CN114922231B - Waterproof construction method for intersection of foundation slab and side wall - Google Patents
Waterproof construction method for intersection of foundation slab and side wall Download PDFInfo
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- CN114922231B CN114922231B CN202210524098.5A CN202210524098A CN114922231B CN 114922231 B CN114922231 B CN 114922231B CN 202210524098 A CN202210524098 A CN 202210524098A CN 114922231 B CN114922231 B CN 114922231B
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- coiled material
- guide wall
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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Abstract
The invention discloses a waterproof construction method for a junction of a foundation slab and a side wall. After the concrete is poured, the concrete and the waterproof coiled material are poured and formed once, and the concrete and the waterproof coiled material can form good chemical reaction in the initial setting process, so that the concrete and the waterproof coiled material are firmly adhered. When the outer wall is constructed to be waterproof, the waterproof coating of the outer wall and the waterproof coiled material at the guide wall are subjected to lap joint treatment, so that a good waterproof effect is achieved. The invention solves the problem that the waterproof coiled material at the junction of the bottom plate and the wall root of the side wall is constructed by the traditional method, and the junction is easy to leak in the later stage.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a waterproof construction method for a junction of a foundation slab and a side wall.
Background
At present, a self-adhesive film waterproof coiled material is mostly adopted as a waterproof material of a foundation slab, and the self-adhesive film waterproof coiled material and the waterproof coiled material are further tightly combined in the concrete solidification process, so that a good waterproof effect can be achieved. The side waterproof method of the prior bottom plate is to reserve a section of waterproof coiled material at the side of the bottom plate, and fold and fix the reserved waterproof coiled material on the upper surface of the bottom plate and the outer side surface of the guide wall after concrete is solidified.
At present, the side edge waterproof method of the traditional bottom plate is that the concrete of the upper surface of the bottom plate and the guide wall is solidified, so that the waterproof coiled material turned back cannot be tightly combined with the bottom plate and the guide wall, and the junction of the bottom plate and the side wall is often leaked.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
In order to overcome the defects in the prior art, a waterproof construction method for the junction of a foundation slab and a side wall is provided at present, so that the problem that leakage easily occurs at the junction of the foundation slab and the wall root of the side wall in the traditional construction method is solved.
In order to achieve the above purpose, a waterproof construction method for the junction of a foundation slab and a side wall is provided, which comprises the following steps:
paving a waterproof coiled material on a cushion layer, and after a support changing belt paved to a bottom plate is paved to the top of the support changing belt along the support changing belt in a turning way and reserving a preset length;
a reinforcing steel bar structure of the bottom plate is supported on the waterproof coiled material, and guide wall dowel bars are arranged on the reinforcing steel bar structure;
paving overhanging templates arranged along the plate surface direction of the top of the bottom plate on the top of the support changing belt, so that the overhanging templates extend to the upper part of the steel bar structure;
paving the reserved waterproof coiled material at the bottom of the overhanging template and extending to the guide wall dowel bar, so that the reserved part of the waterproof coiled material is arranged along the top direction of the bottom plate;
installing guide wall hanging molds on two sides of the guide wall dowel bars, and turning up the reserved rest of the waterproof coiled materials and paving the waterproof coiled materials on the inner sides of the guide wall hanging molds;
pouring the bottom plate and the guide wall to enable the waterproof coiled material to be tightly combined with the bottom plate and the concrete of the guide wall.
Further, the method further comprises the following steps:
dismantling the overhanging template and the guide wall hanging die, and cutting off the waterproof coiled material exceeding the top of the guide wall;
pouring a side wall on the upper part of the guide wall, and paving grid cloth at a construction joint of the guide wall and the side wall;
and integrally coating waterproof coatings on the outer sides of the side walls, the guide walls, the bottom plate and the top surfaces of the support changing belts.
Further, after the waterproof coiled material is paved, a cushion block is embedded at the upturned position of the waterproof coiled material, and the corner of the cushion block is matched with an internal corner formed between the support changing belt and the cushion layer, so that the waterproof coiled material is tightly attached to the root of the support changing belt and the bottom plate, and the internal corner is prevented from generating a hollowing phenomenon.
Further, after the reserved waterproof coiled material is laid at the bottom of the overhanging template and extends to the guide wall dowel, the rest waterproof coiled material is temporarily fixed to the guide wall dowel, so that the rest waterproof coiled material is arranged along the length direction of the guide wall dowel.
Further, the step of laying the overhanging template arranged along the plate surface direction of the top of the bottom plate at the top of the support replacing belt comprises the following steps of:
the cantilever template is provided with a fixed side and a cantilever side which are opposite to each other, and the fixed side is placed on the support changing belt, so that the cantilever side extends to the outer side face of the guide wall;
and placing a weight member on the upper part of the fixed side to compact the fixed side.
Further, when the step of integrally coating the outer side of the side wall, the guide wall, the bottom plate and the top surface of the support changing belt with a waterproof coating is implemented, two polyurethane waterproof coatings are coated on the outer side of the side wall, the guide wall, the bottom plate and the top surface of the support changing belt to form the waterproof coating.
The waterproof construction method has the beneficial effects that the waterproof coiled materials at the base plate and the side wall part are turned up to the guide wall construction joint and fixed in place before the concrete of the base plate is poured. After the concrete is poured, the concrete and the waterproof coiled material are poured and formed once, and the concrete and the waterproof coiled material can form good chemical reaction in the initial setting process, so that the concrete and the waterproof coiled material are firmly adhered. When the outer wall is constructed to be waterproof, the waterproof coating of the outer wall and the waterproof coiled material at the guide wall are subjected to lap joint treatment, so that a good waterproof effect is achieved. The waterproof construction method for the intersection of the foundation slab and the side wall can save a large amount of labor for cleaning the fertilizer groove and fixing the upturned waterproof coiled material, and avoid potential safety hazards of workers during operation in a narrow space such as the fertilizer groove.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:
fig. 1 to 5 are schematic step diagrams of a waterproof construction method for a junction of a foundation slab and a side wall according to an embodiment of the present invention.
Detailed Description
The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the invention are shown in the drawings.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1 to 5, the invention provides a waterproof construction method for a junction of a foundation slab and a side wall, which comprises the following steps:
s1: the waterproof coiled material 1 is paved on the cushion layer 2, the support changing belt 3 paved to the bottom plate is upwards turned and paved to the top of the support changing belt 3 along the support changing belt 3, and a preset length L is reserved.
Referring to fig. 1, a first enclosure 21, a bedding 2, and a stay strip 3 on the bedding. After the cushion layer of the bottom plate is poured and reaches a certain strength, the waterproof coiled material laying work is started. According to the distance from the side wall to the edge of the bottom plate (the joint of the bottom plate and the support changing belt) and the height of the guide wall, the length L of the waterproof coiled material is required to be reserved.
In some embodiments, after laying the waterproof coiled material 1 and hard rolling with a rubber roller to discharge air, laying, pasting, extruding and compacting the root of the support-changing belt of the bottom plate, embedding a cushion block 10 at the upturned position of the waterproof coiled material 1, and matching the corner of the cushion block 10 with the internal corner formed between the support-changing belt 3 and the cushion layer 2, so that the waterproof coiled material 1 is tightly attached to the root of the support-changing belt 3 and the bottom plate 9, and the internal corner is prevented from generating a hollowing phenomenon.
In this embodiment, the cushion is a concrete cushion, and the cushion later stage is used for supporting in the reinforced bar structure of bottom plate.
S2: a reinforcing steel bar structure 4 of the bottom plate is supported on the waterproof coiled material 1, and guide wall dowel bars 5 are arranged on the reinforcing steel bar structure 4.
Referring to fig. 2, after the waterproof coiled material of the side wall of the cushion layer and the support replacing belt is laid, the steel bar structure 4 of the bottom plate is supported, and the guide wall dowel 5 is installed on the steel bar structure 4.
When the bottom reinforcement of the steel bar structure of the bottom plate is bound, the concrete cushion block with the root part is further compacted, so that the hollow phenomenon of the internal corner is prevented. In the binding process of the reinforcing steel bars, the protection of the finished product of the waterproof coiled material is paid attention to, and the support of the reinforcing steel bar support upright post is needed near the support changing belt, so that the waterproof coiled material is prevented from being deformed along with the reinforcing steel bar overhanging in the upper layer.
S3: and paving overhanging templates 6 arranged along the plate surface direction of the top of the bottom plate on the top of the support changing belt 3, so that the overhanging templates 6 extend to the upper part of the reinforced structure 4.
With continued reference to fig. 2, specifically, step S3 includes:
s31, the overhanging template 6 is provided with a fixed side and an overhanging side which are opposite, and the fixed side is placed on the support changing belt 3, so that the overhanging side extends to the outer side surface of the guide wall;
s32, placing the weight 31 on the upper portion of the fixed side to compact the fixed side.
In the process of turning over and fixing the waterproof coiled material, the external corners of the side edges of the bottom plate and the internal corners of the side walls are required to be folded into the shape of edges. As shown in the figure, after the fixing is completed, the overhanging templates are placed at the tops of the support changing belt and the bottom plate, and are compacted by weights, namely weight pieces, so that the impression quality of the concrete after casting molding is ensured.
S4: the reserved waterproof coiled material 1 is paved at the bottom of the overhanging template 6 and extends to the guide wall dowel 5, so that the reserved part of waterproof coiled material 11 is arranged along the direction of the top of the bottom plate.
With continued reference to fig. 2, after the reserved waterproof roll 1 is laid on the bottom of the overhanging template 6 and extends to the guide wall dowel 5, the remaining waterproof roll 12 is temporarily fixed to the guide wall dowel 5, so that the remaining waterproof roll 12 is disposed along the length direction of the guide wall dowel 5.
S5: referring to fig. 3, guide wall hanging molds 7 are installed at both sides of the guide wall dowel 5, and the reserved remaining waterproof coiled material 12 is turned up and laid on the inner side of the guide wall hanging mold 7.
After the installation of the guide wall hanging die is completed, the rest of the waterproof coiled material 12 is tightly attached to the inner side of the guide wall template (when the waterproof coiled material at the early stage is reserved, the reserved length is considered, the waterproof coiled material is ensured to be 10cm higher than the top of the guide wall template), and the 10cm higher than the waterproof coiled material is outwards folded and fixed at the top of the side die, so that the appearance of floating slurry on the outer surface of the waterproof coiled material at the later stage is prevented. And the waterproof coiled material is fixed through the extrusion of the concrete cushion blocks and the side wall templates, so that the paving smoothness of the waterproof coiled material and the guide wall templates is ensured.
When the guide wall is hung, the waterproof coiled material can be perforated due to the fact that the waterproof screw rod needs to penetrate through the template and the waterproof coiled material, and the side wall water seepage problem cannot be caused due to the characteristic that the material is tightly combined with concrete.
S6: and pouring the bottom plate and the guide wall 8 to tightly combine the waterproof coiled material 1 with the concrete of the bottom plate and the guide wall 8.
When the bottom plate concrete is poured, the concrete at the position needs to be slowly poured and fully vibrated, and special attention is paid to the compaction of the filling and vibrating of the concrete at the corners. When the guide wall concrete is poured, concrete is not poured between the waterproof coiled material and the guide wall side die, so that the outer surface of the waterproof coiled material is floated to influence the quality of the outer wall.
S7: referring to fig. 4, the cantilever formwork 6 and the guide wall hanging formwork 7 are removed, and the waterproof roll 1 exceeding the top of the guide wall is cut off.
After the guide wall and the bottom plate concrete are initially set, the guide wall hanging die is removed, and the waterproof coiled material which is higher than the top of the guide wall is cut off, so that the waterproof coiled material is enabled to be flat with the guide wall and cling to the guide wall without gaps.
S8: referring to fig. 5, a side wall 81 is poured on the upper portion of the guide wall, and a mesh cloth is laid at the construction joint between the guide wall and the side wall.
S9: the outer side of the side wall, the guide wall, the bottom plate and the top surface of the support changing belt 3 are integrally coated with a waterproof coating 82.
When the step of integrally coating the waterproof coating 82 on the outer side of the side wall, the guide wall, the bottom plate 9 and the top surface of the support changing belt 3 is implemented, two polyurethane waterproof coatings with the thickness of 1.5mm are coated on the outer side of the side wall, the guide wall, the bottom plate 9 and the top surface of the support changing belt 3 to form the waterproof coating 82.
According to the waterproof construction method for the intersection of the foundation slab and the side wall, before the concrete of the foundation slab is poured, the waterproof coiled materials of the foundation slab and the side wall are turned up to the construction joint of the guide wall and fixed in place. After the concrete is poured, the concrete and the waterproof coiled material are poured and formed once, and the concrete and the waterproof coiled material can form good chemical reaction in the initial setting process, so that the concrete and the waterproof coiled material are firmly adhered. When the outer wall is constructed to be waterproof, the waterproof coating of the outer wall and the waterproof coiled material at the guide wall are subjected to lap joint treatment, so that a good waterproof effect is achieved. The waterproof construction method for the intersection of the foundation slab and the side wall can save a large amount of labor for cleaning the fertilizer groove and fixing the upturned waterproof coiled material, and avoid potential safety hazards of workers during operation in a narrow space such as the fertilizer groove.
The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by persons skilled in the art that the scope of the invention referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the invention. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.
Claims (5)
1. The waterproof construction method for the intersection of the foundation slab and the side wall is characterized by comprising the following steps of:
paving a waterproof coiled material on a cushion layer, and after a support changing belt paved to a bottom plate is paved to the top of the support changing belt along the support changing belt in a turning way and reserving a preset length;
a reinforcing steel bar structure of the bottom plate is supported on the waterproof coiled material, and guide wall dowel bars are arranged on the reinforcing steel bar structure;
paving overhanging templates arranged along the plate surface direction of the top of the bottom plate on the top of the support changing belt, so that the overhanging templates extend to the upper part of the steel bar structure;
paving the reserved waterproof coiled material at the bottom of the overhanging template and extending to the guide wall dowel bar, so that the reserved part of the waterproof coiled material is arranged along the top direction of the bottom plate;
installing guide wall hanging molds on two sides of the guide wall dowel bars, and turning up the reserved rest of the waterproof coiled materials and paving the waterproof coiled materials on the inner sides of the guide wall hanging molds;
pouring the bottom plate and the guide wall to enable the waterproof coiled material to be tightly combined with the concrete of the bottom plate and the guide wall;
after the reserved waterproof coiled material is laid at the bottom of the overhanging template and extends to the guide wall dowel, temporarily fixing the rest waterproof coiled material on the guide wall dowel, so that the rest waterproof coiled material is arranged along the length direction of the guide wall dowel;
the waterproof coiled material at the base plate and the side wall is turned up to the guide wall construction joint.
2. The method of waterproofing a junction of a foundation slab and a side wall according to claim 1, further comprising:
dismantling the overhanging template and the guide wall hanging die, and cutting off the waterproof coiled material exceeding the top of the guide wall;
pouring a side wall on the upper part of the guide wall, and paving grid cloth at a construction joint of the guide wall and the side wall;
and integrally coating waterproof coatings on the outer sides of the side walls, the guide walls, the bottom plate and the top surfaces of the support changing belts.
3. The waterproof construction method for the intersection of the foundation slab and the side wall according to claim 1, wherein after the waterproof coiled material is laid, a cushion block is embedded in the upturned position of the waterproof coiled material, and the corner of the cushion block is matched with an internal corner formed between the support changing belt and the cushion layer, so that the waterproof coiled material is tightly attached to the root of the support changing belt and the base slab, and the hollow phenomenon is avoided at the internal corner.
4. The method for waterproofing a junction between a foundation slab and a side wall according to claim 1, wherein the step of laying an overhanging formwork on top of the stay strip along a slab surface direction of the top of the slab comprises:
the cantilever template is provided with a fixed side and a cantilever side which are opposite to each other, and the fixed side is placed on the support changing belt, so that the cantilever side extends to the outer side face of the guide wall;
and placing a weight member on the upper part of the fixed side to compact the fixed side.
5. The method according to claim 1, wherein, when the step of integrally coating the outer side of the side wall, the guide wall, the bottom plate and the top surface of the support changing belt with a waterproof coating is performed, two polyurethane waterproof coatings are coated on the outer side of the side wall, the guide wall, the bottom plate and the top surface of the support changing belt to form the waterproof coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210524098.5A CN114922231B (en) | 2022-05-13 | 2022-05-13 | Waterproof construction method for intersection of foundation slab and side wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210524098.5A CN114922231B (en) | 2022-05-13 | 2022-05-13 | Waterproof construction method for intersection of foundation slab and side wall |
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| Publication Number | Publication Date |
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| CN114922231A CN114922231A (en) | 2022-08-19 |
| CN114922231B true CN114922231B (en) | 2023-06-13 |
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| CN202210524098.5A Active CN114922231B (en) | 2022-05-13 | 2022-05-13 | Waterproof construction method for intersection of foundation slab and side wall |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207775944U (en) * | 2017-11-30 | 2018-08-28 | 上海东方雨虹防水技术有限责任公司 | A kind of waterproof construction of projecting-eave type basement bottom board and side wall position at permanent protection wall |
| US10968596B2 (en) * | 2019-01-29 | 2021-04-06 | Amir Rudyan | Below grade, blind side, dual waterproofing membrane assembly incorporating a sheet membrane with adhesive to fully bond to concrete/shotcrete, and a method of making, and using same |
| CN110512656A (en) * | 2019-07-12 | 2019-11-29 | 中冶天工集团有限公司 | A kind of waterproofing node method at outer wall of underground structure formwork erection and construction joint |
| CN211547826U (en) * | 2019-08-31 | 2020-09-22 | 北京东方雨虹防水工程有限公司 | Waterproof lap joint structure for different waterproof materials at guide wall |
| CN110747899B (en) * | 2019-10-23 | 2022-04-19 | 上海东方雨虹防水技术有限责任公司 | Basement waterproof construction method |
| CN211523296U (en) * | 2019-12-23 | 2020-09-18 | 重庆金牛衣防水工程有限责任公司 | Basement bottom plate corner construction waterproof construction |
| CN114108698A (en) * | 2021-12-21 | 2022-03-01 | 中建科工集团有限公司 | Construction method of basement bottom plate and outer wall waterproof structure |
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