CN109056812A - A kind of subway open-cut station construction joint waterproof construction method - Google Patents
A kind of subway open-cut station construction joint waterproof construction method Download PDFInfo
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- CN109056812A CN109056812A CN201811134415.2A CN201811134415A CN109056812A CN 109056812 A CN109056812 A CN 109056812A CN 201811134415 A CN201811134415 A CN 201811134415A CN 109056812 A CN109056812 A CN 109056812A
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- waterproof
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- joint
- liquid rubber
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/04—Making large underground spaces, e.g. for underground plants, e.g. stations of underground railways; Construction or layout thereof
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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Abstract
The invention discloses a kind of subway open-cut station construction joint waterproof construction methods, which is characterized in that specific step is as follows for construction: (1) one of 3mm thickness galvanized steel plain sheet waterstop being arranged in the middle part of construction joint；(2) external spray 2mm thickness spraying liquid rubber spray paint.Compared with prior art, the beneficial effects of the present invention are: the present invention is attached most importance to seam waterproof, and it is aided with waterproof layer and reinforces waterproof, and meet structure requirement.Impermeable structure should take effective technology measure, guarantee that water-proof concrete reaches defined density, impermeability, crack resistance, anti-corrosive properties and durability while guaranteeing the self waterproofing ability of reinforced concrete structure.It is preferred that waterproof material, optimization details position waterproofing design, guarantee that waterproof effect is reliable.
Description
Technical field
The invention belongs to waterproof construction technology fields, and in particular to a kind of subway open-cut station construction joint waterproof construction side
Method.
Background technique
In subway construction, waterproof is to be related to the important content of engineering robustness and durability.Underground water leakage can be to mixed
Xtah Crude Clay structure causes serious infringement, causes steel bar corrosion, directly affects structural bearing capacity.Moist environment can also generate in subway
The security risk of power supply line of portion influences the operation maintenance of subway.The operation for increasing subway is repaired in leak stopping after leakage occurs
Cost also has an impact the normal operation of subway.Currently, there is different degrees of leakage regimen in China major part subway station
Condition, certain southern subway are not runed also, and the expense for leak stopping has been up to 1.2 hundred million yuan, subway station and running tunnel civil engineering
After completion, subway concourse, platform, bottom plate have leakage, flowing water and the water burst of heavier degree, and plugging operation continue for 1 year or more time,
Due to percolating water, large number of equipment has been damaged, has affected normal operation, has caused bad social influence.According to statistics, subway leak stopping and
The expense blocked for later maintenance is close to 5 times of construction cost.Therefore, subway construction leakage problems are solved, ground ironworker is promoted
Cheng Zhiliang ensures that operation security is of great significance.
The weak links such as construction joint, embedding pipe fittings, deformation joint and post-cast strip are certainly existed in construction, due to waterproof roll
The limitation of application property generally does waterproof measure in upstream face using materials such as slip casting, sealant, waterstops, and back side does not have
Corresponding prevention processing, the influence that these details positions generate structure due to factors such as time environment and geological conditions, and pole
Easily deformation occurs, and waterproof material is not close in conjunction with structure or if handled in the construction process not in place, it will leads to waterproof
Measure failure.
Summary of the invention
For above-mentioned the technical problems existing in the prior art, present invention technical solution used for the above purpose
Be: a kind of subway open-cut station construction joint waterproof construction method, specific step is as follows for construction: (1) one of setting in the middle part of construction joint
3mm thickness galvanized steel plain sheet waterstop；(2) external spray 2mm thickness spraying liquid rubber spray paint, first base treatment: foundation is set
Meter requires, and is rejected, is polished at obvious bumps or irregular prominent surface, guaranteed that basal plane is clean, solid, must not there is shortcake
Pine, dusting, skin effect phenomenon, without floating ash, grease, sundries.It must be to detail treatments such as deformation joint, construction joint, wall pipes before spraying
Do reinforcement processing.Additional waterproof course should be using brushing or spraying rapid hardening coating, and the thickness of additional waterproof coating is not preferably less than
1.2mm；Non-woven fabrics additional waterproofing layer should be pressed from both sides and is layered among coating, and paving is real to be cemented, without hollowing, alice, fold.Rapid hardening rubber waterproof
Coating should spray uniformly, and from the distant to the near, from low to high, thickness is consistent.Spray gun distance spraying basal plane distance is preferably 600~800mm,
Spray gun should be vertical with base.Generally need continuous spray 4~6 times to reach design thickness, upper and lower twice of film need to be mutually perpendicular to, thick
It is thin consistent.
Further, the construction joint in step (1) is in waterproof keypoint part such as station and channel, air duct joint region
When, the construction joint increases non-woven fabrics additional waterproof course outside.
Further, it when the construction joint in step (1) is annular, is added on the outside of top plate position and separate type side wall together
Polyurethane seal, and connect stubble at construction joint and reserve 300mm, construction seams back side spraying capillary crystalline waterproof agent, concrete
After demoulding, before spraying waterproof material, checks whether concrete surface has crackle, if any crack, is blocked according to leak stopping mode,
After plugging material is dry, base treatment is carried out, it is the defects of substrate surface is without honeycomb, hole, gap, substantially smooth, it removes floating
Slurry, floating ash, grease and spot, without obvious ponding.Concrete surface, left and right even application, plane are sprayed on low pressure ejector
The details such as lap-joint's construction joint position lap-joint must have the spraying of at least 15cm to overlap.Sequence of construction should be towards construction operation
Face, falls back spraying application, such as finds drain spray place, timely coating.Quantity for spray should be not less than 13L/m2。
Further, the specific ingredient of the liquid rubber spray-coating material are as follows: the liquid rubber spray-coating material is divided into two kinds of A, B
Component；The A group is divided into anion liquid body rubber asphalt emulsion；The B group is divided into coagulant solution；The component A, with matter
Measuring percentage indicates, liquid rubber asphalt emulsion weight solid content is 50-75%, wherein rubber latex 10-25%, pitch cream
Liquid 1-60%, anionic dispersing agents 0.01-2%, anionic surfactant 0.01-2%, fatty alcohol polyoxyethylene ether 0.1-
10%, OEP-70 0.1-10%, AEP 0.1-10%, carbon black 0-3%, fine powder material 0-3%, antifreeze auxiliary agent 0.5-3%；The B
Component indicates with mass percent, the water for being 3-18% by the concentration that calcium chloride, Complex aluminium-iron mixed with polymers are formulated
Solution, the Complex aluminium-iron polymer are one or both of aluminium polychloride, bodied ferric sulfate；It is described that there is liquid rubber
The spraying capacity ratio of spray paint B component and component A is 1/15-1/3.5
Compared with prior art, the beneficial effects of the present invention are: liquid rubber spray-coating material has good mechanical property and prevents old
Change performance.The waterproof layer of spraying has very strong adhesion strength, tensile strength, elastic recovery rate and excellent resistance to ag(e)ing,
Elastic film elongation is more than 1000%, recovery rate up to 90% or more, can effectively solve the problem that various stress deformations, swelling cracking,
The problems such as leakage caused by puncturing or be not connected firmly etc., corrosion；Spraying liquid rubber spray paint is to synthesize macromolecular liquid rubber
It is main component with modified emulsifying asphalt, adds extraordinary solidfied material, in air after being sufficiently mixed by spraying, wink when reaching basal plane
Between solidify, form the polymer film of integral seamless.Have the characteristics that high resiliency, resistance to ag(e)ing, non-environmental-pollution, and it solidifies
Rapidly, at the same because its adhesion property is good, not channeling water the features such as, waterproof performance is superior.The present invention is attached most importance to seam waterproof, and auxiliary
Reinforce waterproof with waterproof layer, and meets structure requirement.Impermeable structure should be in the self waterproofing for guaranteeing reinforced concrete structure
While ability, effective technology measure is taken, guarantees that water-proof concrete reaches defined density, impermeability, crack resistance, anti-corrosion
Property and durability.It is preferred that waterproof material, optimization details position waterproofing design, guarantee that waterproof effect is reliable.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
Embodiment
Liquid rubber spray-coating material is prepared, the liquid rubber spray-coating material is divided into two kinds of components of A, B；The A group is divided into yin
Ionic liquid rubber asphalt lotion；The B group is divided into coagulant solution；
A component anion liquid body rubber asphalt emulsion adds up to 100kg, wherein (co) polychloroprene rubber lotion 25kg, No. 80 stones
Oil asphalt lotion 30kg, anionic dispersing agents TH -904 are 0.15kg, naphthalenesulfonate formaldehyde condensation compound 0.15kg, CD -4 are
0.15kg, anionic surfactant rosin soap 1kg, synthetic fatty acid soap 0.5kg, alkylsulfonate 0.2kg, fatty alcohol polyoxy
Vinethene 2%, OEP-70 3%, AEP 4%；Carbon black 1.5kg, fineness is antifreeze not less than porcelain the powder 0.75kg, CX-01 of 800 mesh to be helped
Agent 0.8kg, water are surplus.B component is indicated with mass percent, is formulated by calcium chloride, Complex aluminium-iron mixed with polymers
The aqueous solution that concentration is 3-18%；B component, is indicated with mass percent, is answered by 95% calcium chloride, 1.5% sodium chloride, 5%
The concentration that ferro-aluminum mixed with polymers is formulated is closed as 10% aqueous solution, Complex aluminium-iron polymer is aluminium polychloride.The liquid
The spraying capacity ratio of body rubber spray paint B component and A component is 1/15-1/3.5.
A kind of subway open-cut station construction joint waterproof construction method, specific step is as follows for construction: (1) setting in the middle part of construction joint
One of 3mm thickness galvanized steel plain sheet waterstop；(2) external spray 2mm thickness spraying liquid rubber spray paint, first base treatment: according to
According to design requirement, at obvious bumps or irregular prominent surface is rejected, is polished, guarantees that basal plane is clean, solid, it must not
There are loose, dusting, skin effect phenomenon, without floating ash, grease, sundries.It must be to thin portions such as deformation joint, construction joint, wall pipes before spraying
Node does reinforcement processing.Additional waterproof course should be using brushing or spraying rapid hardening coating, and the thickness of additional waterproof coating is not preferably less than
1.2mm；Non-woven fabrics additional waterproofing layer should be pressed from both sides and is layered among coating, and paving is real to be cemented, without hollowing, alice, fold.Rapid hardening rubber waterproof
Coating should spray uniformly, and from the distant to the near, from low to high, thickness is consistent.Spray gun distance spraying basal plane distance is preferably 600~800mm,
Spray gun should be vertical with base.Generally need continuous spray 4~6 times to reach design thickness, upper and lower twice of film need to be mutually perpendicular to, thick
It is thin consistent.
Further, the construction joint in step (1) is in waterproof keypoint part such as station and channel, air duct joint region
When, the construction joint increases non-woven fabrics additional waterproof course outside.
Further, it when the construction joint in step (1) is annular, is added on the outside of top plate position and separate type side wall together
Polyurethane seal, and connect stubble at construction joint and reserve 300mm, construction seams back side spraying capillary crystalline waterproof agent, concrete
After demoulding, before spraying waterproof material, checks whether concrete surface has crackle, if any crack, is blocked according to leak stopping mode,
After plugging material is dry, base treatment is carried out, it is the defects of substrate surface is without honeycomb, hole, gap, substantially smooth, it removes floating
Slurry, floating ash, grease and spot, without obvious ponding.Concrete surface, left and right even application, plane are sprayed on low pressure ejector
The details such as lap-joint's construction joint position lap-joint must have the spraying of at least 15cm to overlap.Sequence of construction should be towards construction operation
Face, falls back spraying application, such as finds drain spray place, timely coating.Quantity for spray should be not less than 13L/m2。
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of subway open-cut station construction joint waterproof construction method, which is characterized in that specific step is as follows for construction:
(1) one of 3mm thickness galvanized steel plain sheet waterstop is set in the middle part of construction joint；
(2) external spray 2mm thickness spraying liquid rubber spray paint.
2. a kind of subway open-cut station construction joint waterproof construction method as described in claim 1, which is characterized in that the step
(1) when the construction joint in is in waterproof keypoint part such as station and channel, air duct joint region, increase nonwoven outside the construction joint
Cloth additional waterproof course.
3. a kind of subway open-cut station construction joint waterproof construction method as described in claim 1, which is characterized in that the step
(1) when the construction joint in is annular, one of polyurethane seal is added on the outside of top plate position and separate type side wall, and in construction joint
Place connects stubble and reserves 300mm, and construction seams back side spraying capillary crystalline waterproof agent.
4. a kind of subway open-cut station construction joint waterproof construction method as described in claim 1, which is characterized in that the liquid
The specific ingredient of body rubber spray paint are as follows: the liquid rubber spray-coating material is divided into two kinds of components of A, B；The A group is divided into anion
Liquid rubber asphalt emulsion；The B group is divided into coagulant solution；The component A, is indicated with mass percent, liquid rubber drip
Green lotion weight solid content is 50-75%, wherein rubber latex 10-25%, asphalt emulsion 1-60%, anionic dispersing agents
0.01-2%, anionic surfactant 0.01-2%, fatty alcohol polyoxyethylene ether 0.1-10%, OEP-70 0.1-10%,
AEP 0.1-10%, carbon black 0-3%, fine powder material 0-3%, antifreeze auxiliary agent 0.5-3%；The B component, with mass percent table
Show, the aqueous solution for being 3-18% by the concentration that calcium chloride, Complex aluminium-iron mixed with polymers are formulated, the Complex aluminium-iron is poly-
Conjunction object is one or both of aluminium polychloride, bodied ferric sulfate；It is described that there is liquid rubber spray-coating material B component and component A
Spraying capacity ratio be 1/15-1/3.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811134415.2A CN109056812A (en) | 2018-09-27 | 2018-09-27 | A kind of subway open-cut station construction joint waterproof construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811134415.2A CN109056812A (en) | 2018-09-27 | 2018-09-27 | A kind of subway open-cut station construction joint waterproof construction method |
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| Publication Number | Publication Date |
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| CN109056812A true CN109056812A (en) | 2018-12-21 |
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| CN201811134415.2A Pending CN109056812A (en) | 2018-09-27 | 2018-09-27 | A kind of subway open-cut station construction joint waterproof construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113322803A (en) * | 2021-05-10 | 2021-08-31 | 中国铁路设计集团有限公司 | Double-face combined anti-sticking type buried water stop belt with simple structure |
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| CN106245686A (en) * | 2016-10-10 | 2016-12-21 | 江苏建筑职业技术学院 | Underground pipe gallery agent structure expansion joint substituted device and implementation |
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| CN108018886A (en) * | 2017-12-11 | 2018-05-11 | 大连美宸特环保节能产品有限公司 | A kind of subway waterproof roofing layer construction method |
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2018
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101278687B1 (en) * | 2012-12-28 | 2013-06-24 | 원하종합건설 주식회사 | Box-type thrust tube structure, and method of building underground structure using the box-type thrust tube structure |
| CN106436777A (en) * | 2016-09-12 | 2017-02-22 | 中国建筑第五工程局有限公司 | Subway station skin waterproof structure and construction method thereof |
| CN106245686A (en) * | 2016-10-10 | 2016-12-21 | 江苏建筑职业技术学院 | Underground pipe gallery agent structure expansion joint substituted device and implementation |
| CN108018886A (en) * | 2017-12-11 | 2018-05-11 | 大连美宸特环保节能产品有限公司 | A kind of subway waterproof roofing layer construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113322803A (en) * | 2021-05-10 | 2021-08-31 | 中国铁路设计集团有限公司 | Double-face combined anti-sticking type buried water stop belt with simple structure |
| CN113322803B (en) * | 2021-05-10 | 2023-03-10 | 中国铁路设计集团有限公司 | Double-face combined anti-sticking type buried water stop belt with simple structure |
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Application publication date: 20181221 |
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