Structure for closing vertical post-cast strip of basement exterior wall in advance and construction method
By installing precast concrete waterproof panels and rolled waterproof layers on the basement exterior walls, and using micro-expansion waterproof mortar and sealant at the joints, the complex construction of the post-cast strip sealing of the basement exterior walls was solved, achieving early sealing and excellent waterproofing effect.
Patent Information
- Application Number
- CN202511147973.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-16
- Publication Date
- 2025-11-21
AI Technical Summary
In existing technologies, the construction of post-cast strip sealing of basement exterior walls is complex, affecting construction progress and waterproofing effect, and is prone to leakage.
The precast concrete waterproof panel structure includes a post-cast strip between the basement exterior walls, a precast concrete waterproof panel and a roll waterproof layer on the outside, and the joints of the panels are sealed with micro-expansion waterproof mortar and sealant.
It enables the early sealing of the basement exterior walls, ensuring the normal progress of construction procedures, providing excellent waterproofing, avoiding the risk of water leakage, and being environmentally friendly while reducing environmental costs.
Smart Images
Figure CN120990252A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of building construction, and more particularly relates to a structure and construction method for early closure of a vertical post-pouring belt of an underground wall. BACKGROUND
[0002] In building construction, waterproofing construction and surrounding backfilling of an underground wall generally need to wait until the post-pouring belt is poured and closed before proceeding. However, according to design requirements, pouring of the post-pouring belt generally cannot be performed until 60 days after pouring of the underground wall body or after the structure is capped. This means that waterproofing construction and earthwork backfilling of the outer side of the underground wall body cannot be performed until the post-pouring belt closure construction is completed, thereby affecting the progress of building construction.
[0003] To solve this problem, the prior art generally uses a method of building a retaining wall with bricks to close the gap in the underground wall body at the post-pouring belt, and then performing earthwork backfilling of the outer side of the underground wall body. This construction method is not only complex, but also affects subsequent construction of the underground waterproofing project, and the pouring construction of the post-pouring belt is very inconvenient, the waterproofing effect is poor, and water leakage is likely to occur. Therefore, the existing closure construction method and structure of the post-pouring belt of the underground wall are not ideal. SUMMARY
[0004] To solve the above technical problems, the present application adopts the following technical solutions:
[0005] A structure for early closure of a vertical post-pouring belt of an underground wall, comprising a post-pouring belt, the post-pouring belt being arranged between the underground wall; a prefabricated concrete waterproofing panel structure is arranged on the outer side of the post-pouring belt; a coiled material waterproofing layer is arranged on the outer side of the underground wall and the prefabricated concrete waterproofing panel structure; and a backfilling soil layer is arranged on the outer side of the prefabricated concrete waterproofing panel structure.
[0006] Further, steel bars are embedded in the prefabricated panel when the concrete waterproofing panel structure is manufactured, and part of the steel bars are made into hooks that are bound to temporary fixing points for temporary fixing.
[0007] Further, steel bars are embedded in the interior of the panel body of the prefabricated panel, and the spacing between the steel bars is 150-250 mm; the hooks are embedded in the panel body; the laying direction of the hooks is the long direction of the bars, and the length of the steel bars of the hooks that protrude from the panel body needs to meet the hoisting requirements.
[0008] Further, the width of the prefabricated concrete panel body is greater than the width of the post-pouring belt.
[0009] Further, the width of the prefabricated concrete panel body should be 200 mm wider than each side of the post-pouring belt.
[0010] Further, the waterproof layer of the coiled material covers the basement outer wall and the outer side of the prefabricated concrete waterproof panel structure.
[0011] Further, the prefabricated panel vertical joint and bottom of the prefabricated concrete waterproof panel structure are connected by a micro-expansion waterproof mortar protective layer.
[0012] Further, the micro-expansion waterproof mortar protective layer is micro-expansion waterproof mortar.
[0013] Further, notched joints are arranged between the prefabricated concrete waterproof panels of the prefabricated concrete waterproof panel structure and are connected with the waterproof layer of the coiled material; the two ends of the notched joints are connected by sealing glue; the inner side of the sealing glue is provided with backing material to prevent the sealing glue from falling off.
[0014] A construction method for the structure of the basement outer wall vertical post-cast strip early closure, which is the construction method for the structure of the basement outer wall vertical post-cast strip early closure according to any one of the above, and the construction method comprises the following steps:
[0015] S10, constructing a basement outer wall and reserving a post-cast strip;
[0016] S20, hoisting a prefabricated concrete waterproof panel to an installation position;
[0017] S30, temporarily supporting the hoisted prefabricated concrete waterproof panel;
[0018] S40, repeating steps S20 to S30 until the installation of the prefabricated concrete waterproof panel is completed;
[0019] S50, adding backing material to the vertical joint of adjacent prefabricated concrete waterproof panels;
[0020] S60, applying sealing glue to the vertical joint of adjacent prefabricated concrete waterproof panels;
[0021] S70, connecting the prefabricated panel vertical joint and bottom by micro-expansion waterproof mortar;
[0022] S80, laying the waterproof layer of the coiled material on the outer side of the basement outer wall and the prefabricated concrete waterproof panel structure;
[0023] S90, segmentally and layer by layer backfilling the soil layer on the outer side of the basement structure outer wall;
[0024] S100, after the deformation and settlement of the structure on both sides of the post-cast strip are stable, constructing the post-cast strip and completing the closure of the post-cast strip.
[0025] Compared with the prior art, the present application has the following beneficial effects:
[0026] The basement outer wall vertical post-cast strip early closing structure and construction method provided by the application is provided with a coiled material waterproof layer outside the basement outer wall and the prefabricated concrete waterproof hanging plate structure, realizes early closing of the post-cast strip, guarantees normal construction process of the underground structure, normal construction of the backfill process, guarantees waterproof of the outer side of the underground structure, and avoids the risk of water leakage.
[0027] The processing of the outer wall hanging plate is all completed in the factory, and after entering the construction site, the entire construction process is basically noiseless, without wet work, and the entire process is non-toxic, harmless, non-polluting, green and environmentally friendly, thereby reducing environmental protection costs.
[0028] In addition to the concrete structure waterproof measures, the vertical joint and the bottom of the outer wall hanging plate are sealed by using micro-expansion waterproof mortar, and the sealing glue is connected at both ends of the hanging plate slot joint, the micro-expansion waterproof mortar can slightly and uniformly expand during the solidification process, and can fill the small gaps and holes in the concrete, thereby enhancing the integrity and waterproof performance of the structure.
[0029] The expansion property makes the volume slightly expand during the hardening process, which can compensate for the shrinkage of the concrete, improve the compactness and waterproof effect of the structure, and has excellent waterproof performance, and can enhance the integrity and compactness of the structure through the expansion property, and is suitable for various complex construction environments and climate conditions; the ordinary waterproof mortar mainly achieves the waterproof effect through the water resistance and corrosion resistance, and the application range is relatively narrow; the inside of the sealing glue uses backing material to prevent the sealing glue from falling off, and truly achieves no leakage. BRIEF DESCRIPTION OF DRAWINGS
[0030] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only belong to the embodiments of the application, and those skilled in the art can obtain other drawings according to the provided drawings without creative labor.
[0031] Figure 1 A whole use schematic view of the basement outer wall vertical post-cast strip early closing structure provided by the application;
[0032] Figure 2 A whole sectional view schematic view of the basement outer wall vertical post-cast strip early closing structure provided by the application;
[0033] Figure 3 A reinforcement laying schematic view of the basement outer wall vertical post-cast strip early closing structure provided by the application;
[0034] Figure 4A vertical joint structure section view of a structure for early closing of a vertical post-cast strip of an outer wall of a basement is provided in the present application;
[0035] Wherein, 1, hook; 2, plate body; 3, outer wall of basement; 4, micro-expansion waterproof mortar protective layer; 5, sealant; 6, backing material; 7, rabbet joint; 8, post-cast strip; 9, waterproof roll material; 10, backfill layer. DETAILED DESCRIPTION
[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.
[0037] Embodiment 1
[0038] Reference Figures 1-4 A structure for early closing of a vertical post-cast strip of an outer wall of a basement, comprising a post-cast strip 8, which is arranged between outer walls 3 of the basement; a prefabricated concrete waterproof hanging plate structure is arranged outside the post-cast strip 8; a roll waterproof layer is arranged outside the outer walls 3 of the basement and the prefabricated concrete waterproof hanging plate structure; and a backfill layer 10 is arranged outside the prefabricated concrete waterproof hanging plate structure.
[0039] In the present embodiment, the prefabricated concrete outer wall hanging plate is suitable for outer wall engineering of civil buildings and general industrial buildings with a height of less than 100 meters, and general basement outer wall engineering.
[0040] Before hoisting the prefabricated concrete waterproof hanging plate, the concrete waterproof hanging plate needs to be cast in advance according to the size of the outer wall of the basement, and a rabbet joint 7 needs to be reserved on the long-direction edge of the waterproof hanging plate during casting. The prefabricated concrete waterproof hanging plate is provided with hooks 1 at the ends, which facilitates hoisting and transportation by a tower crane.
[0041] In the present embodiment, steel bars are implanted in the prefabricated hanging plate when the concrete waterproof hanging plate structure is manufactured, and part of the steel bars are made into hooks 1, which are bound to temporary fixing points for temporary fixing.
[0042] Specifically, steel bars are implanted in the plate body 2 of the prefabricated hanging plate, and the spacing between the steel bars is 150-250 mm; the hooks 1 are embedded in the plate body 2; wherein, the laying direction of the hooks 1 is the long-direction bar direction, and the length of the steel bars of the hooks 1 exposed from the plate body 2 needs to meet the hoisting and transportation requirements.
[0043] More specifically, the plate body 2 is made of a concrete hanging plate embedded with steel bars, the plate body 2 is internally embedded with HRB400 steel bars with a diameter of 6 mm, the hook 1 is HRB400 steel bar with a diameter of 12 mm, embedded in the plate body 2, and has the advantages of waterproof and heat insulation, energy saving, good durability and certain anti-seismic performance.
[0044] The prefabricated concrete waterproof hanging plate plate body is internally embedded with HRB400 steel bars with a diameter of 6 mm, the steel bars are spaced 200 mm apart, and HRB400 steel bars with a diameter of 12 mm are provided as hooks, which facilitates hoisting by tower crane and can also be bound to temporary fixing points as temporary fixing.
[0045] At the same time, the prefabricated concrete waterproof hanging plate structure is completely processed in the factory, and after entering the construction site, the entire construction process is basically noise-free, without wet work, and the entire process is non-toxic, harmless, and does not pollute the environment, green and environmentally friendly, thereby reducing environmental protection costs.
[0046] In this embodiment, the prefabricated concrete plate body is wider than the width of the post-cast strip 8.
[0047] Specifically, the prefabricated concrete plate body should be 200 mm wider than each side of the post-cast strip 8.
[0048] In this embodiment, the coiled waterproof layer covers the basement outer wall 3 and the outer side of the prefabricated concrete waterproof hanging plate structure.
[0049] In this embodiment, the prefabricated hanging plate of the prefabricated concrete waterproof hanging plate structure is connected at the vertical joint and the bottom by a micro-expanding waterproof mortar protective layer 4.
[0050] Specifically, the micro-expanding waterproof mortar protective layer 4 is preferably micro-expanding waterproof mortar. The waterproof mortar protective layer uses a micro-expanding waterproof mortar protective layer 4, which has the advantages of strong waterproofness, strong shrinkage resistance, and strong compactness.
[0051] Compared with ordinary waterproof mortar, the micro-expanding waterproof mortar can slightly and uniformly expand during the setting process, filling the small gaps and holes in the concrete, thereby enhancing the integrity and waterproof performance of the structure. Its expansion property causes a slight expansion in volume during the hardening process, which can compensate for the shrinkage of the concrete and improve the compactness and waterproof effect of the structure. It not only has excellent waterproof performance, but also enhances the integrity and compactness of the structure through its expansion property, making it suitable for various complex and variable construction environments and climate conditions. Ordinary waterproof mortar mainly achieves waterproof effect through its water resistance and corrosion resistance, and has a relatively narrow application range.
[0052] In the embodiment, the prefabricated concrete waterproof hanging plate structure is provided with a rabbet joint 7 between the prefabricated hanging plates, and is connected with the waterproof layer of the coiled material; the two ends of the rabbet joint 7 are connected by using the sealant 5; the inner side of the sealant 5 is provided with the backing material 6 to prevent the sealant 5 from falling off.
[0053] The inner side of the sealant is provided with the backing material to prevent the sealant from falling off, and the water leakage is truly prevented.
[0054] Embodiment 2
[0055] A construction method of a structure for early closing of a vertical post-cast strip of an outer wall of a basement, which is provided for the construction method of the structure for early closing of the vertical post-cast strip of the outer wall of the basement in Embodiment 1, the construction method comprises the following steps:
[0056] S10, constructing the outer wall 3 of the basement and reserving the post-cast strip 8;
[0057] S20, hoisting the prefabricated concrete waterproof hanging plate to the installation position;
[0058] S30, temporarily supporting the prefabricated concrete waterproof hanging plate after hoisting;
[0059] S40, repeating steps S20 to S30 until the installation of the prefabricated concrete waterproof hanging plate is completed;
[0060] S50, adding the backing material at the vertical joint of the adjacent prefabricated concrete waterproof hanging plates;
[0061] S60, applying the sealant 5 at the vertical joint of the adjacent prefabricated concrete waterproof hanging plates;
[0062] S70, connecting the hanging plates at the vertical joint and the bottom by using the micro-expansion waterproof mortar;
[0063] S80, performing the waterproofing of the outer side of the outer wall 3 of the basement and the prefabricated concrete waterproof hanging plate structure by using the waterproof coiled material 9;
[0064] S90, performing the segmented and layered backfilling of the soil layer 10 on the outer side of the outer wall of the underground structure;
[0065] S100, after the deformation and settlement of the structures on both sides of the post-cast strip 8 are stable, performing the construction of the post-cast strip 8 and completing the closing operation of the post-cast strip 8.
[0066] The prefabricated concrete waterproof hanging plate of the outer wall of the basement provided in the embodiment is connected by using the above-mentioned content, the early closing of the post-cast strip can be realized, the normal construction process of the underground structure is ensured, the waterproof effect is effectively ensured, the overall waterproof property is improved, and the water leakage of the house is not caused.
[0067] The technical solutions of the present application are fully described above, and it should be noted that the specific embodiments of the present application are not limited by the above description, and all technical solutions formed by equivalent transformation or equivalent transformation in structure, method or function, etc. according to the spirit of the present application, fall within the scope of protection of the present application.
Claims
1. A construction for early closure of vertical post-installed strip in basement exterior wall, characterized in that, The construction comprises a post-pouring belt arranged between the basement outer walls; a prefabricated concrete waterproof hanging plate structure is arranged outside the post-pouring belt; a coiled waterproof layer is arranged outside the basement outer walls and the prefabricated concrete waterproof hanging plate structure; and a backfill soil layer is arranged outside the prefabricated concrete waterproof hanging plate structure.
2. The construction for early closure of vertical post-installed strip for basement exterior wall according to claim 1, characterized in that, Steel bars are implanted in the prefabricated hanging plate of the concrete waterproof hanging plate structure, and part of the steel bars are made into hooks which are bound to temporary fixing points for temporary fixing.
3. The construction for early closure of vertical post-installed strip in basement exterior wall according to claim 2, characterized in that, The steel bars are implanted in the interior of the plate body of the prefabricated hanging plate, and the spacing between the steel bars is 150-250 mm; the hooks are embedded in the plate body; the laying direction of the hooks is the long direction of the steel bars, and the length of the steel bars exposed from the plate body needs to meet the hoisting requirements.
4. The construction for early closure of vertical post-installed strip in basement exterior wall according to claim 3, characterized in that, The width of the prefabricated concrete plate body is greater than the width of the post-pouring belt.
5. The construction for early closure of vertical post-installed strip in basement exterior wall according to claim 4, characterized in that, The width of the prefabricated concrete plate body is greater than 200 mm on each side of the post-pouring belt.
6. The construction for early closure of vertical post-installed band for basement exterior wall according to claim 1, characterized in that, The coiled waterproof layer covers the outside of the basement outer walls and the prefabricated concrete waterproof hanging plate structure.
7. The construction for early closure of vertical post-installed band for basement exterior wall according to claim 1, characterized in that, The vertical joints and the bottom of the prefabricated hanging plate of the prefabricated concrete waterproof hanging plate structure are connected by a micro-expansion waterproof mortar protection layer.
8. The construction for early closure of vertical post-installed strip for basement exterior wall according to claim 7, characterized in that, The micro-expansion waterproof mortar protection layer is micro-expansion waterproof mortar.
9. The construction for early closure of vertical post-installed band for basement exterior wall according to claim 1, characterized in that, Groove joints are arranged between the prefabricated hanging plates of the prefabricated concrete waterproof hanging plate structure and are connected to the coiled waterproof layer; the two ends of the groove joints are connected by sealant; and the inner side of the sealant is provided with backing material to prevent the sealant from falling off.
10. A construction method for the construction of a basement outer wall vertical post-cast strip advance closure, characterized in that, The construction method for the construction of the structure for early closing of the vertical post-pouring belt of the basement outer wall according to any one of claims 1 to 9 comprises the following steps: S10, constructing the basement outer wall and reserving the post-pouring belt; S20, hoisting the prefabricated concrete waterproof hanging plate to the installation position; S30, temporarily supporting the hoisted prefabricated concrete waterproof hanging plate; S40, repeating steps S20 to S30 until the installation of the prefabricated concrete waterproof hanging plate is completed; S50, adding backing material to the vertical joints of adjacent prefabricated concrete waterproof hanging plates; S60, applying sealant to the vertical joints of adjacent prefabricated concrete waterproof hanging plates; S70, connecting the vertical joints and the bottom of the prefabricated hanging plate by a micro-expansion waterproof mortar; S80, laying the waterproof coiled material outside the basement outer wall and the prefabricated concrete waterproof hanging plate structure; S90, backfilling the soil layer outside the basement structure outer wall in sections and layers; S100, after the deformation and settlement of the structures on both sides of the post-pouring belt are stable, constructing the post-pouring belt and completing the closing operation of the post-pouring belt.