CN209923988U

CN209923988U - Combined waterproof layer structure of top plate of green belt underground engineering

Info

Publication number: CN209923988U
Application number: CN201821844339.XU
Authority: CN
Inventors: 王亚
Original assignee: Jiangsu Xingxia Construction Engineering Group Co Ltd
Current assignee: Jiangsu Xingxia Construction Engineering Group Co Ltd
Priority date: 2018-11-09
Filing date: 2018-11-09
Publication date: 2020-01-10
Anticipated expiration: 2028-11-09

Abstract

The utility model provides a combined waterproof layer structure of a green belt underground engineering roof, which comprises an underground engineering roof structure layer, a waterproof coating layer, a waterproof coil layer and a protective layer from inside to outside in sequence; the top plate structure layer of the underground engineering is a pouring layer which is compacted through vibration; the waterproof coating layer is a non-cured rubber asphalt waterproof coating layer; the waterproof roll material layer is a self-adhesive polyester tire modified asphalt chemical root-puncture-resistant waterproof roll material layer; the protective layer is a fine aggregate concrete protective layer. The utility model designs two waterproof layers by utilizing the novel waterproof material, combines the special technical performance and the waterproof application characteristic of the two waterproof materials, not only repairs the tiny structural cracks in the building, but also solves the problem of water channeling of the traditional single SBS coiled material; the waterproof structure is simple in structure, simple in construction process and good in waterproof effect.

Description

Combined waterproof layer structure of top plate of green belt underground engineering

Technical Field

The utility model belongs to the technical field of the building, in particular to combined waterproof layer structure of greenbelt underground works roof.

Background

Along with the development of buildings, the building functions are continuously improved, along with the improvement of greening requirements, the planting and greening of the top plate of the underground structure are more and more common, the key of research is how to improve the waterproof construction quality of the top plate of the basement, and the actual problem of the waterproof structure is improved under the conditions of feasible technology, reliable process and quality guarantee.

SUMMERY OF THE UTILITY MODEL

The technical problem is as follows: in order to solve the defects of the prior art, the utility model provides a combination waterproof layer structure of greenbelt underground works roof and construction method thereof.

The technical scheme is as follows: the utility model provides a pair of combination waterproof layer structure of greenbelt underground works roof, its characterized in that: the structure comprises an underground engineering roof structure layer, a waterproof coating layer, a waterproof coil layer and a protective layer in sequence from inside to outside;

the top plate structure layer of the underground engineering is a pouring layer which is compacted through vibration;

the waterproof coating layer is a non-cured rubber asphalt waterproof coating layer;

the waterproof roll material layer is a self-adhesive polyester tire modified asphalt chemical root-puncture-resistant waterproof roll material layer;

the protective layer is a fine aggregate concrete protective layer.

As an optimization scheme: the internal and external corners at the joint of the flat vertical surfaces of the structural layer of the top plate of the underground engineering are uniform, smooth and flat fillets, and the radius of the circular arc is not less than 50 mm.

As a further optimization scheme: the thickness of the waterproof coating layer is 2 mm.

As a further optimization scheme: the width of hot melt asphalt overflowing from the lap seam part of the waterproof coiled material layer is 5-8mm, the lap width of the long edge of the coiled material layer is 100mm, and the lap width of the short edge of the coiled material layer is 100 mm.

As a further optimization scheme: the thickness of the protective layer is 50 mm.

Has the advantages that: the utility model designs two waterproof layers by utilizing the novel waterproof material, combines the special technical performance and the waterproof application characteristic of the two waterproof materials, not only repairs the tiny structural cracks in the building, but also solves the problem of water channeling of the traditional single SBS coiled material; not only the structure is simple, but also the waterproof effect is very good.

Drawings

Fig. 1 is a schematic structural view of a combined waterproof layer structure of a green belt underground engineering roof of the present invention;

reference numerals: 1-underground engineering roof structure layer, 2-waterproof coating layer, 3-waterproof coil layer and 4-protective layer.

Detailed Description

The present invention will be further clarified by the following description with reference to the attached drawings and specific examples, which should be understood as being merely illustrative of the present invention and not limiting the scope of the present invention, and modifications of various equivalent forms of the present invention by those skilled in the art after reading the present invention, all fall within the scope defined by the appended claims of the present application.

The utility model provides a combined waterproof layer structure of a green belt underground engineering roof, which comprises an underground engineering roof structure layer 1, a waterproof coating layer 2, a waterproof coil material layer 3 and a protective layer 4 from inside to outside in sequence;

the underground engineering top plate structure layer 1 is a pouring layer which is compacted through vibration; the waterproof coating layer 2 is a non-cured rubber asphalt waterproof coating layer; the waterproof roll material layer 3 is a self-adhesive polyester tire modified asphalt chemical root-puncture-resistant waterproof roll material layer; the protective layer 4 is a fine-grained concrete protective layer.

The construction method of the combined waterproof layer structure comprises the following steps:

step 1: treating a base layer of a top plate structure of an underground engineering and strengthening details, wherein the surface of the base layer is smooth, clean and dry, the base layer meets the requirement of smooth and consistent gradient, a local low recess for collecting water is not required, cement mortar is applied to the low recess for leveling treatment, the internal and external corners of the intersection of the flat vertical surfaces are made into uniform, smooth and round corners, the radius of the circular arc is not less than 50mm, sharp hard objects, mortar lumps and the like protruding out of the surface of the base layer are shoveled off, dust and sundries are removed completely, the internal and external corners, the pipe roots and the like are carefully cleaned, and if different stains, iron rust and the like exist, the base layer is cleaned completely by using sand paper, a steel wire brush or a solvent; the internal and external corners, deformation joints and other parts are constructed by a brushing method and are brushed for several times, and the tyre body reinforcing material is clamped and paved in the middle of the coating layer, firmly paved and adhered, and is not hollowly and warped.

Step 2: the non-solidified rubber asphalt water-proof paint is removed from the barrel by special barrel-removing machine, poured into peptizing machine, discharged when the temp. is up to 180-220 deg., uniformly coated on the base layer, when the coating is uniformly coated, the waterproof layer is once formed, its thickness is 2mm, and the coating thickness can be detected by adopting needle-measuring method, if the thickness is not up to standard or its local portion is required to be reinforced, some paint can be taken out, and the rubber scraper can be used for making local reinforcement.

And step 3: the construction of the waterproof coil layer 3 is carried out within 5 minutes after the construction of the waterproof coating layer 2 is finished, and the coil is adhered with the waterproof coil layer, and the empty distance is not more than 6 m; pressing the paving coiled material from one end, uniformly paving forwards, and scraping; adjacent coiled material overlap joint should adopt the body to reserve overlap edge from the bonding of molten asphalt, the little compression roller is handed to operating personnel, from inside to outside remove with perpendicular to coiled material long edge direction limit compaction limit, the overlap joint position should be with overflowing the hot melt asphalt and for the degree, overflow width 5-8mm, and should evenly straighten in the same direction as straight, the long limit overlap width of coiled material is 100mm, minor face overlap joint width is 100mm, the overlap joint adopts the hot melt construction, the whole back that finishes of paving of coiled material, should be to coiled material apparent mass, the overlap joint quality, project such as local nodal processing is inspected, if the discovery has quality defect, repair immediately.

And 4, step 4: the protective layer 4 is laid by fine stone concrete with the thickness of 50mm, the vibration is dense during pouring, the flatness of the protective layer 4 is enabled to meet the requirement by leveling, and the flatness error is 5 mm.

The utility model discloses a two kinds of novel waterproof materials combine its distinctive technical performance and waterproof application characteristics, and non-curing rubber asphalt waterproof coating is a non-curing, does not become the novel waterproof material of membrane, and it can combine together with the resistant root puncture waterproofing membrane of modified asphalt chemistry, both can repair the inside slight structural crack of building, also can solve the problem that traditional single SBS coiled material scurried water, not only simple structure, and construction process is simple and easy, and the most important is that water-proof effects is very good.

Claims

1. The utility model provides a combination waterproof layer structure of greenbelt underground works roof which characterized in that: the structure comprises an underground engineering roof structure layer, a waterproof coating layer, a waterproof coil layer and a protective layer in sequence from inside to outside;

the top plate structure layer of the underground engineering is a pouring layer which is compacted through vibration, the internal and external corners at the intersection of the plane and the vertical planes are uniform, smooth and flat fillets, and the radius of the circular arc is not less than 50 mm;

the waterproof coating layer is a non-cured rubber asphalt waterproof coating layer with the thickness of 2 mm;

the waterproof roll layer is a self-adhesive polyester tire modified asphalt chemical root-puncture-resistant waterproof roll layer, the width of hot-melt asphalt overflowing from the lap seam part of the roll is 5-8mm, the lap width of the long edge of the roll is 100mm, and the lap width of the short edge of the roll is 100 mm;

the protective layer is a fine aggregate concrete protective layer with the thickness of 50 mm.