CN115387386A - Waterproof structure and construction process of comprehensive pipe rack - Google Patents
Waterproof structure and construction process of comprehensive pipe rack Download PDFInfo
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- CN115387386A CN115387386A CN202211283129.9A CN202211283129A CN115387386A CN 115387386 A CN115387386 A CN 115387386A CN 202211283129 A CN202211283129 A CN 202211283129A CN 115387386 A CN115387386 A CN 115387386A
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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
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
- B32B13/04—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
- B32B13/04—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B13/08—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
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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
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
- E02D31/025—Draining membranes, sheets or fabric specially adapted therefor, e.g. with dimples
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0276—Polyester fibres
- B32B2262/0284—Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2450/00—Gaskets
- E02D2450/10—Membranes
- E02D2450/105—Membranes impermeable
- E02D2450/106—Membranes impermeable for liquids
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2450/00—Gaskets
- E02D2450/10—Membranes
- E02D2450/108—Membranes multi-layered
Abstract
The invention provides a waterproof structure and a construction process of a comprehensive pipe rack, wherein the waterproof structure of the comprehensive pipe rack comprises a coiled material waterproof structure, a waterproof structure at a female corner, a waterproof structure at a male corner, a waterproof structure at a planting top plate and a pipeline seam waterproof structure between the comprehensive pipe rack and a pipeline sleeve, wherein the coiled material waterproof structure comprises polysulfide glue filled in a joint or a construction seam of the comprehensive pipe rack, a first polyurea enhancement layer covered at the joint or the construction seam of the comprehensive pipe rack, a waterproof coiled material paved on the first polyurea enhancement layer and a second polyurea coating layer sprayed on the waterproof coiled material; the first polyurea enhancement layer comprises a first polyurea coating layer and non-woven fabrics lined in the first polyurea coating layer. The waterproof structure can ensure that the comprehensive pipe gallery is tightly connected with the waterproof coating, has good waterproof effect, and can save the cost of later maintenance. In addition, the construction process of the waterproof structure is easy to operate, low in construction cost, wide in applicability and strong in popularization.
Description
Technical Field
The invention relates to the field of comprehensive pipe gallery construction, in particular to a waterproof structure of a comprehensive pipe gallery and a construction process.
Background
The utility tunnel is an underground city pipeline utility tunnel, namely, a tunnel space is built underground the city, various engineering pipelines such as electric power, communication, gas, heat supply, water supply and drainage and the like are integrated, a special overhaul port, a lifting port and a monitoring system are arranged, unified planning, unified design, unified construction and management are implemented, and the utility tunnel is an important infrastructure and a 'lifeline' for guaranteeing city operation. Because pipeline and the equipment of installation can not work under the environment of humidity in the utility tunnel, all need do water repellent on the utility tunnel to prevent that the outside moisture steam of utility tunnel from permeating to in the utility tunnel. However, the existing water-proof treatment of the utility tunnel is not good, and water seepage into the utility tunnel is often caused at the edge position, the internal corner position, the planting top plate position, the construction joint position, the deformation joint position and the pipeline outlet position of the waterproof coiled material, so that the pipeline or the equipment often breaks down.
Disclosure of Invention
One of the purposes of the invention is to provide a waterproof structure of a comprehensive pipe rack, so as to solve the problem that the conventional comprehensive pipe rack is poor in waterproof treatment, so that a pipeline or equipment frequently breaks down.
The second purpose of the invention is to provide a construction process of the waterproof structure of the comprehensive pipe rack, so as to provide a construction method of the waterproof structure of the comprehensive pipe rack.
One of the objects of the invention is achieved by: a waterproof structure of a comprehensive pipe rack comprises a coiled material waterproof structure, a water-proof structure at an internal corner, a water-proof structure at an external corner, a water-proof structure at a planting top plate and a water-proof structure at a pipeline joint between the comprehensive pipe rack and a pipeline sleeve, wherein the coiled material waterproof structure comprises polysulfide glue filled in a joint or a construction joint of the comprehensive pipe rack, a first polyurea enhancement layer covered at the joint or the construction joint of the comprehensive pipe rack, a waterproof coiled material laid on the first polyurea enhancement layer and a second polyurea coating layer sprayed on the waterproof coiled material; the first polyurea enhancement layer comprises a first polyurea coating layer and a non-woven fabric arranged in the first polyurea coating layer in a lining mode.
Waterproofing membrane is polymer self-adhesive waterproofing membrane, the edge of first polyurea enhancement layer surpasss waterproofing membrane's edge, waterproofing membrane's edge is fixed through butyl tape-stripping on the first polyurea enhancement layer, the second polyurea dope layer with first polyurea enhancement layer waterproofing membrane and butyl tape covers completely.
Utility tunnel seam or construction joint both sides, first polyurea enhancement layer with waterproofing membrane's coincidence length is not less than 300mm, the width of butyl sticky tape is not less than 100mm.
Waterproof construction of reentrant corner department includes the third polyurea dope layer of spraying in utility tunnel reentrant corner department, covers and establishes polyester non-woven fabrics and spraying on the third polyurea dope layer are in fourth polyurea dope layer on the polyester non-woven fabrics.
Waterproof construction of external corner department includes that the spraying is established at the fifth polyurea dope layer of utility tunnel external corner department, is covered polyester non-woven fabrics and spraying on the fifth polyurea dope layer are in sixth polyurea dope layer on the polyester non-woven fabrics.
The planting top plate waterproof structure comprises a seventh polyurea coating layer arranged on a planting top plate, a paper tire asphalt felt layer laid on the seventh polyurea coating layer, a fine stone concrete layer located on the paper tire asphalt felt layer, a drainage plate layer arranged on the fine stone concrete layer and a polyester non-woven fabric layer arranged on the drainage plate layer, wherein the drainage plate layer is formed by splicing a plurality of drainage plates, and the convex surface of the drainage plate layer faces towards the polyester non-woven fabric layer.
Pipeline seam waterproof construction establishes the extension sleeve outside the pipe sleeve including the cover, extension sleeve's one end welding is in on the ring flange of pipeline sleeve, gap intussuseption between ring flange and the utility tunnel is filled with polysulphide and glues, on the surface of ring flange and be close to on the extension sleeve of ring flange and the outer wall of utility tunnel cover up and be equipped with the eight polyurea enhancement layer that the one deck is continuous, the outer spraying of eighth polyurea enhancement layer has the ninth polyurea dope layer, the enhancement layer is scribbled to the eighth polyurea includes that eighth polyurea dope layer and lining establish the intraformational non-woven fabrics at eighth polyurea dope layer.
The tube surface of the elongated sleeve covered by the eighth polyurea reinforcing layer is painted with a seal primer.
The second purpose of the invention is realized by the following steps: a construction process of a waterproof structure of a comprehensive pipe rack comprises a construction process of a waterproof structure at the edge of a coiled material, a construction process of a waterproof structure at a female corner, a construction process of a waterproof structure at a male corner, a construction process of a waterproof structure at a planting top plate and a construction process of a waterproof structure at a pipeline seam between the comprehensive pipe rack and a pipeline sleeve;
the construction process of the waterproof structure at the edge of the coiled material comprises the following steps:
s1-1, filling polysulfide glue in joints or construction joints of the comprehensive pipe gallery;
s1-2, after filling polysulfide glue, covering a first polyurea enhancement layer at the joint or construction joint of the comprehensive pipe gallery, wherein the first polyurea enhancement layer comprises a first polyurea coating layer and non-woven fabrics lined in the first polyurea coating layer;
s1-3, paving a waterproof coiled material on the first polyurea enhancement layer, enabling the waterproof coiled material to cover the joint or construction joint of the comprehensive pipe gallery, and enabling the edge of the first polyurea coating layer to exceed the edge of the waterproof coiled material; the waterproof roll is a high-molecular self-adhesive waterproof roll;
s1-4, fixing the edge of the waterproof roll on a first polyurea reinforcing layer by using butyl adhesive tape;
s1-5, spraying polyurea coating on the waterproof coiled material to form a second polyurea coating layer, and enabling the second polyurea coating layer to completely cover the first polyurea coating layer, the waterproof coiled material and the butyl adhesive tape, so that construction of a waterproof structure at the edge of the coiled material is completed;
the construction process of the waterproof structure at the internal corner comprises the following steps:
s2-1, spraying polyurea coatings on the internal corner and two sides of the internal corner of the comprehensive pipe gallery to form a third polyurea coating layer;
s2-2, covering a layer of polyester non-woven fabric on the third polyurea coating layer;
s2-3, spraying a layer of polyurea coating on the polyester non-woven fabric to enable the polyester non-woven fabric to be adhered to the third polyurea enhancement layer, and finishing the construction of the waterproof structure at the internal corner;
the construction process of the waterproof structure at the external corner comprises the following steps:
s3-1, spraying polyurea coatings on the external corner and two sides of the external corner of the comprehensive pipe gallery to form a fourth polyurea coating layer;
s3-2, covering a layer of polyester non-woven fabric on the fourth polyurea coating layer;
s3-3, spraying a layer of polyurea coating on the polyester non-woven fabric to enable the polyester non-woven fabric to be adhered to the fourth polyurea coating layer, and finishing the construction of the waterproof structure at the external corner;
the construction process of the waterproof structure at the planting top plate comprises the following steps:
s4-1, spraying polyurea coating on the planting top plate to form a seventh polyurea coating layer;
s4-2, paving a paper base felt on the seventh polyurea coating layer to form a paper base felt layer;
s4-3, paving fine stone concrete on the paper base asphalt felt layer to form a fine stone concrete layer;
s4-4, paving a waterproof board on the fine stone concrete layer, and enabling the concave surface of the waterproof board to face the fine stone concrete layer to form a drainage board layer;
s4-5, paving polyester non-woven fabrics on the drainage plate layer to form a water filtering layer, namely completing the construction of the waterproof structure at the planting top plate;
the construction process of the waterproof structure of the pipeline seam comprises the following steps:
s5-1, sleeving a lengthened sleeve outside the pipeline sleeve, and welding one end of the lengthened sleeve with a flange plate on the pipeline sleeve;
s5-2, filling polysulfide glue in a gap between the flange plate and the comprehensive pipe gallery;
s5-3, covering a continuous eighth polyurea reinforcing layer on the surface of the flange plate, the outer wall of the lengthened sleeve close to the flange plate and the outer wall of the comprehensive pipe rack, wherein the eighth polyurea reinforcing layer comprises an eighth polyurea coating layer and non-woven fabrics lined in the eighth polyurea coating layer;
s5-4, spraying polyurea coating on the eighth polyurea enhancement layer to form a ninth polyurea coating layer, namely finishing the construction of the waterproof structure of the pipeline joint;
the tube surface of the elongated sleeve covered by the eighth polyurea reinforcing layer is painted with a seal primer.
The waterproof structure has the advantages of simple construction process, easy operation, excellent physical property of the manufactured waterproof layer, good strength, high elongation and long waterproof service life. The selected spraying coating is fast in curing and excellent in waterproof and anticorrosion properties, so that the construction of the waterproof structure is not limited by temperature and humidity. The invention can effectively solve the problem of water leakage from the waterproof position, the positive and negative corners, the planting top plate and the pipeline seam of the coiled material of the comprehensive pipe rack into the comprehensive pipe rack, and can effectively prevent pipelines and equipment in the comprehensive pipe rack from being affected with damp.
Drawings
Fig. 1 is a schematic diagram of a waterproof structure of a roll.
Fig. 2 is a schematic view of a waterproof structure at an external corner.
Fig. 3 is a schematic view of a waterproof structure at a reentrant corner.
Fig. 4 is a schematic view of a waterproof structure at a planting top plate.
Fig. 5 is a schematic view of a waterproof structure of a pipe joint.
In the figure: 1. a comprehensive pipe gallery; 2. a fifth polyurea coating layer; 3. a third polyurea coating layer; 6. butyl tape; 7. A second polyurea coating layer; 8. waterproof coiled materials; 9. a first polyurea reinforcing layer; 10. a sixth polyurea coating layer; 11. a polyester nonwoven fabric; 12. a fourth polyurea coating layer; 14. a seventh polyurea coating layer; 15. a paper base felt layer; 16. a fine stone concrete layer; 17. a drainage plate layer; 18. filtering a water layer; 20. an eighth polyurea reinforcement layer; 21. a ninth polyurea coating layer; 22. a pipe sleeve; 23. the sleeve is lengthened.
Detailed Description
Example 1: a waterproof structure of a comprehensive pipe rack.
The waterproof structure comprises a coiled material waterproof structure, a waterproof structure at an internal corner, a waterproof structure at a planting top plate and a waterproof structure at a pipeline seam between the comprehensive pipe rack 1 and the pipeline sleeve 22.
Coiled material waterproof construction is including filling polysulfide glue in utility tunnel seam or construction joint, first polyurea enhancement layer, waterproofing membrane 8 and second polyurea dope layer 7, and wherein first polyurea enhancement layer covers establishes at utility tunnel seam department or construction joint department, and first polyurea enhancement layer includes first polyurea dope layer and the lining establishes the intraformational non-woven fabrics of first polyurea dope, and figure 1 is the structural schematic diagram of coiled material waterproof construction setting at 1 seam department of utility tunnel. Waterproofing membrane 8 in this embodiment is the polymer self-adhesive waterproofing membrane of market sales, and the edge of first polyurea enhancement layer 9 surpasss waterproofing membrane 8's edge, and waterproofing membrane 8's edge is fixed on first polyurea enhancement layer 9 through butyl adhesive tape 6 is pasted, and second polyurea coating layer 7 covers first polyurea enhancement layer 9, waterproofing membrane 9 and butyl adhesive tape 6 completely. In this embodiment, the coincidence length of the first polyurea enhancement layer 9 and waterproofing membrane 8 of utility tunnel 1 seam or construction seam both sides is not less than 300mm, and the width of butyl adhesive tape 6 is not less than 100mm to promote coiled material waterproof construction's waterproof performance, prevent that water from entering into in utility tunnel 1 through waterproofing membrane 8's seam crossing.
As shown in fig. 3, the waterproof structure at the internal corner comprises a third polyurea coating layer 3, a polyester non-woven fabric 11 and a fourth polyurea coating layer 12, the third polyurea coating layer 3 is sprayed at the internal corner of the utility tunnel, the polyester non-woven fabric 11 of the waterproof structure at the internal corner is covered on the third polyurea coating layer 3, and the fourth polyurea coating layer 12 is sprayed on the polyester non-woven fabric 11 to increase the elongation and strength of the waterproof structure. The width of the third polyurea coating layer 3 on the utility tunnel 1 at the two sides of the internal corner is 100mm, and the thickness is 1mm.
As shown in fig. 2, the waterproof structure at the external corner comprises a fifth polyurea coating layer 2 sprayed at the external corner of the utility tunnel 1, a polyester non-woven fabric 11 and a sixth polyurea coating layer 10 which are coated on the fifth polyurea coating layer 2, and the sixth polyurea coating layer 10 is sprayed on the polyester non-woven fabric 11 at the external corner of the utility tunnel 1. The width of the fifth polyurea coating layer 2 on the comprehensive pipe rack 1 on the two sides of the external corner is 100mm, and the thickness is 1mm.
As shown in fig. 4, the waterproof structure at the planting top plate comprises a seventh polyurea coating layer 14 arranged on the planting top plate, a paper-based asphalt felt layer 15 laid on the seventh polyurea coating layer 14, a fine stone concrete layer 16 arranged on the paper-based asphalt felt layer 15, a drainage plate layer 17 arranged on the fine stone concrete layer 16, and a polyester non-woven fabric layer arranged on the drainage plate layer 17, wherein the polyester non-woven fabric layer plays a role of water filtration and is also a water filtration layer 18. The paper base felt layer 15 is formed by laying commercially available paper base felts. The fine stone concrete layer 16 is formed by casting C20 fine stone concrete, and has a thickness of 50mm. The drainage board layer 17 is formed by laying a commercially available ordinary drainage board, and the convex surface of the drainage board faces the polyester non-woven fabric layer side, that is, the side facing the water filtration layer 18.
As shown in fig. 5, the waterproof structure of the pipeline joint comprises a lengthened sleeve 23 sleeved outside the pipeline sleeve 22, one end of the lengthened sleeve 23 is welded on a flange plate outside the pipeline sleeve 22, polysulfide glue is filled in a gap between the flange plate and the utility tunnel, a continuous eighth polyurea reinforcing layer 20 is arranged on the outer surface of the flange plate of the pipeline sleeve 22, the outer wall of the lengthened sleeve 23 close to the flange plate and the outer wall of the utility tunnel 1, and a ninth polyurea coating layer 21 is sprayed outside the eighth polyurea reinforcing layer 20. The eighth polyurea coating enhanced layer 20 in this embodiment includes an eighth polyurea coating layer and a non-woven fabric lined in the eighth polyurea coating layer to improve the strength and ductility of the waterproof structure. In the present invention, the pipe surface of the elongated sleeve 23 covered with the eighth polyurea reinforcing layer 20 is painted with a primer sealer. When the lengthened sleeve 23 is a metal pipeline, the outer wall of the lengthened sleeve needs to be coated with seal primer after rust removal; when the extension sleeve 23 is a plastic pipe, it needs to be lightly polished by fine sand paper, and then the seal primer is coated after polishing.
Example 2: a construction process of a waterproof structure of a comprehensive pipe gallery.
The construction process of the waterproof structure of the utility tunnel 1 generally mainly comprises: the construction process of the waterproof structure at the edge of the coiled material, the construction process of the waterproof structure at the internal corner, the construction process of the waterproof structure at the external corner, the construction process of the waterproof structure at the planting top plate and the construction process of the waterproof structure at the pipeline seam between the comprehensive pipe rack and the pipeline sleeve.
The construction process of the waterproof structure at the edge of the coiled material comprises the following steps:
b1-1, cleaning the inside and the outside of the joint or construction joint of the comprehensive pipe gallery 1, and filling polysulfide glue in the joint;
b1-2, after the polysulfide glue is filled, covering a first polyurea reinforcing layer 9 at the joint or construction joint position of the comprehensive pipe gallery 1, wherein the joint or construction joint is covered by the first polyurea reinforcing layer 9, and the pipe gallery walls on two sides of the joint or construction joint are covered; the first polyurea enhancement layer 9 comprises a first polyurea coating layer and non-woven fabrics lined in the first polyurea coating layer, and the non-woven fabrics can improve the waterproofness of the waterproof structure, increase the ductility of the waterproof structure and prolong the service life of the waterproof structure;
b1-3, paving a waterproof coiled material 8 on the first polyurea enhancement layer 9, enabling the waterproof coiled material 8 to cover the joint or construction joint of the comprehensive pipe gallery, and enabling the edge of the first polyurea coating layer 9 to exceed the edge of the waterproof coiled material 8, wherein the overlapping length of the first polyurea enhancement layer 9 and the waterproof coiled material 8 is not less than 300mm in the embodiment;
b1-4, fixing the edge of the waterproof roll 8 on the first polyurea reinforced layer 9 by using a butyl tape 6, wherein the width of the butyl tape 6 in the embodiment cannot be less than 100mm;
and B1-5, finally spraying polyurea coating on the waterproof coiled material, forming a second polyurea coating layer 7 after the polyurea coating is solidified, and completely covering the first polyurea coating layer, the waterproof coiled material 8 and the butyl adhesive tape 6 by the second polyurea coating layer 7 during spraying, so that the construction of the edge waterproof structure of the coiled material is completed.
The construction process of the waterproof structure at the internal corner comprises the following steps:
b2-1, cleaning the internal corner and two sides of the internal corner of the comprehensive pipe gallery 1, spraying polyurea coating on the external walls of the comprehensive pipe gallery 1 at the internal corner and two sides of the internal corner, and forming a third polyurea coating layer 3 after the polyurea coating is solidified;
b2-2, trimming a polyester non-woven fabric 11 with a proper size according to the size of the third polyurea coating layer 3, and covering the polyester non-woven fabric 11 on the third polyurea coating layer 3;
and B2-3, spraying a layer of polyurea coating on the coated polyester non-woven fabric 11 to enable the polyester non-woven fabric 11 to be adhered to the third polyurea enhancement layer 3, and thus finishing the construction of the waterproof structure at the internal corner of the comprehensive pipe gallery 1.
The construction process of the waterproof structure at the external corner comprises the following steps:
b3-1, cleaning the external corner and two sides of the external corner of the comprehensive pipe gallery 1, spraying polyurea coating on the external corner and the outer walls of the comprehensive pipe galleries 1 on two sides of the external corner, and forming a fourth polyurea coating layer 12 after the polyurea coating is solidified;
b3-2, trimming the polyester non-woven fabric 11 with a proper size according to the size of the fourth polyurea coating layer 12, and covering the polyester non-woven fabric 11 on the fourth polyurea coating layer 12;
and B3-3, spraying a layer of polyurea coating on the coated polyester non-woven fabric 11, so that the polyester non-woven fabric 11 is adhered to the fourth polyurea enhancement layer 12, and the construction of the waterproof structure at the external corner of the comprehensive pipe rack 1 is completed.
The construction process of the waterproof structure at the planting top plate comprises the following steps:
b4-1, cleaning the surface of the planting top plate on the comprehensive pipe rack 1, spraying polyurea coating on the surface of the cleaned planting top plate, and forming a seventh polyurea coating layer 14 after the polyurea coating is solidified;
b4-2, paving a paper base felt on the seventh polyurea coating layer 14 to form a paper base felt layer 15; the paper base felt in the step is a common paper base felt sold on the market;
b4-3, paving a layer of C20 fine stone concrete with the thickness of 50mm on the paper tire felt layer 15 to form a fine stone concrete layer 16;
b4-4, paving a waterproof board on the fine stone concrete, and enabling the concave surface of the waterproof board to face to one side of the fine stone concrete layer 16 to form a drainage board layer 17;
b4-5, paving a polyester non-woven fabric on the drainage board layer 17 to form a water filtering layer 18 capable of filtering water, namely completing the construction of the waterproof structure at the planting top plate; the polyester non-woven fabric used in the step is a polyester non-woven fabric sold on the market.
The construction process of the waterproof structure of the pipeline seam comprises the following steps:
b5-1, sleeving a lengthened sleeve 23 outside the pipeline sleeve 22 penetrating the wall of the comprehensive pipe gallery 1, and welding one end of the lengthened sleeve 23 with a flange plate on the pipeline sleeve 22;
b5-2, filling polysulfide glue in a gap between the flange plate on the pipeline sleeve 22 and the comprehensive pipe gallery;
b5-3, covering a continuous eighth polyurea reinforcing layer 20 on the surface of the flange plate, the outer wall of the sleeving pipe 23 close to the flange plate and the outer wall of the comprehensive pipe rack 1, wherein the eighth polyurea reinforcing layer 20 comprises an eighth polyurea coating layer and non-woven fabrics lined in the eighth polyurea coating layer;
and B5-4, spraying polyurea coating on the eighth polyurea reinforcing layer 20 to form a ninth polyurea coating layer, namely finishing the construction of the waterproof structure of the pipeline seam.
The present invention coats a seal primer on the tube surface of the elongated sleeve 23 covered with the eighth polyurea reinforcing layer 20. When the lengthened sleeve 23 is a metal pipeline, the outer wall of the lengthened sleeve needs to be coated with seal primer after rust removal; when the extension sleeve 23 is a plastic pipe, it needs to be lightly polished by fine sand paper, and then the seal primer is coated after polishing.
Claims (10)
1. The utility model provides a waterproof construction of utility tunnel, characterized by, including coiled material waterproof construction, reentrant corner department waterproof construction, external corner department waterproof construction, plant roof department waterproof construction and lie in the waterproof construction of pipeline seam between utility tunnel and the pipe-line sleeve, wherein coiled material waterproof construction is including packing polysulfide glue in utility tunnel seam or construction seam, cover the first polyurea enhancement layer of establishing at utility tunnel seam or construction seam department, lay waterproof roll on the first polyurea enhancement layer and the second polyurea coating layer of spraying on waterproof roll; the first polyurea enhancement layer comprises a first polyurea coating layer and a non-woven fabric arranged in the first polyurea coating layer in a lining mode.
2. The utility model provides a waterproof construction of utility tunnel of claim 1, characterized by, waterproofing membrane is polymer self-adhesive waterproofing membrane, the edge of first polyurea enhancement layer surpasss waterproofing membrane's edge, waterproofing membrane's edge through butyl tape paste fix on first polyurea enhancement layer, second polyurea coating layer is with first polyurea enhancement layer, waterproofing membrane and butyl tape cover completely.
3. The utility tunnel waterproof construction of claim 1, wherein the overlapping length of the first polyurea reinforcing layer and the waterproofing membrane is not less than 300mm and the width of the butyl tape is not less than 100mm on both sides of the utility tunnel joint or construction joint.
4. The waterproof structure of utility tunnel of claim 1, characterized in that, reentrant corner department waterproof construction includes the third polyurea coating layer of spraying in utility tunnel reentrant corner department, cover the polyester non-woven fabrics on establishing in the third polyurea coating layer and spray the fourth polyurea coating layer on the polyester non-woven fabrics.
5. The waterproof structure of the utility tunnel according to claim 1, wherein the waterproof structure at the external corner comprises a fifth polyurea coating layer sprayed on the external corner of the utility tunnel, a polyester non-woven fabric coated on the fifth polyurea coating layer, and a sixth polyurea coating layer sprayed on the polyester non-woven fabric.
6. The waterproof structure of the utility tunnel according to claim 1, wherein the waterproof structure at the planting top plate comprises a seventh polyurea coating layer arranged on the planting top plate, a paper tire linoleum layer laid on the seventh polyurea coating layer, a fine stone concrete layer positioned on the paper tire linoleum layer, a drainage plate layer arranged on the fine stone concrete layer, and a polyester non-woven fabric layer arranged on the drainage plate layer, wherein the drainage plate layer is formed by splicing a plurality of drainage plates, and the convex surface of the drainage plate layer faces the polyester non-woven fabric layer.
7. The utility model provides a utility tunnel's waterproof construction, characterized by, pipeline seam waterproof construction includes that the cover establishes the extension sleeve outside the pipe sleeve, extension sleeve's one end welding is in on the pipe sleeve's ring flange, the gap intussuseption between ring flange and the utility tunnel is filled with polysulfide glue, on the surface of ring flange and be close to on the extension sleeve of ring flange and the outer wall of utility tunnel cover and be equipped with the continuous eighth polyurea enhancement layer of one deck, the outer spraying of eighth polyurea enhancement layer has the ninth polyurea dope layer, the enhancement layer is scribbled to eighth polyurea includes the eighth polyurea dope layer and the lining establishes the intraformational non-woven fabrics in eighth polyurea dope layer.
8. The waterproof structure of a utility tunnel according to claim 7, wherein the pipe surface of the elongated sleeves covered by the eighth polyurea reinforcing layer is painted with a sealing primer.
9. A construction process of a waterproof structure of a comprehensive pipe rack is characterized by comprising a construction process of a waterproof structure at the edge of a coiled material, a construction process of a waterproof structure at a female corner, a construction process of a waterproof structure at a male corner, a construction process of a waterproof structure at a planting top plate and a construction process of a waterproof structure at a pipeline seam between the comprehensive pipe rack and a pipeline sleeve;
the construction process of the waterproof structure at the edge of the coiled material comprises the following steps:
s1-1, filling polysulfide glue in joints or construction joints of the comprehensive pipe gallery;
s1-2, after the polysulfide glue is filled, covering a first polyurea enhancement layer at the joint or construction joint of the comprehensive pipe gallery, wherein the first polyurea enhancement layer comprises a first polyurea coating layer and non-woven fabrics lined in the first polyurea coating layer;
s1-3, paving a waterproof coiled material on the first polyurea enhancement layer, enabling the waterproof coiled material to cover the joint or construction joint of the comprehensive pipe gallery, and enabling the edge of the first polyurea coating layer to exceed the edge of the waterproof coiled material; the waterproof roll is a high-molecular self-adhesive waterproof roll;
s1-4, fixing the edge of the waterproof roll on a first polyurea reinforced layer by using a butyl adhesive tape;
s1-5, spraying polyurea coating on the waterproof coiled material to form a second polyurea coating layer, and enabling the second polyurea coating layer to completely cover the first polyurea coating layer, the waterproof coiled material and the butyl adhesive tape, so that construction of a waterproof structure at the edge of the coiled material is completed;
the construction process of the waterproof structure at the internal corner comprises the following steps:
s2-1, spraying polyurea coatings on the internal corner and two sides of the internal corner of the comprehensive pipe gallery to form a third polyurea coating layer;
s2-2, covering a layer of polyester non-woven fabric on the third polyurea coating layer;
s2-3, spraying a layer of polyurea coating on the polyester non-woven fabric to enable the polyester non-woven fabric to be adhered to the third polyurea enhancement layer, and finishing the construction of the waterproof structure at the internal corner;
the construction process of the waterproof structure at the external corner comprises the following steps:
s3-1, spraying polyurea coatings on the external corner and two sides of the external corner of the comprehensive pipe gallery to form a fourth polyurea coating layer;
s3-2, covering a layer of polyester non-woven fabric on the fourth polyurea coating layer;
s3-3, spraying a layer of polyurea coating on the polyester non-woven fabric to enable the polyester non-woven fabric to be adhered to the fourth polyurea coating layer, and finishing the construction of the waterproof structure at the external corner;
the construction process of the waterproof structure at the planting top plate comprises the following steps:
s4-1, spraying polyurea coating on the planting top plate to form a seventh polyurea coating layer;
s4-2, paving a paper base felt on the seventh polyurea coating layer to form a paper base felt layer;
s4-3, paving fine stone concrete on the paper base asphalt felt layer to form a fine stone concrete layer;
s4-4, paving a waterproof board on the fine stone concrete layer, and enabling the concave surface of the waterproof board to face the fine stone concrete layer to form a drainage board layer;
s4-5, paving a polyester non-woven fabric on the drainage plate layer to form a water filtering layer, namely completing the construction of the waterproof structure at the planting top plate;
the construction process of the waterproof structure of the pipeline seam comprises the following steps:
s5-1, sleeving a lengthened sleeve outside the pipeline sleeve, and welding one end of the lengthened sleeve with a flange plate on the pipeline sleeve;
s5-2, filling polysulfide glue in a gap between the flange plate and the comprehensive pipe gallery;
s5-3, covering a continuous eighth polyurea reinforcing layer on the surface of the flange plate, the outer wall of the lengthened sleeve close to the flange plate and the outer wall of the comprehensive pipe gallery, wherein the eighth polyurea reinforcing layer comprises an eighth polyurea coating layer and non-woven fabrics lined in the eighth polyurea coating layer;
and S5-4, spraying polyurea coating on the eighth polyurea enhancement layer to form a ninth polyurea coating layer, namely finishing the construction of the waterproof structure of the pipeline joint.
10. The construction process of the waterproof structure of the utility tunnel according to claim 9, wherein the pipe surface of the elongated sleeves covered by the eighth polyurea reinforcing layer is painted with a sealing primer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211283129.9A CN115387386A (en) | 2022-10-20 | 2022-10-20 | Waterproof structure and construction process of comprehensive pipe rack |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211283129.9A CN115387386A (en) | 2022-10-20 | 2022-10-20 | Waterproof structure and construction process of comprehensive pipe rack |
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