CN101614129B - Construction method of tunnel waterproof and water drainage system - Google Patents
Construction method of tunnel waterproof and water drainage system Download PDFInfo
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- CN101614129B CN101614129B CN2009101045719A CN200910104571A CN101614129B CN 101614129 B CN101614129 B CN 101614129B CN 2009101045719 A CN2009101045719 A CN 2009101045719A CN 200910104571 A CN200910104571 A CN 200910104571A CN 101614129 B CN101614129 B CN 101614129B
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Abstract
The invention discloses a construction method of a tunnel waterproof and water drainage system, comprising the following steps: (1) preparing raw materials on a drainage layer; (2) injecting the drainage layer; (3) injecting a waterproof layer. The drainage layer and the waterproof layer of the invention all adopt the construction technology of injection. On the basis of water conductivity function, the drainage layer also has the functions of leveling and adapting to structural deformation, the waterproof layer adopts the construction mode of instantaneous film forming by ultraspeed curing and injecting, and the formed film is an integral structure, thus realizing that the integral structure is seamless and waterproof, the injection surface is free of flow, the film surface is smooth without bubbles and the construction produces no volatile organic compounds, simultaneously greatly improving the construction efficiency and reducing the labor intensity of workers.
Description
Technical field
The invention belongs to job practices, specifically, relate to a kind of job practices of tunnel waterproof and water drainage system.
Background technology
In constructing tunnel, waterproof technique is the important step of constructing tunnel.At present, widely used highway tunnel waterproof technique is to hang nonwoven between supporting in the early stage and the secondary lining as drainage blanket and cushion coat, below the nonwoven drainage blanket, splash guard welded together and obtain waterproofing course, its defective is: hanging the nonwoven drainage blanket mostly is manually to hang, splash guard also is by manually being welded into an integral body, efficient is very low, and the labor strength of construction is bigger; The most fatal is, splash guard is broken easily, and the welding quality between splash guard and the splash guard is difficult to guarantee that the percolating water situation appears in weld easily, causes present construction of tunnel percolating water more general that waterproof effect is not very desirable.
Summary of the invention
For solving above technical problem, the object of the present invention is to provide a kind of efficiency of construction height, lead the job practices of the tunnel waterproof and water drainage system of good water-proof effect.
The present invention seeks to realize like this: a kind of job practices of tunnel waterproof and water drainage system may further comprise the steps:
(1) preparation drainage blanket raw material: add the rubber particles of 50～75 parts of particle diameter 1.0～1.5mm, 50～75 parts of particle diameter 100～200 purpose rubber particles, 20～50 parts of mineral wool fibers, 50～80 parts of VAE emulsion mixing and stirring by weight; In the process that stirs, utilize and stir the general mixing speed that adopts 700～1000 rev/mins of retaining machine.
(2) spray drainage blanket: the drainage blanket raw material of getting ready is added spraying machine evenly be injected in the basic unit of tunnel inwall sprayed mortar, up to the pit in the basic unit being filled and led up natural air drying; The substrate surface of sprayed mortar can occur uneven all the time, and some pits are arranged.In the spraying machine course of injection, in the pit in rubber particles, mineral wool fiber, the VAE emulsion compound embedding basic unit, it is filled and led up, realized the function of levelling.Selecting two kinds of rubber particles of thickness for use, is because of the tiny drainage channel of favourable formation between the crude rubber particle, and thin rubber particles makes that the drainage blanket surface is Paint Gloss and smooth.
(3) spray waterproofing course: add isocyanate component and amine compound component respectively in the special-purpose polyureas spraying machine in the different container containings, by mixing jetting on drainage blanket, moment film forming obtain the waterproofing course of one.Isocyanates and amine compound are positioned at separately dress of polyureas spraying machine different vessels, in spray gun, mix ejection again during injection, isocyanates and amine compound mix reaction rapidly, moment this moment is injected in the drainage blanket inner surface, film forms as one, between do not have the slit, seepage can not take place, waterproof effect is very good.Simultaneously since moment film forming obtain waterproofing course, can not be splashed to tunnel bottom and along inwall to dirty, form the situation of tunnel internal contamination and tunnel inwall upper-thin-lower-thick.Because no organic volatile can not cause damage to constructor's health.
The waterproofing course jet thickness is 1.2～1.5mm in the above-mentioned steps (3).The waterproof reliability is poor when obtaining the waterproofing course jet thickness less than 1.2mm through a large amount of experiments; When the waterproofing course jet thickness too high greater than the 1.5mm cost.1.2 the thickness of～1.5mm can reach optimum waterproof effect, cost is more reasonable simultaneously.Adopt ultra fastcuring to spray the form of construction work of moment film forming, realize the integral seamless waterproof, efficiently solve at highway tunnel backwater vertical sidewall, vault face film forming and moist basal plane and paste problem.The polyurea materials of described injection has the ultra fastcuring characteristic, and the physical and mechanical property of tool excellence and construction technology performance: solid content 97%, gel time 11s, surface drying time 2min, hardness 88 Shao A, hot strength 9.69Mpa, elongation at break 958%, tearing strength 60.27kN/m, adhesive power 2.3Mpa, low temperature flexibility (30 ℃ in the 180 degree bendings of 10mm axle) do not ftracture, (0.3Mpa/30min) is waterproof for impermeability.
Sprayed mortar basic unit is injected in tunnel inwall lithosphere inner surface in the above-mentioned steps (2).All be by digging sprayed mortar formation basic unit on the lithosphere basis of digging out in the constructing tunnel.
Beneficial effect: drainage blanket of the present invention and waterproofing course all adopt the construction technology of injection, drainage blanket is on the basis of water guide function, the function that also has the distortion of levelling and commensurate structure, waterproofing course adopts ultra fastcuring to spray the form of construction work of moment film forming, and the film after the moulding is structure as a whole, and has realized the integral seamless waterproof, jet face does not have trickling, the film smooth surface, no bubble, the no organic volatile of constructing.Simultaneously improve efficiency of construction greatly, lowered working strength of workers.
Description of drawings
The tunnel interior wall construction that Fig. 1 obtains for job practices of the present invention
The specific embodiment
Embodiment 1
A kind of job practices of tunnel waterproof and water drainage system may further comprise the steps:
(1) raw material of preparation drainage blanket: add the rubber particles of 50 parts of particle diameter 1.0mm, 50 parts of particle diameter 100 purpose rubber particles, 20 parts of mineral wool fibers, 50 parts of VAE emulsion mixing and stirring by weight;
(2) spray drainage blanket 2: the drainage blanket raw material of getting ready is added spraying machine evenly be injected in the tunnel inwall sprayed mortar basic unit 1 (sprayed mortar basic unit is injected in tunnel inwall lithosphere inner surface).Up to the pit in the basic unit is filled and led up, natural air drying obtains drainage blanket 2;
(3) spray waterproofing course 3: add isocyanates and amine compound respectively in the special-purpose polyureas spraying machine in the different container containings, mixing jetting is on drainage blanket, and jet thickness is 1.2mm, moment film forming obtain the waterproofing course 3 of one.The inner surface of waterproofing course is also poured into a mould by layer of concrete as two linings 4 in whole constructing tunnel technology.Whole tunnel structure as shown in Figure 1.
Embodiment 2
A kind of job practices of tunnel waterproof and water drainage system may further comprise the steps:
(1) preparation drainage blanket raw material: add the rubber particles of 75 parts of particle diameter 1.5mm, 25 parts of particle diameter 200 purpose rubber particles, 20 parts of mineral wool fibers, 80 parts of VAE emulsion mixing and stirring by weight;
(2) spray drainage blanket 2: the drainage blanket raw material of getting ready is added spraying machine evenly be injected in the tunnel inwall sprayed mortar basic unit 1 (sprayed mortar basic unit is injected in tunnel inwall lithosphere inner surface).Up to the pit in the basic unit is filled and led up, natural air drying obtains drainage blanket 2;
(3) spray waterproofing course 3: add isocyanates and amine compound respectively in the special-purpose polyureas spraying machine in the different container containings, mixing jetting is on drainage blanket, and jet thickness is 1.5mm, moment film forming obtain the waterproofing course 3 of one.The inner surface of waterproofing course is also poured into a mould by layer of concrete as two linings 4 in whole constructing tunnel technology.Whole tunnel structure as shown in Figure 1.
Embodiment 3
A kind of job practices of tunnel waterproof and water drainage system may further comprise the steps:
(1) preparation drainage blanket raw material: add the rubber particles of 25 parts of particle diameter 1.2mm, 75 parts of particle diameter 150 purpose rubber particles, 30 parts of mineral wool fibers, 60 parts of VAE emulsion mixing and stirring by weight;
(2) spray drainage blanket 2: the drainage blanket raw material of getting ready is added spraying machine, and evenly to be injected in tunnel inwall sprayed mortar basic unit last 1, (sprayed mortar basic unit is injected in tunnel inwall lithosphere inner surface).Up to the pit in the basic unit is filled and led up, natural air drying obtains drainage blanket 2;
(3) spray waterproofing course 3: add isocyanates and amine compound respectively in the special-purpose polyureas spraying machine in the different container containings, mixing jetting is on drainage blanket, and jet thickness is 1.3mm, moment film forming obtain the waterproofing course 3 of one.The inner surface of waterproofing course is also poured into a mould by layer of concrete as two linings 4 in whole constructing tunnel technology.Whole tunnel structure as shown in Figure 1.
A kind of job practices of tunnel waterproof and water drainage system may further comprise the steps:
(1) preparation drainage blanket raw material: add the rubber particles of 70 parts of particle diameter 1.4mm, 30 parts of particle diameter 120 purpose rubber particles, 50 parts of mineral wool fibers, 70 parts of VAE emulsion mixing and stirring by weight;
(2) spray drainage blanket 2: the drainage blanket raw material of getting ready is added spraying machine evenly be injected in the tunnel inwall sprayed mortar basic unit 1 (sprayed mortar basic unit is injected in tunnel inwall lithosphere inner surface).Up to the pit in the basic unit is filled and led up, natural air drying obtains drainage blanket 2;
(3) spray waterproofing course 3: add isocyanates and amine compound respectively in the special-purpose polyureas spraying machine in the different container containings, mixing jetting is on drainage blanket, and jet thickness is 1.3mm, moment film forming obtain the waterproofing course 3 of one.The inner surface of waterproofing course is also poured into a mould by layer of concrete as two linings 4 in whole constructing tunnel technology.Whole tunnel structure as shown in Figure 1.
Embodiment 5
A kind of job practices of tunnel waterproof and water drainage system may further comprise the steps:
(1) preparation drainage blanket raw material: add the rubber particles of 40 parts of particle diameter 1.1mm, 60 parts of particle diameter 160 purpose rubber particles, 50 parts of mineral wool fibers, 70 parts of VAE emulsion mixing and stirring by weight;
(2) spray drainage blanket 2: the drainage blanket raw material of getting ready is added spraying machine evenly be injected in the tunnel inwall sprayed mortar basic unit 1 (sprayed mortar basic unit is injected in tunnel inwall lithosphere inner surface).Up to the pit in the basic unit is filled and led up, natural air drying obtains drainage blanket 2;
(3) spray waterproofing course 3: add isocyanates and amine compound respectively in the special-purpose polyureas spraying machine in the different container containings, mixing jetting is on drainage blanket, and jet thickness is 1.4mm, moment film forming obtain the waterproofing course 3 of one.The inner surface of waterproofing course is also poured into a mould by layer of concrete as two linings 4 in whole constructing tunnel technology.Whole tunnel structure as shown in Figure 1.
Claims (3)
1. the job practices of a tunnel waterproof and water drainage system may further comprise the steps:
(1) preparation drainage blanket raw material: add the rubber particles of 50～75 parts of particle diameter 1.0～1.5mm, 50～75 parts of particle diameter 100～200 purpose rubber particles, 20～50 parts of mineral wool fibers, 50～80 parts of VAE emulsion mixing and stirring by weight;
(2) spray drainage blanket: the drainage blanket raw material of getting ready is added spraying machine evenly be injected in the tunnel inwall sprayed mortar basic unit, up to the pit in the sprayed mortar basic unit being filled and led up natural air drying;
(3) spray waterproofing course: add isocyanate component and amine compound component respectively in the special-purpose polyureas spraying machine in the different container containings, by mixing jetting on drainage blanket, moment film forming obtain the waterproofing course of one.
2. according to the job practices of claim 1 tunnel waterproof and water drainage system, it is characterized in that: the waterproofing course jet thickness is 1.2～1.5mm in the described step (3).
3. according to the job practices of claim 1 tunnel waterproof and water drainage system, it is characterized in that: the sprayed mortar basic unit in the described step (2) is injected in tunnel inwall lithosphere inner surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101045719A CN101614129B (en) | 2009-08-10 | 2009-08-10 | Construction method of tunnel waterproof and water drainage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101045719A CN101614129B (en) | 2009-08-10 | 2009-08-10 | Construction method of tunnel waterproof and water drainage system |
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| CN101614129A CN101614129A (en) | 2009-12-30 |
| CN101614129B true CN101614129B (en) | 2011-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101045719A Expired - Fee Related CN101614129B (en) | 2009-08-10 | 2009-08-10 | Construction method of tunnel waterproof and water drainage system |
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Families Citing this family (16)
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| CN102140921A (en) * | 2011-03-30 | 2011-08-03 | 长安大学 | Novel tunnel waterproof structure |
| CN104179513B (en) * | 2014-08-13 | 2016-08-17 | 中铁隧道集团二处有限公司 | A kind of construction method of tunnel in cold area hole external thermal insulation outlet |
| CN104806272B (en) * | 2015-04-15 | 2015-12-09 | 西安科技大学 | Tunnel shunting combined type guarded drainage integrated system and construction method and using method |
| CN105888702B (en) * | 2016-05-09 | 2017-12-01 | 中建隧道建设有限公司 | Waterproofing Technology of Underground Works method |
| CN106194255B (en) * | 2016-08-31 | 2017-11-03 | 东南大学 | Tunnel waterproof and water drainage system and its method of construction |
| CN106640151A (en) * | 2016-12-16 | 2017-05-10 | 绍兴文理学院 | Buried geothermal energy antifreezing heating system for energy tunnel layer |
| CN106593491A (en) * | 2016-12-16 | 2017-04-26 | 绍兴文理学院 | Ground temperature anti-freezing heating system of energy tunnel lining burying type |
| CN106437793A (en) * | 2016-12-16 | 2017-02-22 | 绍兴文理学院 | Energy tunnel inverted arch combined type ground temperature energy antifreezing and heating system |
| CN106437791A (en) * | 2016-12-16 | 2017-02-22 | 绍兴文理学院 | Energy source tunnel lining composite type ground warmth anti-freezing heating system |
| CN106522999A (en) * | 2016-12-16 | 2017-03-22 | 绍兴文理学院 | Energy tunnel lining layer embedded ground temperature energy heat exchange system |
| CN106437792A (en) * | 2016-12-16 | 2017-02-22 | 绍兴文理学院 | Inverted arc layer buried geothermal anti-freezing heating system of energy tunnel |
| CN107036955B (en) * | 2017-06-09 | 2020-01-10 | 北京工业大学 | Model test device for simulating performance of tunnel single-layer lining integral waterproof and drainage system |
| CN108166999B (en) * | 2017-09-18 | 2023-10-27 | 招商局重庆交通科研设计院有限公司 | Waterproof, antifreezing and fireproof structure of tunnel in cold region |
| CN109209443A (en) * | 2018-11-12 | 2019-01-15 | 山东大学 | A kind of construction method of breaking surrounding rock tunnel structure |
| CN109296389B (en) * | 2018-12-10 | 2022-09-23 | 潘晓东 | Spraying type waterproof and drainage structure and method for expressway tunnel |
| CN112502190B (en) * | 2020-10-30 | 2022-04-26 | 苏州久泰防水工程有限公司 | Construction method of waterproof paint |
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| US4915542A (en) * | 1984-11-16 | 1990-04-10 | Fernando Gordun B | Process for waterproofing surfaces |
| CN2109296U (en) * | 1991-11-21 | 1992-07-08 | 重庆长江橡胶厂 | Cloth sandwiched rubber plate for tunnel water-proof engineering |
| CN1210507A (en) * | 1996-12-04 | 1999-03-10 | Mbt控股公司 | Cement structure containing waterproofing layer |
| EP0898052B1 (en) * | 1997-08-15 | 2003-10-29 | Köster Bauchemie Gmbh | Method of sealing a subterranean formation against the penetration of water |
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2009
- 2009-08-10 CN CN2009101045719A patent/CN101614129B/en not_active Expired - Fee Related
Patent Citations (6)
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|---|---|---|---|---|
| US4915542A (en) * | 1984-11-16 | 1990-04-10 | Fernando Gordun B | Process for waterproofing surfaces |
| CN2109296U (en) * | 1991-11-21 | 1992-07-08 | 重庆长江橡胶厂 | Cloth sandwiched rubber plate for tunnel water-proof engineering |
| CN1210507A (en) * | 1996-12-04 | 1999-03-10 | Mbt控股公司 | Cement structure containing waterproofing layer |
| EP0898052B1 (en) * | 1997-08-15 | 2003-10-29 | Köster Bauchemie Gmbh | Method of sealing a subterranean formation against the penetration of water |
| CN1457383A (en) * | 2000-06-12 | 2003-11-19 | 格雷斯公司 | Tunnel waterproofing construction method |
| CN1524159A (en) * | 2000-06-12 | 2004-08-25 | Tunnel waterproofing method |
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