Advanced plugging structure of basement exterior wall post-cast strip
By setting up prefabricated concrete retaining plates and waterproof coils on the outside of the basement exterior wall, the cement mortar connection body is used to solve the problem of slow construction progress and timely waterproof layer caused by the long retention time of the post-watering tape. , achieving the effect of speeding up construction progress and reducing costs.
Patent Information
- Application Number
- CN202420530265.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-03-19
AI Technical Summary
During the construction of the basement exterior wall rear pouring belt, the long retention time of the rear pouring belt affects the timely construction of the waterproof layer and backfill soil, resulting in slow construction progress, high cost and high labor intensity, especially in rainy days.
Design an early sealing structure, including prefabricated concrete retaining plates and waterproof coils, leveling and sealing the connection through cement mortar, and constructing a standardized and integrated prefabricated concrete retaining structure, which is set outside the outer wall back pouring strip. As a prefabricated tire mold, waterproofing and backfill construction are realized, processes are simplified, and efficiency is improved.
It effectively shortens the construction cycle, reduces costs and labor intensity, improves construction efficiency, solves the timeliness of waterproofing layers and backfill soil construction, especially reduces the risk of rainwater infusion on rainy days.
Smart Images
Figure CN222332779U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a post-cast strip of a basement outer wall, in particular to an early blocking structure of the post-cast strip of a basement outer wall. Background Art
[0002] At present, in the construction of post-cast strips on the exterior walls of basements in housing construction and public construction projects, in the construction of post-cast strips on the design of basement retaining wall structures, the post-cast strips are left for a long time, which affects the timely construction of the waterproof layer and backfill soil on the outside of the basement. If it rains, the basement will be filled with rainwater, which requires a large amount of human resources and facilities and materials for drainage, and additional preventive and protective measures must be taken. This will seriously affect the deployment of the construction site and the control of the construction progress for projects with insufficient construction sites or requiring construction precipitation. Summary of the invention
[0003] In order to overcome the above-mentioned deficiencies in the prior art, the utility model provides an early blocking structure for the post-cast strip of the basement outer wall, which can overcome the technical difficulties of the long retention time of the post-cast strip of the basement outer wall, which affects the difficulty of timely construction of the waterproof layer and backfill soil, thereby speeding up the construction progress and shortening the construction period.
[0004] The technical solution adopted by the utility model to solve its technical problems is:
[0005] An early blocking structure for a post-cast strip of a basement exterior wall is integrally arranged on the outside of the post-cast strip of the exterior wall; the early blocking structure comprises:
[0006] Precast concrete retaining plate, wherein in the height direction, the precast concrete retaining plate is configured to be consistent with the height of the post-cast strip of the exterior wall; in the width direction, the precast concrete retaining plate is configured to cover the post-cast strip of the exterior wall and overlap with the exterior wall of the basement;
[0007] A waterproofing coiled material, wherein in the height direction, the waterproofing coiled material is configured to be consistent with the precast concrete retaining plate; in the width direction, the waterproofing coiled material is configured to overlap with the outer wall of the basement and cover the outer surface of the precast concrete retaining plate;
[0008] In the height direction, a cement mortar leveling connector is provided between the precast concrete retaining plate and the basement raft foundation; in the width direction, a cement mortar sealing connector is provided between the waterproof membrane, the precast concrete retaining plate and the basement outer wall.
[0009] As described above, in the early sealing structure of the post-cast strip of the basement exterior wall, optionally, the precast concrete retaining plate includes a plurality of longitudinally stacked precast concrete cover plates, a cement mortar base connector is arranged between adjacent precast concrete cover plates, and a cement mortar primer connector is arranged at the overlapping portion between each precast concrete cover plate and the basement exterior wall.
[0010] As described above, in the early sealing structure of the post-cast strip of the basement exterior wall, optionally, the precast concrete cover plate includes a rectangular cover plate body, and the rectangular cover plate body is provided with a hanging ring and connecting steel bars on the side facing the exterior wall post-cast strip, and the connecting steel bars are used to connect with the horizontal steel bars in the exterior wall post-cast strip.
[0011] In the above-mentioned early blocking structure of the post-cast strip of the basement exterior wall, optionally, U-shaped round steel is embedded in the rectangular cover plate body to form the lifting ring.
[0012] In the early sealing structure of the post-cast strip of the basement exterior wall as described above, optionally, the connecting steel bars are embedded in the rectangular cover plate body through the bent ends, and the connecting steel bars are welded and fixed to the horizontal steel bars through the straight ends, and the length of the straight ends is consistent with the thickness of the post-cast strip of the exterior wall.
[0013] In the early blocking structure of the post-cast strip of the basement exterior wall as described above, optionally, the number of the lifting rings is two, the number of the connecting steel bars is three, and the three connecting steel bars are evenly distributed in the middle of the two lifting rings.
[0014] In the above-mentioned early blocking structure of the post-cast strip of the basement exterior wall, optionally, the rectangular cover plate body is cast by C20 concrete.
[0015] As described above, in the early blocking structure of the post-cast strip of the basement exterior wall, optionally, the rectangular cover plate body is also provided with a reserved hole, and the reserved hole corresponds to the pipeline setting in the post-cast strip of the exterior wall.
[0016] In the above-mentioned early sealing structure of the post-cast strip of the basement exterior wall, optionally, the waterproof membrane and the outer waterproof layer of the basement raft foundation are arranged as an integral structure; the waterproof membrane forms an integral covering for all the precast concrete cover plates.
[0017] In the above-mentioned early sealing structure of the post-cast strip of the basement exterior wall, optionally, the waterproof membrane adopts a double-layer structure.
[0018] With the help of the above technical scheme, the utility model is a kind of early plugging structure of the post-cast strip of the basement exterior wall. By setting precast concrete retaining plates and waterproofing coils on the outside of the entire post-cast strip of the exterior wall, and using cement mortar leveling connectors and cement mortar plugging connectors to construct a standardized, integrated precast concrete retaining structure, it can overcome the technical difficulties that the existing post-cast strip of the exterior wall of the basement is left for a long time, the waterproof layer and backfill soil on the outside of the basement cannot be constructed in time, if it rains, the basement will be filled with rainwater, the construction cost is high, the labor intensity is high, and the construction period is long. At the same time, in terms of material selection and process, the early plugging structure made of precast concrete, waterproofing coils and cement mortar is simple in method and high in strength, and can also be used as an external template for pouring the post-cast strip of the retaining wall, thereby improving construction efficiency, simplifying construction procedures, reducing labor intensity, effectively shortening the construction period and reducing construction costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0020] Figure 1 It is an installation elevation view of the early blocking structure of one embodiment of the utility model.
[0021] Figure 2 It is an installation cross-sectional view of the early blocking structure of one embodiment of the utility model.
[0022] Figure 3 It is a cross-sectional view of a prefabricated concrete retaining plate in an early blocking structure of an embodiment of the utility model.
[0023] Figure 4 It is a top view of a prefabricated concrete retaining plate in an early blocking structure of an embodiment of the utility model.
[0024] Meaning of reference numerals in the figure:
[0025] 1- Basement exterior wall;
[0026] 2-External wall post-casting strip;
[0027] 3-advance blocking structure; 31-precast concrete retaining plate; 311-precast concrete cover plate; 3111-rectangular cover plate body; 3112-lifting ring; 3113-connecting steel bars; 3114-two-way single-layer reinforcement; 3115-cement mortar primer connector; 312-cement mortar base connector; 32-waterproof membrane; 33-cement mortar blocking connector; 34-cement mortar leveling connector;
[0028] 4-Basement raft foundation. DETAILED DESCRIPTION
[0029] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.
[0030] Figures 1 to 4 The structure diagram of a preferred embodiment of the utility model is shown. Figure 1 A pre-sealing structure 3 of a post-cast strip of a basement outer wall 1 is integrally arranged on the outer side of a post-cast strip 2 of the outer wall; the pre-sealing structure 3 comprises:
[0031] Precast concrete retaining plate 31, in the height direction, the precast concrete retaining plate 31 is configured to be consistent with the height of the exterior wall post-cast strip 2; in the width direction, the precast concrete retaining plate 31 is configured to cover the exterior wall post-cast strip 2 and overlap with the basement exterior wall 1;
[0032] The waterproofing coiled material 32 is configured to be consistent with the precast concrete retaining plate 31 in the height direction; and is configured to overlap with the basement outer wall 1 in the width direction, while covering the outer surface of the precast concrete retaining plate 31;
[0033] In the height direction, a cement mortar leveling connector 34 is provided between the precast concrete retaining plate 31 and the basement raft foundation 4; in the width direction, a cement mortar sealing connector 33 is provided between the waterproof membrane 32, the precast concrete retaining plate 31 and the basement outer wall 1.
[0034] In this embodiment, the cement mortar plugging connector 33 can be formed by chamfering with 1:2 cement mortar. More specifically, after the precast concrete retaining plate 31 is installed, cement mortar is used for leveling, and the triangular cavity formed between the precast concrete retaining plate 31, the basement outer wall 1, and the waterproof membrane 32 is filled in layers to meet the waterproof construction requirements.
[0035] In this embodiment, the cement mortar leveling connector 34 can be formed by using 1:2 cement mortar. More specifically, before installing the precast concrete retaining plate 31, the outer waterproof layer of the precast concrete retaining plate 31 is turned outside and protected, the base is cleaned, and then cement mortar is used for leveling, and then the precast concrete retaining plate 31 is installed.
[0036] In the vertical direction, the precast concrete retaining plate 31 and the waterproofing membrane 32 are both located between the foundation top elevation and the basement top elevation, and are at the same height as the basement exterior wall 1; in the horizontal direction, the precast concrete retaining plate 31 is wider than the exterior wall post-casting strip 2 and overlaps the exterior wall 1 of the basement, and the waterproofing membrane 32 is wider than the precast concrete retaining plate 31 and overlaps the exterior wall 1 of the basement, and the gap between the waterproofing membrane 32 and the precast concrete retaining plate 31 is filled by the mud mortar plugging connector. In this way, an early plugging structure 3 that can block the pouring space of the exterior wall post-casting strip 2 is built on the outside of the exterior wall post-casting strip 2.
[0037] The early blocking structure 3 is used as a prefabricated formwork to replace the traditional wooden formwork, and the indoor and outdoor parts can be separated from the outside of the basement outer wall 1. Therefore, firstly, the waterproofing and backfilling of the outer side of the retaining wall can be completed before the concrete of the back-cast strip of the retaining wall is poured, so as to speed up the construction progress, shorten the construction period and make use of the ground area around the foundation pit in advance; secondly, the pouring of the back-cast strip of the retaining wall can be equipped with an external formwork, so that after the pouring time requirement is met, only the internal formwork needs to be supported to pour the back-cast strip concrete, which improves the construction efficiency, simplifies the construction process, reduces the labor intensity, and effectively reduces the construction cost.
[0038] Optionally, refer to Figure 1 The precast concrete retaining plate 31 described in the embodiment of the utility model includes a plurality of longitudinally stacked precast concrete cover plates 311, a cement mortar base connector 312 is arranged between adjacent precast concrete cover plates 311, and a cement mortar primer connector 3115 is arranged at the overlapping portion between each of the precast concrete cover plates 311 and the basement outer wall 1.
[0039] The precast concrete retaining plate 31 is configured as a plurality of precast concrete cover plates 311 of a split structure, which is not only convenient for installation and disassembly during the entire installation and disassembly process, but also the quality of a single precast concrete cover plate 311, such as the load level, is easier to ensure during manufacturing. Before construction, the specifications (length×width×height) and the size of the reinforcement of the precast concrete cover plate 311 are determined according to the width and height of the exterior wall post-casting strip 2, and the number of precast concrete cover plates 311 to be used is calculated according to the height of the exterior wall post-casting strip 2 and the modulus of the precast concrete cover plate 311.
[0040] More specifically, the cement mortar mortar connector 312 can be formed by mortaring with a 1:2 cement mortar. After the cement mortar is placed on the first precast concrete cover plate 311 located at the bottom, the second precast concrete cover plate 311 is installed. Then, after the cement mortar is placed on the second precast concrete cover plate 311, the third precast concrete cover plate 311 is installed, and the installation is carried out from bottom to top in sequence.
[0041] The cement mortar primer connector 3115 can be formed by using 1:2 cement mortar as the primer. When each precast concrete cover plate 311 is constructed with cement mortar as the base, cement mortar is also applied to the overlapping part of the precast concrete cover plate 311 and the basement outer wall 1, and then the precast concrete cover plate 311 is positioned. It should be noted that before installing the precast concrete cover plate 311, the concrete surface on both sides of the outer side of the basement outer wall 1 must be roughened to expose the stones and cleaned.
[0042] Optionally, refer to Figures 2 to 4 The precast concrete cover plate 311 described in the embodiment of the utility model includes a rectangular cover plate body 3111, and a hanging ring 3112 and a connecting steel bar 3113 are provided on the side of the rectangular cover plate body 3111 facing the exterior wall post-cast strip 2, and the connecting steel bar 3113 is used to connect the horizontal steel bars in the exterior wall post-cast strip 2.
[0043] After the precast concrete cover plate 311 is positioned, the connecting steel bars 3113 can be used to temporarily fix the rectangular cover plate body 3111 to prevent the precast concrete cover plate 311 from tipping over.
[0044] The function of the lifting ring 3112 is to lift the precast concrete cover plate 311 to the desired position after casting. The lifting ring 3112 is set on the inner side of the rectangular cover plate body 3111. Compared with the lifting ring 3112 set on the top, the cutting work caused by stacking interference can be omitted.
[0045] Optionally, refer to Figure 2 The U-shaped round steel embedded in the rectangular cover body 3111 described in the embodiment of the utility model constitutes the lifting ring 3112. Specifically, the lifting ring 3112 is made of round steel φ12, bent into a U shape, with the arc end exposed and the straight end anchored in the rectangular cover body 3111.
[0046] Optionally, refer to Figure 3 The connecting steel bar 3113 described in the embodiment of the utility model is embedded in the rectangular cover plate body 3111 through the bent end, and the connecting steel bar 3113 is welded and fixed to the horizontal steel bar through the straight end, and the length of the straight end is consistent with the thickness of the exterior wall post-cast strip 2.
[0047] In the specific operation, each time a precast concrete cover plate 311 is installed, the straight end of the connecting steel bar 3113 is temporarily fixed to the horizontal steel bar in the post-cast strip of the retaining wall by binding, and then fixed by spot welding.
[0048] Optionally, refer to Figure 4In the embodiment of the utility model, the number of the lifting rings 3112 is two, the number of the connecting steel bars 3113 is three, and the three connecting steel bars 3113 are evenly distributed between the two lifting rings 3112. In specific implementation, the three connecting steel bars 3113 can be arranged in a straight line or in multiple rows.
[0049] Optionally, the rectangular cover plate body 3111 described in the embodiment of the utility model is cast with C20 concrete. In specific production, the rectangular cover plate body 3111 can be a cuboid cast with C20 concrete according to specified size and shape, and bidirectional single-layer reinforcement 3114 is pre-embedded in the concrete to meet its own support strength requirements.
[0050] Optionally, the rectangular cover plate body 3111 described in the embodiment of the utility model is also provided with a reserved hole (not shown in the figure), and the reserved hole corresponds to the pipeline setting in the exterior wall post-cast strip 2.
[0051] After the specifications of the precast concrete cover 311 are selected and before reinforcement is performed, for locations where there are pipes in the exterior wall post-cast strip 2, openings can be reserved in the precast concrete cover 311 according to the pipe diameter to meet the requirements for passing the pipes.
[0052] Optionally, the waterproof membrane 32 described in the embodiment of the utility model is configured as an integral structure with the outer waterproof layer of the basement raft foundation 4 ; the waterproof membrane 32 integrally covers all the precast concrete cover plates 311 .
[0053] Optionally, refer to Figure 2 The waterproof coiled material 32 described in the embodiment of the utility model adopts a double-layer structure. The double-layer waterproof coiled material 32 structure is set so that the early blocking structure 3 of this embodiment meets the requirements of waterproof construction. Preferably, the early blocking structure 3 is preferably first made into a waterproof additional layer during construction, which can further optimize the waterproof performance.
[0054] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification and equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.
Claims
1. An early blocking structure for a post-cast strip of a basement exterior wall, which is integrally arranged on the outside of the post-cast strip of the exterior wall; characterized in that: The early blocking structure comprises: Precast concrete retaining plate, wherein in the height direction, the precast concrete retaining plate is configured to be consistent with the height of the post-cast strip of the exterior wall; in the width direction, the precast concrete retaining plate is configured to cover the post-cast strip of the exterior wall and overlap with the exterior wall of the basement; A waterproofing coiled material, wherein in the height direction, the waterproofing coiled material is configured to be consistent with the precast concrete retaining plate; in the width direction, the waterproofing coiled material is configured to overlap with the outer wall of the basement and cover the outer surface of the precast concrete retaining plate; In the height direction, a cement mortar leveling connector is provided between the precast concrete retaining plate and the basement raft foundation; in the width direction, a cement mortar sealing connector is provided between the waterproof membrane, the precast concrete retaining plate and the basement outer wall.
2. The early blocking structure of the post-cast strip of the basement exterior wall according to claim 1 is characterized in that: The precast concrete retaining plate comprises a plurality of longitudinally stacked precast concrete cover plates, a cement mortar base connector is arranged between adjacent precast concrete cover plates, and a cement mortar primer connector is arranged at the overlapping portion between each precast concrete cover plate and the outer wall of the basement.
3. The early blocking structure of the post-cast strip of the basement exterior wall according to claim 2 is characterized in that: The precast concrete cover plate comprises a rectangular cover plate body, and a hanging ring and connecting steel bars are provided on the side of the rectangular cover plate body facing the exterior wall post-cast strip, and the connecting steel bars are used for connecting with the horizontal steel bars in the exterior wall post-cast strip.
4. The early blocking structure of the post-cast strip of the basement exterior wall according to claim 3 is characterized in that: The U-shaped round steel is embedded in the rectangular cover plate body to form the lifting ring.
5. The early blocking structure of the post-cast strip of the basement exterior wall according to claim 4 is characterized in that: The connecting steel bar is embedded in the rectangular cover plate body through the bent end, and the connecting steel bar is welded and fixed to the horizontal steel bar through the straight end, and the length of the straight end is consistent with the thickness of the post-cast strip of the exterior wall.
6. The early blocking structure of the post-cast strip of the basement exterior wall according to claim 5 is characterized in that: The number of the lifting rings is two, the number of the connecting steel bars is three, and the three connecting steel bars are evenly distributed in the middle of the two lifting rings.
7. The early blocking structure of the post-cast strip of the basement exterior wall according to claim 6 is characterized in that: The rectangular cover plate body is cast by using C20 concrete.
8. The early blocking structure of the post-cast strip of the basement exterior wall according to claim 7 is characterized in that: The rectangular cover plate body is also provided with a reserved hole, and the reserved hole corresponds to the pipeline setting in the post-cast strip of the exterior wall.
9. The early blocking structure of the post-cast strip of the basement exterior wall according to any one of claims 2 to 8, characterized in that: The waterproof coiled material and the outer waterproof layer of the basement raft foundation are arranged as an integral structure; the waterproof coiled material integrally covers all the precast concrete cover plates.
10. The early blocking structure of the post-cast strip of the basement exterior wall according to claim 9, characterized in that: The waterproof coiled material adopts a double-layer structure.