CN114922231A - 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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- CN114922231A CN114922231A CN202210524098.5A CN202210524098A CN114922231A CN 114922231 A CN114922231 A CN 114922231A CN 202210524098 A CN202210524098 A CN 202210524098A CN 114922231 A CN114922231 A CN 114922231A
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- waterproof
- 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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- Environmental & Geological Engineering (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a waterproof construction method for the 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 at one time, the concrete can form a good chemical reaction with the waterproof coiled material in the initial setting process, and the concrete and the waterproof coiled material are adhered more firmly. When the outer wall is constructed for waterproofing, the waterproof coating of the outer wall and the waterproof coiled material at the position of the guide wall are lapped, so that a good waterproof effect is achieved. The invention solves the problem that the later-stage junction of the waterproof coiled material at the junction of the bottom plate and the wall root of the side wall is easy to leak in the traditional construction method.
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, the waterproof materials of the foundation slab are mostly self-adhesive film waterproof rolls, and the waterproof rolls can be 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 characterized in that a section of waterproof coiled material is reserved on the side of the bottom plate, and the reserved waterproof coiled material is turned over and fixed 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 waterproof method of the prior 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 over after the bottom plate cannot be tightly combined with the bottom plate and the guide wall, and the leakage phenomenon often occurs at the intersection of the bottom plate and the side wall.
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 that is already known to a person skilled in the art.
Disclosure of Invention
In order to overcome the defects in the prior art, a waterproof construction method for the junction of the foundation slab and the side wall is provided at present, so that the problem that the waterproof coiled material at the junction of the foundation slab and the wall root of the side wall is easy to leak at the junction in the later period when the waterproof coiled material at the junction of the foundation slab and the wall root of the side wall is constructed by the traditional method is solved.
In order to achieve the purpose, the waterproof construction method for the intersection of the foundation slab and the side wall comprises the following steps:
laying waterproof coiled materials on the cushion layer, after the support changing belt laid to the bottom plate is laid, upward turning along the support changing belt and laying the waterproof coiled materials to the top of the support changing belt, and reserving a preset length;
arranging a steel bar structure of the bottom plate on the waterproof coiled material, and installing guide wall joint bars on the steel bar structure;
laying an overhanging template 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 template extends to the upper part of the steel bar structure;
laying the reserved waterproof coiled material at the bottom of the overhanging template and extending to the guide wall dowel bars, so that the reserved part of the waterproof coiled material is arranged along the direction of the top of the bottom plate;
installing guide wall hanging molds on two sides of the guide wall joint bar, and turning up and paving the reserved remaining part of the waterproof coiled material on the inner sides of the guide wall hanging molds;
and 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.
Further, the method also comprises the following steps:
dismantling the cantilever template and the guide wall hanging mould, and cutting off the waterproof coiled material which exceeds the top of the guide wall;
pouring a side wall on the upper part of the guide wall, and laying a grid cloth on a construction joint of the guide wall and the side wall;
and integrally brushing a waterproof coating on the outer side of the side wall, the guide wall, the bottom plate and the top surface of the support replacing belt.
Furthermore, after the waterproof coiled material is laid, a cushion block is embedded at the upturning position of the waterproof coiled material, the corners of the cushion block are matched with the internal corners formed between the support belts and the cushion layer, so that the waterproof coiled material is tightly attached to the roots of the support belts and the bottom plate, and the phenomenon of hollowing at the internal corners is avoided.
Further, to reserve waterproofing membrane lay in the bottom of the template of encorbelmenting and extend to lead behind the wall dowel, with the remainder waterproofing membrane be fixed in temporarily lead the wall dowel for the remainder waterproofing membrane follows lead the length direction setting of wall dowel.
Further, in trade the top of propping the area and laying along the template of encorbelmenting that the face direction at bottom plate top set up includes:
the overhanging template is provided with a fixed side and an overhanging side which are opposite, and the fixed side is placed on the support changing belt, so that the overhanging side extends to the outer side surface of the guide wall;
and placing a weight on the upper part of the fixed side to compact the fixed side.
Further, when the step of integrally brushing the waterproof coating on the outer side of the side wall, the guide wall, the bottom plate and the top surface of the support changing belt is implemented, two polyurethane waterproof coatings are brushed 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 for the junction of the foundation slab and the side wall has the advantages that before the concrete of the slab is poured, the waterproof coiled materials on 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 at one time, the concrete can form a good chemical reaction with the waterproof coiled material in the initial setting process, and the concrete and the waterproof coiled material are more firmly adhered. When the outer wall is constructed for waterproofing, the waterproof coating of the outer wall and the waterproof coiled material at the position of the guide wall are lapped, 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 tank and fixing the upturning waterproof coiled material, and avoids potential safety hazards when workers operate in a narrow space such as the fertilizer tank.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 to 5 are schematic diagrams illustrating steps of a waterproofing construction method at an intersection of a foundation slab and a side wall according to an embodiment of the present invention.
Detailed Description
The present application will be described in further detail 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 to be construed as limiting the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 to 5, the present invention provides a waterproof construction method for a junction between a foundation slab and a side wall, including the following steps:
s1: laying waterproof coiled materials 1 on the cushion layer 2, and after the support changing belt 3 laid on the bottom plate is upwards laid along the support changing belt 3 to the top of the support changing belt 3, reserving a preset length L.
Referring to fig. 1, the envelope 21, the bedding layer 2 and the support-changing belt 3 on the bedding layer are firstly arranged. And after the cushion layer of the bottom plate is poured and reaches a certain strength, the waterproof coiled material is paved. And calculating 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, wherein the length L of the waterproof roll needs to be reserved.
In some embodiments, after the waterproof roll 1 is laid and the rubber roll is used for forcibly rolling and discharging air, so that the root of the support belt of the bottom plate is laid, adhered and extruded compactly, the cushion block 10 is embedded at the upturned part of the waterproof roll 1, the corners of the cushion block 10 are matched with the internal corners formed between the support belt 3 and the cushion layer 2, so that the waterproof roll 1 is tightly adhered to the root of the support belt 3 and the bottom plate 9, and the phenomenon of hollowing at the internal corners is avoided.
In this embodiment, the cushion is the concrete cushion, and the cushion later stage is used for supporting in the steel bar structure of bottom plate.
S2: the reinforcing steel bar structure 4 of the bottom plate is arranged on the waterproof roll 1, and the guide wall inserted bars 5 are arranged on the reinforcing steel bar structure 4.
Referring to fig. 2, after the mat layer and the waterproof roll material on the sidewall of the support replacement band are laid, the steel bar structure 4 of the bottom plate is erected, and the guide wall insertion rib 5 is installed on the steel bar structure 4.
When the bottom bars of the steel bar structure of the bottom plate are bound, the concrete cushion blocks at the root parts of the support belts are further compacted, and the phenomenon that hollowing occurs at the internal corners is prevented. The finished product protection of waterproofing membrane is paid attention to among the reinforcement binding process, trades near the brace band and has had the steel reinforcement support stand to support, prevents that the upper reinforcing bar from encorbelmenting the overlength and leading to waterproofing membrane along with warping.
S3: and laying the overhanging template 6 arranged along the plate surface direction of the top of the bottom plate at the top of the support replacing belt 3, so that the overhanging template 6 extends to the upper part of the steel bar structure 4.
Continuing with fig. 2, in particular, 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 member 31 on the upper portion of the fixed side to compact the fixed side.
In the process of turning 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 bent to form edge angles. As shown in the figure, after the fixing is finished, the overhanging template is placed on the top of the support belt and the bottom plate, and is compacted by a heavy object, namely a counterweight, so that the impression quality of the poured and molded concrete is ensured.
S4: the reserved waterproof roll material 1 is laid at the bottom of the overhanging template 6 and extends to the guide wall dowel bar 5, so that the reserved part of the waterproof roll material 11 is arranged along the direction of the top of the bottom plate.
Continuing to refer to fig. 2, after the reserved waterproofing membrane 1 is laid at the bottom of the overhanging template 6 and extends to the guide wall dowel 5, the remaining portion of waterproofing membrane 12 is temporarily fixed to the guide wall dowel 5, so that the remaining portion of waterproofing membrane 12 is arranged along the length direction of the guide wall dowel 5.
S5: referring to fig. 3, the guide wall hanging molds 7 are installed at both sides of the guide wall dowels 5, and the remaining part of the waterproof roll 12 is turned up and laid on the inner sides of the guide wall hanging molds 7.
After the installation of guide wall suspended formwork is completed, the remaining part of waterproof coiled material 12 is tightly attached to the inner side of the guide wall template (when the waterproof coiled material in the former stage is reserved, the reserved length is considered, the waterproof coiled material is guaranteed to be 10cm higher than the top of the guide wall template), the raised 10cm is outwards turned over and fixed at the top of the side template, and laitance is prevented from appearing on the outer surface of the waterproof coiled material in the later stage. And fix waterproofing membrane through concrete cushion and side wall template extrusion, guarantee that waterproofing membrane and leading wall template are spread and are pasted smoothly.
When the guide wall is used for hanging the mold, the water stop screw rod needs to penetrate through the mold plate and the waterproof coiled material, the waterproof coiled material can be punched, 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 ensure that the waterproof coiled material 1 is tightly combined 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 poured slowly and vibrated fully, and particularly, the corner concrete is tightly filled and vibrated. When the guide wall concrete is poured, concrete is forbidden to be poured between the waterproof coiled material and the guide wall side die, so that the external surface of the waterproof coiled material has laitance to influence the external wall quality.
S7: referring to fig. 4, the cantilever form 6 and the guide wall hanging form 7 are removed, and the waterproofing membrane 1 that exceeds 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 mold is removed, and the waterproof coiled material higher than the top of the guide wall is cut off, so that the waterproof coiled material is ensured to be flat with the guide wall and tightly attached to the guide wall without gaps.
S8: referring to fig. 5, a side wall 81 is poured on the top of the guide wall, and a mesh is laid on the construction joint between the guide wall and the side wall.
S9: and (3) integrally brushing a waterproof coating 82 on the outer side of the side wall, the guide wall, the bottom plate and the top surface of the support replacing belt 3.
When the step of brushing 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 performed, two polyurethane waterproof coatings with the thickness of 1.5mm are brushed 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 junction of the foundation slab and the side wall, the waterproof coiled materials at the foundation slab and the side wall are turned up to the construction joint of the guide wall and fixed in place before the concrete of the bottom slab is poured. After the concrete is poured, the concrete and the waterproof coiled material are poured and formed at one time, the concrete can form a good chemical reaction with the waterproof coiled material in the initial setting process, and the concrete and the waterproof coiled material are more 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 position of 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 tank and fixing the upturning waterproof coiled material, and avoids potential safety hazards when workers operate in a narrow space such as the fertilizer tank.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention according to the present application is not limited to the specific combination of the above-mentioned features, but also covers other embodiments where any combination of the above-mentioned features or their equivalents is made without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (6)
1. A waterproof construction method for the junction of a foundation slab and a side wall is characterized by comprising the following steps:
laying waterproof coiled materials on the cushion layer, after the support changing belt laid to the bottom plate is laid, upward turning along the support changing belt and laying the waterproof coiled materials to the top of the support changing belt, and reserving a preset length;
arranging a steel bar structure of the bottom plate on the waterproof coiled material, and installing guide wall joint bars on the steel bar structure;
laying an overhanging template 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 template extends to the upper part of the steel bar structure;
laying the reserved waterproof coiled material at the bottom of the overhanging template and extending to the guide wall dowel bars, so that the reserved part of the waterproof coiled material is arranged along the direction of the top of the bottom plate;
installing guide wall hanging molds on two sides of the guide wall joint bar, and turning up and paving the reserved remaining part of the waterproof coiled material on the inner sides of the guide wall hanging molds;
and 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.
2. The waterproof construction method of the junction of the foundation slab and the side wall as claimed in claim 1, further comprising:
removing the overhanging template and the guide wall hanging template, and cutting off the waterproof coiled material which exceeds the top of the guide wall;
pouring a side wall on the upper part of the guide wall, and laying a grid cloth on a construction joint between the guide wall and the side wall;
and integrally brushing a waterproof coating on the outer side of the side wall, the guide wall, the bottom plate and the top surface of the support replacing belt.
3. The waterproof construction method for the intersection of the foundation slab and the side wall as claimed in claim 1, wherein after the waterproof roll is laid, a cushion block is embedded at the upturned part of the waterproof roll, and corners of the cushion block are matched with an internal corner formed between the support-changing belt and the cushion layer, so that the waterproof roll is tightly attached to the root of the support-changing belt and the bottom slab, and the internal corner is prevented from generating a hollowing phenomenon.
4. The waterproof construction method for the intersection of the foundation slab and the side wall as claimed in claim 1, wherein after the reserved waterproof rolls are laid at the bottom of the overhanging formwork and extend to the guide wall dowel, the remaining waterproof rolls are temporarily fixed to the guide wall dowel so that the remaining waterproof rolls are arranged along the length direction of the guide wall dowel.
5. The waterproof construction method for the intersection of the foundation slab and the side wall as claimed in claim 1, wherein the step of laying an overhanging form along the slab surface direction of the top of the slab on the top of the support-replacing strip comprises:
the overhanging template is provided with a fixed side and an overhanging side which are opposite, and the fixed side is placed on the support changing belt, so that the overhanging side extends to the outer side surface of the guide wall;
and placing a weight on the upper part of the fixed side to compact the fixed side.
6. The waterproof construction method at the intersection of the foundation slab and the side wall as claimed in claim 1, wherein when the step of brushing the waterproof coating on the outer side of the side wall, the guide wall, the bottom slab and the top surface of the support-changing strip is performed, two layers of polyurethane waterproof coatings are brushed on the outer side of the side wall, the guide wall, the bottom slab and the top surface of the support-changing strip 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 |
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| Application Number | Priority Date | Filing Date | Title |
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| 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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| CN114922231A true CN114922231A (en) | 2022-08-19 |
| CN114922231B 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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| 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 |
| 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 |
| CN110747899A (en) * | 2019-10-23 | 2020-02-04 | 上海东方雨虹防水技术有限责任公司 | Basement waterproof construction method |
| US20200240101A1 (en) * | 2019-01-29 | 2020-07-30 | 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 |
| 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 |
| 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 |
| 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 |
-
2022
- 2022-05-13 CN CN202210524098.5A patent/CN114922231B/en active Active
Patent Citations (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 |
| US20200240101A1 (en) * | 2019-01-29 | 2020-07-30 | 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 |
| CN110747899A (en) * | 2019-10-23 | 2020-02-04 | 上海东方雨虹防水技术有限责任公司 | Basement waterproof construction method |
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| 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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| CN114922231B (en) | 2023-06-13 |
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