CN117646497A - Basement outer wall post-pouring belt pre-sealing structure and construction method - Google Patents

Basement outer wall post-pouring belt pre-sealing structure and construction method Download PDF

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Publication number
CN117646497A
CN117646497A CN202410078927.0A CN202410078927A CN117646497A CN 117646497 A CN117646497 A CN 117646497A CN 202410078927 A CN202410078927 A CN 202410078927A CN 117646497 A CN117646497 A CN 117646497A
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CN
China
Prior art keywords
post
pouring
strip
cast strip
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202410078927.0A
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Chinese (zh)
Inventor
刘忠
庞维聪
孙健强
王巨香
张亚兵
任永奇
白晓军
刘玲玉
柳敏青
冯玉昌
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Dayuan Construction Group Co ltd
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Dayuan Construction Group Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Dayuan Construction Group Co ltd filed Critical Dayuan Construction Group Co ltd
Priority to CN202410078927.0A priority Critical patent/CN117646497A/en
Publication of CN117646497A publication Critical patent/CN117646497A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66Sealings
    • E04B1/68Sealings of joints, e.g. expansion joints
    • E04B1/6806Waterstops
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66Sealings
    • E04B1/68Sealings of joints, e.g. expansion joints
    • E04B1/6801Fillings therefor
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02Conveying or working-up concrete or similar masses able to be heaped or cast

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)

Abstract

The invention discloses a basement outer wall post-pouring zone pre-sealing structure and a construction method, comprising the following steps: the post-pouring strip is internally reserved with post-pouring strip steel bars, and cushion blocks are arranged on the outer sides of the post-pouring strip steel bars; the protective plate is arranged on the outer side of the post-pouring belt, one side, far away from the post-pouring belt, of the protective plate is provided with a temporary support, the other side is provided with a waterproof coiled material covering the protective plate along the extending direction of the post-pouring belt, one side, close to the post-pouring belt, of the waterproof coiled material is provided with a supporting plate, and the supporting plate is in contact with the cushion block; the support system is arranged on the inner side of the post-pouring belt and comprises a template and a supporting component, the template is arranged on the inner side of the post-pouring belt, and the supporting component is used for fixing the template. The invention reduces the stress condition and the waterproof construction condition of the wall body which is poured firstly and then backfilled by the post-pouring strip, and does not need to use a opposite pulling assembly, thereby avoiding forming a water inlet channel and improving the waterproof quality of the post-pouring strip of the outer wall.

Description

Basement outer wall post-pouring belt pre-sealing structure and construction method
Technical Field
The invention relates to the field of basement exterior wall post-pouring strips. More particularly, the invention relates to a basement outer wall post-pouring strip pre-sealing structure and a construction method.
Background
At present, with the rapid development of the construction industry in China, the utilization of underground space is more and more extensive, the volume is increased, and as the structural size is increased, a post-cast strip is required to be arranged in an ultra-long structure, in actual engineering construction, in order to construct outdoor water, pipe networks, landscapes, gardens and the like as soon as possible, so as to shorten the penetrating period, backfilling operation is required in advance, but the existence of the post-cast strip on the outer wall influences the backfilling of a fertilizer tank, and further influences a plurality of subsequent construction procedures; if a construction method of pouring the external wall post-pouring strip after backfilling is adopted, the stress of wall plates on two sides of the external wall post-pouring strip is approximate to an overhanging state, particularly the middle part of the wall body, and the deformation of the middle part of the wall body caused by the lateral pressure of backfill is not considered in the prior art; meanwhile, the use of the split bolts also increases the water inlet path and the like. Therefore, in order to solve the contradiction and problems, shorten the construction period, improve the waterproof quality and create good conditions for subsequent construction, the invention provides a basement outer wall post-pouring belt pre-sealing structure and a construction method.
Disclosure of Invention
The invention aims to provide a basement outer wall post-pouring strip pre-sealing structure and a construction method, and aims to solve the problem of construction of a basement outer wall post-pouring strip of a cast-in-place reinforced concrete structure in constructional engineering. The method does not need to adopt a counter-pulling piece, avoids the outer wall from forming a water inlet channel through the counter-pulling piece, and reduces the stress condition and the waterproof construction condition of pouring the post-pouring strip and backfilling the outer wall of the basement.
To achieve these objects and other advantages and in accordance with the purpose of the invention, a basement exterior wall post-cast strip pre-closing structure is provided, comprising: the post-pouring strip is internally reserved with post-pouring strip steel bars, and cushion blocks are arranged on the steel bars outside the post-pouring strip steel bars; the protective plate is arranged outside the post-pouring belt, two sides of the protective plate extend to outer walls at two sides of the post-pouring belt, one side, far away from the post-pouring belt, of the protective plate is provided with a temporary support, the other side is provided with a waterproof coiled material covering the protective plate along the extending direction of the post-pouring belt, one side, close to the post-pouring belt, of the waterproof coiled material is provided with a supporting plate, and the supporting plate is in contact with the cushion block; the support system is arranged on the inner side of the post-pouring strip and comprises a template and a supporting component, wherein the template is arranged on the inner side of the post-pouring strip, and the supporting component is used for fixing the template.
Further, the supporting component comprises two stand columns, a plurality of clamping plates and a supporting rod group, wherein two stand columns are arranged at outer walls on two sides of the post-cast strip, tie plates are arranged on the stand columns at intervals, the extending direction of the tie plates is perpendicular to the post-cast strip, the clamping plates are connected with the two tie plates on the stand columns in a clamping mode, and the supporting rod group is arranged on the outer sides of the stand columns and the clamping plates and used for fixing the templates, the stand columns and the clamping plates.
Further, the protection board includes a plurality of trapezoidal prefabricated plates, be equipped with the preformed hole in the prefabricated plate, the preformed hole is along post-cast strip extending direction, a plurality of prefabricated plates are according to preformed hole correspondence concatenation and in the preformed hole sets up the reinforcing bar and pours concrete and form the protection board.
Further, a waterproof additional layer is further arranged on one side, close to the post-pouring strip, of the waterproof coiled material, the waterproof additional layer is arranged at the joint of the post-pouring strip and the outer side of the post-pouring strip, the extending direction of the waterproof additional layer is consistent with that of the waterproof coiled material, and the supporting plate covers the lap joint of the waterproof additional layer and the waterproof coiled material.
Further, the clamping plate is a through long pi-shaped clamping plate with sockets at two ends, strip-shaped fixing holes are staggered on the drawknot plate, wedge-shaped fixing pins are arranged in the fixing holes, the sockets of the clamping plate are connected with the drawknot plate in a clamping mode, so that the clamping plate is fixed between the upright posts and the wedge-shaped fixing pins, and a square is arranged between the clamping plate and the template.
Further, a groove is formed in one side, close to the post-pouring strip, of the protective plate along the extending direction of the post-pouring strip, and the reserved portion of the waterproof coiled material is arranged in the groove.
Further, a water stop steel plate is arranged at the joint of the post-pouring belt and the outer walls at two sides of the post-pouring belt.
The invention also provides a construction method of the basement outer wall post-pouring strip pre-sealing structure, which comprises the following steps: s1, manufacturing a protection plate according to construction size requirements; s2, installing cushion blocks on the steel bars outside the post-pouring belt; s3, sticking a waterproof coiled material on one surface of the protective plate, which is close to the post-pouring belt, wherein a supporting plate is arranged on the outer side of the waterproof coiled material, and the protective plate is fixed by using a temporary support, so that one surface of the protective plate, which is stuck with the waterproof coiled material, is connected with the outer side of the post-pouring belt, and the supporting plate is contacted with a cushion block on the reinforcing steel bar outside the post-pouring belt; s4, installing a supporting system on the inner side of the post-pouring belt, arranging a template on the inner side of the post-pouring belt, and fixing the template by using a supporting component; s5, pouring concrete into the post-pouring belt, and dismantling the supporting system after the post-pouring belt concrete meets the design strength requirement.
Further, after the installation of the supporting system is completed, the fertilizer tank is backfilled in a layered mode, the temporary support is removed during the backfilling process, the position close to the post-pouring belt is backfilled with gray soil, the rest position is backfilled with plain soil, a blind ditch is arranged at the bottom of the position, close to the gray soil, of the position, of the plain soil backfilling, a water pipe is buried in the blind ditch in a hidden mode, one end of the water pipe is communicated with the blind ditch, and the other end of the water pipe extends to the ground to be connected with a self-sucking pump.
Further, a cushion layer is reserved in the foundation part in advance, blind ditches are arranged below the joint of the bottom plates at two sides of the post-pouring belt and the bottom plates at two sides of the post-pouring belt, guide pipes with holes on the surfaces are arranged in the blind ditches, and grouting is conducted in the guide pipes through grouting pipes after construction of the post-pouring belt of the foundation part is completed.
The invention at least comprises the following beneficial effects: the invention completely reduces the stress condition and the waterproof construction condition of the outdoor wall of the basement filled with the pouring-after-pouring strip, effectively solves the problem of waterproof cracking caused by deformation of two sides after pre-sealing waterproof construction, and improves the waterproof quality of the post-pouring strip of the outer wall. The protection board can be processed in advance in a centralized manner, installed on site and constructed rapidly, a non-penetrating post-pouring strip supporting system of a counter-pulling assembly is not needed, the shaping construction is carried out, the protection board is suitable for the construction of the post-pouring strip of the outer wall with the thickness of 700mm-1200mm, the supporting system on the inner side of the post-pouring strip can be repeatedly circulated, the operation and the practicability are high, and the formation of a water inlet channel is effectively reduced.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic top sectional view of a pre-closed structure of a post-cast strip of an outer wall of a basement according to the present invention;
FIG. 2 is a schematic structural view of a basement exterior wall post-cast strip pre-closure structure bracing system of the present invention;
FIG. 3 is a schematic diagram of the overall structure of the inner and outer sides of the pre-closed structure of the post-cast strip of the basement outer wall of the present invention;
FIG. 4 is a cross-sectional view of a foundation post-cast strip construction of a pre-closed structure of a basement exterior wall post-cast strip of the present invention.
Detailed Description
The present invention is described in further detail below with reference to the drawings to enable those skilled in the art to practice the invention by referring to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 to 4, embodiments of the present application provide a basement exterior wall post-cast strip pre-sealing structure, including: the post-pouring strip 7 is internally reserved with post-pouring strip steel bars, and spacer blocks 9 are arranged on the steel bar net at intervals outside the post-pouring strip steel bars, and optionally, the spacer blocks 9 can be cement spacer blocks or flywheel spacer blocks and the like; vertically and alternately arranging the steel bars along the outer side of the post-cast strip 7; the protection plate 1 is arranged outside the post-cast strip 7, and alternatively, the protection plate 1 can be formed by splicing an integral precast slab or a plurality of precast slabs; the width of the protection plate 1 is larger than that of the post-pouring strip 7, so that the left and right edge parts of the protection plate 1 are contacted with the outer walls on the two sides of the post-pouring strip 7, a temporary support is arranged on one side, far away from the post-pouring strip 7, of the protection plate 1, the protection plate 1 can be temporarily fixed on the outer side of the post-pouring strip 7 by adopting a steel pipe, a waterproof coiled material 3 for covering the protection plate 1 is arranged on the other side of the protection plate 1 along the extending direction of the post-pouring strip 7, and optionally, the protection plate 1 can be integrally covered by adopting polyurethane waterproof coiled materials or modified asphalt waterproof coiled materials and the like; the width of the waterproof coiled material 3 is consistent with that of the protective plate 1, a supporting plate 10 is arranged on one side of the waterproof coiled material 3 close to the post-pouring strip 7, alternatively, a thin steel plate with the thickness of 2mm can be adopted as the supporting plate, and the length of the thin steel plate is consistent with that of the protective plate 1; the supporting plate 10 is contacted with the cushion blocks 9 on the steel bars at the outer side of the post-pouring strip 7, and the cushion blocks 9 squeeze the supporting plate 10 to tightly support the waterproof coiled material 3 on the protective plate 1; the support system is arranged on the inner side of the post-pouring belt 7 and comprises a template 12 and a supporting component, the width of the template 12 is slightly larger than that of the post-pouring belt 7, and the support system is arranged on the inner side of the post-pouring belt 7, and optionally, a wood template 12, a rigid template 12 and the like can be adopted; the left and right ends of the template 12 are respectively contacted with the outer walls at the two sides of the post-pouring strip 7, and the supporting component is used for fixing the template 12, so that the left and right ends of the template 12 are in close contact with the outer walls of the post-pouring strip 7.
When the post-cast strip pre-sealing structure is constructed, a protective plate 1 is manufactured according to the size of a post-cast strip 7, cushion blocks 9 are vertically arranged at the outer side of a post-cast strip reserved steel bar at intervals, a waterproof coiled material 3 is adhered to one side, close to the post-cast strip 7, of the protective plate 1, a supporting plate 10 is arranged on the front side of the waterproof coiled material 3, the protective plate 1 is hoisted at the reserved position of the post-cast strip 7 by adopting hoisting equipment, the waterproof coiled material 3 is prevented from falling off in the hoisting process, the supporting plate 10 is aligned with the cushion blocks 9 on the steel bar at the outer side of the post-cast strip 7, the waterproof coiled material 3 is tightly extruded between the protective plate 1 and the supporting plate 10, steel pipes are adopted for temporary support at the outer side of the protective plate 1, the protective plate 1 is prevented from collapsing, a car manufacturing system is built later, a template 12 is arranged at the inner side of the post-cast strip 7, the template 12 is fixed by adopting a supporting assembly, and concrete pouring work of the post-cast strip 7 is carried out after the fixing is completed. The pre-closed waterproof construction of the post-cast strip by adopting the protective plate 1 completely reduces the stress condition and the waterproof construction condition of the wall body which is firstly poured and then backfilled by the post-cast strip, effectively solves the problem of waterproof cracking caused by deformation of two sides after the pre-closed waterproof construction, improves the waterproof quality of the post-cast strip of the outer wall, and meanwhile, the non-penetrating supporting system at the inner side of the post-cast strip 7 can be repeatedly circulated, so that the method has strong operability and practicability.
In other embodiments, the supporting system comprises a template 12 and a supporting component, the supporting component comprises two upright posts 13, a plurality of clamping plates 15 and a supporting rod group 18, the two upright posts 13 are respectively arranged at two outer walls on the inner side of the post-cast strip 7, a plurality of drawknot plates 14 are respectively arranged on the two upright posts 13, the extending direction of the drawknot plates 14 is perpendicular to the post-cast strip 7 and extends towards the inner side of the post-cast strip 7, the drawknot plates 14 on the two upright posts 13 are mutually symmetrically arranged, the lengths of the clamping plates 15 are larger than the distance between the two upright posts 13, sockets are respectively arranged at two ends of the clamping plates 15, and alternatively, the sockets can be Y-shaped sockets and the like; the socket can be clamped with the drawknot plate 14, the clamping plate 15 and the upright post 13 are propped against the template 12 by adopting the support rod group 18, the template 12 is tightly clung to the inner side of the post-pouring belt 7, one end of the support rod group 18 is propped against the clamping plate 15 and the upright post 13, and the other end is fixedly connected to the ground or the top plate of the basement. When the support system is installed, the template 12 is erected on the inner side of the post-pouring belt 7, the template 12 is fixed by adopting temporary support, then two upright posts 13 are respectively erected on the outer wall of two sides of the inner side of the post-pouring belt 7, drawknot plates 14 are fixedly installed on the two upright posts 13 at intervals, clamping plates 15 are sequentially installed, sockets at two ends of the clamping plates 15 are respectively clamped on the drawknot plates 14 of the two upright posts 13, one end of a support rod group 18 is used for propping against the upright posts 13 and the clamping plates 15, and the other end is fixed on the ground and the top plate of the basement, so that the template 12, the upright posts 13 and the clamping plates 15 are fixed. Through using detachable to prop up and establish the system, each partial subassembly turnover of being convenient for has stronger operability and practicality, need not simultaneously to use to drawing the subassembly, avoids forming the water inlet channel in outer wall or post-cast strip department.
In other embodiments, the protection panel 1 is composed of a plurality of trapezoid prefabricated panels, alternatively, the prefabricated panels may have a trapezoid shape in cross section, etc.; the two ends of the section of the precast slab are respectively provided with a preformed hole 5, and the preformed holes 5 penetrate through the precast slab. When assembling, the short sides of the cross section of each precast slab are spliced relatively to the short sides, the reserved holes 5 of each precast slab are made to correspond, the reinforcing steel bars 6 are arranged in the holes, concrete is poured, and after the concrete is solidified, a plurality of precast slabs form a protection plate 1 with a trapezoid cross section. The integral protection plate 1 is formed by splicing a plurality of precast slabs, and the single precast slab is convenient to manufacture, convenient to transport, not easy to damage and convenient to hoist.
In other embodiments, after the waterproof coiled material 3 is adhered to the surface of the protective plate 1 facing the post-pouring belt 7, waterproof additional layers 4 are adhered to two sides of the waterproof coiled material 3, and optionally, polyurethane waterproof coiled materials or modified asphalt waterproof coiled materials and the like can be adopted; the waterproof additional layer 4 is arranged at the junction of the post-cast strip 7 and the outer walls at the two sides of the post-cast strip along the extending direction of the post-cast strip 7, and extends 250mm to the left and right sides of the post-cast strip 7 and the outer walls of the post-cast strip respectively, and the supporting plate 10 is arranged at the lap joint of the waterproof additional layer 4 and the waterproof coiled material 3 and covers the lap joint. During construction, the waterproof coiled material 3 is adhered to one surface, close to the post-pouring strip 7, of the protection plate 1, the back surface of the waterproof additional layer 4 is adhered to the front surface of the waterproof coiled material 3, the width of the waterproof additional layer 4 is 500mm, the waterproof additional layers are arranged at the left and right sides of the junction of the post-pouring strip 7 and the outer wall of the post-pouring strip, the junction of the waterproof coiled material 3 and the waterproof additional layer 4 is covered with a lap joint by using the support plate 10, the protection plate 1 is hoisted at the reserved position of the post-pouring strip 7 by using hoisting equipment, the waterproof coiled material 3 is prevented from falling off in the hoisting process, and the support plate 10 is aligned with the cushion blocks 9 on the steel bars on the outer side of the post-pouring strip 7, so that the waterproof coiled material 3 and the waterproof additional layer 4 are tightly extruded between the protection plate 1 and the support plate 10. Through setting up waterproof additional layer 4 on the protection board 1 to cover the lap seam with backup pad 10, make post-cast strip 7 and post-cast strip both sides outer wall junction waterproof be strengthened, further promote the waterproof effect of basement outer wall.
In other embodiments, the clamping plate 15 is a through-length pi-shaped clamping plate with sockets at two ends, a plurality of strip-shaped fixing holes are alternately formed in the drawknot plate 14 on the upright post 13, wedge-shaped fixing pins 17 are arranged in the fixing holes, the thickness of the wedge-shaped fixing pins 17 is consistent with the width of the fixing holes, the length of the long bottom edges of the wedge-shaped fixing pins 17 is greater than that of the fixing holes, the opening width of the socket of the clamping plate 15 is consistent with the thickness of the drawknot plate 14, the socket of the clamping plate 15 can be clamped with the drawknot plate 14, the clamping plate 15 can be fixed by the wedge-shaped fixing pins 17, a square 16 is further arranged between the clamping plate 15 and the template 12, one surface of the square 16 is tightly attached to the template 12, and the other surface of the square 16 is contacted with the clamping plate 15. When the support system is installed, the template 12 is erected on the inner side of the post-pouring belt 7, the template 12 is fixed by adopting temporary support, then two upright posts 13 are respectively erected on two outer walls on the inner side of the post-pouring belt 7, tie plates 14 are fixedly installed on the two upright posts 13 at intervals, clamping plates 15 are sequentially installed, sockets at two ends of the clamping plates 15 are respectively clamped on the tie plates 14 of the two upright posts 13, a plurality of battens 16 are arranged between the clamping plates 15 and the template 12, the clamping plates 15 are pushed tightly, wedge-shaped fixing pins 17 are used for inserting the fixing holes of the tie plates 14, the battens 15 tightly attach the battens 16 to the template 12, one ends of a supporting rod group 18 are propped against the upright posts 13 and the clamping plates 15, and the other ends of the clamping plates are fixed on the ground and the top plate of a basement, and the templates 12, the upright posts 13 and the clamping plates 15 are integrally fixed. The clamping plate 15, the drawknot plate 14 and the wedge-shaped fixing pin 17 are used, the installation, the fixation or the disassembly of the supporting system are facilitated, the working efficiency is improved, a plurality of battens 16 are arranged between the template 12 and the clamping plate 15, the stress of the template 12 is kept uniform, and casting deformation of the post-cast strip 7 is avoided.
In other embodiments, the side of the protection plate 1, which contacts the post-cast strip 7, is provided with a through-length groove 2, alternatively, the depth and width of the groove 2 can be determined according to the width of the post-cast strip 7, and when the width of the post-cast strip 7 is larger, the depth and width of the groove 2 are increased; when the waterproof coiled material 3 is adhered, the reserved part of the waterproof coiled material 3 is horizontally arranged in the groove 2, the support plate 10 is arranged outside the groove 2, and the waterproof coiled material 3 can be temporarily supported and fixed in the groove 2. Through reserving partial waterproof coiled materials 3 in the common groove 2, when the settlement of the outer walls at two sides of the post-cast strip is uneven, the waterproof coiled materials 3 can be pulled out from the groove 2 by the outer walls at two sides, so that the waterproof effect of the outer walls of the basement is further improved due to the fact that coiled materials are pulled to be torn due to the fact that the settlement of the two sides of the post-cast strip 7 is different.
In other embodiments, the junction of the post-pouring belt 7 and the outer walls at two sides of the post-pouring belt is provided with a water-stop steel plate 11, alternatively, the water-stop steel plate 11 can be in a groove shape or a circular arc shape, and the width of the water-stop steel plate 11 is not less than 300mm; when the water stop steel plate 11 is arranged, the concave surface of the water stop steel plate 11 faces the outer side of the post-pouring strip 7, and the coincidence of the central line of the water stop steel plate 11 and a wall construction joint is ensured as much as possible, so that the best waterproof effect is achieved. The arrangement of the water stop steel plate 11 can effectively isolate underground water, so that the underground water is prevented from penetrating into the basement, and the basement is prevented from being excessively moist.
The invention also provides a construction method of the basement outer wall post-pouring strip pre-closed structure, which comprises the following steps: s1, manufacturing a protection board 1 with a proper size according to construction size requirements, wherein the width of the protection board 1 needs to meet the requirement that the left side and the right side of the protection board 1 can be lapped on outer walls on the two sides of a post-pouring belt 7; s2, installing a plurality of cushion blocks 9 on a transverse reinforcing steel bar net 8 at the outer side of the post-pouring belt 7, so that the cushion blocks 9 are distributed linearly in the vertical direction; s3, sticking a waterproof roll 3 on one surface of the protective plate 1, which is close to the post-pouring strip 7, sticking the back surface of the waterproof roll 3 to the protective plate 1, covering one surface of the protective plate 1, which is contacted with the post-pouring strip 7 and the outer wall of the post-pouring strip, arranging a support plate 10 on the other surface of the waterproof roll 3, vertically arranging the support plate 10 along the waterproof roll 3, supporting the waterproof roll 3 to enable the waterproof roll 3 to be tightly attached to the protective plate 1, then hoisting the protective plate 1 to the position of the post-pouring strip 7 by adopting hoisting equipment, connecting one surface of the protective plate 1, which is stuck with the waterproof roll 3, with the outer walls on two sides of the post-pouring strip and covering the post-pouring strip 7, wherein the support plate 10 on the protective plate 1 is contacted with a cushion block 9 on a transverse reinforcing steel bar 8 on the outer side of the post-pouring strip 7, and the cushion block 9 extrudes the support plate 10 to tightly extrude and support the waterproof roll 3 between the protective plate 1 and the support plate 10; s4, installing a supporting system on the inner side of the post-pouring belt 7, arranging a template 12 on the inner side of the post-pouring belt 7, enabling the left end and the right end of the template 12 to be in contact with outer walls on the two sides of the post-pouring belt, building a supporting assembly on the outer side of the template 12, enabling one end of the supporting assembly to be in contact with the template 12, enabling the other end of the supporting assembly to be fixedly connected to the ground and a top plate of a basement, and fixing the template 12; s5, pouring micro-expansion concrete into the post-cast strip 7, and removing the support assembly and the template 12 after the post-cast strip 7 concrete meets the design strength requirement.
In other embodiments, after the mold plate 12 and the supporting component on the inner side of the post-pouring belt 7 are fixed, the fertilizer tank on the outer side of the post-pouring belt 7 can be backfilled, during the backfilling process, if the backfill soil reaches the strength capable of supporting the protection plate 1, the temporary support on the outer side of the protection plate 1 can be removed, wherein the position close to the post-pouring belt 7 is backfilled by using the earth in the middle of the eighth 22, the position close to the backfill position of the earth in the middle of the eighth 22 is backfilled by using the earth in the middle of the eighth 23, the bottom of the backfill position of the earth in the middle of the eighth 23 is provided with a hidden ditch 19, a broken stone cushion layer is arranged in the hidden ditch 19, the earth in the middle of the seventh 23 is buried by the water pipe 20, one end of the water pipe 20 is communicated with the hidden ditch 19, the other end of the water pipe 20 extends to the top of the backfill position of the earth in the middle of the seventh 23, the top of the earth in the backfill position of the seventh 23 is provided with a self-priming pump 21, and the self-priming pump 21 is communicated with the water pipe 20. The fertilizer groove near the post-pouring belt 7 is filled with the gray soil 22, so that the soft soil layer can be prevented from being eroded by rainwater, the underdrain 19 is arranged at the joint of the backfill part of the gray soil 22 and the backfill part of the plain soil 23, the self-priming pump 21 is connected to the ground, and the self-priming pump 21 can be opened to reduce the water pressure when the water level rises in rainy season, so that the influence of the water pressure on the back-attached waterproof coiled material 3 is eliminated, and the waterproof effect is improved.
In other embodiments, the base part is provided with a cushion 24 under the post-pouring belt and the bottom plate, the cushion 24 is provided with a through-length blind ditch 25 at the joint of the post-pouring belt and the bottom plate, the blind ditch 25 extends to a distance from the post-pouring belt to the bottom plate, a broken stone cushion is arranged in the blind ditch 25, a through-length guide pipe 26 is arranged in the blind ditch 25 along the extending direction of the blind ditch 25, holes are formed in the surface of the guide pipe 26 at intervals, one end of the guide pipe 26 is closed, the other end extends to the outer wall of the basement, the length of the guide pipe 26 is consistent with that of the blind ditch 25, optionally, PVC pipes with holes formed in the surface at intervals can be adopted, and when the size of the holes meets grouting, slurry can flow out of the holes freely. When the construction work of the post-pouring belt of the foundation part is carried out, two blind ditches 25 are formed in the position of the reserved cushion layer 24, the blind ditches 25 are positioned at the joint of the post-pouring belt of the foundation part and the bottom plate, a perforated guide pipe 26 and a broken stone cushion layer are arranged in the blind ditches 25, the tail end of the guide pipe 26 is blocked and goes deep into the blind ditches 25, the other end of the guide pipe 26 extends to the outer wall of the basement, then the casting construction of the post-pouring belt is carried out, after the post-pouring belt is closed, the post-pouring belt concrete reaches the age, grouting is carried out in the guide pipe 26 through a grouting pipe, and optionally, cement-based permeable crystallization waterproof agent with the cement mass of 0.9-2.0% can be doped in the slurry; the slurry flows out of the holes of the conduit 26, closing the space in the pipe and the gravel cushion. Through set up blind drain 25 and reserve pipe 26 outside the foundation portion bed course 24, after the post-cast strip seals, pour into thick liquid into pipe 26 and seal blind drain 25 to make blind drain 25 cover and seal post-cast strip and bottom plate junction, reduce the water inlet channel, improve the water-proof effects.
The number of equipment and the scale of processing described herein are intended to simplify the description of the present invention. Applications, modifications and variations to the basement exterior wall post-cast strip pre-closure structure and construction method of the present invention will be apparent to those skilled in the art.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims (10)

1. Basement outer wall post-cast strip pre-close structure, its characterized in that includes:
the post-pouring strip is internally reserved with post-pouring strip steel bars, and cushion blocks are arranged on the steel bars outside the post-pouring strip steel bars;
the protective plate is arranged outside the post-pouring belt, two sides of the protective plate extend to outer walls at two sides of the post-pouring belt, one side, far away from the post-pouring belt, of the protective plate is provided with a temporary support, the other side is provided with a waterproof coiled material covering the protective plate along the extending direction of the post-pouring belt, one side, close to the post-pouring belt, of the waterproof coiled material is provided with a supporting plate, and the supporting plate is in contact with the cushion block;
the support system is arranged on the inner side of the post-pouring strip and comprises a template and a supporting component, wherein the template is arranged on the inner side of the post-pouring strip, and the supporting component is used for fixing the template.
2. The basement outer wall post-cast strip pre-sealing structure according to claim 1, wherein the supporting component comprises two upright posts, a plurality of clamping plates and a supporting rod group, the two upright posts are arranged at outer walls on two sides of the post-cast strip, tie plates are arranged on the two upright posts at intervals, the extending direction of the tie plates is perpendicular to the post-cast strip, the clamping plates are clamped with the tie plates on the two upright posts, and the supporting rod group is arranged on the outer sides of the upright posts and the clamping plates and used for fixing the templates, the upright posts and the clamping plates.
3. The basement exterior wall post-cast strip pre-sealing structure according to claim 1, wherein the protection plate comprises a plurality of trapezoid precast plates, preformed holes are formed in the precast plates, the preformed holes are along the extending direction of the post-cast strip, the precast plates are correspondingly spliced according to the preformed holes, and steel bar casting concrete is arranged in the preformed holes to form the protection plate.
4. The basement outer wall post-cast strip pre-closing structure according to claim 1, wherein a waterproof additional layer is further arranged on one side, close to the post-cast strip, of the waterproof coiled material, the waterproof additional layer is arranged at the joint of the post-cast strip and the post-cast strip outer wall, the extending direction of the waterproof additional layer is consistent with the extending direction of the waterproof coiled material, and the supporting plate covers a lap joint of the waterproof additional layer and the waterproof coiled material.
5. The basement outer wall post-cast strip pre-sealing structure according to claim 2, wherein the clamping plates are through-length pi-shaped clamping plates with sockets at two ends, elongated fixing holes are alternately formed in the drawknot plates, wedge-shaped fixing pins are arranged in the fixing holes, the sockets of the clamping plates are clamped with the drawknot plates, so that the clamping plates are fixed between the upright posts and the wedge-shaped fixing pins, and a square is arranged between the clamping plates and the templates.
6. The basement exterior wall post-cast strip pre-sealing structure according to claim 1, wherein a groove is formed in one side of the protective plate, which is close to the post-cast strip, along the extending direction of the post-cast strip, and the waterproof coiled material reserved part is arranged in the groove.
7. The basement exterior wall post-cast strip pre-sealing structure according to claim 1, wherein a water stop steel plate is arranged at the junction of the post-cast strip and the exterior walls at two sides of the post-cast strip.
8. The construction method based on the basement exterior wall post-cast strip pre-closed structure according to any one of claims 1 to 7 is characterized by comprising the following steps:
s1, manufacturing a protection plate according to construction size requirements;
s2, installing cushion blocks on the steel bars outside the post-pouring belt;
s3, sticking a waterproof coiled material on one surface of the protective plate, which is close to the post-pouring belt, wherein a supporting plate is arranged on the outer side of the waterproof coiled material, and the protective plate is fixed by using a temporary support, so that one surface of the protective plate, which is stuck with the waterproof coiled material, is connected with the outer side of the post-pouring belt, and the supporting plate is contacted with a cushion block on the reinforcing steel bar outside the post-pouring belt;
s4, installing a supporting system on the inner side of the post-pouring belt, arranging a template on the inner side of the post-pouring belt, and fixing the template by using a supporting component;
s5, pouring concrete into the post-pouring belt, and dismantling the supporting system after the post-pouring belt concrete meets the design strength requirement.
9. The construction method of the pre-closed structure of the post-pouring strip of the basement exterior wall according to claim 8, wherein after the installation of the supporting system is completed, layered backfilling of the fertilizer tank is started, the temporary support is removed during backfilling, the position close to the post-pouring strip is backfilled with gray soil, the rest position is backfilled with plain soil, a blind ditch is arranged at the position of the plain soil backfilling close to the gray soil backfilling, a part of the plain soil backfilling is buried with a water pipe in a hidden mode, one end of the water pipe is communicated with the blind ditch, and the other end of the water pipe extends to the ground and is connected with a self-sucking pump.
10. The construction method of the pre-closed structure of the post-pouring strip of the basement outer wall according to claim 8, wherein a cushion layer is reserved in the foundation part in advance, blind ditches are arranged below the joint of the post-pouring strip and bottom plates at two sides of the post-pouring strip, guide pipes with open surfaces are arranged in the blind ditches, and grouting is conducted in the guide pipes through grouting pipes after the construction of the post-pouring strip of the foundation part is completed.
CN202410078927.0A 2024-01-19 2024-01-19 Basement outer wall post-pouring belt pre-sealing structure and construction method Pending CN117646497A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118187153A (en) * 2024-04-18 2024-06-14 广州一建建设集团有限公司 Basement outer wall settlement post-pouring strip sealing structure and construction method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118187153A (en) * 2024-04-18 2024-06-14 广州一建建设集团有限公司 Basement outer wall settlement post-pouring strip sealing structure and construction method thereof

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