CN111851595A - Basement outer wall post-cast strip steel plate sealing structure and construction method thereof - Google Patents
Basement outer wall post-cast strip steel plate sealing structure and construction method thereof Download PDFInfo
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- CN111851595A CN111851595A CN202010766909.3A CN202010766909A CN111851595A CN 111851595 A CN111851595 A CN 111851595A CN 202010766909 A CN202010766909 A CN 202010766909A CN 111851595 A CN111851595 A CN 111851595A
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- 238000010276 construction Methods 0.000 title claims abstract description 35
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 33
- 239000010959 steel Substances 0.000 title claims abstract description 33
- 238000007789 sealing Methods 0.000 title claims abstract description 19
- 239000010410 layer Substances 0.000 claims abstract description 100
- 239000011241 protective layer Substances 0.000 claims abstract description 29
- 238000003466 welding Methods 0.000 claims abstract description 16
- 239000003337 fertilizer Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 43
- 239000004567 concrete Substances 0.000 claims description 13
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 5
- 239000002002 slurry Substances 0.000 claims description 3
- 238000002955 isolation Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 239000004593 Epoxy Substances 0.000 description 1
- 241000264877 Hippospongia communis Species 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000011455 calcium-silicate brick Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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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
- 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
- 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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- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
A basement exterior wall post-cast strip steel plate closed structure and a construction method thereof comprise basement guide walls and basement side walls on two sides of a post-cast strip; the bottom of the basement guide wall is sequentially provided with a longitudinal connecting piece, a bottom plate, a bottom waterproof additional layer, a bottom waterproof layer and a bottom waterproof protective layer; the outer side of the basement side wall is sequentially provided with a vertical connecting piece, a cover plate, a side waterproof additional layer, a side waterproof layer and a side waterproof protective layer; the longitudinal connecting pieces are embedded at the bottoms of the basement guide walls on the two sides, and the two sides of the bottom plate are connected with the longitudinal connecting pieces in a welding mode; the vertical connecting pieces are embedded in the outer side surfaces of the side walls of the basements on the two sides; the cover plate is arranged on the outer side of the post-cast strip, and the two sides of the cover plate are connected with the vertical connecting pieces in a welding mode. The invention solves the technical problems that the traditional construction method is complex in construction, long in construction period, needs large-scale mechanical assistance, is high in safety risk, is greatly influenced by external factors, has poor isolation and sealing effects, and cannot backfill a foundation pit fertilizer groove in advance and insert the foundation pit fertilizer groove in advance in subsequent work.
Description
Technical Field
The invention belongs to the technical field of construction of constructional engineering, and particularly relates to a basement outer wall post-cast strip steel plate sealing structure and a construction method thereof.
Background
With the rapid development of social economy, large-scale building engineering is increasing day by day, in order to solve the uneven settlement caused by large-area floor temperature cracks and building height, a basement structure is provided with a temperature post-cast strip and a settlement post-cast strip (or deformation joints), in the actual building design, the pouring time of the temperature post-cast strip is generally not less than 45 days, and the pouring time of the settlement post-cast strip of the outer wall of the basement needs to be finished by a main structure for 2 months before pouring, so that the backfilling speed of the side wall foundation pit is severely limited.
At present, the basement side wall post-cast strip sealing mode is mostly closed by masonry sand-lime bricks or closed by precast concrete cover plates, and the isolation sealing mode is easy to collapse or generate cracks under the influence of the lateral pressure of earthwork when the earthwork of a foundation pit is backfilled, so that honeycombs appear on the surface of concrete; in addition, the construction process has the defects of complex construction, long construction period, large-scale mechanical assistance, great labor investment, poor isolation and sealing effect, high safety risk, great influence of external factors, incapability of backfilling the foundation pit fertilizer groove in advance and incapability of inserting the foundation pit fertilizer groove in advance in follow-up work.
Disclosure of Invention
The invention aims to provide a basement outer wall post-cast strip steel plate sealing structure and a construction method thereof, and aims to solve the technical problems that the traditional construction method is complex in construction, long in construction period, needs large-scale mechanical assistance, is low in isolation sealing effect, high in safety risk, greatly influenced by external factors, and cannot realize the early backfilling of foundation pit fertilizer grooves and the early insertion of follow-up work.
In order to achieve the purpose, the invention adopts the following technical scheme.
A basement exterior wall post-cast strip steel plate closed structure comprises basement guide walls and basement side walls, wherein the basement guide walls and the basement side walls are arranged on two sides of a post-cast strip; the basement side wall is correspondingly arranged on the basement guide wall; the method is characterized in that: the waterproof structure also comprises a longitudinal connecting piece, a bottom plate, a bottom waterproof additional layer, a bottom waterproof protective layer, a vertical connecting piece, a cover plate, a side waterproof additional layer, a side waterproof layer and a side waterproof protective layer which are sequentially arranged from top to bottom;
a horizontal water stop plate is embedded in the basement guide wall; the end part of the horizontal water stop plate exceeds the side surface of the basement guide wall and extends into the post-pouring belt;
the two longitudinal connecting pieces are respectively embedded at the bottom of the basement guide walls at the two sides of the post-cast strip and close to the post-cast strip; the bottom plate is arranged at the bottom of the post-cast strip, and two sides of the bottom plate are respectively connected with the longitudinal connecting pieces at two sides in a welding manner; the bottom waterproof additional layer covers the seams on the two sides of the bottom plate; the bottom waterproof layer is laid at the bottom of the bottom plate, two sides of the bottom waterproof layer respectively exceed the bottom waterproof additional layer on the corresponding side, and the end part of the bottom waterproof layer is bent upwards and covers the outer side surface of the basement guide wall; the bottom waterproof protective layer is fully paved at the bottom of the bottom waterproof layer and the bottom of the basement guide walls on the two sides;
a vertical water stop plate is embedded in the side wall of the basement; the end part of the vertical water stop plate exceeds the side surface of the side wall of the basement and extends into the post-pouring strip, and the bottom of the vertical water stop plate is connected with the horizontal water stop plate;
the two vertical connecting pieces are respectively embedded on the outer side surfaces of the basement side walls on the two sides of the post-cast strip and are close to the post-cast strip; the lower end of the vertical connecting piece is correspondingly connected with the longitudinal connecting piece; the cover plate is arranged on the outer side of the post-cast strip, and two sides of the cover plate are respectively welded with the vertical connecting pieces on the two sides; horizontal rods are arranged at intervals on the inner side of the cover plate, and the inner ends of the horizontal rods are connected with water stopping screw rods; the side waterproof additional layer covers the seams at the two sides of the cover plate; the side waterproof layer is laid on the outer side of the cover plate, two sides of the side waterproof layer respectively exceed the side waterproof additional layer on the corresponding side, and the bottom edge of the side waterproof layer is in lap joint with the bottom waterproof layer; the side waterproof protective layer is fully paved on the outer side of the side waterproof layer and the outer sides of the basement side walls on two sides, and the side waterproof protective layer is connected with the bottom waterproof protective layer.
Preferably, the distance between the horizontal water stop plate and the bottom surface of the basement guide wall is 450-550 mm; the width of the horizontal water stop plate exceeding the side face of the basement guide wall is 250 mm-350 mm.
Preferably, the longitudinal connecting piece is strip-shaped and is arranged along the longitudinal length; the vertical section of the longitudinal connecting piece is L-shaped and comprises a transverse edge and a vertical edge; the transverse edge of the longitudinal connecting piece is flush with the bottom surface of the basement guide wall, and the vertical edge of the longitudinal connecting piece is buried in the basement guide wall; the distance between the longitudinal connecting piece and the post-cast strip is not less than 300 mm.
Preferably, the vertical connecting piece is strip-shaped and is arranged along the vertical through length; the horizontal section of the vertical connecting piece is L-shaped and comprises a transverse edge and a longitudinal edge; the transverse edge of the vertical connecting piece is flush with the outer side surface of the basement side wall, and the longitudinal edge of the vertical connecting piece is buried in the basement side wall; the distance between the longitudinal connecting piece and the post-cast strip is not less than 300 mm.
Preferably, the outer end of the horizontal rod is welded with the cover plate, and the inner end of the horizontal rod does not exceed the inner side surface of the side wall of the basement; the outer end of the water stop screw rod is connected with the horizontal rod in a welding mode, and the inner end of the water stop screw rod exceeds the inner side face of the side wall of the basement.
Preferably, an anti-rust layer is coated on the outer surface of the cover plate, and a gap between the cover plate and the vertical connecting piece is sealed by sealing paste; and an anti-rust layer is coated on the bottom surface of the bottom plate.
Preferably, one side of the bottom waterproof additional layer covers the bottom plate, and the width of the bottom waterproof additional layer covering the bottom plate is 250-350 mm; the other side of the waterproof additional layer of bottom covers on the basement leads the wall, and covers the width that leads on the wall of basement and be 250mm ~350 mm.
Preferably, one side of the side waterproof additional layer covers the cover plate, and the width of the side waterproof additional layer covering the cover plate is 150 mm-250 mm; the waterproof additional layer of side's opposite side covers on the basement side wall, and covers the width on the basement side wall and be 150mm ~250 mm.
A construction method of a basement outer wall post-cast strip steel plate closed structure comprises the following steps.
After the reinforcing steel bars of the basement guide wall are bound, horizontal water stop plates are buried at the upper portions of the basement guide walls on the two sides of the post-cast strip respectively, longitudinal connecting pieces are pre-buried at the bottoms of the basement guide walls on the two sides of the post-cast strip, and vertical connecting pieces are pre-buried on the outer side faces of the basement side walls on the two sides of the post-cast strip.
And step two, arranging a bottom plate in the area of the post-cast strip, and enabling the bottom plate to be connected with the longitudinal connecting pieces on the two sides in a welding mode.
And step three, sequentially arranging a bottom waterproof additional layer, a bottom waterproof layer and a bottom waterproof protective layer.
And step four, pouring concrete of the basement guide wall.
And step five, binding the steel bars of the basement side wall.
And step six, after the reinforcing steel bars of the side wall of the basement are bound, installing a vertical water stop plate.
Step seven: and pouring concrete of the side wall of the basement.
Step eight: after concrete pouring of the side wall of the basement is finished, floating slurry on the surface of the vertical connecting piece is cleaned in time; and simultaneously, chiseling the side walls of the basement side walls on two sides of the post-cast strip.
Step nine: the cover plate, the side waterproof additional layer, the side waterproof layer and the side waterproof protective layer are sequentially arranged from inside to outside.
Step ten: and finishing the construction of the basement outer wall post-cast strip steel plate closed structure, and backfilling a basement foundation pit fertilizer groove until the construction is finished.
Preferably, the cover plate is formed by vertically splicing a group of cover plate units; two adjacent cover plate units are connected by welding through a horizontal connecting rod.
Compared with the prior art, the invention has the following characteristics and beneficial effects.
1. The construction method of the basement outer wall post-cast strip steel plate closed structure has the characteristics of simple construction process, short installation period, good seepage-proofing effect, low manufacturing cost and the like, and realizes the early backfilling of the side wall foundation pit.
2. According to the invention, the longitudinal connecting pieces are embedded in the two sides of the bottom of the basement guide wall, the vertical connecting pieces are embedded in the outer side surfaces of the basement side walls, the longitudinal connecting pieces, the vertical connecting pieces and the supporting rods are U-shaped after being installed, and the cover plates are arranged on the outer sides of the basement side walls, so that the cover plates are convenient to weld due to the structural design, and the waterproof effect is improved; in addition, the vertical connecting piece is connected with the outer layer steel bar of the side wall of the basement, the thickness of the concrete protective layer is considered when the vertical connecting piece is fixed, the vertical connecting piece is prevented from being poured in the side wall of the basement in a plane or protruding out of the side wall of the basement, floating pulp on the surface of the angle steel is timely cleaned after concrete pouring is completed, and the post-cast strip is subjected to roughening, so that post-cast strip isolation and sealing construction can be carried out after the processes are completed; the bottom and the side of the post-cast strip with the structural design can be constructed simultaneously, and the technical problems that the traditional construction method is complex in construction, long in construction period, needs large-scale mechanical assistance, is low in isolation and sealing effect due to the fact that a large amount of labor is input, a foundation pit fertilizer groove cannot be backfilled in advance, and follow-up work cannot be inserted in advance are solved.
3. The sealing construction of the steel plate sealing structure is simple in construction process, large-scale equipment and a large amount of labor are not needed in the construction process, the reliability is high, the construction difficulty is low, the bottom plate and the cover plate are used for isolation and sealing before the post-cast strip is poured, the situation that earthwork enters the post-cast strip due to overlarge earthwork side pressure when a foundation pit fertilizer groove is backfilled and cannot be cleaned on the site is effectively prevented, and meanwhile, the corrosion of reinforcing steel bars exposed outside for a long time before the post-cast strip is sealed is avoided.
4. The post-cast strip pattern steel plate is isolated and sealed, after the post-cast strip is sealed by the bottom plate and the cover plate, the concrete forming quality is good, the leakage risk is low, meanwhile, the cover plate can resist the lateral pressure of backfill soil, and the cover plate is not easy to deform, so that the aim of early backfilling of a foundation pit is fulfilled. Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic view of a vertical section structure of a basement guide wall with a longitudinal connecting piece and a bottom plate at the bottom.
FIG. 2 is a schematic view of a horizontal section structure of a basement side wall with vertical connectors and a cover plate on the outside.
Fig. 3 is a schematic view of the arrangement of the support rods in the present invention.
Fig. 4 is a schematic view of the connection structure of the cover plate and the vertical connecting member according to the present invention.
Fig. 5 is a schematic structural view of the vertical water stop plate of the present invention.
Reference numerals: the waterproof structure comprises 1-basement guide wall, 2-post-pouring belt, 3-basement side wall, 4-longitudinal connecting piece, 5-bottom plate, 6-bottom waterproof additional layer, 7-bottom waterproof layer, 8-bottom waterproof protective layer, 9-vertical connecting piece, 10-cover plate, 10.1-cover plate unit, 10.2-horizontal connecting rod, 11-side waterproof additional layer, 12-side waterproof layer, 13-side waterproof protective layer, 14-horizontal water stop plate, 15-vertical water stop plate, 16-horizontal rod, 17-water stop screw rod, 18-sealing paste and 19-supporting rod.
Detailed Description
As shown in fig. 1-5, the basement exterior wall post-cast strip steel plate closed structure comprises basement guide walls 1 and basement side walls 3 on two sides of a post-cast strip 2; the basement side wall 3 is correspondingly arranged on the basement guide wall 1; the waterproof structure also comprises a longitudinal connecting piece 4, a bottom plate 5, a bottom waterproof additional layer 6, a bottom waterproof layer 7, a bottom waterproof protective layer 8, a vertical connecting piece 9, a cover plate 10, a side waterproof additional layer 11, a side waterproof layer 12 and a side waterproof protective layer 13 which are sequentially arranged from top to bottom;
a horizontal water stop plate 14 is buried in the basement guide wall 1; the end part of the horizontal water stop plate 14 exceeds the side surface of the basement guide wall 1 and extends into the post-pouring belt 2;
the two longitudinal connecting pieces 4 are respectively embedded at the bottom of the basement guide walls 1 at the two sides of the post-cast strip 2 and close to the post-cast strip 2; the bottom plate 5 is arranged at the bottom of the post-cast strip 2, and two sides of the bottom plate 5 are respectively connected with the longitudinal connecting pieces 4 at two sides in a welding manner; the bottom waterproof additional layer 6 covers the seams at the two sides of the bottom plate 5; the bottom waterproof layer 7 is laid at the bottom of the bottom plate 5, two sides of the bottom waterproof layer 7 respectively exceed the bottom waterproof additional layer 6 on the corresponding side, and the end part of the bottom waterproof layer 7 is bent upwards and covers the outer side surface of the basement guide wall 1; the bottom waterproof protective layer 8 is fully paved at the bottom of the bottom waterproof layer 7 and the bottoms of the basement guide walls 1 at two sides;
a vertical water stop plate 15 is embedded in the side wall 3 of the basement; the end part of the vertical water stop plate 15 exceeds the side surface of the side wall 3 of the basement and extends into the post-pouring strip 2, and the bottom of the vertical water stop plate 15 is connected with the horizontal water stop plate 14;
two vertical connecting pieces 9 are respectively embedded on the outer side surfaces of the basement side walls 3 on the two sides of the post-cast strip 2 and close to the post-cast strip 2; the lower end of the vertical connecting piece 9 is correspondingly connected with the longitudinal connecting piece 4; the cover plate 10 is arranged on the outer side of the post-cast strip 2, and two sides of the cover plate 10 are respectively connected with the vertical connecting pieces 9 on two sides in a welding manner; horizontal rods 16 are arranged at intervals on the inner side of the cover plate 10, and the inner ends of the horizontal rods 16 are connected with water stop screws 17; the side waterproof additional layer 11 covers the seams at the two sides of the cover plate 10; the side waterproof layer 12 is laid on the outer side of the cover plate 10, two sides of the side waterproof layer 12 respectively exceed the side waterproof additional layer 11 on the corresponding side, and the bottom edge of the side waterproof layer 12 is overlapped with the bottom waterproof layer 7; the side waterproof protective layer 13 is fully paved on the outer side of the side waterproof layer 12 and the outer sides of the basement side walls 3 on the two sides, and the side waterproof protective layer 13 is connected with the bottom waterproof protective layer 8.
In the embodiment, the distance between the horizontal water stop plate 14 and the bottom surface of the basement guide wall 1 is 450-550 mm; the width of the horizontal water stop plate 14 beyond the side face of the basement guide wall 1 is 250 mm-350 mm.
In this embodiment, the longitudinal connecting member 4 is strip-shaped and is arranged along the longitudinal length; the vertical section of the longitudinal connecting piece 4 is L-shaped and comprises a transverse edge and a vertical edge; the transverse edge of the longitudinal connecting piece 4 is flush with the bottom surface of the basement guide wall 1, and the vertical edge of the longitudinal connecting piece 4 is buried in the basement guide wall 1; the distance between the longitudinal connecting piece 4 and the post-cast strip 2 is not less than 300 mm.
In this embodiment, the vertical connecting piece 9 is strip-shaped and is arranged along the vertical through length; the horizontal section of the vertical connecting piece 9 is L-shaped and comprises a transverse edge and a longitudinal edge; the transverse edge of the vertical connecting piece 9 is flush with the outer side surface of the basement side wall 3, and the longitudinal edge of the vertical connecting piece 9 is buried in the basement side wall 3; the distance between the longitudinal connecting piece 4 and the post-cast strip 2 is not less than 300 mm.
In this embodiment, the outer end of the horizontal rod 16 is welded to the cover plate 10, and the inner end of the horizontal rod 16 does not exceed the inner side surface of the sidewall 3 of the basement; the outer end of the water stop screw rod 17 is connected with the horizontal rod 16 in a welding mode, and the inner end of the water stop screw rod 17 exceeds the inner side face of the side wall 3 of the basement.
In the embodiment, an anti-rust layer is coated on the outer surface of the cover plate 10, and a gap between the cover plate 10 and the vertical connecting piece 9 is sealed by using sealing paste 18; and the bottom surface of the bottom plate 5 is coated with an anti-rust layer.
In this embodiment, one side of the bottom waterproof additional layer 6 covers the bottom plate 5, and the width of the bottom waterproof additional layer covering the bottom plate 5 is 250 mm-350 mm; the waterproof additional layer 6 in bottom's opposite side covers on basement leads wall 1, and covers the width that the basement led wall 1 on and be 250mm ~350 mm.
In this embodiment, one side of the side waterproof additional layer 11 covers the cover plate 10, and the width of the side waterproof additional layer covering the cover plate 10 is 150mm to 250 mm; the other side of the side waterproof additional layer 11 covers the basement side wall 3, and the width of the side waterproof additional layer covering the basement side wall 3 is 150 mm-250 mm.
In the embodiment, the thicknesses of the bottom plate 5 and the cover plate 10 are not less than 5.0mm, and the width of the bottom plate 5 is adapted to the distance between the longitudinal connecting pieces 4 at two sides; the width of the cover plate 10 is adapted to the distance between the vertical connecting pieces 9 on both sides.
In the embodiment, the anti-rust layer is formed by brushing epoxy zinc-rich paint, and the thickness of the anti-rust layer is not less than 2 mm-3 mm.
In this embodiment, the bottom waterproof layer 7 is bent upwards, and the height of covering on the outer side surface of the basement guide wall 1 is 250 mm-350 mm.
In this embodiment, the end of the bottom plate 5 is welded with a support rod 19 at a position corresponding to the outer side surface of the basement guide wall 1; the support rod 19 is made of angle steel; the lower part of the inner side surface of the cover plate 10 is connected with a support rod 19 in a welding mode, and the support rod 19 is used as a support point of the cover plate 10 so as to ensure the lap joint length and the weld joint stability of the cover plate 10 and the bottom plate 5.
In this embodiment, the bottom plate 5 and the cover plate 10 are both made of steel plates, the thickness of the bottom plate 5 is not less than 5mm, and the thickness of the cover plate 10 is not less than 5 mm.
The construction method of the basement outer wall post-cast strip steel plate closed structure comprises the following steps.
Step one, after the reinforcement of the basement guide wall 1 is bound, horizontal water stop plates 14 are buried at the upper parts of the basement guide walls 1 on the two sides of the post-cast strip 2, longitudinal connecting pieces 4 are pre-buried at the bottoms of the basement guide walls 1 on the two sides of the post-cast strip 2, and vertical connecting pieces 9 are pre-buried on the outer side surfaces of the basement side walls 3 on the two sides of the post-cast strip 2.
And step two, arranging a bottom plate 5 at the area of the post-cast strip 2, and enabling the bottom plate 5 to be connected with the longitudinal connecting pieces 4 on the two sides in a welding mode.
And step three, sequentially arranging a bottom waterproof additional layer 6, a bottom waterproof layer 7 and a bottom waterproof protective layer 8.
And step four, pouring concrete of the basement guide wall 1.
And step five, binding the steel bars of the basement side wall 3.
And step six, after the reinforcing steel bars of the side wall 3 of the basement are bound, installing a vertical water stop plate 15.
Step seven: and pouring concrete of the side wall 3 of the basement.
Step eight: after concrete pouring of the basement side wall 3 is completed, floating slurry on the surface of the vertical connecting piece 9 is cleaned in time; and simultaneously, chiseling the side walls of the basement side walls 3 at two sides of the post-cast strip.
Step nine: the cover plate 10, the side waterproof additional layer 11, the side waterproof layer 12 and the side waterproof protective layer 13 are sequentially arranged from inside to outside.
Step ten: and finishing the construction of the basement outer wall post-cast strip steel plate closed structure, and backfilling a basement foundation pit fertilizer groove until the construction is finished.
In this embodiment, the cover plate 10 is formed by vertically splicing a group of cover plate units 10.1; two adjacent cover plate units 10.1 are connected by welding through horizontal connecting rods 10.2.
In this embodiment, both sides of the post-cast strip 2 are closed by the fast and easy closing-up net.
The above embodiments are not intended to be exhaustive or to limit the invention to other embodiments, and the above embodiments are intended to illustrate the invention and not to limit the scope of the invention, and all applications that can be modified from the invention are within the scope of the invention.
Claims (10)
1. A basement outer wall post-cast strip steel plate closed structure comprises basement guide walls (1) and basement side walls (3) on two sides of a post-cast strip (2); the basement side wall (3) is correspondingly arranged on the basement guide wall (1); the method is characterized in that: the waterproof structure is characterized by also comprising a longitudinal connecting piece (4), a bottom plate (5), a bottom waterproof additional layer (6), a bottom waterproof layer (7) and a bottom waterproof protective layer (8) which are sequentially arranged from top to bottom, and a vertical connecting piece (9), a cover plate (10), a side waterproof additional layer (11), a side waterproof layer (12) and a side waterproof protective layer (13) which are sequentially arranged from inside to outside;
a horizontal water stop plate (14) is buried in the basement guide wall (1); the end part of the horizontal water stop plate (14) exceeds the side surface of the basement guide wall (1) and extends into the post-pouring belt (2);
the two longitudinal connecting pieces (4) are respectively embedded at the bottom of the basement guide walls (1) at the two sides of the post-cast strip (2) and close to the post-cast strip (2); the bottom plate (5) is arranged at the bottom of the post-cast strip (2), and two sides of the bottom plate (5) are respectively connected with the longitudinal connecting pieces (4) at two sides in a welding manner; the bottom waterproof additional layer (6) covers the seams at the two sides of the bottom plate (5); the bottom waterproof layer (7) is laid at the bottom of the bottom plate (5), two sides of the bottom waterproof layer (7) respectively exceed the bottom waterproof additional layer (6) on the corresponding side, and the end part of the bottom waterproof layer (7) is bent upwards and covers the outer side surface of the basement guide wall (1); the bottom waterproof protective layer (8) is fully paved at the bottom of the bottom waterproof layer (7) and the bottoms of the basement guide walls (1) at two sides;
a vertical water stop plate (15) is buried in the side wall (3) of the basement; the end part of the vertical water stop plate (15) exceeds the side surface of the side wall (3) of the basement and extends into the post-pouring strip (2), and the bottom of the vertical water stop plate (15) is connected with the horizontal water stop plate (14);
the two vertical connecting pieces (9) are respectively embedded on the outer side surfaces of the basement side walls (3) at the two sides of the post-cast strip (2) and close to the post-cast strip (2); the lower end of the vertical connecting piece (9) is correspondingly connected with the longitudinal connecting piece (4); the cover plate (10) is arranged on the outer side of the post-cast strip (2), and two sides of the cover plate (10) are respectively connected with the vertical connecting pieces (9) on the two sides in a welding manner; horizontal rods (16) are arranged at the inner side of the cover plate (10) at intervals, and the inner ends of the horizontal rods (16) are connected with water stop screws (17); the side waterproof additional layer (11) covers the seams at the two sides of the cover plate (10); the side waterproof layer (12) is laid on the outer side of the cover plate (10), two sides of the side waterproof layer (12) respectively exceed the side waterproof additional layer (11) on the corresponding side, and the bottom edge of the side waterproof layer (12) is overlapped with the bottom waterproof layer (7); the side waterproof protective layer (13) is fully paved on the outer side of the side waterproof layer (12) and the outer sides of the basement side walls (3) on the two sides, and the side waterproof protective layer (13) is connected with the bottom waterproof protective layer (8).
2. The basement exterior wall post-cast strip steel plate closed structure of claim 1, characterized in that: the distance between the horizontal water stop plate (14) and the bottom surface of the basement guide wall (1) is 450-550 mm; the width of the horizontal water stop plate (14) exceeding the side face part of the basement guide wall (1) is 250-350 mm.
3. The basement exterior wall post-cast strip steel plate closed structure of claim 1, characterized in that: the longitudinal connecting piece (4) is strip-shaped and is arranged along the longitudinal length; the vertical section of the longitudinal connecting piece (4) is L-shaped and comprises a transverse edge and a vertical edge; the transverse edge of the longitudinal connecting piece (4) is flush with the bottom surface of the basement guide wall (1), and the vertical edge of the longitudinal connecting piece (4) is buried in the basement guide wall (1); the distance between the longitudinal connecting piece (4) and the post-cast strip (2) is not less than 300 mm.
4. The basement exterior wall post-cast strip steel plate closed structure of claim 1, characterized in that: the vertical connecting piece (9) is strip-shaped and is arranged along the vertical through length; the horizontal section of the vertical connecting piece (9) is L-shaped and comprises a transverse edge and a longitudinal edge; the transverse edge of the vertical connecting piece (9) is flush with the outer side surface of the basement side wall (3), and the longitudinal edge of the vertical connecting piece (9) is embedded in the basement side wall (3); the distance between the longitudinal connecting piece (4) and the post-cast strip (2) is not less than 300 mm.
5. The basement exterior wall post-cast strip steel plate closed structure of claim 1, characterized in that: the outer end of the horizontal rod (16) is welded with the cover plate (10), and the inner end of the horizontal rod (16) does not exceed the inner side surface of the basement side wall (3); the outer end of the water stop screw rod (17) is connected with the horizontal rod (16) in a welding mode, and the inner end of the water stop screw rod (17) exceeds the inner side face of the basement side wall (3).
6. The basement exterior wall post-cast strip steel plate closed structure of claim 1, characterized in that: an anti-rust layer is coated on the outer surface of the cover plate (10), and a gap between the cover plate (10) and the vertical connecting piece (9) is sealed by sealing paste (18); and the bottom surface of the bottom plate (5) is coated with an anti-rust layer.
7. The basement exterior wall post-cast strip steel plate closed structure of claim 1, characterized in that: one side of the bottom waterproof additional layer (6) covers the bottom plate (5), and the width of the bottom waterproof additional layer covering the bottom plate (5) is 250-350 mm; the other side of the waterproof additional layer (6) of bottom covers on basement guide wall (1), and covers the width on basement guide wall (1) and be 250mm ~350 mm.
8. The basement exterior wall post-cast strip steel plate closed structure of claim 1, characterized in that: one side of the side waterproof additional layer (11) covers the cover plate (10), and the width of the side waterproof additional layer covering the cover plate (10) is 150-250 mm; the other side of the side waterproof additional layer (11) covers the basement side wall (3), and the width of the side waterproof additional layer covering the basement side wall (3) is 150 mm-250 mm.
9. The construction method of the basement exterior wall post-cast strip steel plate closed structure as claimed in any one of claims 1-8, characterized by comprising the following steps:
after steel bars of the basement guide wall (1) are bound, horizontal water stop plates (14) are buried at the upper parts of the basement guide wall (1) on the two sides of the post-cast strip (2), longitudinal connecting pieces (4) are pre-buried at the bottoms of the basement guide wall (1) on the two sides of the post-cast strip (2), and vertical connecting pieces (9) are pre-buried on the outer side surfaces of the basement side walls (3) on the two sides of the post-cast strip (2);
secondly, arranging a bottom plate (5) at the area of the post-cast strip (2) to enable the bottom plate (5) to be welded and connected with the longitudinal connecting pieces (4) on the two sides;
thirdly, sequentially arranging a bottom waterproof additional layer (6), a bottom waterproof layer (7) and a bottom waterproof protective layer (8);
pouring concrete of the basement guide wall (1);
binding steel bars of the basement side wall (3);
sixthly, after the reinforcing steel bars of the side wall (3) of the basement are bound, a vertical water stop plate (15) is installed;
step seven: pouring concrete of the basement side wall (3);
step eight: after concrete pouring of the basement side wall (3) is completed, floating slurry on the surface of the vertical connecting piece (9) is cleaned in time; simultaneously, chiseling the side walls of the basement side walls (3) at two sides of the post-cast strip;
step nine: a cover plate (10), a side waterproof additional layer (11), a side waterproof layer (12) and a side waterproof protective layer (13) are sequentially arranged from inside to outside;
step ten: and finishing the construction of the basement outer wall post-cast strip steel plate closed structure, and backfilling a basement foundation pit fertilizer groove until the construction is finished.
10. The construction method of the basement exterior wall post-cast strip steel plate sealing structure according to claim 9, characterized in that: the cover plate (10) is formed by vertically splicing a group of cover plate units (10.1); two adjacent cover plate units (10.1) are connected by welding through a horizontal connecting rod (10.2).
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| CN111851595B (en) | 2022-04-15 |
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