CN113374263A - Construction method for closing settled post-cast strip in advance - Google Patents
Construction method for closing settled post-cast strip in advance Download PDFInfo
- Publication number
- CN113374263A CN113374263A CN202110811966.3A CN202110811966A CN113374263A CN 113374263 A CN113374263 A CN 113374263A CN 202110811966 A CN202110811966 A CN 202110811966A CN 113374263 A CN113374263 A CN 113374263A
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- China
- Prior art keywords
- post
- water retaining
- prefabricated cover
- cast strip
- cover plates
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6801—Fillings therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6803—Joint covers
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a construction method for closing a post-sedimentation casting strip in advance, which comprises the following steps: s1, after the top plates on two sides of the settled post-cast strip are constructed, symmetrically pouring water retaining ridges at positions 130-180 mm away from a construction joint on two sides of the post-cast strip, wherein the water retaining ridges are provided with tongue-and-grooves and are used as supports for placing prefabricated cover plates of the post-cast strip; s2, after the water retaining bank is maintained for 7 days, prefabricated cover plates prefabricated in advance are sequentially placed on a rabbet of the water retaining bank, and the prefabricated cover plates cover the settled post-pouring strip; s3, sealing gaps between the prefabricated cover plates and gaps between the water retaining ridges and the prefabricated cover plates tightly by using sealing factice; s4, arranging steel sleeves of DN125 every 6-8 m on the paved row of prefabricated cover plates, wherein one end of each steel sleeve penetrates through the prefabricated cover plate; and S5, constructing the prefabricated cover plate, the water retaining ridge and the waterproof layer and the protective layer on the steel sleeve according to the garage roof waterproof method, and normally backfilling soil. The invention realizes the advanced sealing measure of the post-cast strip, can carry out engineering construction such as top plate backfill, outdoor pipe network and the like in advance, and shortens the construction period.
Description
Technical Field
The invention belongs to the technical field of construction of post-cast strips of constructional engineering, and particularly relates to a construction method for closing a settlement post-cast strip in advance.
Background
The arrangement of the post-sedimentation pouring belt is to solve the sedimentation difference between a main building of a high-rise building and a skirt house or an underground garage, reduce the influence of differential sedimentation between foundations on the foundations and an upper structure, and pour the main structure after the sedimentation is basically stable. In actual construction, the roof sealing of a building main body and observation after the masonry of brick masonry are finished are required for a period of time, and a post-cast strip can be sealed after the settlement is basically stable, so that the post-cast strip can be left for a long time, particularly for high-rise buildings, and the retention time can be up to one year or even longer.
The existence of the post-cast strip causes a plurality of adverse effects, such as rainwater flowing into a basement from the post-cast strip, rusting of reserved steel bars, incapability of backfilling a top plate of the garage, incapability of communicating construction transportation roads, incapability of intervening outdoor construction in advance, prolonged construction period and the like. When soil needs to be backfilled in advance or a construction transportation channel needs to be arranged, corresponding measures need to be taken for the post-sedimentation pouring belt, such as steel plate paving, or methods that low-grade concrete is locally adopted for pouring, and chiseling is carried out at the later stage. However, these methods have some quality and safety risks, and cannot fundamentally solve the problem that the post-cast strip affects subsequent construction such as outdoor backfill and the like.
Although a patent No. CN201820460073 discloses a 'basement post-cast strip advanced sealing structure', the structure is complex, the operation is troublesome during construction, and the construction process is complicated; and the patent is only suitable for sealing the outer wall of the basement. The invention is suitable for closing the top plate of the basement in advance, and the concrete pouring and closing modes of the top plate and the basement are essentially different.
Disclosure of Invention
The invention aims to provide a construction method for closing a post-sedimentation casting strip in advance, which aims to overcome the defects of the prior art.
In order to achieve the purpose, the invention provides the following scheme: a construction method for closing a post-cast strip in advance by settlement comprises the following steps:
s1, after the roof construction on two sides of a settled post-cast strip is finished, symmetrically pouring water retaining ridges at positions 130-180 mm away from a construction joint on two sides of the post-cast strip, wherein the inner sides of the water retaining ridges are provided with tongue-and-grooves and are used as supports for placing prefabricated cover plates of the post-cast strip;
s2, after the water retaining bank is maintained for 7 days, prefabricated cover plates prefabricated in advance are sequentially placed on a rabbet of the water retaining bank, and the prefabricated cover plates cover the settled post-pouring strip;
s3, sealing gaps between the prefabricated cover plates and gaps between the water retaining ridges and the prefabricated cover plates tightly by using sealing factice;
s4, arranging steel sleeves of DN125 every 6-8 m on the paved row of prefabricated cover plates, wherein one end of each steel sleeve penetrates through the prefabricated cover plate;
and S5, constructing the prefabricated cover plate, the water retaining ridge and the waterproof layer and the protective layer on the steel sleeve according to the garage roof waterproof method, and normally backfilling soil.
Preferably, the water retaining ridge is of an L-shaped structure, and the thickness of the end provided with the rabbet is 50 mm.
Preferably, a waterproof chamfer is arranged at one end of the water retaining bank far away from the post-sedimentation pouring belt.
Preferably, two ends of the prefabricated cover plate are provided with cover plate handles.
On the premise of not changing the technical requirements of the existing design, the invention furthest reduces the adverse effect of the settled post-cast strip on the construction, realizes the advanced sealing measure of the post-cast strip, ensures the smoothness of the construction road, can carry out engineering construction such as top plate backfill, outdoor pipe network and the like in advance and shortens the construction period.
Drawings
FIG. 1 is a schematic view of the early stage closure of the present invention;
FIG. 2 is a schematic view of a prefabricated cover plate placed on a water dam;
FIG. 3 is a schematic illustration of the post-sealing of the present invention;
in the figure: 1-prefabricated cover plate, 2-water retaining ridge, 3-waterproof chamfer, 4-garage top plate, 5-steel sleeve, 6-waterproof layer and protective layer, 7-sealing ointment and 8-cover plate handle.
Detailed Description
Embodiments of the present invention will now be described with reference to the accompanying drawings, and those skilled in the art will understand that the following embodiments are illustrative of the present invention only, and should not be construed as limiting the scope of the present invention. In the examples, specific techniques, connections, conditions, and processes are not specified, but are performed according to the techniques, connections, conditions, processes, and product specifications described in the literature in the art. The materials, instruments or equipment are not indicated by manufacturers, and all the materials, instruments or equipment are conventional products which can be obtained by purchasing.
Referring to fig. 1-3, a construction method for closing a post-settlement casting strip in advance comprises the following steps:
s1, after the roof construction on two sides of the settled post-cast strip is finished, symmetrically pouring water retaining ridges 2 at the positions, 150mm away from a construction joint, of the two sides of the post-cast strip, wherein the inner sides of the water retaining ridges 2 are provided with tongue-and-grooves, so that the water retaining function is achieved, and the water retaining ridges can be used as supports for placing prefabricated cover plates of the post-cast strip;
s2, after the water retaining bank 2 is maintained for 7 days, the prefabricated cover plates 1 prefabricated in advance are sequentially placed on the rabbet of the water retaining bank 2, and the prefabricated cover plates 1 cover the post-sedimentation pouring belt; a waterproof chamfer 3 is arranged at one end of the water retaining bank 2 far away from the post-sedimentation pouring strip; two ends of the prefabricated cover plate 1 are provided with cover plate handles 8;
s3, sealing gaps between the prefabricated cover plates 1 and gaps between the water retaining ridges and the prefabricated cover plates 1 tightly by using sealing factice 7;
s4, arranging steel sleeves 5 of DN125 every 7m on the paved row of prefabricated cover plates 1, and enabling one ends of the steel sleeves 5 to penetrate through the prefabricated cover plates; the steel sleeve 5 is used for concrete pouring and air exhaust, and the concrete can adopt micro-expansion self-compaction concrete with a first grade;
s5, constructing the prefabricated cover plate 1, the water retaining ridge 2 and the waterproof layer and the protective layer 6 on the steel sleeve 5 according to the garage roof waterproof method, and then normally backfilling soil.
According to a further optimized scheme, the water retaining ridge 2 is of an L-shaped structure, and the thickness of the end provided with the rabbet is 50mm, so that the filling density during subsequent sealing of the post-sedimentation pouring belt can be guaranteed, and the thickness meets the design requirement, as shown in fig. 3.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (4)
1. The construction method for closing the post-cast strip in advance by settlement is characterized by comprising the following steps:
s1, after the roof construction on two sides of a settled post-cast strip is finished, symmetrically pouring water retaining sills (2) at positions 130-180 mm away from a construction joint on two sides of the post-cast strip, wherein the inner sides of the water retaining sills (2) are provided with tongue-and-groove joints and are used as supports for placing prefabricated cover plates of the post-cast strip;
s2, after the water retaining bank (2) is maintained for 7 days, the prefabricated cover plates (1) prefabricated in advance are sequentially placed on the rabbet of the water retaining bank (2), and the prefabricated cover plates (1) cover the settled post-pouring strip;
s3, sealing gaps between the prefabricated cover plates (1) and gaps between the water retaining ridges and the prefabricated cover plates (1) tightly by using sealing factice (7);
s4, arranging steel sleeves (5) of DN125 every 6-8 m on the paved row of prefabricated cover plates (1), and enabling one ends of the steel sleeves (5) to penetrate through the prefabricated cover plates;
s5, constructing the prefabricated cover plate (1), the water retaining ridge (2) and the waterproof layer and the protective layer (6) on the steel sleeve (5) according to the garage roof waterproof method, and then normally backfilling soil.
2. The construction method for closing the post-cast strip in advance by settlement according to claim 1, wherein: the water retaining ridge (2) is of an L-shaped structure, and the thickness of one end provided with the tongue-and-groove is 50 mm.
3. The construction method for closing the post-cast strip in advance by sedimentation according to claim 1 or 2, characterized in that: and a waterproof chamfer (3) is arranged at one end of the water retaining ridge (2) far away from the post-sedimentation pouring strip.
4. The construction method for closing the post-cast strip in advance by settlement according to claim 1, wherein: and cover plate handles (8) are arranged at two ends of the prefabricated cover plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110811966.3A CN113374263A (en) | 2021-07-19 | 2021-07-19 | Construction method for closing settled post-cast strip in advance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110811966.3A CN113374263A (en) | 2021-07-19 | 2021-07-19 | Construction method for closing settled post-cast strip in advance |
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| Publication Number | Publication Date |
|---|---|
| CN113374263A true CN113374263A (en) | 2021-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110811966.3A Pending CN113374263A (en) | 2021-07-19 | 2021-07-19 | Construction method for closing settled post-cast strip in advance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115387392A (en) * | 2022-08-23 | 2022-11-25 | 中国五冶集团有限公司 | Basement post-cast strip construction structure and method |
| CN115506404A (en) * | 2022-10-18 | 2022-12-23 | 中国二十二冶集团有限公司 | Post-construction method for underground structure top plate construction hole |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2519517A1 (en) * | 1974-05-07 | 1975-11-20 | Sif Entreprise | METHOD OF SEALING BETWEEN PREFABRICATED PANELS OF A WALL IN THE FLOOR AND DEVICE FOR CARRYING OUT THE METHOD |
| CN104805870A (en) * | 2015-04-16 | 2015-07-29 | 中国二十二冶集团有限公司 | Construction method for first soil filling and then casting at settlement post-cast strip of top plate of basement |
| CN106436930A (en) * | 2016-09-29 | 2017-02-22 | 中建二局第三建筑工程有限公司 | Above-ground over-limit settlement post-cast strip structure system and construction method thereof |
| JP2017071955A (en) * | 2015-10-07 | 2017-04-13 | 株式会社竹中工務店 | Construction method for structure |
| CN106869188A (en) * | 2017-04-07 | 2017-06-20 | 黄以恒 | The constructing structure and its construction method of a kind of sole plate post-poured strip anti-seep water |
| CN107190782A (en) * | 2017-06-09 | 2017-09-22 | 江西建工第二建筑有限责任公司 | A kind of poured band of outer wall of basement structure and its construction method |
| CN206635820U (en) * | 2017-04-07 | 2017-11-14 | 黄以恒 | A kind of constructing structure of sole plate post-poured strip anti-seep water |
| CN108385981A (en) * | 2018-03-26 | 2018-08-10 | 中建八局第三建设有限公司 | A kind of outdoor basement roof post-cast strip anti-seepage construction method |
| CN108396783A (en) * | 2018-05-17 | 2018-08-14 | 中冶天工集团天津有限公司 | A kind of pre- closure grouting devices and methods therefor of basement roof pouring after settlement |
| CN209323574U (en) * | 2018-10-09 | 2019-08-30 | 中建二局第二建筑工程有限公司 | Closed basement roof pouring after settlement structure in advance |
| CN211113772U (en) * | 2019-09-23 | 2020-07-28 | 中建一局集团第三建筑有限公司 | Post-cast strip structure for top plate of underground chamber |
| CN212129251U (en) * | 2020-04-30 | 2020-12-11 | 中国建筑第七工程局有限公司 | Advanced sealing structure of post-cast strip subsides |
-
2021
- 2021-07-19 CN CN202110811966.3A patent/CN113374263A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2519517A1 (en) * | 1974-05-07 | 1975-11-20 | Sif Entreprise | METHOD OF SEALING BETWEEN PREFABRICATED PANELS OF A WALL IN THE FLOOR AND DEVICE FOR CARRYING OUT THE METHOD |
| CN104805870A (en) * | 2015-04-16 | 2015-07-29 | 中国二十二冶集团有限公司 | Construction method for first soil filling and then casting at settlement post-cast strip of top plate of basement |
| JP2017071955A (en) * | 2015-10-07 | 2017-04-13 | 株式会社竹中工務店 | Construction method for structure |
| CN106436930A (en) * | 2016-09-29 | 2017-02-22 | 中建二局第三建筑工程有限公司 | Above-ground over-limit settlement post-cast strip structure system and construction method thereof |
| CN106869188A (en) * | 2017-04-07 | 2017-06-20 | 黄以恒 | The constructing structure and its construction method of a kind of sole plate post-poured strip anti-seep water |
| CN206635820U (en) * | 2017-04-07 | 2017-11-14 | 黄以恒 | A kind of constructing structure of sole plate post-poured strip anti-seep water |
| CN107190782A (en) * | 2017-06-09 | 2017-09-22 | 江西建工第二建筑有限责任公司 | A kind of poured band of outer wall of basement structure and its construction method |
| CN108385981A (en) * | 2018-03-26 | 2018-08-10 | 中建八局第三建设有限公司 | A kind of outdoor basement roof post-cast strip anti-seepage construction method |
| CN108396783A (en) * | 2018-05-17 | 2018-08-14 | 中冶天工集团天津有限公司 | A kind of pre- closure grouting devices and methods therefor of basement roof pouring after settlement |
| CN209323574U (en) * | 2018-10-09 | 2019-08-30 | 中建二局第二建筑工程有限公司 | Closed basement roof pouring after settlement structure in advance |
| CN211113772U (en) * | 2019-09-23 | 2020-07-28 | 中建一局集团第三建筑有限公司 | Post-cast strip structure for top plate of underground chamber |
| CN212129251U (en) * | 2020-04-30 | 2020-12-11 | 中国建筑第七工程局有限公司 | Advanced sealing structure of post-cast strip subsides |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115387392A (en) * | 2022-08-23 | 2022-11-25 | 中国五冶集团有限公司 | Basement post-cast strip construction structure and method |
| CN115387392B (en) * | 2022-08-23 | 2023-12-15 | 中国五冶集团有限公司 | Basement post-pouring strip construction structure and method |
| CN115506404A (en) * | 2022-10-18 | 2022-12-23 | 中国二十二冶集团有限公司 | Post-construction method for underground structure top plate construction hole |
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