CN108643230B - Outer waterproof structure of underground comprehensive pipe rack and construction method - Google Patents
Outer waterproof structure of underground comprehensive pipe rack and construction method Download PDFInfo
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- CN108643230B CN108643230B CN201810599903.4A CN201810599903A CN108643230B CN 108643230 B CN108643230 B CN 108643230B CN 201810599903 A CN201810599903 A CN 201810599903A CN 108643230 B CN108643230 B CN 108643230B
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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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- 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
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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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Abstract
The waterproof structure consists of a bottom plate waterproof layer, a side wall waterproof layer and a top plate waterproof layer, wherein the bottom plate waterproof layer is formed by pre-paving high polymer waterproof coiled materials, and the coiled materials are directly bonded with post-pouring structure concrete mixtures; the side wall waterproof layers are double-sided wet-laid polymer waterproof coiled materials and single-sided wet-laid polymer waterproof coiled materials, the first waterproof coiled materials are bonded with the base layer by cement slurry, self-adhesive lap joints are arranged between the coiled materials, and brick wall protection layers are arranged on the outer sides of the side wall waterproof layers; the roof waterproof layer is two-sided wet-laid polymer waterproof coiled material and single-sided wet-laid polymer waterproof coiled material, the cement slurry of the first waterproof coiled material is bonded with the base layer, self-adhesion lap joint is arranged between coiled materials, and a fine stone concrete protective layer is arranged on the waterproof layer. The invention improves the outer waterproof capability of the underground comprehensive pipe rack structure, is simple and convenient to operate and quick to construct, and is suitable for the outer waterproof construction of the concrete structure of the underground structural engineering such as the comprehensive pipe rack, the box culvert and the like.
Description
Technical Field
The invention relates to the technical field of underground comprehensive pipe gallery construction, in particular to an external waterproof structure of an underground comprehensive pipe gallery and a construction method.
Background
Along with the continuous growth of national economy and the development of self economy of cities in China, the utility tunnel has become a new vitality army for national investment construction, and the purpose of constructing the utility tunnel is to incorporate various pipelines and cables required by the cities into the utility tunnel for unified management. The utility tunnel belongs to underground structure engineering, puts forward higher requirement to structural waterproof.
Currently, according to waterproof specifications and waterproof atlas, certain restrictions are placed on waterproof design and development thereof. Along with the rapid development of the waterproof industry, waterproof coiled materials are various in types, rapid in technical innovation, and in order to enable novel materials to be applied and fully exert the characteristics of the waterproof coiled materials, a novel external waterproof system and a novel construction method are researched by combining the technical characteristics of comprehensive pipe rack construction.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility tunnel outer waterproof structure and the construction method are provided, wherein the construction is efficient, and the waterproof effect is good. The invention discloses an external waterproof structure of an underground comprehensive pipe gallery and a construction method.
An outer waterproof structure of an underground utility tunnel consists of a bottom plate waterproof layer, a side wall waterproof layer and a top plate waterproof layer.
The waterproof layer of the bottom plate is a layer of pre-paved high polymer waterproof coiled material, the coiled material is directly bonded with the concrete mixture of the post-pouring structure, and an additional waterproof layer is arranged at the bottom chamfer position of the side wall.
The side wall waterproof layer is a double-sided wet-laid polymer waterproof coiled material and a single-sided wet-laid polymer waterproof coiled material, the first coiled material is bonded with the base layer by cement slurry, self-adhesive lap joints are arranged between the coiled materials, and the second coiled material is directly bonded with the first coiled material. And a waterproof reinforcing layer is arranged at the outer side of the side wall horizontal construction joint, a top plate waterproof material is lapped with the side wall waterproof material, a double-sided waterproof coiled material lapping adhesive tape is arranged in the middle for bonding, the coiled material end is sealed by adopting sealing paste, and a brick wall protection layer is arranged at the outer side of the side wall waterproof layer.
The roof waterproof layer is a double-sided wet-laid polymer waterproof coiled material and a single-sided wet-laid polymer waterproof coiled material, the first coiled material is bonded with the base layer by cement slurry, self-adhesive lap joints are arranged between the coiled materials, and the second coiled material is directly bonded with the first coiled material. And a fine stone concrete protective layer is arranged on the waterproof layer.
The side wall waterproof layer and the top plate waterproof layer are provided with waterproof reinforcing layers at the circumferential deformation joints.
The elongation at break of the coiled material film is more than or equal to 400%, and the width of 100mm is reserved on one side of the long side of the coiled material for lap joint of the long side of the coiled material.
The maximum tensile elongation of the wet-laid high-polymer waterproof coiled material (single-sided and double-sided) is more than or equal to 150%, and 100mm width is reserved on one side of the long side of the coiled material for lap joint of the long side of the coiled material.
The invention achieves the aim through the following technical scheme:
the construction method of the waterproof structure outside the underground comprehensive pipe rack comprises the following steps:
a. and (5) measuring and lofting, and determining the side line of the bottom plate of the pipe gallery.
b. Building a bottom plate brick mould: MU10 brick walls are built by M7.5 mortar, and the wall thickness is 120mm or 240mm. The elevation of the brick wall top is higher than that of the 3-layer brick above the bottom plate construction joint. And after the brick wall is built, the structural cushion layer and the internal corner of the brick wall are made into chamfer angles with the width of 50mm by adopting cement mortar.
c. And (3) constructing a waterproof layer of the bottom plate: the coiled material adopts pre-paved high polymer waterproof coiled material and adopts an empty paving method for construction. Before the waterproof large-area construction of the base plate, an additional layer of the internal corner is paved, the material of the additional layer is the same as that of the waterproof layer of the base plate, the width of the additional layer is 50cm, and one side of the additional layer is lapped with 25cm. The long side of the waterproof coiled material is paved in the same direction as the structural section. Lap joint of coiled materials: and directly tearing off the reserved film and bonding. The lap width of the coiled material is 70mm (self-adhesive glue), and the allowable deviation is-10 mm. The lap joint dislocation of the short sides of the coiled materials in the same plane is not less than 500mm, and the lap joint of the short sides of the coiled materials is bonded by adopting double-sided waterproof coiled material lap joint adhesive tapes. The lap joint of the waterproof coiled material should be tight, and the phenomenon of infirm lap joint and non-compactness cannot be caused.
d. Waterproof lap joint treatment of the bottom plate and the side wall: after the concrete pouring of the side wall of the pipe gallery and the top plate is completed, the outer brick moulding bed of the bottom plate is removed to 30cm below the construction joint after the concrete strength reaches the design requirement, the waterproof coiled material of the joint of the bottom plate is thrown to clean, and the coiled material which is not bonded with the concrete is cut off. The waterproof layer of the bottom plate and the waterproof layer of the side wall are bonded by double-sided waterproof coiled materials through lap joint adhesive tapes, so that the waterproof coiled materials are firmly and compactly connected, and additional layers are added at the positions of construction joints of the wall.
f. Side wall and roof first waterproof construction: the waterproof coiled material is a double-sided wet-laid high polymer waterproof coiled material by adopting a wet-laid method.
Removing dust and sundries on the surface of the base layer; the dried base surface is fully wetted by pre-spraying water.
Preparing cement paste: the water cement ratio is 0.35 to 0.4 (weight ratio), and the putty can be used after being stirred uniformly by an electric stirrer.
Plastering cement paste: the thickness of the base layer depends on the leveling condition of the base layer, and compaction and trowelling should be paid attention to during paving. At the internal corners, fillets should be smeared. The width of the spread cement paste is 100-300 mm wider than the long side and the short side of the coiled material, and the spread cement paste is carefully ensured to be smooth in the spreading process.
And removing the isolating film on the lower surface of the waterproof coiled material.
And (3) coiled material additional layer construction: special parts such as the inner and outer corners, the wall bushing and the like are required to be coiled material additional layers, and the width is 500mm.
Paving waterproof coiled materials: and (5) spreading the waterproof coiled material on the cement paste. The coiled material and the adjacent coiled material are in self-adhesion lap joint, the isolation film at the lap joint part of the upper surface of the lower coiled material and the isolation film at the lower surface of the upper coiled material are removed, and then the lap joint is compact.
Beating the upper surface of the coiled material, and extracting slurry: beating the upper surface of the coiled material by using a wood trowel or a rubber plate; and (3) lifting the slurry, and discharging air on the lower surface of the coiled material to enable the coiled material to be closely attached to the cement slurry.
Overlap joint: the upper and lower lap joints are adopted, the lap joint width is 70mm, and the allowable deviation is-10 mm. The lap joint stagger of the short sides of the coiled materials in the same layer is not less than 500mm.
The lap joint part must be cleaned and cleaned, no pollutant such as water or mortar exists, the lap joint part of the coiled material can be cleaned by rag firstly, and then the isolating film is uncovered for lap joint.
When the waterproof coiled material is paved on the vertical wall, the closing-in position of the coiled material should be sealed temporarily (can be sealed by adhesive tape or thickened cement paste) so as to prevent water at the closing-in position of the vertical wall from being scattered too quickly.
The external protection external pasting method is to spread the coiled material, and the plane is spread firstly and then the vertical surface is spread when spreading.
When the concrete structure is completed and the elevation coiled material is paved, the coiled material upper layer of the coiled material at the joint part covers the coiled material lower layer.
g. Second waterproof construction of side wall and roof (full sticking method)
After the construction of the first waterproof coiled material is finished, paving the second waterproof coiled material, wherein the second waterproof coiled material is a single-sided wet-paved high polymer waterproof coiled material, and the lap joint width of the coiled material is the same as that of the first coiled material. When the long sides of the upper coiled material and the lower coiled material are overlapped, the long sides of the upper coiled material and the lower coiled material are staggered, the width is not smaller than 1/3, and the short sides of the upper coiled material and the lower coiled material are staggered, and the width is not smaller than 500mm.
The second waterproof coiled material is constructed, the upper surface isolation film of the first waterproof coiled material and the lower surface isolation film of the second waterproof coiled material are removed, the second coiled material is paved on the first coiled material, the large-area coiled material is exhausted and compacted by a compression roller, the lap joint part is rolled, the front and the outer rolling are forcefully carried out, the air is exhausted, and the adhesion is firm. And during lapping, the lapping control line is aligned to ensure the lap joint quality of the coiled material. When a large-area coiled material is paved, the isolating film at the lap joint part of the back of the coiled material is not required to be torn off, so that the adhesive layer is not polluted or the mistaken adhesion is avoided.
h. And (3) a side wall waterproof protective layer: MU10 brick walls are built by M7.5 mortar, and the wall thickness is 120mm or 240mm.
i. Roof waterproof protection layer: adopting a fine stone concrete protective layer with the strength grade being more than or equal to C20.
In the construction process, the bottom plate is made of post-cast concrete, so that the bottom plate adopts pre-paved high polymer waterproof coiled materials, and the coiled materials are directly bonded with post-cast structure concrete mixtures to form a whole. When the foundation is unevenly settled, the coiled material can effectively prevent the uneven settlement from causing waterproof damage, and the waterproof effect is not affected. The side wall top plate is constructed with the waterproof coiled material after the construction is finished, so that the waterproof coiled material is wet-laid with the high polymer waterproof coiled material, the waterproof coiled material has good flexibility, cement paste is adopted to bond with a base layer, the waterproof coiled material can be tightly attached to the structure, and the waterproof construction quality is improved.
The invention has the following effective effects: by adopting the construction of the outer waterproof structure, the material performance is fully exerted. The waterproof system has high construction efficiency, improves the structural waterproof effect, and is suitable for waterproof construction of various underground structural projects.
Drawings
FIG. 1 is a schematic view of an outer waterproof structure of a utility tunnel in the present invention;
FIG. 2 is a schematic view of a waterproof overlap joint between a bottom plate and a side wall in the invention.
In the figure: 1-concrete cushion layer, 2-pre-paved high polymer waterproof roll, 3-piping structure, 4-brick wall waterproof layer, 5-single-sided wet paved high polymer waterproof roll, 6-double-sided wet paved high polymer waterproof roll, 7-fine stone concrete waterproof layer, 8-double-sided waterproof roll overlap joint adhesive tape, 9-sealing material, 10-brick molding bed and 11-waterproof reinforcing layer.
Detailed Description
The invention is further illustrated by the following specific examples.
Example 1
An outer waterproof structure of an underground utility tunnel comprises a bottom plate waterproof layer, a side wall waterproof layer and a top plate waterproof layer.
The waterproof layer of the bottom plate is a layer of pre-paved high polymer waterproof coiled material with the thickness of 1.2mm, the coiled material is directly bonded with the post-pouring structure concrete mixture, and an additional waterproof layer is arranged at the bottom chamfer position of the side wall.
The side wall waterproof layer is a 1.5mm thick double-sided wet-laid high polymer waterproof roll material and a 1.5mm thick single-sided wet-laid high polymer waterproof roll material, the first layer of roll material is bonded with the base layer by cement slurry, self-adhesive lap joints are arranged between the roll materials, and the second layer of roll material is directly bonded with the first layer of roll material. And a waterproof reinforcing layer is arranged on the outer side of the side wall horizontal construction joint, a top plate waterproof material is lapped with the side wall waterproof material, a double-sided waterproof coiled material lapping adhesive tape (30 mm wide and 1mm thick) is arranged in the middle to be bonded, the end of the coiled material is sealed by adopting sealing paste, an M7.5 mortar MU10 brick wall protective layer is arranged on the outer side of the side wall waterproof layer, and the thickness of the brick wall is 240mm.
The roof waterproof layer is a 1.5mm thick double-sided wet-laid high polymer waterproof roll material and a 1.5mm thick single-sided wet-laid high polymer waterproof roll material, the first layer of roll material is bonded with the base layer by cement slurry, self-adhesive lap joints are arranged between the roll materials, and the second layer of roll material is directly bonded with the first layer of roll material. And a C20 fine stone concrete protective layer with the thickness of 70mm is arranged on the waterproof layer.
The side wall waterproof layer and the top plate waterproof layer are provided with waterproof reinforcing layers at the circumferential deformation joints.
The elongation at break of the coiled material film is more than or equal to 400%, and the width of 100mm is reserved on one side of the long side of the coiled material for lap joint of the long side of the coiled material.
The maximum tensile elongation of the wet-laid high-polymer waterproof coiled material (single-sided and double-sided) is more than or equal to 150%, and 100mm width is reserved on one side of the long side of the coiled material for lap joint of the long side of the coiled material.
The invention achieves the aim through the following technical scheme:
the construction method of the waterproof structure outside the underground comprehensive pipe rack comprises the following steps:
a. and (5) measuring and lofting, and determining the side line of the bottom plate of the pipe gallery.
b. Building a bottom plate brick mould: MU10 brick walls are built by M7.5 mortar, and the wall thickness is 240mm. The elevation of the brick wall top is higher than that of the 3-layer brick above the bottom plate construction joint. And after the brick wall is built, the structural cushion layer and the internal corner of the brick wall are made into chamfer angles with the width of 50mm by adopting cement mortar.
c. And (3) constructing a waterproof layer of the bottom plate: the coiled material adopts a pre-paved high polymer waterproof coiled material with the thickness of 1.2mm, and is constructed by adopting an empty paving method. Before the waterproof large-area construction of the base plate, an additional layer of the internal corner is paved, the material of the additional layer is the same as that of the waterproof layer of the base plate, the width of the additional layer is 50cm, and one side of the additional layer is lapped with 25cm. The long side of the waterproof coiled material is paved in the same direction as the structural section. Lap joint of coiled materials: and directly tearing off the reserved film and bonding. The lap width of the coiled material is 70mm (self-adhesive glue), and the allowable deviation is-10 mm. The lap joint dislocation of the short sides of the coiled materials in the same plane is not less than 500mm, and the lap joint of the short sides of the coiled materials is bonded by double-sided waterproof coiled material lap joint adhesive tapes (30 mm wide and 1mm thick). The lap joint of the waterproof coiled material should be tight, and the phenomenon of infirm lap joint and non-compactness cannot be caused.
d. Waterproof lap joint treatment of the bottom plate and the side wall: after the concrete pouring of the side wall of the pipe gallery and the top plate is completed, the outer brick moulding bed of the bottom plate is removed to 30cm below the construction joint after the concrete strength reaches the design requirement, the waterproof coiled material of the joint of the bottom plate is thrown to clean, and the coiled material which is not bonded with the concrete is cut off. The waterproof layer of the bottom plate and the waterproof layer of the side wall are bonded by double-sided waterproof coiled materials through lap joint adhesive tapes, so that the waterproof coiled materials are firmly and compactly connected, and additional layers are added at the positions of construction joints of the wall.
f. Side wall and roof first waterproof construction: the waterproof coiled material is a double-sided wet-laid high polymer waterproof coiled material by adopting a wet-laid method.
Removing dust and sundries on the surface of the base layer; the dried base surface is fully wetted by pre-spraying water.
Preparing cement paste: the water cement ratio is 0.35 to 0.4 (weight ratio), and the putty can be used after being stirred uniformly by an electric stirrer.
Plastering cement paste: the thickness of the base layer depends on the leveling condition of the base layer, and compaction and trowelling should be paid attention to during paving. At the internal corners, fillets should be smeared. The width of the spread cement paste is 100-300 mm wider than the long side and the short side of the coiled material, and the spread cement paste is carefully ensured to be smooth in the spreading process.
And removing the isolating film on the lower surface of the waterproof coiled material.
And (3) coiled material additional layer construction: special parts such as the inner and outer corners, the wall bushing and the like are required to be coiled material additional layers, and the width is 500mm.
Paving waterproof coiled materials: and (5) spreading the waterproof coiled material on the cement paste. The coiled material and the adjacent coiled material are in self-adhesion lap joint, the isolation film at the lap joint part of the upper surface of the lower coiled material and the isolation film at the lower surface of the upper coiled material are removed, and then the lap joint is compact.
Beating the upper surface of the coiled material, and extracting slurry: beating the upper surface of the coiled material by using a wood trowel or a rubber plate; and (3) lifting the slurry, and discharging air on the lower surface of the coiled material to enable the coiled material to be closely attached to the cement slurry.
Overlap joint: the upper and lower lap joints are adopted, the lap joint width is 70mm, and the allowable deviation is-10 mm. The lap joint stagger of the short sides of the coiled materials in the same layer is not less than 500mm.
The lap joint part must be cleaned and cleaned, no pollutant such as water or mortar exists, the lap joint part of the coiled material can be cleaned by rag firstly, and then the isolating film is uncovered for lap joint.
When the waterproof coiled material is paved on the vertical wall, the closing-in position of the coiled material should be sealed temporarily (can be sealed by adhesive tape or thickened cement paste) so as to prevent water at the closing-in position of the vertical wall from being scattered too quickly.
The external protection external pasting method is to spread the coiled material, and the plane is spread firstly and then the vertical surface is spread when spreading.
When the concrete structure is completed and the elevation coiled material is paved, the coiled material upper layer of the coiled material at the joint part covers the coiled material lower layer.
g. Second waterproof construction of side wall and roof (full sticking method)
After the construction of the first waterproof coiled material is finished, paving the second waterproof coiled material, wherein the second waterproof coiled material is a 1.5mm thick single-sided wet-paved high polymer waterproof coiled material, and the lap joint width of the coiled material is the same as that of the first coiled material. When the long sides of the upper coiled material and the lower coiled material are overlapped, the long sides of the upper coiled material and the lower coiled material are staggered, the width is not smaller than 1/3, and the short sides of the upper coiled material and the lower coiled material are staggered, and the width is not smaller than 500mm.
The second waterproof coiled material is constructed, the upper surface isolation film of the first waterproof coiled material and the lower surface isolation film of the second waterproof coiled material are removed, the second coiled material is paved on the first coiled material, the large-area coiled material is exhausted and compacted by a compression roller, the lap joint part is rolled, the front and the outer rolling are forcefully carried out, the air is exhausted, and the adhesion is firm. And during lapping, the lapping control line is aligned to ensure the lap joint quality of the coiled material. When a large-area coiled material is paved, the isolating film at the lap joint part of the back of the coiled material is not required to be torn off, so that the adhesive layer is not polluted or the mistaken adhesion is avoided.
h. And (3) a side wall waterproof protective layer: MU10 brick walls are built by M7.5 mortar, and the wall thickness is 240mm.
i. Roof waterproof protection layer: a70 mm thick C20 fine stone concrete protective layer was used.
The present invention is not limited to the preferred embodiments, and any simple modification, variation and equivalent structural changes of the above embodiments according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.
Claims (1)
1. The construction method of the waterproof structure outside the underground comprehensive pipe rack is characterized by comprising the following steps of:
a. measuring and lofting, and determining the side line of the bottom plate of the pipe gallery;
b. building a bottom plate brick mould: building an MU10 brick wall by using M7.5 mortar, wherein the wall thickness is 120mm or 240mm, the top standard height of the brick wall is higher than the 3-layer brick above the construction joint of the bottom plate, and after the brick wall is built, the internal corners of the structural cushion layer and the brick wall are made into chamfer angles with the width of 50mm by adopting cement mortar;
c. and (3) constructing a waterproof layer of the bottom plate: the coiled material adopts pre-paved macromolecule waterproof coiled material, adopts the empty paving method to construct, should firstly pave the additional layer of internal corner before the waterproof large-area construction of bottom plate, and additional layer material is with the bottom plate waterproof layer, and additional layer width is 50cm, overlap joint 25cm on one side, and the long limit of waterproofing membrane laying is unanimous with structure section direction, coiled material overlap joint: directly tearing off the reserved film, bonding, wherein the lap width of the coiled material is 70mm, the allowable deviation is-10 mm, the lap dislocation of the short sides of the coiled material in the same plane is not less than 500mm, the lap of the short sides of the coiled material is bonded by adopting a double-sided waterproof coiled material lap adhesive tape, the lap of the waterproof coiled material is tight, and the phenomenon of loose lap and non-compact is not caused;
d. waterproof lap joint treatment of the bottom plate and the side wall: after the concrete pouring of the side wall and the top plate of the pipe gallery is finished, after the concrete strength reaches the design requirement, removing the outer brick moulding bed of the bottom plate to 30cm below the construction joint, throwing the waterproof coiled material of the joint of the bottom plate, cleaning, cutting off coiled materials which are not bonded with the concrete, bonding the waterproof layer of the bottom plate and the waterproof layer of the side wall by adopting double-sided waterproof coiled material lap joint adhesive tapes, ensuring that the waterproof coiled materials are firmly and compactly connected, and adding an additional layer at the position of the construction joint of the wall;
f. side wall and roof first waterproof construction: the waterproof coiled material is a double-sided wet-laid high polymer waterproof coiled material by adopting a wet-laid method;
removing dust and sundries on the surface of the base layer; the dried basal surface is fully wetted by pre-spraying water;
preparing cement paste: taking water ash with a weight ratio of 0.35-0.4, and uniformly stirring the water ash into putty-like materials by an electric stirrer for use;
plastering cement paste: the thickness of the base layer is determined according to the leveling condition of the base layer, compacting and trowelling are needed to be carried out during spreading, round corners are needed to be smeared at the internal corners, the width of spread cement paste is 100-300 mm wider than the length and the short side of the coiled material, and the flatness is needed to be ensured during spreading;
removing the isolating film on the lower surface of the waterproof coiled material;
and (3) coiled material additional layer construction: special parts such as the inner and outer corners, the wall bushing and the like are required to be coiled material additional layers, and the width is 500mm;
paving waterproof coiled materials: spreading the waterproof coiled material on cement paste, wherein the coiled material is in self-adhesion lap joint with the adjacent coiled material, removing the isolation film at the lap joint part of the upper surface of the lower coiled material and the isolation film at the lower surface of the upper coiled material, and then compacting the lap joint;
beating the upper surface of the coiled material, and extracting slurry: beating the upper surface of the coiled material by using a wood trowel or a rubber plate; lifting slurry, and discharging air on the lower surface of the coiled material to enable the coiled material to be closely attached to cement slurry;
overlap joint: the lap joint is adopted up and down, the lap joint width is 70mm, the allowable deviation is-10 mm, the lap joint of the same layer of coiled material is staggered by not less than 500mm;
the lap joint part must be cleaned and cleaned, no pollutant such as water or mortar exists, the lap joint part of the coiled material can be cleaned by rag firstly, and then the isolating film is uncovered for lap joint;
when the waterproof coiled material is paved on the vertical wall, the closing-in position of the coiled material should be sealed temporarily to prevent water at the closing-in position of the vertical wall from being scattered too fast;
the coiled material is paved by an external-protection external-pasting method, and a plane is paved firstly and then a vertical surface is paved during paving;
when the concrete structure is completed and the elevation coiled material is paved, the coiled material upper layer of the coiled material at the joint part covers the coiled material lower layer;
g. second waterproof construction of side wall and top plate:
after the construction of the first waterproof coiled material is finished, paving the second waterproof coiled material, wherein the second waterproof coiled material adopts a single-sided wet-paving high polymer waterproof coiled material, the lap joint width of the coiled material is the same as that of the first coiled material, the long edges of the upper coiled material and the lower coiled material are overlapped and should be staggered, the width is not smaller than 1/3, and the short edges of the upper layer and the lower layer are also staggered, the width is not smaller than 500mm;
the second waterproof coiled material is constructed, the upper surface isolation film of the first waterproof coiled material and the lower surface isolation film of the second waterproof coiled material are removed, the second coiled material is paved on the first coiled material, the large-area coiled material is exhausted and compacted by a compression roller, then the lap joint part is rolled, the forward and outward rolling is carried out by force, the air is exhausted, the adhesion is firm, the lap joint control line is aligned during lap joint, the lap joint quality of the coiled materials is ensured, and the isolation film at the lap joint part on the back of the coiled materials is not required to be removed when the large-area coiled materials are paved so as to avoid pollution to a bonding layer or mistaken adhesion;
h. and (3) a side wall waterproof protective layer: building MU10 brick walls by using M7.5 mortar, wherein the wall thickness is 120mm or 240mm;
i. roof waterproof protection layer: adopting a fine stone concrete protective layer with the strength grade being more than or equal to C20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810599903.4A CN108643230B (en) | 2018-06-12 | 2018-06-12 | Outer waterproof structure of underground comprehensive pipe rack and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810599903.4A CN108643230B (en) | 2018-06-12 | 2018-06-12 | Outer waterproof structure of underground comprehensive pipe rack and construction method |
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|---|---|---|---|---|
| CN109797781B (en) * | 2019-01-24 | 2020-08-11 | 四汇建设集团有限公司 | Method for preventing basement leakage |
| US10968596B2 (en) * | 2019-01-29 | 2021-04-06 | Amir Rudyan | Below grade, blind side, dual waterproofing membrane assembly incorporating a sheet membrane with adhesive to fully bond to concrete/shotcrete, and a method of making, and using same |
| CN110130518A (en) * | 2019-04-30 | 2019-08-16 | 中建八局第二建设有限公司 | A kind of passive type building basement exterior wall heat-preserving construction method |
| CN110541431A (en) * | 2019-08-23 | 2019-12-06 | 重庆建工住宅建设有限公司 | waterproof structure of pipe gallery and construction method thereof |
| CN110777854A (en) * | 2019-10-14 | 2020-02-11 | 中国十七冶集团有限公司 | High-rise building basement roof structure, waterproof coiled material and construction method for protecting layer to survive in one step |
| CN113585493A (en) * | 2021-06-18 | 2021-11-02 | 中国五冶集团有限公司 | Construction method for external waterproof layer of underground structural engineering |
| CN113338335B (en) * | 2021-06-23 | 2022-07-08 | 中国水利水电第三工程局有限公司 | Waterproof construction method for external corner of bottom plate of urban underground comprehensive pipe gallery |
| CN114197524A (en) * | 2021-11-29 | 2022-03-18 | 中国十七冶集团有限公司 | Waterproof construction method for civil air defense basement |
| CN114150714A (en) * | 2021-12-14 | 2022-03-08 | 北京天润建设有限公司 | Waterproof structure and construction method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002121755A (en) * | 2000-10-18 | 2002-04-26 | Koichi Terada | Composite waterproof method for underground structure |
| KR101469641B1 (en) * | 2013-12-30 | 2014-12-05 | 배문옥 | Self-adhesive type composite waterproofing sheet and waterproof method using the same |
| CN107165290A (en) * | 2017-07-18 | 2017-09-15 | 上海宝冶集团有限公司 | Basement bottom board prespreading Macromolecular self-adhesive membrane waterproof roll non-bituminous base construction |
| CN107386321A (en) * | 2017-07-21 | 2017-11-24 | 广西金雨伞防水装饰有限公司 | Piping lane movement joint waterproof slab structure and construction method |
| CN206768880U (en) * | 2017-05-11 | 2017-12-19 | 中国建筑第六工程局有限公司 | A kind of waterproof construction for seashore pipe gallery |
| CN107989068A (en) * | 2017-12-07 | 2018-05-04 | 中国市政工程西北设计研究院有限公司 | A kind of waterproof construction of pipe gallery outer wall |
| CN108104164A (en) * | 2018-01-24 | 2018-06-01 | 中铁四局集团市政工程有限公司 | A kind of underground pipe gallery waterproof construction |
| CN208309638U (en) * | 2018-06-12 | 2019-01-01 | 五冶集团上海有限公司 | A kind of outer waterproof construction of underground pipe gallery |
-
2018
- 2018-06-12 CN CN201810599903.4A patent/CN108643230B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002121755A (en) * | 2000-10-18 | 2002-04-26 | Koichi Terada | Composite waterproof method for underground structure |
| KR101469641B1 (en) * | 2013-12-30 | 2014-12-05 | 배문옥 | Self-adhesive type composite waterproofing sheet and waterproof method using the same |
| CN206768880U (en) * | 2017-05-11 | 2017-12-19 | 中国建筑第六工程局有限公司 | A kind of waterproof construction for seashore pipe gallery |
| CN107165290A (en) * | 2017-07-18 | 2017-09-15 | 上海宝冶集团有限公司 | Basement bottom board prespreading Macromolecular self-adhesive membrane waterproof roll non-bituminous base construction |
| CN107386321A (en) * | 2017-07-21 | 2017-11-24 | 广西金雨伞防水装饰有限公司 | Piping lane movement joint waterproof slab structure and construction method |
| CN107989068A (en) * | 2017-12-07 | 2018-05-04 | 中国市政工程西北设计研究院有限公司 | A kind of waterproof construction of pipe gallery outer wall |
| CN108104164A (en) * | 2018-01-24 | 2018-06-01 | 中铁四局集团市政工程有限公司 | A kind of underground pipe gallery waterproof construction |
| CN208309638U (en) * | 2018-06-12 | 2019-01-01 | 五冶集团上海有限公司 | A kind of outer waterproof construction of underground pipe gallery |
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