Anti-seepage structure of room with water and construction method of anti-seepage structure

Abstract

The invention provides an anti-seepage structure of a room with water and a construction method of the anti-seepage structure, and belongs to the technical field of drainage in buildings. Comprising a structural floor of a water room, a descending plate and a suspended ceiling, a filling layer is arranged above the descending plate, the top face of the filling layer is flush with the ground elevation of the water room, the descending plate is located in the water room, the descending size of the descending plate relative to the structural floor is not smaller than 250 mm, waterproof cavities are formed in the lower portion and the periphery of the descending plate, and the lower portion and the periphery of the descending plate are sealed. The waterproof cavity is matched with the descending plate, so that multiple water prevention and leakage prevention of a room with water are achieved.

Description

Technical Field

[0001] The present application relates to an anti-leakage structure of a water room and a construction method thereof, belonging to the technical field of drainage in buildings. Background Art

[0002] In the design of new buildings or renovation of existing buildings, there is often a contradiction between the rooms with water on the upper floor and the rooms with strict hygiene requirements on the lower floor. According to Article 6.6.1 of the "Uniform Standard for Design of Civil Buildings" GB50352-2019, due to the leakage risk of the rooms with water on the upper floor, it is not allowed to set up rooms with strict hygiene requirements directly below them. According to this regulation, the location of the rooms with water on the upper floor is greatly restricted. In some cases, in order to avoid the rooms with strict hygiene requirements on the lower floor, the function of the entire floor needs to be adjusted, resulting in unreasonable floor plan design or waste of investment.

[0003] In current design examples, if the bathroom in a hotel room is a water room and the room below is a restaurant, in order to avoid leakage, the floor of the bathroom is usually lowered to drain water on the same floor, and a reinforced concrete closed cavity is added at a certain distance directly below the lowered floor to separate the upper and lower floors. This approach also has several problems: First, because the added part is a closed reinforced concrete cavity, leakage cannot be discovered in time.

[0004] Second, a waterproof layer cannot be set up in the enclosed cavity of reinforced concrete. If water accumulates for a long time, the seepage may still break through the reinforced concrete slab and enter the lower room.

[0005] Third, the height of the reinforced concrete cavity is generally not less than 500mm, which will lead to insufficient net height of the lower room, so that the height of the entire lower floor has to be increased, resulting in a waste of investment. In addition, in the renovation of existing buildings, the floor height cannot be changed. This practice will lead to insufficient net height of the lower room, thus affecting normal use. Summary of the invention

[0006] In view of this, the present application provides a leakage-proof structure for a room with water, which effectively provides a waterproof partition between the room with water and the lower layer, realizes multiple waterproofing and leakage-proofing of the room with water, and eliminates the hidden danger of leakage water affecting the lower room.

[0007] Specifically, the present application is implemented through the following scheme: A leakage-proof structure for a room with water, comprising a structural floor and a drop plate in the room with water, a filling layer is arranged above the drop plate, the top surface of the filling layer is flush with the ground elevation of the room with water, the drop plate is located in the room with water, and the drop plate is not less than 250 mm lower than the structural floor, a waterproof cavity is arranged below and around the drop plate, and the below and around the drop plate are sealed.

[0008] The water-containing room with the above features can achieve multiple partitions for seepage, control of the descending dimension, and coordination between the sunken slab and the filling layer, ensuring that the floor height of the room remains unchanged. The sunken slab itself constitutes a primary anti-seepage measure, and the waterproof cavity below the sunken slab constitutes a secondary anti-seepage measure, effectively preventing the influence of leakage in the water-containing room on the lower floor room. The setting of the waterproof cavity also facilitates the timely maintenance of the seepage water pipe, eliminating the hidden danger of seepage water to the lower floor room.

[0009] Furthermore, as a preference: The distance between the waterproof cavity and the bottom surface of the sunken slab is 80 - 180 mm, and 180 mm is preferred.

[0010] The side wall and the inner side of the bottom surface of the sunken slab are both provided with waterproof layers. The setting of the sunken slab realizes the impartability of the waterproof layer in the water-containing room, adding an additional waterproof facility to the water-containing room.

[0011] A support structure is provided below and around the sunken slab. A sandwich layer is provided on the support structure, and the sandwich layer and the support structure form a waterproof cavity below and around the sunken slab. More preferably: The support structure includes several (such as at least two) embedded parts, several fasteners, and several keels. The embedded parts are arranged on the side surface and the bottom surface of the sunken slab, and the keels and the sandwich layer are installed through the fasteners and the embedded parts. All gaps during installation can be sealed with building sealant to ensure the tightness of the waterproof cavity.

[0012] At least one ventilation hole is provided on the sandwich layer, and a silica gel plug is provided for the ventilation hole, which is inserted into the sandwich layer from the outside. Usually, the ventilation hole is blocked with the silica gel plug. When seepage occurs, the silica gel plug is pulled out, and the seepage water in the waterproof cavity is evaporated and dried thoroughly by natural evaporation or by blowing air into one of the ventilation holes to accelerate evaporation, and then the silica gel plug is plugged again. A stainless steel anti-rat and anti-mosquito net can also be pasted with epoxy resin glue at the position corresponding to the ventilation hole on the inner side of the sandwich layer.

[0013] In the sandwich layer, the partition layer below the bottom plate of the sunken slab is a transparent partition layer. For example, the partition layer can be a glass partition layer, and this part is set with frosted treatment to form a glass frosted surface. Once leakage occurs, this part will become transparent, realizing the visualization of the leakage part, and timely discovering and repairing the water pipe at the corresponding position; when the seepage water is removed, this part returns to the opaque frosted state.

[0014] It also includes a ceiling, and the ceiling and the bottom of the waterproof cavity are integrally designed. More preferably: An inspection hole is provided on the ceiling.

[0015] An installation seat is provided on the ceiling, and the waterproof cavity is fixedly connected to the ceiling through the installation seat. The two cooperate to form a unique ceiling effect.

[0016] A construction method for a water-containing room with the above anti-leakage structure is as follows: Step 1: In the water-containing room, lower the design elevation of the structural floor slab by not less than 250 mm to form a dropped slab. Step 2: Place the water pipes in the space above the dropped slab for same-floor drainage, and then fill with lightweight aggregate concrete to the design elevation of the building floor to form a filling layer. Step 3: Clean, level the bottom surface and outer periphery of the dropped slab, measure the dimensions, prefabricate and install components with corresponding waterproof cavities according to the dimensions, and seal the installation gaps with building sealant to form a waterproof cavity under and around the dropped slab, completing the construction of the anti-leakage structure in the water-containing room.

[0017] The beneficial effects of the present invention are: (1) In this application, a dropped slab is introduced on the structural floor slab of the water-containing room. With the strong waterproof performance of the dropped slab itself, the first layer of waterproofing can be achieved; and the presence of the dropped slab also facilitates the introduction of the waterproof layer in the building structure, and this waterproof layer also forms a layer of waterproofing. Even if a small amount of seepage breaks through the two-layer waterproofing of the dropped slab and enters the waterproof cavity, since the frosted glass surface at the bottom of the waterproof cavity becomes transparent when wetted, a small amount of seepage in the waterproof cavity can be detected in a timely manner in the lower room. The connection method between the keel and the sandwich can use the thickness of the keel to confine the seepage to the sandwich at different parts, and the specific location of the leaking water pipe in the dropped slab can be detected more accurately, and the leaking water pipe in the dropped slab can be repaired in a timely manner to avoid seepage overflow. Therefore, a reliable waterproof partition is provided between the water-containing room and the lower layer, completely eliminating the hidden danger of seepage affecting the lower room, so that the water-containing room can be flexibly arranged above the room with strict hygiene requirements. (2) The waterproof cavity composed of the sandwich and the support structure generally has a height of only 180 mm, and the sandwich can be integrated with the ceiling design, occupying less floor height, which is beneficial to saving costs, especially for the renovation of existing buildings, there is more room for improvement.

[0018] In this application, by using the characteristic that the frosted glass surface at the bottom of the waterproof cavity becomes transparent when wetted, the seepage in the waterproof cavity can be detected in a timely manner in the lower room, so as to repair the leaking water pipe in the dropped slab in a timely manner. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 It is a schematic cross-sectional structure diagram of the present application; Figure 2 Schematic diagram of the three-dimensional structure of the present application; Figure 3 Another schematic sectional structure diagram of the present application; Figure 4 Schematic diagram of the bottom surface structure of another structure of the present application; Figure 5 Schematic diagram of the three-dimensional structure of another structure of the present application.

[0021] Reference numerals in the figure: 1. Water-containing room; 11. Structural floor slab; 12. Suspended ceiling; 13. Sunken slab; 14. Filling layer; 15. Waterproof layer; 2. Waterproof cavity; 3. Mezzanine; 31. Vent hole; 4. Support structure; 41. Keel; 42. Embedded part; 43. Fastener; 44. Mounting seat; 5. Sealant; 6. Inspection hole. Detailed implementation manners

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer and more understandable, the technical solutions in the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings in the embodiments of the present application. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the technical solutions of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0023] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly or indirectly located on the other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to the other component. The orientations or positions indicated by the terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positions shown in the drawings, and are only for the convenience of description and should not be construed as limiting the technical solutions of the present application.

[0024] In addition, the terms "first" and "second" are only used for the purpose of convenient description and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of technical features. The meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0025] Embodiment 1

[0026] The present application provides a leak-proof structure for a water-containing room. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0027] Refer to Figure 1 、 Figure 2 , Figure 1 、 Figure 2Schematic structural diagram showing the first structure of this embodiment.

[0028] Specifically, referring to Figure 1 , it includes the structural floor slab 11 and the dropped slab 13 of the water-containing room 1. The dropped slab 13 is located within the water-containing room 1. A filling layer 14 is provided above the dropped slab 13, and the top surface of the filling layer 14 is flush with the ground elevation of the water-containing room 1. A waterproof cavity 2 is provided below and around the dropped slab 13 to seal the bottom and periphery of the dropped slab 13.

[0029] The waterproof cavity 2 is composed of a vitreous interlayer 3 and a steel pipe support structure 4, which completely encloses and seals the bottom and side surfaces of the dropped slab 13.

[0030] The dropped slab 13 is designed to be at least 250 mm lower than the design elevation of the structural floor slab 11 of the water-containing room 1. Water pipes are arranged in the space of the dropped slab 13 for same-floor drainage. It also includes a waterproof layer 15, with a total of two layers, which is provided on the side wall and the inner side of the bottom surface of the dropped slab 13. The space of the dropped slab 13 above the waterproof layer is backfilled with lightweight aggregate concrete to the design elevation of the building ground to form the filling layer 14.

[0031] The glass thickness of the interlayer 3 is not less than 5 mm + 1.52 PVB + 5 mm, and each piece should not be larger than 1500 mm × 2400 mm. For the interlayer 3 at the bottom of the waterproof cavity 2, the inner surface of the glass is frosted. Combining Figure 2 , two circular ventilation holes 31 with a diameter of 50 mm are arranged side by side near the lower part of one side, with a spacing of about 150 mm. A stainless steel anti-rat and anti-mosquito net is pasted on the inner side of the ventilation holes 31 with epoxy resin glue, and the outer side is blocked with a circular silicone plug. The distance between the bottom surface of the interlayer 3 and the bottom surface of the dropped slab 13 is about 180 mm.

[0032] The support structure 4 includes a keel 41 made of 80 mm × 80 mm × 5 mm galvanized steel pipe and an embedded part 42 made of 150 mm × 4200 mm × 10 mm galvanized steel plate. The embedded parts 42 are installed on the bottom plate and side wall of the dropped slab 13. The end of the keel 41 is welded to the embedded part 42. The keel 41 and the glass of the interlayer 3 are combined to jointly enclose the bottom plate and side wall of the dropped slab 13. All gaps are sealed with building sealant to form a closed waterproof cavity 2.

[0033] The ventilation holes 31 on the interlayer 3 on the side of the waterproof cavity 2 are usually blocked with silicone plugs. If the frosted surface of the glass at the bottom of the waterproof cavity 2 becomes transparent due to a small amount of water seepage, the leaking water pipes in the dropped slab 13 can be detected and repaired in time in the lower room. At the same time, the silicone plugs are pulled out to allow the small amount of water seepage in the waterproof cavity 2 to naturally evaporate or blow air into one of the ventilation holes 31 to accelerate evaporation. After it is completely dry and the frosted effect of the glass frosted surface is restored, the ventilation holes 31 are still blocked with silicone plugs.

[0034] Embodiment 2

[0035] This application provides a leak-proof structure for water-containing rooms. The embodiments of this application will be described below with reference to the accompanying drawings.

[0036] Refer to Figure 3 、 Figure 4 、 Figure 5 , Figures 3 to 5 which shows the structural schematic diagram of the second structure of this embodiment.

[0037] Specifically, refer to Figure 3 , including the structural floor slab 11, the sunken slab 13 and the suspended ceiling 12 of the water-containing room 1. The sunken slab 13 is located inside the water-containing room 1. A filling layer 14 is arranged above the sunken slab 13, and the top surface of the filling layer 14 is flush with the ground elevation of the water-containing room 1. A waterproof cavity 2 is arranged below and around the sunken slab 13 to seal the lower part and the periphery of the sunken slab 13. The suspended ceiling 12 is located at the top of the lower room and is integrally designed with the sandwich layer 3 with a frosted treatment at the bottom of the waterproof cavity 2, showing a unique effect.

[0038] The waterproof cavity 2 is composed of a glass sandwich layer 3 and a steel pipe support structure 4, which encloses and seals the bottom surface and the side surface of the sunken slab 13.

[0039] The sunken slab 13 is designed to be no less than 250 mm lower than the design elevation of the structural floor slab 11 of the water-containing room 1. The water pipe is arranged in the space of the sunken slab 13 for same-floor drainage. It also includes a waterproof layer 15, with a total of two layers of the waterproof layer 15, which are arranged on the side wall and the inner side of the bottom surface of the sunken slab 13. The space of the sunken slab 13 above the waterproof layer is backfilled with lightweight aggregate concrete to the design elevation of the building ground to form the filling layer 14.

[0040] The glass thickness of the sandwich layer 3 is not less than 5 mm + 1.52 PVB + 5 mm, and each piece should not be larger than 1500 mm × 2400 mm. For the sandwich layer 3 at the bottom of the waterproof cavity 2, the inner surface of the glass is frosted. Two circular ventilation holes 31 with a diameter of 50 mm are arranged side by side near the lower part of one side surface, with a spacing of about 150 mm. The inner side of the ventilation holes 31 is pasted with a stainless steel rat and mosquito-proof net with epoxy resin glue, and the outer side is blocked with a circular silicone plug. The distance between the bottom surface of the sandwich layer 3 and the bottom surface of the sunken slab 13 is about 180 mm.

[0041] The support structure 4 includes a keel 41 made of a 80 mm × 80 mm × 5 mm galvanized steel pipe and an embedded part 42 made of a 150 mm × 4200 mm × 10 mm galvanized steel plate. The embedded part 42 is installed on the bottom plate and the side wall of the sunken slab 13, and the end of the keel 41 is welded to the embedded part 42. The keel 41 and the glass of the sandwich layer 3 are combined to jointly enclose the bottom plate and the side wall of the sunken slab 13, and all gaps are sealed with building sealant to form a sealed waterproof cavity 2.

[0042] The ventilation holes 31 on the interlayer 3 on the side of the waterproof cavity 2 are usually blocked by silicone plugs. If the frosted glass surface at the bottom of the waterproof cavity 2 becomes transparent due to a small amount of water seepage, as Figure 4 、 Figure 5 such, it is possible to detect and repair the leaking water pipe in the dropped slab 13 in the lower room in time. At the same time, pull out the silicone plug to allow the small amount of water seepage in the waterproof cavity 2 to naturally evaporate or blow air into one of the ventilation holes 31 to accelerate evaporation. After it is completely dry and the frosted glass surface restores its frosted effect, still block the ventilation holes 31 with silicone plugs.

[0043] The implementation steps of the anti-seepage structure in the above embodiment are as follows: Step 1: Lower the design elevation of the structural floor slab 11 of the water-containing room 1 by no less than 250 mm. Set two layers of waterproof layers 15 on the side wall and the inner side of the bottom plate of the dropped slab 13. Place the water pipes in the water-containing room 1 in the space of the dropped slab 13 and backfill with lightweight aggregate concrete to the design elevation of the building floor. Step 2: Clean and level the outer sides of the side wall and the bottom surface of the dropped slab 13 in the water-containing room 1 and measure its dimensions. Step 3: According to the measured dimensions, prefabricate the galvanized steel pipe keel 41 with a size of 80 mm × 80 mm × 5 mm and the segmented glass interlayer 3. The thickness of the interlayer 3 is not less than 5 mm + 1.52 PVB + 5 mm. Each piece should not be larger than 1500 mm × 2400 mm. The inner surface of the bottom laminated glass is made frosted. Two circular ventilation holes 31 with a diameter of 50 mm are arranged side by side near the lower part of one side, with a spacing of about 150 mm. The inner side is pasted with a stainless steel anti-rat and anti-mosquito net with epoxy resin glue, and the outer side is blocked with a circular silicone plug. The distance between the bottom surface of the interlayer 3 and the bottom surface of the dropped slab 13 is about 180 mm.

[0044] Step 4: Embed the embedded parts 42 made of 150 mm × 200 mm × 10 mm galvanized steel plates on the bottom plate and the side wall outside the dropped slab 13 and reserve the height of the cavity according to the design.

[0045] Step 5: Install the prefabricated interlayer 3 on the keel 41 and seal all the gaps with building sealant to form a waterproof closed cavity, that is, the waterproof cavity 2, and make the ventilation holes 31 of different segments relatively concentrated for convenient later maintenance operations. Step 6: Integrate the laminated glass 3 with a frosted surface at the bottom of the waterproof cavity 2 with the ceiling 12 to show a unique effect.

[0046] In the present invention, the ceiling 12 takes ordinary paper-faced gypsum board as an example. In practical applications, if the ceiling 12 is a grille, the grille spacing should not be less than 150 mm so as to be able to observe in a timely manner that the frosted glass at the bottom of the waterproof cavity 2 above the grille becomes transparent due to water seepage; if the paper-faced gypsum board ceiling encloses the waterproof cavity 2 thereon, it can be observed regularly through the inspection hole 6 provided in the ceiling 12 on one side of the waterproof cavity 2, and the water seepage situation can also be detected in a timely manner.

[0047] The above-described embodiments only represent several feasible implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. The embodiments are not intended to limit the protection scope in the claims of the present invention. For those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can be made. Any equivalent implementation or change made without departing from the present invention should be included in the technology of the present invention.

Claims

1. A leakage prevention structure for a water-containing room, including the structural floor slab and the dropped slab of the water-containing room. A filling layer is arranged above the dropped slab, and the top surface of the filling layer is flush with the ground elevation of the water-containing room. It is characterized in that: The sunken slab is located in the water-containing room, and the size of its descent relative to the structural floor slab is not less than 250 mm. A waterproof cavity is provided below and around the sunken slab to seal the bottom and the periphery of the sunken slab.

2. The anti-leakage structure of a water-containing room according to claim 1, characterized in that: The distance between the waterproof cavity and the bottom surface of the sunken slab is 80 - 180 mm.

3. The anti-leakage structure of a water-containing room according to claim 1, characterized in that: A waterproof layer is provided on the inner side of the side wall and the bottom surface of the sunken slab.

4. A leakage prevention structure for a water-containing room according to claim 1, characterized in that: A supporting structure is provided below and around the sunken slab. A sandwich layer is provided on the supporting structure, and the sandwich layer and the supporting structure form a waterproof cavity below and around the sunken slab.

5. The anti-leakage structure of a water-containing room according to claim 4, characterized in that: The supporting structure includes at least two embedded parts, a number of fasteners and a number of keels. The embedded parts are arranged on the side surface and the bottom surface of the sunken slab, and the keels and the sandwich layer are installed through the fasteners and the embedded parts.

6. The anti-seepage structure of a water-containing room according to claim 4, characterized in that: Vent holes are provided on the sandwich layer.

7. The anti-leakage structure of a water-containing room according to claim 4, characterized in that: In the sandwich layer, the partition layer below the bottom plate of the sunken slab is a transparent partition layer.

8. The anti-leakage structure of a water-containing room according to claim 1, characterized in that: It further includes a suspended ceiling, and the suspended ceiling and the bottom of the waterproof cavity are integrally designed.

9. The anti-leakage structure of a water-containing room according to claim 1, characterized in that: An inspection hole is provided on the suspended ceiling.

10. A construction method of the anti-seepage structure for a water-containing room according to claim 1, characterized in that, The steps are as follows: Step 1, in the water-containing room, lower the design elevation of the structural floor slab by not less than 250 mm to form a sunken slab. Step 2, place the water pipe in the space above the sunken slab, and fill lightweight aggregate concrete to the design elevation of the building ground to form a filling layer. Step 3, according to the space below and around the sunken slab, prefabricate and install the components of the corresponding waterproof cavity to form a waterproof cavity below and around the sunken slab, and complete the construction of the anti-seepage structure in the water-containing room.

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