Waterproof structure applied to cantilever structure

Abstract

The utility model discloses a waterproof structure applied to a cantilever structure, which is arranged on a cantilever plate and a basement outer wall, and comprises a cantilever plate waterproof unit arranged on the cantilever plate and an outer wall waterproof unit arranged on the basement outer wall, the cantilever plate waterproof unit is fixed on the cantilever plate by a connecting nail, and the outer wall waterproof unit is fixed on the outer wall of the basement outer wall. The connecting nails are arranged on the cantilever plate waterproof unit and the cantilever plate, sealant is further arranged on the connecting nails, the cantilever plate waterproof unit comprises a mortar layer and a coating layer, and the mortar layer and the coating layer are connected in a stacked mode and cover the cantilever plate. According to the waterproof structure applied to the cantilever structure, materials of the cantilever plate waterproof unit are replaced so that the cantilever plate waterproof unit can be better attached to the wall body, a self-compacting cavity formed by duty-eight lime soil can effectively block permeation of water vapor, the waterproofness of the waterproof structure is enhanced, and meanwhile the waterproofness is enhanced through the outer wall waterproof unit on the basement outer wall.

Description

Technical Field

[0001] This utility model relates to the field of cantilever structure technology, specifically a waterproof structure applied to cantilever structures. Background Technology

[0002] For waterproofing underground engineering projects, polymer-modified bitumen waterproof membranes are the preferred choice due to their superior waterproofing performance, short construction period, durability, flexibility, good corrosion resistance, and high cost-effectiveness, which makes them the main market share for underground waterproofing materials. The typical underground waterproofing method involves laying the waterproof membrane along the outer side of the basement concrete structure's exterior walls, extending upwards to 500mm above the outdoor ground level, where a finishing treatment is applied. A protective layer is then applied to the outer side, and finally, backfill material is used to achieve a compaction coefficient of 0.94. This ensures a tight bond between the waterproof membrane and the concrete structure surface, preventing damage and guaranteeing the waterproofing effect.

[0003] However, sometimes the cantilevered structure on the first floor of a building does not have a basement underneath, resulting in a "ㄣ"-shaped space. The construction sequence is generally: pouring concrete structure → laying waterproof membrane → laying protective layer → backfilling. However, the backfill material under the cantilevered part cannot be compacted at this time, meaning that the compaction coefficient cannot be guaranteed to reach 0.94. As the backfill material settles, a cavity appears above it. After the protective layer and waterproof layer lose external pressure, they will peel off from the main body of the cantilever structure. This will also cause the protective layer and waterproof layer of the basement exterior wall to slip and fall off, forming hollows and leaks. Due to the failure of the waterproof layer, moisture will seep into the room through capillary action along the gaps in the concrete structure, causing dampness, mold, efflorescence, and other phenomena in the interior space of the building. Summary of the Invention

[0004] The purpose of this invention is to provide a waterproof structure for cantilever structures to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof structure applied to cantilever structures, which is installed on the cantilever slab and the exterior wall of the basement, comprising:

[0006] A cantilever slab waterproofing unit installed on the cantilever slab, and an exterior wall waterproofing unit installed on the exterior wall of the basement;

[0007] The cantilever slab waterproofing unit is fixed to the cantilever slab with connecting nails, and the exterior wall waterproofing unit prevents water seepage from the basement exterior wall, thus preventing water from affecting the cantilever slab.

[0008] Preferably, the connecting nail is disposed on the cantilever waterproof unit and the cantilever plate, and the connecting nail is also provided with sealant.

[0009] Preferably, the waterproof unit for the cantilever slab includes a mortar layer and a coating layer, wherein the mortar layer and the coating layer are stacked and connected to cover the cantilever slab;

[0010] The mortar layer includes a first mortar, a cement mixture, and a second mortar;

[0011] The first mortar is placed on the mixed cement, the mixed cement is placed on the coating layer, and the coating layer is placed on the second mortar.

[0012] Preferably, the exterior wall waterproofing unit includes a mortar layer and a roll material layer, wherein the mortar layer and the roll material layer are connected in a vertical arrangement and adhere to the exterior wall of the basement;

[0013] The roll layer includes a waterproof coating, a waterproof roll, and a protective material;

[0014] The waterproof coating is applied to the mortar layer, the waterproof membrane is applied to the waterproof coating, and the protective material is applied to the waterproof membrane.

[0015] Preferably, the basement exterior wall is provided with 2:8 lime-soil mixture, which is piled with plain soil. After sedimentation, a cavity is formed between the 2:8 lime-soil mixture and the cantilever slab waterproof unit.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the waterproof structure applied to the cantilever structure has a waterproof unit with the cantilever slab made of different materials to fit the wall better, and the self-compacting cavity formed by the 2:8 lime-soil can effectively block the penetration of water vapor and enhance the waterproof performance of the waterproof structure. At the same time, the waterproof unit on the exterior wall of the basement has enhanced the waterproof performance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram illustrating the waterproofing of an embodiment of the present invention;

[0018] Figure 2 This is an embodiment of the present utility model. Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This is an embodiment of the present utility model. Figure 1 Enlarged diagram of point B in the middle.

[0020] In the picture:

[0021] 2. Cantilever slab; 3. First mortar; 4. Mixed cement.

[0022] 5. Paint layer; 6. Second mortar; 8. Basement exterior wall

[0023] 10. Waterproof coating 11. Waterproof membrane 12. Protective materials

[0024] 13. Sealant 14. Connecting pin 17. Cavity

[0025] 18. Plain soil; 19. Two-eighths lime-soil Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figure 1 As shown, this utility model provides a technical solution: a waterproof structure applied to a cantilever structure, which is installed on the cantilever slab 2 and the basement exterior wall 8. The cantilever slab 2 has a waterproofing grade of ≥P8, and the basement exterior wall 8 is the same as the cantilever slab 2, with a waterproofing grade of ≥P8. It includes: a cantilever slab waterproof unit installed on the cantilever slab 2, which is used to waterproof the bottom of the cantilever slab 2; and an exterior wall waterproof unit installed on the basement exterior wall 8, which is used to waterproof the outside of the basement exterior wall 8. The cantilever slab waterproof unit is fixed to the cantilever slab 2 by connecting nails 14, which are metal pressure strip steel nails with a fixing center distance of 500 and a size ratio of 3x25.

[0028] like Figure 3 As shown, the connecting nail 14 is provided on the cantilever slab waterproof unit and the cantilever slab 2. The connecting nail 14 is also provided with sealant 13. The sealant 13 is used to seal the cantilever slab waterproof unit and the connecting nail 14 to prevent moisture intrusion.

[0029] like Figure 2As shown, the cantilever slab waterproofing unit includes a mortar layer and a coating layer 5. The coating layer 5 is a 2.0mm thick polymer cement waterproof coating. The mortar layer and the coating layer 5 are stacked and connected, covering the cantilever slab 2. The mortar layer includes a first mortar 3, a mixed cement 4, and a second mortar 6. The first mortar 3 is placed on the mixed cement 4 and is DP M15 mortar. Leveling is performed during laying. The mixed cement 4 is polymer cement waterproof mortar. The mortar is not as waterproof as the waterproof membrane 11, but it can adhere better to the cantilever slab 2. Combined with the moisture-proofing feature of the cavity 17, it is more suitable for bonding the cantilever slab 2. It will have two layers, like skin, without the problems of difficult adhesion or anchoring. It is 6-12mm thick. The mixed cement 4 is placed on the coating layer 5, which is a 2.0mm thick polymer cement waterproof coating. The coating layer 5 is placed on the second mortar 6, which is DP M15 mortar. M20 mortar acts as a protective layer in the waterproof unit of the cantilever slab.

[0030] The exterior wall waterproofing unit includes a mortar layer and a roll material layer, which are vertically connected and adhere to the basement exterior wall 8. The roll material layer includes a waterproof coating 10, a waterproof roll material 11, and a protective material 12. The waterproof coating 10 is applied to the mortar layer and works with the waterproof roll material 11 to waterproof the basement exterior wall 8. The waterproof roll material 11 is applied to the waterproof coating 10, and the protective material 12 is applied to the waterproof roll material 11. The protective material 12 is a soft material protective layer to prevent the outer 2:8 lime-soil 19 from damaging the exterior wall waterproofing unit during backfilling.

[0031] A construction method for a waterproof structure applied to a cantilever structure, comprising the following steps:

[0032] Waterproofing units for the cantilever slab 2 and the basement exterior wall 8 are laid on the cantilever slab 2 and the basement exterior wall 8 respectively to waterproof the cantilever slab 2 and the basement exterior wall 8 respectively. Connecting nails 14 are driven into the waterproofing units of the cantilever slab 2 to fix the waterproofing units of the cantilever slab 2 and the cantilever slab 2, so as to prevent the waterproofing units of the cantilever slab 2 from falling off when the 2:8 lime-soil 19 and the cantilever slab 2 form a cavity 17. After driving the connecting nails 14 into the waterproofing units of the cantilever slab 2, sealant 13 is applied to the joint of the connecting nails 14 to prevent moisture from entering the cantilever slab 2 through the gap between the waterproofing units of the cantilever slab 2 and the connecting nails 14.

[0033] Outside the basement exterior wall 8, backfill with 2:8 lime-soil 19 and compact it in layers to achieve a compaction coefficient of 0.94. After backfilling with 2:8 lime-soil 19, it is piled with plain soil 18 to prevent leakage. Then, the 2:8 lime-soil 19 collapses naturally, forming a cavity 17 with the cantilever slab 2. The 2:8 lime-soil 19 is hygroscopic and hardens when damp, effectively preventing water and moisture penetration. As a backfill material, it does not need to be compacted under the cantilever slab 2, allowing it to collapse naturally. The cavity 17 is a self-compacting cavity formed by the 2:8 lime-soil 19, which effectively blocks the penetration of water vapor. Compared with commonly used clay, the 2:8 lime-soil 19 has the characteristics of hygroscopicity and hardening when damp, effectively preventing water and moisture penetration, making it more suitable as a backfill material under the cantilever slab 2.

[0034] The cantilever slab waterproofing units are stacked and connected from top to bottom in the order of first mortar 3, mixed cement 4, coating layer 5, and second mortar 6.

[0035] The exterior wall waterproofing units are vertically bonded together from the inside out in the order of first mortar 3, waterproof coating 10, waterproof membrane 11, and protective material 12.

[0036] As described above, this embodiment is a waterproof structure applied to a cantilever structure, which is installed on the cantilever slab 2 and the basement exterior wall 8. It includes a cantilever slab waterproof unit installed on the cantilever slab 2 and an exterior wall waterproof unit installed on the basement exterior wall 8. The cantilever slab waterproof unit includes a mortar layer and a coating layer 5, which are stacked and connected to cover the cantilever slab 2. The mortar layer includes a first mortar 3, a mixed cement 4, and a second mortar 6. The first mortar 3 is installed on the mixed cement 4, the mixed cement 4 is installed on the coating layer 5, and the coating layer 5 is installed on the second mortar 6. The exterior wall waterproof unit includes a mortar layer and a roll material layer, which are vertically arranged and connected to adhere to the basement exterior wall 8.

[0037] The roll layer includes a waterproof coating 10, a waterproof roll 11, and a protective material 12. The waterproof coating 10 is applied to the mortar layer, the waterproof roll 11 is applied to the waterproof coating 10, and the protective material 12 is applied to the waterproof roll 11.

[0038] The cantilever slab waterproofing units are stacked and connected from top to bottom in the order of first mortar 3, mixed cement 4, coating layer 5, and second mortar 6.

[0039] The exterior wall waterproofing units are vertically bonded together from the inside out in the order of first mortar 3, waterproof coating 10, waterproof membrane 11, and protective material 12.

[0040] This results in stronger waterproofing compared to the original structure. The mortar has stronger adhesion and is more suitable for the connection of the cantilever slab 2. At the corner of the cantilever slab waterproofing unit and the exterior wall waterproofing unit, a 250mm extended overlap is made. Then, the exterior wall waterproofing unit is attached to the corner of the cantilever slab waterproofing unit and the exterior wall, with a 250mm extended overlap. Anchoring is then performed on the two overlaps mentioned above.

[0041] As shown above, in this embodiment, the cantilever slab waterproof unit is fixed to the cantilever slab 2 by the connecting nail 14. The connecting nail 14 is provided on the cantilever slab waterproof unit and the cantilever slab 2, and the connecting nail 14 is also provided with sealant 13.

[0042] Connecting nails 14 are driven into the cantilever slab waterproof unit to fix the cantilever slab waterproof unit and the cantilever slab 2, preventing the cantilever slab waterproof unit from falling off when the cavity 17 is formed between the 2:8 lime-soil 19 and the cantilever slab 2. After driving the connecting nails 14 into the cantilever slab waterproof unit, sealant 13 is applied to the connection of the connecting nails 14 to prevent moisture from entering the cantilever slab 2 through the gap between the cantilever slab waterproof unit and the connecting nails 14.

[0043] As shown above, in this embodiment, outside the basement exterior wall 8, a 2:8 lime-soil mixture 19 is backfilled and compacted in layers to achieve a compaction coefficient of 0.94. After backfilling the 2:8 lime-soil mixture 19, it is piled up with plain soil 18 to prevent leakage. Then, the 2:8 lime-soil mixture 19 naturally collapses, and the 2:8 lime-soil mixture 19 and the cantilever slab 2 form a cavity 17. The cavity 17 is a self-compacting cavity formed by the 2:8 lime-soil mixture 19, which can effectively block the penetration of water vapor. This is combined with the mortar bonding the cantilever slab 2.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproof structure applied to cantilever structures, installed on the cantilever slab and the exterior wall of the basement, characterized in that, include: A cantilever slab waterproofing unit installed on the cantilever slab, and an exterior wall waterproofing unit installed on the exterior wall of the basement; The cantilever slab waterproofing unit is fixed to the cantilever slab with connecting nails, and the external wall waterproofing unit prevents water seepage from the basement exterior wall, thus preventing it from affecting the cantilever slab. The exterior wall waterproofing unit includes a mortar layer and a roll material layer, wherein the mortar layer and the roll material layer are connected in a vertical arrangement and adhere to the exterior wall of the basement; The roll layer includes a waterproof coating, a waterproof roll, and a protective material; The waterproof coating is applied to the mortar layer, the waterproof membrane is applied to the waterproof coating, and the protective material is applied to the waterproof membrane.

2. The waterproof structure applied to a cantilever structure according to claim 1, characterized in that, The connecting nail is provided on the cantilever waterproof unit and the cantilever plate, and the connecting nail is also provided with sealant.

3. A waterproof structure applied to a cantilever structure according to claim 1 or 2, characterized in that: The cantilever slab waterproofing unit includes a mortar layer and a coating layer, wherein the mortar layer and the coating layer are stacked and connected to cover the cantilever slab; The mortar layer includes a first mortar, a cement mixture, and a second mortar; The first mortar is placed on the mixed cement, the mixed cement is placed on the coating layer, and the coating layer is placed on the second mortar.

4. A waterproof structure applied to a cantilever structure according to claim 3, characterized in that: A 2:8 lime-soil mixture is applied to the exterior wall of the basement. The lime-soil mixture is piled with plain soil. After sedimentation, a cavity is formed between the lime-soil mixture and the cantilever slab waterproof unit.

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