonded on the connecting gasket 5, the parts corresponding to the double-faced adhesive tape 52 and the iron gasket 6 are removed, so that the iron gasket 6 can be prevented from forming a separation gap between the connecting gasket 5 and the coiled material waterproof layer 3, and the connecting strength is better.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that may be made by those skilled in the art within the technical scope of the present invention will be covered by the scope of the present invention.
Claims (8)
1. The utility model provides a gasket device of cold self-adhesion waterproofing membrane of fixed pre-spread formula which characterized in that: comprises primary lining sprayed concrete (1), a geotextile buffer layer (2), a coiled material waterproof layer (3) and secondary lining molded concrete (4) which are sequentially arranged from outside to inside of a tunnel section, wherein the geotextile buffer layer (2) and the coiled material waterproof layer (3) on the bottom surface are laid by a dry-laying method, the geotextile buffer layer (2) on the vertical surface is fixed on the lining sprayed concrete through a cement nail (7), a connecting gasket (5) is padded between the geotextile buffer layer (2) and the cement nail (7), the connecting gasket (5) comprises a base material (51), a double-sided adhesive tape (52) prefabricated on the base material (51) and a protective film (53), wherein the protective film (53) is positioned on one side of the double-sided adhesive tape (52) far away from the base material (51), the base material (51) is arranged close to the geotextile buffer layer (2), the protective film (53) is arranged close to the coiled material waterproof layer (3), the coiled material waterproof layer (3) is bonded on the connecting gasket (5) through a double-sided adhesive tape (52).
2. A gasket device for fixing a pre-spread cold self-adhesive waterproofing membrane according to claim 1, characterized in that: still cushioned iron gasket (6) between geotechnological cloth buffer layer (2) and cement nail (7), the area of iron gasket (6) is less than connecting pad (5).
3. A gasket device for fixing a pre-spread cold self-adhesive waterproofing membrane according to claim 2, characterized in that: the iron gasket (6) is circular, and the connecting gasket (5) is circular.
4. A method of constructing a spacer device for fixing pre-laid cold self-adhesive waterproofing membranes according to claims 1 to 3, characterized in that: comprises the following steps of (a) carrying out,
step a, constructing primary lining concrete of the tunnel;
b, arranging a connecting gasket (5) and an iron gasket (6), and fixing the geotextile buffer layer (2) on the primary lining concrete through a cement nail (7);
c, tearing off the protective film (53), and bonding the waterproof layer (3) of the coiled material on the connecting gasket (5);
d, binding steel bars of the second lining formwork concrete (4), and pouring the second lining formwork concrete (4);
e, removing the formwork and maintaining the second lining formwork concrete (4);
and f, repeating the steps b-e until the tunnel lining construction is finished.
5. The construction method of the gasket device for fixing the pre-spread cold self-adhesive waterproof roll according to the claim 4 is characterized in that: and in the step c, before the coiled material waterproof layer (3) is bonded on the connecting gasket (5), the bonding surface of the coiled material waterproof layer (3) is cleaned, and the surface is clean and has no clear water.
6. The construction method of the gasket device for fixing the pre-spread cold self-adhesive waterproof roll according to the claim 5 is characterized in that: in the step c, after the coiled material waterproof layer (3) is bonded on the connecting gasket (5), the coiled material waterproof layer (3) is compacted by a compression roller.
7. The construction method of the gasket device for fixing the pre-spread cold self-adhesive waterproof roll according to the claim 6 is characterized in that: and in the step c, the waterproof roll material lap joint (8) of the roll waterproof layer (3) is laid, the long side adopts the self-adhesive side lap joint (8), and the short side adopts the matched adhesive tape lap joint (8).
8. The construction method of the gasket device for fixing the pre-spread cold self-adhesive waterproof roll according to claim 7, characterized in that: and c, removing the parts of the double-sided adhesive tape (52) corresponding to the iron gasket (6) before the coiled material waterproof layer (3) is bonded on the connecting gasket (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010976594.5A CN112127917A (en) | 2020-09-16 | 2020-09-16 | Gasket device for fixing pre-paved cold self-adhesive waterproof roll and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010976594.5A CN112127917A (en) | 2020-09-16 | 2020-09-16 | Gasket device for fixing pre-paved cold self-adhesive waterproof roll and construction method |
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| CN112127917A true CN112127917A (en) | 2020-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010976594.5A Pending CN112127917A (en) | 2020-09-16 | 2020-09-16 | Gasket device for fixing pre-paved cold self-adhesive waterproof roll and construction method |
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| CN (1) | CN112127917A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130046645A (en) * | 2011-10-28 | 2013-05-08 | 이대우 | A tunnel waterproofing construction method |
| CN107435549A (en) * | 2017-08-14 | 2017-12-05 | 合肥卓立雅工程材料科技有限公司 | A kind of tunnel applications geomembrane laying method |
| CN107575245A (en) * | 2017-08-21 | 2018-01-12 | 中铁隧道集团二处有限公司 | A kind of laying method of anchor bar of waterproof plate in tunnels |
| CN206942791U (en) * | 2017-07-10 | 2018-01-30 | 衡水新陆交通器材有限公司 | Tunnel waterproofing construction |
| CN207920641U (en) * | 2018-06-07 | 2018-09-28 | 建国伟业防水科技望都有限公司 | Novel tunnel water-proof structure |
| CN209724368U (en) * | 2018-12-11 | 2019-12-03 | 中国铁路设计集团有限公司 | A kind of improved metro built by mining method water proof structure |
| WO2020142571A1 (en) * | 2019-01-03 | 2020-07-09 | Gcp Applied Technologies Inc. | Tunnel waterproofing composition and system |
-
2020
- 2020-09-16 CN CN202010976594.5A patent/CN112127917A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130046645A (en) * | 2011-10-28 | 2013-05-08 | 이대우 | A tunnel waterproofing construction method |
| CN206942791U (en) * | 2017-07-10 | 2018-01-30 | 衡水新陆交通器材有限公司 | Tunnel waterproofing construction |
| CN107435549A (en) * | 2017-08-14 | 2017-12-05 | 合肥卓立雅工程材料科技有限公司 | A kind of tunnel applications geomembrane laying method |
| CN107575245A (en) * | 2017-08-21 | 2018-01-12 | 中铁隧道集团二处有限公司 | A kind of laying method of anchor bar of waterproof plate in tunnels |
| CN207920641U (en) * | 2018-06-07 | 2018-09-28 | 建国伟业防水科技望都有限公司 | Novel tunnel water-proof structure |
| CN209724368U (en) * | 2018-12-11 | 2019-12-03 | 中国铁路设计集团有限公司 | A kind of improved metro built by mining method water proof structure |
| WO2020142571A1 (en) * | 2019-01-03 | 2020-07-09 | Gcp Applied Technologies Inc. | Tunnel waterproofing composition and system |
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Application publication date: 20201225 |
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