Waterproof structure applied to cantilever structure and construction method

Abstract

The waterproof structure 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 to the cantilever plate through connecting nails, and the outer wall waterproof unit is arranged on 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] The invention relates to the technical field of cantilever structures, and in particular to a waterproof structure and a construction method applied to cantilever structures. Background Art

[0002] The development and utilization of underground space is an inevitable trend and necessary condition for urban development. It has important strategic significance for protecting the ground environment, improving urban ecology, and increasing the utilization rate of land resources. Therefore, underground waterproofing projects are the top priority and the key.

[0003] Polymer modified asphalt waterproofing membrane is the first choice for underground engineering waterproofing materials. It occupies the main market of underground engineering waterproofing materials due to its superior waterproofing performance, short construction period, durability, flexibility, good corrosion resistance, high cost performance and other advantages. Underground waterproofing usually uses waterproofing membrane to lay upward along the outer side of the basement concrete structure until it is 500mm above the outdoor floor, then do the head treatment, make a protective layer on the outside, and finally backfill with backfill materials to achieve a compaction coefficient of 0.94, ultimately achieving the purpose of making the waterproofing membrane fit tightly with the surface of the concrete structure, not easily damaged, and ensuring the waterproofing effect.

[0004] However, if there is no basement underneath the cantilevered structure on the first floor of a building, a "ㄣ"-shaped space will appear. The construction sequence is generally: pouring concrete structure → laying waterproof membrane → laying protective layer → backfilling. However, the backfill material below the cantilevered part cannot be compacted at this time, that is, its compaction coefficient cannot be guaranteed to reach 0.94. As the backfill material settles, a cavity appears above it. After the protective layer and the waterproof layer lose the external extrusion force, they will be separated from the main body of the cantilevered structure, and the protective layer and the waterproof layer on the side walls of the basement will slip and fall off, forming hollows and leaks. Due to the failure of the waterproof layer, water vapor will penetrate into the room through the gaps in the concrete structure through capillary action, causing moisture, mold, and alkali backflow to appear in the interior space of the building. Summary of the invention

[0005] The object of the present invention is to provide a waterproof structure applied to a cantilever structure to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a waterproof structure applied to a cantilever structure, which is arranged on a cantilever plate and an outer wall of a basement, comprising:

[0007] a cantilever plate waterproof unit provided on the cantilever plate, and an exterior wall waterproof unit provided on the exterior wall of the basement;

[0008] The cantilever plate waterproof unit is fixed to the cantilever plate by connecting nails, and the exterior wall waterproof unit prevents water from seeping into the exterior wall of the basement and affecting the cantilever plate.

[0009] Preferably, the connecting nails are arranged on the cantilever plate waterproof unit and the cantilever plate, and sealing paste is also provided on the connecting nails.

[0010] Preferably, the cantilever slab waterproof unit comprises a mortar layer and a paint layer, wherein the mortar layer and the paint layer are connected in a stacked state and cover the cantilever slab;

[0011] The mortar layer includes a first mortar, a mixture of cement and a second mortar;

[0012] The first mortar is disposed on the mixture cement, the mixture cement is disposed on the coating layer, and the coating layer is disposed on the second mortar.

[0013] Preferably, the exterior wall waterproofing unit comprises a mortar layer and a coiled material layer, and the mortar layer and the coiled material layer are connected in a vertical arrangement and adhere to the exterior wall of the basement;

[0014] The coiled material layer includes waterproof coating, waterproof coiled material and protective material;

[0015] The waterproof coating is arranged on the mortar layer, the waterproof coiled material is arranged on the waterproof coating, and the protective material is arranged on the waterproof coiled material.

[0016] A construction method for a waterproof structure applied to a cantilever structure, comprising the following steps:

[0017] On the cantilever slab and the outer wall of the basement, respectively, the cantilever slab waterproof unit and the outer wall waterproof unit are laid, and the connecting nails are nailed into the cantilever slab waterproof unit;

[0018] Outside the outer wall of the basement, backfill the 28% ash soil and compact it, so that the 28% ash soil and the cantilever slab form a cavity.

[0019] Preferably, the cantilever slab waterproofing unit is stacked and connected from top to bottom in the order of the first mortar, the mixture cement, the coating layer and the second mortar;

[0020] The exterior wall waterproof unit is formed by vertically bonding the first mortar, the waterproof coating, the waterproof membrane and the protective material from the inside to the outside in an instant.

[0021] Preferably, after the connecting nails are driven into the cantilever plate waterproof unit, the sealing paste is applied to the connecting nail connection.

[0022] Preferably, after the 28% ash soil is backfilled, the 28% ash soil is stacked with plain soil to prevent leakage.

[0023] Compared with the prior art, the beneficial effects of the present invention are: the waterproof structure applied to the cantilever structure, the cantilever plate waterproof unit replaces the material to make it fit the wall more closely, the self-compacting cavity formed by the 28-ash soil can effectively block the penetration of water vapor, and enhance the waterproofness of the waterproof structure, while the exterior wall waterproof unit on the exterior wall of the basement enhances the waterproofness. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of waterproofing according to an embodiment of the present invention;

[0025] Figure 2 For an embodiment of the present invention Figure 1 The enlarged schematic diagram of point A in the middle;

[0026] Figure 3 For an embodiment of the present invention Figure 1 A magnified schematic diagram of point B in the middle.

[0027] In the figure:

[0028] 2. Cantilever slab 3. First mortar 4. Mixture cement

[0029] 5. Paint layer 6. Second mortar 8. Basement exterior wall

[0030] 10. Waterproof coating 11. Waterproof membrane 12. Protective material

[0031] 13. Sealing paste 14. Connecting nail 17. Cavity

[0032] 18. Plain soil 19. 28 gray soil DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] like Figure 1As shown, the present invention provides a technical solution: a waterproof structure applied to a cantilever structure, which is arranged on a cantilever plate 2 and a basement outer wall 8, the cantilever plate 2 has a water-resistance grade of ≮P8, the basement outer wall 8 is consistent with the cantilever plate 2, and the water-resistance grade is ≮P8, including: a cantilever plate waterproof unit arranged on the cantilever plate 2, the cantilever plate waterproof unit is used to waterproof the bottom of the cantilever plate 2, and an outer wall waterproof unit arranged on the basement outer wall 8, the outer wall waterproof unit is used to waterproof the outer side of the basement outer wall 8, the cantilever plate waterproof unit is connected with nails 14, the connecting nails 14 are metal strip steel nails, the fixed center distance is 500, the size ratio is 3x25, and it is fixed on the cantilever plate 2.

[0035] like Figure 3 As shown, the connecting nail 14 is arranged on the cantilever plate waterproof unit and the cantilever plate 2, and the connecting nail 14 is also provided with a sealing paste 13, which is used to seal between the cantilever plate waterproof unit and the connecting nail 14 to prevent the problem of water vapor intrusion.

[0036] like Figure 2 As shown, the cantilever board waterproofing unit includes a mortar layer and a coating layer 5. The coating layer 5 is a 2.0 thick polymer cement waterproof coating. The mortar layer and the coating layer 5 are connected in a stacked state to cover the cantilever board 2. The mortar layer includes a first mortar 3, a mixture cement 4 and a second mortar 6. The first mortar 3 is arranged on the mixture cement 4. The first mortar 3 is DP M15 mortar, which is leveled during laying. The mixture cement 4 is a polymer cement waterproof mortar. The mortar is not as waterproof as the waterproof membrane 11, but can be more closely attached to the cantilever board 2. With the characteristic of the cavity 17 being able to isolate water vapor, it is more suitable for the bonding of the cantilever board 2. Two layers of skin will appear, just like its skin. There will be no difficulty in pasting or anchoring. It is 6-12 thick. The mixture cement 4 is arranged on the coating layer 5. The coating layer 5 is a 2.0 thick polymer cement waterproof coating. The coating layer 5 is arranged on the second mortar 6. The second mortar 6 is DP M20 mortar acts as a protective layer in the cantilever slab waterproofing unit.

[0037] The exterior wall waterproofing unit includes a mortar layer and a roll material layer. The mortar layer and the roll material layer are connected in a vertical arrangement 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 arranged on the mortar layer. The waterproof coating 10 cooperates with the waterproof roll material 11 to waterproof the basement exterior wall 8. The waterproof roll material 11 is arranged on the waterproof coating 10. The protective material 12 is arranged on the waterproof roll material 11. The protective material 12 is a soft material protective layer to prevent the outer 28-ash soil 19 from causing damage to the exterior wall waterproofing unit during the backfilling process.

[0038] A construction method for a waterproof structure applied to a cantilever structure, comprising the following steps:

[0039] On the cantilever plate 2 and the basement outer wall 8, a cantilever plate waterproof unit and an outer wall waterproof unit are laid respectively, so as to waterproof the cantilever plate 2 and the basement outer wall 8 respectively, and connecting nails 14 are nailed into the cantilever plate waterproof unit to fix the cantilever plate waterproof unit and the cantilever plate 2 to prevent the cantilever plate waterproof unit from falling off when the 28-ash soil 19 and the cantilever plate 2 form a cavity 17. After the connecting nails 14 are nailed into the cantilever plate waterproof unit, sealing paste 13 is applied to the connection of the connecting nails 14 to prevent water vapor from invading the cantilever plate 2 through the gap between the cantilever plate waterproof unit and the connecting nails 14.

[0040] Outside the basement outer wall 8, backfill the 28-ash soil 19 and compact it layer by layer, and reach a compaction coefficient of 0.94. After backfilling the 28-ash soil 19, the 28-ash soil 19 is stacked with plain soil 18 to prevent leakage, and then the 28-ash soil 19 collapses naturally, and the 28-ash soil 19 and the cantilever slab 2 form a cavity 17. The 28-ash soil 19 is hygroscopic and will harden itself after being damp, which can effectively isolate water and moisture. It is used as a backfill material, and there is no need to consider compaction under the cantilever slab 2, so that it can collapse naturally. The cavity 17 is a self-compacting cavity 17 formed by the 28-ash soil 19, which can effectively block the penetration of water vapor. Compared with commonly used clay, the 28-ash soil 19 is hygroscopic and will harden itself after being damp, which can effectively isolate water and moisture, and is more suitable for the backfill material under the cantilever slab 2.

[0041] The cantilever slab waterproofing unit is stacked and connected from top to bottom in the order of the first mortar 3, the mixed cement 4, the coating layer 5 and the second mortar 6.

[0042] The exterior wall waterproof unit is vertically connected from inside to outside in the order of the first mortar 3, the waterproof coating 10, the waterproof membrane 11 and the protective material 12.

[0043] According to the above, the present embodiment is a waterproof structure applied to a cantilever structure, which is arranged on a cantilever plate 2 and a basement outer wall 8, including a cantilever plate waterproof unit arranged on the cantilever plate 2, and an outer wall waterproof unit arranged on the basement outer wall 8, the cantilever plate waterproof unit includes a mortar layer and a coating layer 5, the mortar layer and the coating layer 5 are connected in a stacked state, covering the cantilever plate 2, the mortar layer includes a first mortar 3, a mixture cement 4 and a second mortar 6, the first mortar 3 is arranged on the mixture cement 4, the mixture cement 4 is arranged on the coating layer 5, and the coating layer 5 is arranged on the second mortar 6, the outer wall waterproof unit includes a mortar layer and a coiled material layer, the mortar layer and the coiled material layer are connected in a vertical arrangement, and fit the basement outer wall 8;

[0044] The coiled material layer includes a waterproof coating 10 , a waterproof coiled material 11 and a protective material 12 . The waterproof coating 10 is arranged on the mortar layer, the waterproof coiled material 11 is arranged on the waterproof coating 10 , and the protective material 12 is arranged on the waterproof coiled material 11 .

[0045] The cantilever slab waterproofing unit is stacked and connected from top to bottom in the order of the first mortar 3, the mixed cement 4, the coating layer 5 and the second mortar 6.

[0046] The exterior wall waterproof unit is vertically connected from inside to outside in the order of the first mortar 3, the waterproof coating 10, the waterproof membrane 11 and the protective material 12.

[0047] Thereby, compared with the original structure, it can have stronger waterproof performance, the mortar has stronger adhesion and is more suitable for the connection of the cantilever board 2. The cantilever board waterproof unit and the exterior wall waterproof unit have a 250mm extended overlap at the corner, and then the exterior wall waterproof unit is attached to the angle between the cantilever board waterproof unit and the exterior wall, and a 250mm extended overlap is made at the same time, and the above two overlaps are anchored.

[0048] According to the above, in this embodiment, the cantilever plate waterproof unit is fixed on the cantilever plate 2 by connecting nails 14 , the connecting nails 14 are arranged on the cantilever plate waterproof unit and the cantilever plate 2 , and the connecting nails 14 are also provided with sealing paste 13 .

[0049] Connecting nails 14 are nailed into the cantilever plate waterproof unit to fix the cantilever plate waterproof unit and the cantilever plate 2 to prevent the cantilever plate waterproof unit from falling off when the 28-ash soil 19 and the cantilever plate 2 form a cavity 17. After the connecting nails 14 are nailed into the cantilever plate waterproof unit, sealing paste 13 is applied to the connection of the connecting nails 14 to prevent water vapor from invading the cantilever plate 2 through the gap between the cantilever plate waterproof unit and the connecting nails 14.

[0050] As shown above, in this embodiment, outside the outer wall 8 of the basement, 28 ash soil 19 is backfilled and compacted in layers, and a compaction coefficient of 0.94 is achieved. After the 28 ash soil 19 is backfilled, the 28 ash soil 19 is stacked with plain soil 18 to prevent leakage, and then the 28 ash soil 19 collapses naturally, and the 28 ash soil 19 and the cantilever plate 2 form a cavity 17. The cavity 17 is a self-compacting cavity 17 formed by the 28 ash soil 19, which can effectively block the penetration of water vapor, and then cooperate with mortar to bond the cantilever plate 2.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waterproof structure applied to a cantilever structure, which is arranged on the cantilever plate and the outer wall of the basement, characterized in that: include: a cantilever plate waterproof unit provided on the cantilever plate, and an exterior wall waterproof unit provided on the exterior wall of the basement; The cantilever plate waterproof unit is fixed to the cantilever plate by connecting nails, and the exterior wall waterproof unit prevents water from seeping into the exterior wall of the basement and affecting the cantilever plate.

2. The waterproof structure applied to the cantilever structure according to claim 1, characterized in that: The connecting nails are arranged on the cantilever plate waterproof unit and the cantilever plate, and sealing paste is also arranged on the connecting nails.

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

4. The waterproof structure applied to the cantilever structure according to claim 3, characterized in that: 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 coiled material layer includes waterproof coating, waterproof coiled material and protective material; The waterproof coating is arranged on the mortar layer, the waterproof coiled material is arranged on the waterproof coating, and the protective material is arranged on the waterproof coiled material.

5. A construction method for a waterproof structure applied to a cantilever structure, characterized in that: Using the waterproof structure described in claim 4, the steps include: On the cantilever slab and the outer wall of the basement, respectively, the cantilever slab waterproof unit and the outer wall waterproof unit are laid, and the connecting nails are nailed into the cantilever slab waterproof unit; Outside the outer wall of the basement, backfill the 28% ash soil and compact it, so that the 28% ash soil and the cantilever slab form a cavity.

6. The construction method of a waterproof structure applied to a cantilever structure according to claim 5, characterized in that: The cantilever slab waterproofing unit is stacked and connected from top to bottom in the order of the first mortar, the mixture cement, the coating layer and the second mortar; The exterior wall waterproof unit is vertically connected from inside to outside in the order of the first mortar, the waterproof coating, the waterproof membrane and the protective material.

7. The construction method of a waterproof structure applied to a cantilever structure according to claim 5, characterized in that: After the connecting nails are driven into the cantilever plate waterproof unit, the sealing paste is applied to the connecting nail connection.

8. The construction method of a waterproof structure applied to a cantilever structure according to claim 5, characterized in that: After the 28-ash soil is backfilled, the 28-ash soil is stacked with plain soil to prevent leakage.

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