A two-wall-in-one deep basement waterproofing joint and construction method

Abstract

The present invention discloses a two-wall-in-one deep basement waterproofing joint and construction method. The foundation slab utilizes flexible waterproofing materials such as waterproofing membranes, while the underground continuous wall and inner lining wall utilize rigid waterproofing materials such as permeable crystallization. The foundation slab waterproofing membrane is installed until it reaches the underground continuous wall for sealing. A groove is cut at the interface between the underground continuous wall and the foundation slab, and cement is sprayed on it. A permeable crystallization waterproofing coating is then applied to the contact surface. The permeable crystallization waterproofing coating is applied from the outside to the inside at the construction joint and applied to the inner side of the inner lining wall. Horizontal construction joints are provided above and below the intersection of the basement structural floor and the inner lining wall. The permeable crystallization waterproofing coating is then applied from the inside to the outside and then back to the inside along the construction joint and the underground continuous wall, achieving a completely enclosed waterproof layer. This joint and construction method can combine rigid and flexible waterproofing technologies, avoiding their respective shortcomings, giving full play to the positive effects of rigid and flexible waterproofing, and achieving a good waterproofing effect.

Description

Technical Field

[0001] The invention belongs to the field of building construction, and in particular relates to a two-wall-in-one deep basement waterproofing node and a construction method. Background Art

[0002] With the development of my country's urban modernization construction, the construction method of two walls in one is more and more common, that is, the ground-connected wall is used as a structural wall. However, leakage is prone to occur between the ground-connected wall and the bottom plate, floor plate, and top plate, and waterproofing treatment is required.

[0003] The prior art can refer to the patent with announcement number CN110230325A, which discloses a flexible connection construction method for the basement floor and the supporting ground-connected wall. A connector is set in the ground-connected wall to connect with the steel bars of the floor, and then the floor is cast to realize the connection between the ground-connected wall and the floor. An extruded board is set at the position where the ground-connected wall connects to the floor for waterproofing.

[0004] However, with the development of the industry, the requirements for the waterproof performance of underground projects are getting higher and higher, especially for complex underground projects. Improving the quality of waterproof construction of underground projects can effectively prevent leakage, protect the building structure and extend the service life of the building. The above-mentioned existing technology uses extruded boards to achieve waterproofing of the structure, which has a poor anti-leakage effect. The structure has a high risk of leakage after a long time and is easy to damage the building structure, resulting in a relatively short service life of the building. Summary of the Invention

[0005] The present invention provides a two-wall-in-one deep basement waterproofing node and construction method, which is used to solve the technical problems that the existing technology uses extruded boards to achieve waterproofing, such as poor anti-leakage effect, high risk of leakage after a long period of time, easy damage to the building structure, and relatively short service life of the building.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a two-wall-in-one deep basement waterproofing node, comprising a self-waterproof reinforced concrete foundation slab, an underground continuous wall, a structural floor slab and a basement top slab, wherein reserved steel bars and connectors are arranged in the underground continuous wall, and the steel bars in the self-waterproof reinforced concrete foundation slab are connected to the reserved steel bars through the connectors, and the bottom of the self-waterproof reinforced concrete foundation slab is paved with a foundation slab waterproofing membrane, a groove is chiseled at the portion where the underground continuous wall cooperates with the self-waterproof reinforced concrete foundation slab, and an inner lining wall guide wall is provided on the top of the self-waterproof reinforced concrete foundation slab, and the inner walls on three sides of the groove are respectively sprayed with base The foundation base plate is penetrated by a crystalline waterproof coating layer, the bottom edge of the foundation base plate is flush with the height of the foundation base plate waterproof membrane, the end of the foundation base plate waterproof membrane close to the underground continuous wall is raised and placed on the foundation base plate penetrated by a crystalline waterproof coating layer, a foundation base plate waterproof membrane sealing material is arranged between the end of the foundation base plate waterproof membrane and the vertical edge of the foundation base plate penetrated by a crystalline waterproof coating layer, the top of the lining wall guide wall is fixedly constructed with an lining wall, the top of the lining wall guide wall is sprayed with a lower construction joint penetrated by a crystalline waterproof coating layer, the inner surface of the lining wall is sprayed with an lining wall penetrated by a crystalline waterproof coating layer and the lining wall penetrated by a crystalline waterproof coating layer. Blocks are arranged on the inner side, a construction joint is left in the middle of the height of the lining wall, and a structural floor is constructed in the construction joint, the underground continuous wall corresponding to the structural floor is sprayed with a structural floor penetrating crystalline waterproof coating layer, the upper and lower ends of the structural floor and the lining wall are sprayed with a middle construction joint penetrating crystalline waterproof coating layer, the top of the lining wall is sprayed with an upper construction joint penetrating crystalline waterproof coating layer, the top of the upper construction joint penetrating crystalline waterproof coating layer is constructed with a top plate beam, the top of the top plate beam is constructed with a basement top plate, the outer surfaces of the top plate beam and the basement top plate are sprayed with a top plate penetrating crystalline waterproof coating layer, and the top plate penetrating crystalline waterproof coating layer extends to the top of the basement top plate. The top of the underground continuous wall is lower than the top of the basement roof. The top of the basement is also paved with a basement roof waterproof membrane. The basement roof waterproof membrane is overlapped on the top of the roof penetrating crystalline waterproof coating layer. The basement roof waterproof membrane extends and turns to the top of the underground continuous wall and the basement roof waterproof membrane sealing material is sealed. The foundation bottom plate penetrating crystalline waterproof coating layer, the lower construction joint penetrating crystalline waterproof coating layer, the lining wall penetrating crystalline waterproof coating layer, the middle construction joint penetrating crystalline waterproof coating layer, the lining wall penetrating crystalline waterproof coating layer, the upper construction joint penetrating crystalline waterproof coating layer and the top plate penetrating crystalline waterproof coating layer are continuously closed and connected.

[0007] By adopting the above technical scheme, flexible waterproof materials such as waterproof membrane are used for waterproof reinforced concrete foundation slab, rigid waterproof materials such as penetrating crystallization are used for underground continuous wall and lining wall design, the foundation slab waterproof membrane is constructed to the underground continuous wall for sealing, the groove at the interface between the underground continuous wall and the foundation slab is cut and sprayed with cement, and a penetrating crystallization waterproof coating layer is applied on the contact surface and the underground continuous wall reinforcement. The penetrating crystallization waterproof coating layer at the construction joint position is turned from the outside to the inside and is applied to the inside of the lining wall. Horizontal construction joints are set above and below at the intersection of the basement structure floor and the lining wall. The penetrating crystallization waterproof coating layer completes the transition from inside to outside and then to inside along the construction joint and the underground continuous wall, realizing a completely closed waterproof layer. In addition, the use of blocks for protection can achieve structural stability and ensure service life. This node and construction method can combine rigid waterproofing and flexible waterproofing technologies to avoid their respective defects, give full play to the positive effects of rigid waterproofing and flexible waterproofing, and have good waterproofing effect. The used penetrating crystalline waterproof coating is non-toxic and harmless, green and environmentally friendly, and the self-adhesive waterproof membrane does not require hot-melt connection. There is no dust and pollution during construction, and the environmental benefits are obvious. The construction sequence is optimized. The penetrating crystalline waterproof coating in the lining wall area can be applied after the lining wall construction is completed, which does not affect the lining wall structure construction. The penetrating crystalline waterproof coating is quick to construct, saves the basement structure construction period, reduces the foundation pit risk, and has good social benefits.

[0008] Preferably, the depth of the groove chiseled at the intersection of the underground continuous wall and the self-waterproof reinforced concrete foundation bottom plate is not less than 60 mm.

[0009] By adopting the above technical solution, in this embodiment, a 60mm deep groove is chiseled at the intersection of the underground continuous wall and the self-waterproof reinforced concrete foundation slab. In other embodiments, a groove of not less than 60mm in depth is chiseled to ensure maximum waterproofing effect and meet waterproofing requirements and service life.

[0010] Preferably, the foundation slab waterproof membrane is pre-laid and fixed with reverse bonding, a foundation slab waterproof protective layer is poured on top of the foundation slab waterproof membrane, and a self-waterproof reinforced concrete foundation slab is poured on top of the foundation slab waterproof protective layer.

[0011] By adopting the above technical solution, the base plate waterproofing membrane is prevented from being damaged, thereby ensuring good stability of the waterproofing effect and a long service life.

[0012] Preferably, the basement roof waterproofing membrane is pre-laid and fixed with reverse glue, and a basement roof waterproofing protective layer is poured on top of the basement roof waterproofing membrane.

[0013] By adopting the above technical solution, the basement roof waterproofing membrane is prevented from being damaged, thereby ensuring good stability of the waterproofing effect and a long service life.

[0014] Preferably, a polystyrene board is fixedly provided at the junction of the outer side of the basement top plate and the soil, and the polystyrene board is located on the outer side of the top plate beam.

[0015] By adopting the above technical solution, polystyrene boards are used to protect the junction between the outer side of the basement top plate and the soil, ensuring good waterproofing effect.

[0016] Preferably, a grouting pipe is pre-buried when the reinforcement of the self-waterproof reinforced concrete foundation bottom plate is tied, and the diameter of the grouting pipe is 10-12 mm.

[0017] By adopting the above technical solution and grouting for connection, good connectivity between the underground continuous wall and the self-waterproof reinforced concrete foundation slab is ensured.

[0018] Preferably, steel plate waterstops are provided between the lining wall and the lining wall guide wall, the structural floor slab and the top plate beam respectively.

[0019] By adopting the above technical solution, it is possible to cooperate with the penetrating crystalline waterproof coating layer to achieve better waterproof effect.

[0020] Preferably, the thickness of the foundation bottom plate penetrating crystalline waterproof coating layer, the lower construction joint penetrating crystalline waterproof coating layer, the lining wall penetrating crystalline waterproof coating layer, the middle construction joint penetrating crystalline waterproof coating layer, the lining wall penetrating crystalline waterproof coating layer, the upper construction joint penetrating crystalline waterproof coating layer and the top plate penetrating crystalline waterproof coating layer are all not less than 100 mm.

[0021] By adopting the above technical solution, the thickness is appropriate and the waterproof effect is good.

[0022] Preferably, the thickness of the building block is not less than 100 mm.

[0023] By adopting the above technical solution, the protection effect is good and the structural stability is guaranteed to be strong.

[0024] A two-wall-in-one deep basement waterproof joint includes the following steps:

[0025] Step 1: After the construction of the underground continuous wall is completed, the part where the underground continuous wall and the self-waterproof reinforced concrete foundation slab meet is chiseled out, and the part where the underground continuous wall and the self-waterproof reinforced concrete foundation slab meet is sprayed with a base slab penetrating crystalline waterproof coating layer. The base slab penetrating crystalline waterproof coating layer is continuous from the bottom of the self-waterproof reinforced concrete foundation slab to the height of the inner lining wall guide wall;

[0026] Step 2: Waterproof the bottom of the self-waterproof reinforced concrete foundation slab using the pre-laid reverse-adhesive construction technology of the foundation slab waterproof membrane. The foundation slab waterproof membrane is overlapped on the top of the foundation slab permeable crystalline waterproof coating layer and sealed with the foundation slab waterproof membrane sealing material at the corners;

[0027] Step 3: After the self-waterproof reinforced concrete foundation slab and the inner lining wall guide wall concrete are poured, a construction joint penetrating crystalline waterproof coating layer is applied to the top surface of the inner lining wall guide wall to close the base plate penetrating crystalline waterproof coating layer applied to the self-waterproof reinforced concrete foundation slab;

[0028] Step 4: The inner lining wall is constructed and a steel plate water stop is set between the inner lining wall guide wall. After the inner lining wall construction is completed and the formwork is removed, a layer of penetrating crystalline waterproof coating is applied to the inner lining wall indoors to form a seal with the penetrating crystalline waterproof coating layer at the lower construction joint;

[0029] Step 5: When the inner lining wall is constructed to the bottom of the structural floor beam, a construction joint is left, a steel plate water stop is installed, and a construction joint penetrating crystalline waterproof coating layer is applied at the construction joint position to form a closed layer with the inner lining wall penetrating crystalline waterproof coating layer;

[0030] Step 6: Repeat step 5, that is, carry out waterproofing construction at the junction of each basement lining wall and structural floor slab in sequence until the construction reaches the basement top slab;

[0031] Step 7: When the inner lining wall is constructed to the bottom of the roof beam, a construction joint is left, a steel plate waterstop is set, and a construction joint penetrating crystalline waterproof coating layer is sprayed between the inner lining wall and the roof beam to form a closed layer with the inner lining wall penetrating crystalline waterproof coating layer. A roof plate penetrating crystalline waterproof coating layer is sprayed on the outer surface of the inner lining wall, the roof beam and the basement roof;

[0032] Step 8. After the construction of the basement top plate is completed, the top plate penetrating crystalline waterproof coating layer extends and turns to the top of the basement top plate, and the basement top plate waterproof membrane is laid on the top of the basement. The basement top plate waterproof membrane overlaps the top of the top plate penetrating crystalline waterproof coating layer, and the basement top plate waterproof membrane extends and turns to the top of the underground continuous wall and the basement top plate waterproof membrane sealing material is sealed.

[0033] The beneficial effects of the present invention are as follows: (1) the present invention gives full play to the positive effects of rigid waterproofing and flexible waterproofing, has a good waterproofing effect, ensures the safety of the basement and the surrounding environment, and has good social benefits.

[0034] (2) The penetrating crystallization waterproof coating used in the present invention is non-toxic and harmless, green and environmentally friendly, and the self-adhesive waterproof membrane does not require hot-melt connection. There is no dust and pollution during the construction process, and the environmental benefits are obvious.

[0035] (3) The present invention optimizes the construction sequence. The penetrating crystalline waterproof coating in the lining wall area can be applied after the lining wall construction is completed, which does not affect the lining wall structure construction. In addition, the penetrating crystalline waterproof coating is quick to construct, which saves the construction period of the basement structure, reduces the risk of the foundation pit, and has good social benefits.

[0036] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or may be understood by practicing the present invention; the main purpose and other advantages of the present invention can be realized and obtained through the solutions particularly pointed out in the description. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a structural diagram of a self-waterproof reinforced concrete foundation bottom plate according to an embodiment of the present invention;

[0038] Figure 2 This is a schematic structural diagram of a structural floor according to an embodiment of the present invention;

[0039] Figure 3 It is a structural schematic diagram of the basement top plate according to an embodiment of the present invention.

[0040] Figure numerals: 1. Self-waterproof reinforced concrete foundation slab; 2. Underground continuous wall; 3. Structural floor slab; 4. Basement roof slab; 5. Reserved steel bars; 6. Foundation slab waterproofing membrane; 7. Groove; 8. Lining wall guide wall; 9. Foundation slab penetrating crystalline waterproof coating layer; 10. Foundation slab waterproofing membrane sealing material; 11. Lining wall; 12. Lower construction joint penetrating crystalline waterproof coating layer; 13. Lining wall penetrating crystalline waterproof coating layer; 14. Building block; 15. Structural floor slab penetrating crystalline waterproof coating layer; 16. Middle construction joint penetrating crystalline waterproof coating layer; 17. Upper construction joint penetrating crystalline waterproof coating layer; 18. Roof beam; 19. Roof penetrating crystalline waterproof coating layer; 20. Basement roof waterproofing membrane; 21. Basement roof waterproofing membrane sealing material; 22. Foundation slab waterproofing protective layer; 23. Basement roof waterproofing protective layer; 24. Polystyrene board; 25. Grouting pipe; 26. Steel plate waterstop. DETAILED DESCRIPTION

[0041] The technical solutions of the present invention are described in detail below through examples. The following examples are merely exemplary and can only be used to explain and illustrate the technical solutions of the present invention, and cannot be interpreted as limiting the technical solutions of the present invention.

[0042] Combine Figure 1-3, a two-wall-in-one deep basement waterproof node, including a self-waterproof reinforced concrete foundation slab 1, an underground continuous wall 2, a structural floor slab 3 and a basement top slab 4, the underground continuous wall 2 is provided with a reserved steel bar 5 and a connector, the steel bar in the self-waterproof reinforced concrete foundation slab 1 is connected to the reserved steel bar 5 through the connector, the bottom of the self-waterproof reinforced concrete foundation slab 1 is paved with a waterproof membrane, the underground continuous wall 2 and the self-waterproof reinforced concrete foundation slab 1 match the portion where the self-waterproof reinforced concrete foundation slab is chiseled with a groove 7, the top of the self-waterproof reinforced concrete foundation slab 1 is provided with an inner lining wall guide wall 8, and the inner walls on three sides of the groove 7 are respectively sprayed with a foundation slab penetrating crystalline waterproof coating layer 9, the foundation slab penetrating crystalline waterproof The bottom edge of the coating layer 9 is flush with the height of the waterproof membrane. The end of the waterproof membrane close to the underground continuous wall 2 is raised and placed on the foundation bottom plate penetrating crystalline waterproof coating layer 9. A foundation bottom plate waterproof membrane sealing material 10 is arranged between the end of the waterproof membrane and the vertical edge of the foundation bottom plate penetrating crystalline waterproof coating layer 9. The top of the lining wall guide wall 8 is fixedly constructed with an lining wall 11. The top of the lining wall guide wall 8 is sprayed with a lower construction joint penetrating crystalline waterproof coating layer 12. The inner surface of the lining wall 11 is sprayed with an inner lining wall penetrating crystalline waterproof coating layer 13 and a building block 14 is arranged on the inner side of the inner lining wall penetrating crystalline waterproof coating layer 13. A construction joint is left in the middle of the height of the lining wall 11 and a The structural floor 3 and the underground continuous wall 2 corresponding to the structural floor 3 are sprayed with a structural floor penetrating crystalline waterproof coating layer 15, the upper and lower ends of the structural floor 3 and the lining wall 11 are sprayed with a middle construction joint penetrating crystalline waterproof coating layer 16, the top of the lining wall 11 is sprayed with an upper construction joint penetrating crystalline waterproof coating layer 17, the top of the upper construction joint penetrating crystalline waterproof coating layer 17 is constructed with a top plate beam 18, the top of the top plate beam 18 is constructed with a basement top plate 4, the outer sides of the top plate beam 18 and the basement top plate 4 are sprayed with a top plate penetrating crystalline waterproof coating layer 19, the top plate penetrating crystalline waterproof coating layer 19 extends and turns to the top of the basement top plate 4, and the top of the underground continuous wall 2 is lower than The top of the basement top plate 4 and the top of the basement are also laid with a basement top plate waterproofing membrane 20, which is overlapped on the top of the top plate penetrating crystalline waterproof coating layer 19. The basement top plate waterproofing membrane 20 extends and turns to the top of the underground continuous wall 2 and is sealed with a basement top plate waterproofing membrane sealing material 21. The foundation bottom plate penetrating crystalline waterproof coating layer 9, the lower construction joint penetrating crystalline waterproof coating layer 12, the lining wall penetrating crystalline waterproof coating layer 13, the middle construction joint penetrating crystalline waterproof coating layer 16, the lining wall penetrating crystalline waterproof coating layer 13, the upper construction joint penetrating crystalline waterproof coating layer 17 and the top plate penetrating crystalline waterproof coating layer 19 are continuously and closedly connected.

[0043] The self-waterproof reinforced concrete foundation slab 1 adopts flexible waterproof materials such as waterproof membrane, and the underground continuous wall 2 and the lining wall 11 are designed to adopt rigid waterproof materials such as penetrating crystallization. The foundation slab waterproof membrane 6 is constructed to the underground continuous wall 2 for sealing. The groove 7 at the interface between the underground continuous wall 2 and the foundation slab is cut and sprayed with cement, and the penetrating crystallization type waterproof coating is applied on the contact surface and the reinforcement of the underground continuous wall 2. The penetrating crystallization type waterproof coating at the construction joint position is applied from the outside to the inside on the inner side of the lining wall 11. The basement structure floor 3 and the lining wall 11 are connected at the intersection, and horizontal construction joints are set up above and below. The penetrating crystallization type waterproof coating completes the conversion from inside to outside and then to inside along the construction joint and the underground continuous wall 2, realizing a completely closed waterproof layer, and adopts The protection of the building blocks 14 can achieve structural stability and ensure service life. The node and construction method can combine the two types of waterproofing technologies, rigid waterproofing and flexible waterproofing, avoid their respective defects, give full play to the positive effects of rigid waterproofing and flexible waterproofing, and have good waterproofing effect. The used penetrating crystalline waterproof coating is non-toxic and harmless, green and environmentally friendly, and the self-adhesive waterproof membrane does not require hot-melt connection. There is no dust and pollution during the construction process, and the environmental benefits are obvious. The construction sequence is optimized. The penetrating crystalline waterproof coating in the lining wall 11 area can be applied after the construction of the lining wall 11 is completed, which does not affect the structural construction of the lining wall 11. The penetrating crystalline waterproof coating is quick to construct, saves the basement structure construction period, reduces the foundation pit risk, and has good social benefits.

[0044] The depth of the groove 7 chiseled at the intersection of the underground continuous wall 2 and the self-waterproof reinforced concrete foundation slab 1 is not less than 60 mm. In this embodiment, a 60 mm deep groove 7 is chiseled at the intersection of the underground continuous wall 2 and the self-waterproof reinforced concrete foundation slab 1. In other embodiments, the groove 7 is chiseled at a depth of not less than 60 mm to ensure maximum waterproofing effect and meet waterproofing requirements and service life.

[0045] The foundation slab waterproof membrane 6 is pre-laid and fixed with reverse glue, and the foundation slab waterproof protective layer 22 is poured on the top of the foundation slab waterproof membrane 6. The self-waterproof reinforced concrete foundation slab 1 is poured on the top of the foundation slab waterproof protective layer 22, which avoids the foundation slab waterproof membrane 6 from being damaged, thereby ensuring the good stability of the waterproof effect and a long service life.

[0046] The basement roof waterproofing membrane 20 is pre-laid and fixed with reverse glue, and the basement roof waterproofing protective layer 23 is poured on the top of the basement roof waterproofing membrane 20, which avoids the basement roof waterproofing membrane 20 from being damaged, thereby ensuring the stability of the waterproofing effect and a long service life.

[0047] A polystyrene board 24 is fixedly installed at the junction of the outer side of the basement top plate 4 and the soil. The polystyrene board 24 is located on the outside of the top plate beam 18. The polystyrene board 24 protects the junction of the outer side of the basement top plate 4 and the soil, ensuring good waterproof effect.

[0048] A grouting pipe 25 is pre-buried when the steel bars of the self-waterproof reinforced concrete foundation slab 1 are tied. The diameter of the grouting pipe 25 is 10-12 mm. Grouting is used for connection to ensure good connectivity between the underground continuous wall 2 and the self-waterproof reinforced concrete foundation slab 1.

[0049] Steel plate waterstops 26 are provided between the lining wall 11 and the lining wall guide wall 8, the structural floor 3 and the top plate beam 18, respectively, which can cooperate with the penetrating crystalline waterproof coating layer to achieve better waterproof effect.

[0050] The thickness of the building block 14 is not less than 100 mm, which has a good protective effect and ensures strong structural stability. In this embodiment, the building block 14 is made of autoclaved aerated concrete and has a thickness of 100 mm.

[0051] In this embodiment, the self-waterproof reinforced concrete foundation slab 1 adopts P8 anti-seepage concrete.

[0052] In other embodiments, the self-waterproof reinforced concrete foundation slab 1 may be made of impermeable concrete of no less than P6.

[0053] In this embodiment, the foundation floor waterproofing membrane 6 and the basement roof waterproofing membrane 20 are self-adhesive polymer modified asphalt polyester-based waterproofing membranes with a thickness of 4 mm.

[0054] In this embodiment, the overlap length between the foundation bottom plate waterproofing membrane 6 and the foundation bottom plate penetrating crystalline waterproof coating layer 9 is not less than 500 mm, and the overlap length between the basement top plate waterproofing membrane 20 and the top plate penetrating crystalline waterproof coating layer 19 is not less than 500 mm, ensuring good waterproofing effect.

[0055] The construction method comprises the following steps:

[0056] Step 1: After the construction of the underground continuous wall 2 is completed, the part where the underground continuous wall 2 and the self-waterproof reinforced concrete foundation slab 1 cooperate is chiseled out, and the part where the underground continuous wall 2 and the self-waterproof reinforced concrete foundation slab 1 cooperate is sprayed with a foundation slab penetrating crystalline waterproof coating layer 9. The foundation slab penetrating crystalline waterproof coating layer 9 is continuous from the bottom of the self-waterproof reinforced concrete foundation slab 1 to the height of the inner lining wall guide wall 8;

[0057] Step 2: The bottom of the self-waterproof reinforced concrete foundation slab 1 is waterproofed by pre-laying the foundation slab waterproof membrane 6 with a reverse-adhesive construction technology. The foundation slab waterproof membrane 6 is overlapped on the top of the foundation slab permeable crystalline waterproof coating layer 9 and sealed with the foundation slab waterproof membrane sealing material 10 at the corners;

[0058] Step 3: After the concrete pouring of the self-waterproof reinforced concrete foundation slab 1 and the inner lining wall guide wall 8 is completed, a construction joint penetrating crystalline waterproof coating layer 12 is applied to the top surface of the inner lining wall guide wall 8 to close the bottom plate penetrating crystalline waterproof coating applied at the position of the self-waterproof reinforced concrete foundation slab 1;

[0059] Step 4: The lining wall 11 is constructed and a steel plate water stop 26 is set between the lining wall guide wall 8. After the lining wall 11 is constructed and the template is removed, the lining wall penetrating crystalline waterproof coating layer 13 is applied indoors to form a closure with the lower construction joint penetrating crystalline waterproof coating layer 12;

[0060] Step 5: When the lining wall 11 is constructed to the bottom of the structural floor 3 beam, a construction joint is left, a steel plate water stop 26 is set, and a construction joint penetration crystalline waterproof coating layer 16 is applied at the construction joint position to form a closed state with the lining wall penetration crystalline waterproof coating layer 13;

[0061] Step 6: Repeat step 5, that is, carry out waterproofing construction at the junction of each basement lining wall 11 and the structural floor 3 in sequence until the construction reaches the basement top slab 4;

[0062] Step 7: When the lining wall 11 is constructed to the bottom of the roof beam 18, a construction joint is left, a steel plate waterstop 26 is set, and a construction joint penetrating crystalline waterproof coating layer 17 is sprayed between the lining wall 11 and the roof beam 18 to form a closed connection with the lining wall penetrating crystalline waterproof coating layer 13. A roof penetrating crystalline waterproof coating layer 19 is sprayed on the top of the lining wall 11, the roof beam 18 and the outer surface of the basement roof 4;

[0063] Step 8. After the construction of the basement top plate 4 is completed, the top plate penetrable crystalline waterproof coating layer 19 extends and turns to the top of the basement top plate 4, and the basement top plate waterproof membrane 20 is laid on the top of the basement. The basement top plate waterproof membrane 20 is overlapped on the top of the top plate penetrable crystalline waterproof coating layer 19, and the basement top plate waterproof membrane 20 extends and turns to the top of the underground continuous wall 2 and is sealed with the basement top plate waterproof membrane sealing material 21.

[0064] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that a person skilled in the art can conceive within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention.

Claims

1. A two-wall-in-one deep basement waterproof joint, characterized by: It includes a self-waterproof reinforced concrete foundation slab, an underground continuous wall, a structural floor slab and a basement top slab. Reserved steel bars and connectors are provided in the underground continuous wall. The steel bars in the self-waterproof reinforced concrete foundation slab are connected to the reserved steel bars through the connector. The bottom of the self-waterproof reinforced concrete foundation slab is paved with a foundation slab waterproof membrane. A groove is chiseled at the part where the underground continuous wall and the self-waterproof reinforced concrete foundation slab cooperate. The top of the self-waterproof reinforced concrete foundation slab has an inner lining wall guide wall. The inner walls on three sides of the groove are respectively sprayed with a foundation slab penetrating crystalline waterproof coating layer. The bottom edge of the foundation slab penetrating crystalline waterproof coating layer is flush with the height of the foundation slab waterproof membrane. The foundation slab waterproofing membrane is raised at one end close to the underground continuous wall and placed on the foundation slab penetrating crystalline waterproof coating layer. A foundation slab waterproofing membrane sealing material is arranged between the end of the foundation slab waterproofing membrane and the vertical edge of the foundation slab penetrating crystalline waterproof coating layer. The top of the lining wall guide wall is fixedly constructed with an inner lining wall. The top of the inner lining wall guide wall is sprayed with a lower construction joint penetrating crystalline waterproof coating layer. The inner surface of the inner lining wall is sprayed with an inner lining wall penetrating crystalline waterproof coating layer and blocks are arranged on the inner side of the inner lining wall penetrating crystalline waterproof coating layer. A construction joint is left in the middle of the height of the inner lining wall and a structural floor is constructed in the construction joint. The underground continuous wall corresponding to the structural floor is sprayed with a structural The floor slab is penetrated by a crystalline waterproof coating layer, and a middle construction joint penetrating crystalline waterproof coating layer is sprayed between the upper and lower ends of the structural floor slab and the inner lining wall. The top of the inner lining wall is sprayed with an upper construction joint penetrating crystalline waterproof coating layer, and a top plate beam is constructed on the top of the upper construction joint penetrating crystalline waterproof coating layer. The top of the top plate beam is constructed on the top of the basement top plate, and the outer surfaces of the top plate beam and the basement top plate are sprayed with a top plate penetrating crystalline waterproof coating layer. The top plate penetrating crystalline waterproof coating layer extends to the top of the basement top plate, and the top of the underground continuous wall is lower than the top of the basement top plate. The top of the basement is also paved with a basement top plate waterproof membrane, and the basement top plate waterproof membrane is overlapped on the top plate penetrating crystalline waterproof coating. At the top of the material layer, the basement roof waterproofing membrane extends and turns to the top of the underground continuous wall and the basement roof waterproofing membrane sealing material is closed, the foundation bottom plate penetration crystalline waterproof coating layer, the lower construction joint penetration crystalline waterproof coating layer, the lining wall penetration crystalline waterproof coating layer, the middle construction joint penetration crystalline waterproof coating layer, the lining wall penetration crystalline waterproof coating layer, the upper construction joint penetration crystalline waterproof coating layer and the top plate penetration crystalline waterproof coating layer are continuously closed and connected, the depth of the groove chiseled at the intersection of the underground continuous wall and the self-waterproof reinforced concrete foundation bottom plate is not less than 60mm, and steel plate waterstops are provided between the lining wall and the lining wall guide wall, structural floor and top plate beam respectively.

2. The two-wall-in-one deep basement waterproof joint according to claim 1, characterized in that: The foundation slab waterproof membrane is pre-laid and fixed by back-bonding, a foundation slab waterproof protective layer is poured on top of the foundation slab waterproof membrane, and a self-waterproof reinforced concrete foundation slab is poured on top of the foundation slab waterproof protective layer.

3. The two-wall-in-one deep basement waterproof joint according to claim 2, characterized in that: The basement roof waterproofing membrane is pre-laid and fixed by back-bonding, and a basement roof waterproofing protective layer is poured on the top of the basement roof waterproofing membrane.

4. The two-wall-in-one deep basement waterproof joint according to claim 3, characterized in that: A polystyrene board is fixedly arranged at the junction of the outer side of the basement top plate and the soil, and the polystyrene board is located on the outer side of the top plate beam.

5. The two-wall-in-one deep basement waterproof joint according to claim 4, characterized in that: The self-waterproof reinforced concrete foundation bottom plate is pre-buried with a grouting pipe when the steel bars are tied, and the diameter of the grouting pipe is 10-12 mm.

6. The two-wall-in-one deep basement waterproof joint according to claim 5, characterized in that: The thickness of the building block is not less than 100 mm.

7. A construction method for a two-wall-in-one deep basement waterproof joint according to any one of claims 1 to 6, characterized in that: The following steps are included: Step 1: After the construction of the underground continuous wall is completed, the part where the underground continuous wall and the self-waterproof reinforced concrete foundation slab meet is chiseled out, and the part where the underground continuous wall and the self-waterproof reinforced concrete foundation slab meet is sprayed with a base slab penetrating crystalline waterproof coating layer. The base slab penetrating crystalline waterproof coating layer is continuous from the bottom of the self-waterproof reinforced concrete foundation slab to the height of the inner lining wall guide wall; Step 2: Waterproof the bottom of the self-waterproof reinforced concrete foundation slab using the pre-laid reverse-adhesive construction technology of the foundation slab waterproof membrane. The foundation slab waterproof membrane is overlapped on the top of the foundation slab permeable crystalline waterproof coating layer and sealed with the foundation slab waterproof membrane sealing material at the corners; Step 3: After the self-waterproof reinforced concrete foundation slab and the inner lining wall guide wall concrete are poured, a construction joint penetrating crystalline waterproof coating layer is applied to the top surface of the inner lining wall guide wall to close the base plate penetrating crystalline waterproof coating layer applied to the self-waterproof reinforced concrete foundation slab; Step 4: The inner lining wall is constructed and a steel plate water stop is set between the inner lining wall guide wall. After the inner lining wall construction is completed and the formwork is removed, a layer of penetrating crystalline waterproof coating is applied to the inner lining wall indoors to form a seal with the penetrating crystalline waterproof coating layer at the lower construction joint; Step 5: When the inner lining wall is constructed to the bottom of the structural floor beam, a construction joint is left, a steel plate water stop is installed, and a construction joint penetrating crystalline waterproof coating layer is applied at the construction joint position to form a closed layer with the inner lining wall penetrating crystalline waterproof coating layer; Step 6: Repeat step 5, that is, carry out waterproofing construction at the junction of each basement lining wall and structural floor slab in sequence until the construction reaches the basement top slab; Step 7: When the inner lining wall is constructed to the bottom of the roof beam, a construction joint is left, a steel plate waterstop is set, and a construction joint penetrating crystalline waterproof coating layer is sprayed between the inner lining wall and the roof beam to form a closed layer with the inner lining wall penetrating crystalline waterproof coating layer. A roof plate penetrating crystalline waterproof coating layer is sprayed on the outer surface of the inner lining wall, the roof beam and the basement roof; Step 8. After the construction of the basement top plate is completed, the top plate penetrating crystalline waterproof coating layer extends and turns to the top of the basement top plate, and the basement top plate waterproof membrane is laid on the top of the basement. The basement top plate waterproof membrane overlaps the top of the top plate penetrating crystalline waterproof coating layer, and the basement top plate waterproof membrane extends and turns to the top of the underground continuous wall and the basement top plate waterproof membrane sealing material is sealed.

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