A waterproof structure at a junction of a basement foundation slab and an outer wall and a construction method

Abstract

The application belongs to the field of building construction and is a waterproof structure and construction method for the joint of a basement foundation slab and an outer wall. A brick membrane is arranged on the edge of the foundation slab, SBS modified asphalt waterproof coiled material is laid on the edge of the foundation slab, HDPE pre-laid reverse-sticking waterproof coiled material is laid on the foundation slab, a concrete cushion layer is poured on the HDPE pre-laid reverse-sticking waterproof coiled material, the HDPE pre-laid reverse-sticking waterproof coiled material is continuously laid on the outer side of the outer wall by being bent, the HDPE pre-laid reverse-sticking waterproof coiled material is tightly attached to the outer side of the outer wall by a plurality of fastening assemblies, a first mortar protective layer and a high-viscosity asphalt anti-skid coating layer are arranged, the SBS modified asphalt waterproof coiled material is continuously laid on the high-viscosity asphalt anti-skid coating layer by being bent, and a second mortar protective layer is poured between the brick membrane and the outer wall. The vertical laying firmness and waterproof effect of the HDPE pre-laid reverse-sticking waterproof coiled material on the outer side of the outer wall are ensured, and the construction quality of the joint of the foundation slab and the outer wall with different waterproof materials is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building construction, in particular to a waterproof structure at the junction of a basement foundation slab and an outer wall and a construction method. BACKGROUND

[0002] Since entering the 21st century, the construction industry has been booming in China, and buildings generally have basements. In recent years, basement water leakage has become more and more common. Basement waterproofing has become a key to controlling the quality of underground engineering, and can also prevent complex maintenance during operation. Therefore, it is particularly important to ensure the normal use of buildings and avoid water leakage.

[0003] During the waterproofing construction of a basement, waterproofing construction is generally carried out before foundation construction. Currently, more and more high-molecular pre-paved reverse-stuck waterproofing membranes are used in construction sites. Among them, HDPE pre-paved reverse-stuck waterproofing membranes are favored in construction engineering because they truly eliminate the need for a waterproofing protection layer during construction, eliminating the need for a 5-10 cm concrete protection layer, allowing the basement foundation slab concrete to be directly bonded to the waterproofing layer, and eliminating water channeling.

[0004] However, during construction, the HDPE pre-paved reverse-stuck waterproofing membrane cannot be fixed vertically during the construction of the basement shear wall, affecting the waterproofing effect. Therefore, modified asphalt waterproofing membranes are still used for the outer walls of the basement. During structural waterproofing design, the HDPE pre-paved reverse-stuck waterproofing membrane used for the basement foundation slab and the high-adhesion anti-slip modified asphalt waterproofing coating and modified asphalt waterproofing membrane used for the outer walls of the basement must be properly treated at the junction of the basement outer wall to prevent water leakage during operation. SUMMARY

[0005] The present application aims to solve the above problems and provides a waterproof structure at the junction of a basement foundation slab and an outer wall and a construction method, ensuring the firmness and waterproofing effect of the vertical laying of the HDPE pre-paved reverse-stuck waterproofing membrane on the outer side of the outer wall. The HDPE pre-paved reverse-stuck waterproofing membrane is directly laid on the foundation slab, eliminating the need for a 5-10 cm concrete protection layer, saving construction costs, eliminating water channeling, ensuring the construction quality of the junction of the basement foundation slab and the outer wall with different waterproofing materials, and having a wide application prospect and high promotional value.

[0006] The present application solves the problem by adopting the following technical solution:

[0007] The utility model provides a waterproof structure at the junction of basement foundation bottom plate and outer wall, which is arranged on the foundation bottom plate and the outer wall, a brick membrane is arranged on the edge of the foundation bottom plate, an SBS modified asphalt waterproof roll is continuously laid on the edge of the foundation bottom plate, the SBS modified asphalt waterproof roll is continuously laid to the inner side of the brick membrane, an HDPE pre-laid reverse-sticking waterproof roll is fully laid on the foundation bottom plate, the HDPE pre-laid reverse-sticking waterproof roll covers the SBS modified asphalt waterproof roll and is continuously laid to the inner side of the brick membrane, a concrete cushion is poured on the HDPE pre-laid reverse-sticking waterproof roll, the height of the concrete cushion is lower than the height of the brick membrane, the outer wall is arranged on the concrete cushion and is spaced from the brick membrane, the HDPE pre-laid reverse-sticking waterproof roll is bent and continuously laid along the concrete cushion to the outer side of the outer wall, a plurality of fastening assemblies are arranged in the outer wall and are spaced from each other along the length direction of the outer wall, a reinforcing gasket is continuously and tightly covered at the joint between the HDPE pre-laid reverse-sticking waterproof roll and the outer side of the outer wall, the reinforcing gasket is fixed by the plurality of fastening assemblies so that the HDPE pre-laid reverse-sticking waterproof roll is tightly attached to the outer side of the outer wall, a first mortar protection layer is poured between the brick membrane and the outer wall, the end of the reinforcing gasket and each fastening assembly is embedded in the first mortar protection layer, a high-adhesion asphalt anti-skid coating layer is coated on the outer side of the outer wall and the first mortar protection layer, the SBS modified asphalt waterproof roll is bent and continuously laid on the high-adhesion asphalt anti-skid coating layer, and a second mortar protection layer is poured between the brick membrane and the outer wall.

[0008] Further, a rubber waterstop is arranged in the outer wall and extends along the outer wall, and the rubber waterstop is installed in the middle of the upper and lower tensioning screws in each fastening assembly.

[0009] Further, the SBS modified asphalt waterproofing membrane is provided with a right-angle fixing frame inserted in the brick membrane, the right-angle fixing frame is arranged along the gap between the brick membrane and the concrete cushion, and the second mortar protective layer is poured on the SBS modified asphalt waterproofing membrane and the right-angle fixing frame; the right-angle fixing frame comprises a right-angle plate body, the right-angle plate body is arranged at the right-angle corner between the brick membrane and the SBS modified asphalt waterproofing membrane, and a fixing plate body is connected to the corner of the right-angle plate body and inserted into the brick membrane; the right-angle plate body comprises a vertical part and a horizontal part, the horizontal part is arranged on the surface of the SBS modified asphalt waterproofing membrane, and the vertical part is arranged on the side of the brick membrane, and the height of the vertical part is consistent with the height of the second mortar protective layer.

[0010] Further, the SBS modified asphalt waterproofing membrane is provided with a right-angle fixing frame inserted in the brick membrane, the right-angle fixing frame is arranged along the gap between the brick membrane and the concrete cushion, and the second mortar protective layer is poured on the SBS modified asphalt waterproofing membrane and the right-angle fixing frame; the right-angle fixing frame comprises a right-angle plate body, the right-angle plate body is arranged at the right-angle corner between the brick membrane and the SBS modified asphalt waterproofing membrane, and a fixing plate body is connected to the corner of the right-angle plate body and inserted into the brick membrane; the right-angle plate body comprises a vertical part and a horizontal part, the horizontal part is arranged on the surface of the SBS modified asphalt waterproofing membrane, and the vertical part is arranged on the side of the brick membrane, and the height of the vertical part is consistent with the height of the second mortar protective layer.

[0011] Further, the SBS modified asphalt waterproofing membrane is provided with a right-angle fixing frame inserted in the brick membrane, the right-angle fixing frame is arranged along the gap between the brick membrane and the concrete cushion, and the second mortar protective layer is poured on the SBS modified asphalt waterproofing membrane and the right-angle fixing frame; the right-angle fixing frame comprises a right-angle plate body, the right-angle plate body is arranged at the right-angle corner between the brick membrane and the SBS modified asphalt waterproofing membrane, and a fixing plate body is connected to the corner of the right-angle plate body and inserted into the brick membrane; the right-angle plate body comprises a vertical part and a horizontal part, the horizontal part is arranged on the surface of the SBS modified asphalt waterproofing membrane, and the vertical part is arranged on the side of the brick membrane, and the height of the vertical part is consistent with the height of the second mortar protective layer.

[0012] Further, the outer wall comprises an upper construction section and a lower construction section, the lower construction section is poured on the concrete cushion, the upper construction section is poured on the lower construction section, a construction joint is arranged between the upper construction section and the lower construction section, a waterproof coating layer is coated on the top surface of the lower construction section at the construction joint, and a steel stop plate is embedded in the upper construction section and the lower construction section above the construction joint, and the steel stop plate is arranged along the construction joint.

[0013] Further, the SBS modified asphalt waterproofing membrane is provided with a right-angle fixing frame inserted in the brick membrane, the right-angle fixing frame is arranged along the gap between the brick membrane and the concrete cushion, and the second mortar protective layer is poured on the SBS modified asphalt waterproofing membrane and the right-angle fixing frame; the right-angle fixing frame comprises a right-angle plate body, the right-angle plate body is arranged at the right-angle corner between the brick membrane and the SBS modified asphalt waterproofing membrane, and a fixing plate body is connected to the corner of the right-angle plate body and inserted into the brick membrane; the right-angle plate body comprises a vertical part and a horizontal part, the horizontal part is arranged on the surface of the SBS modified asphalt waterproofing membrane, and the vertical part is arranged on the side of the brick membrane, and the height of the vertical part is consistent with the height of the second mortar protective layer.

[0014] Further, the steel cover plate comprises a first cover plate and a second cover plate which are structurally identical, the first cover plate and the second cover plate are both strip-shaped plate bodies and are fixedly connected with two connecting round rods at inner side surfaces, the first cover plate and the second cover plate are continuously laid and installed along the outer side surface of the outer wall, a first connecting portion extending outward is arranged at the left lower portion of the first cover plate, a second connecting portion extending outward is arranged at the right upper portion of the first cover plate, through holes are arranged on the two connecting portions, the second connecting portion of the first cover plate and the first connecting portion of the first cover plate are butted and a rubber sponge strip is clamped at the butt joint, and a fastening bolt is arranged through the rubber sponge strip to connect the first cover plate and the second cover plate together.

[0015] Further, the steel cover plate comprises a third cover plate and a fourth cover plate which are structurally identical, the third cover plate and the fourth cover plate are both strip-shaped plate bodies and are fixedly connected with two connecting round rods at inner side surfaces, the third cover plate and the fourth cover plate are connected with each other and connected with the first cover plate or the second cover plate which is continuously laid on the outer side surface of the outer wall, the third cover plate and the fourth cover plate are arranged at a right-angle corner of the outer wall in abutment, a first connecting portion extending outward is arranged at the left lower portion of the third cover plate, the first connecting portion on the third cover plate is connected with the second connecting portion on the second cover plate or the first connecting portion on the first cover plate, a second connecting portion extending outward is arranged at the right upper portion of the fourth cover plate, the second connecting portion on the fourth cover plate is connected with the second connecting portion on the second cover plate or the first connecting portion on the first cover plate, a plurality of connecting columns are arranged on the right side of the third cover plate in a height direction and spaced apart from each other in a vertical direction, a plurality of connecting holes are arranged on the left side of the fourth cover plate in the height direction and spaced apart from each other in the vertical direction, each connecting column is inserted into each connecting hole to connect the third cover plate and the fourth cover plate together in a vertical direction, a shaped waterstop abutting against the right-angle corner of the outer wall is arranged at the right-angle corner of the third cover plate and the fourth cover plate, and the connecting columns abut against the side surface of the fourth cover plate to fasten the third cover plate and the fourth cover plate together.

[0016] A construction method of a waterproof structure at a junction of a basement foundation slab and an outer wall, comprising the following steps:

[0017] S1, pouring the foundation slab at a construction site, and reserving a groove on the foundation slab;

[0018] S2, after the foundation slab is cured, building a brick membrane on the edge of the foundation slab, and pouring a first mortar reinforcing portion at a right-angle corner of the brick membrane and the foundation slab;

[0019] S3, after the first mortar reinforcing portion is cured and the brick membrane reaches a design strength, cleaning the inner side surface of the brick membrane and the surface of the first mortar reinforcing portion;

[0020] S4, continuously laying SBS modified asphalt waterproof roll on the outer side of the base plate from the inner side edge of the groove as the starting point, installing rubber plugs in the groove, covering the SBS modified asphalt waterproof roll on the inner side of the first mortar reinforced part and the brick membrane, and temporarily placing the remaining part of the SBS modified asphalt waterproof roll on the brick membrane;

[0021] S5, fully laying HDPE pre-laid reverse-sticking waterproof roll on the base plate, covering the HDPE pre-laid reverse-sticking waterproof roll on the SBS modified asphalt waterproof roll and extending to the inner side of the brick membrane, and temporarily placing the remaining part of the HDPE pre-laid reverse-sticking waterproof roll on the brick membrane;

[0022] S6, formwork is erected on the HDPE pre-laid reverse-sticking waterproof roll within the range of the base plate to pour the concrete cushion and the lower construction section of the outer wall, and the water stop steel plate and the several connecting round rods fixed on the water stop steel plate are pre-installed on the lower construction section when the lower construction section is constructed;

[0023] S7, when the concrete strength of the concrete cushion and the lower construction section reaches the design requirement, the formwork is removed, the upper and lower counter-pulling screws for fixing the formwork are reserved, the second mortar reinforced part is poured at the right angle between the lower construction section and the concrete cushion, and the concrete cushion and the second mortar reinforced part between the outer side of the lower construction section and the brick membrane are cleaned;

[0024] S8, the HDPE pre-laid reverse-sticking waterproof roll temporarily placed on the brick membrane is continuously laid on the outer side of the concrete cushion and the lower construction section below the lower counter-pulling screw, and the reinforcing gaskets and the abutting gaskets are installed on the upper and lower counter-pulling screws and fastened by nuts;

[0025] S9, the first mortar protection layer is poured on the HDPE pre-laid reverse-sticking waterproof roll between the brick membrane and the lower construction section, and the end parts of the reinforcing gaskets, the upper and lower counter-pulling screws are poured in the first mortar protection layer;

[0026] S10, the first mortar protection layer is cleaned, a high-viscosity asphalt anti-skid coating layer is coated on the first mortar protection layer and the outer side of the lower construction section, and then the SBS modified asphalt waterproof roll temporarily placed on the brick membrane is continuously laid on the outer side of the lower construction section;

[0027] S11, the right-angle fixing bracket is installed on the brick membrane, the bracket fixing bracket abuts on the SBS modified asphalt waterproof roll, and then the second mortar protection layer is poured on the SBS modified asphalt waterproof roll;

[0028] S12, the chiseling and brushing of the waterproof coating layer are performed on the top surface of the lower construction section, the steel cover plate is assembled and fixed on the several connecting round rods, the formwork is erected to pour the upper construction section, and the outer wall construction is completed.

[0029] Compared with the prior art, the application has the prominent features that:

[0030] The SBS modified asphalt waterproof coiled material is continuously laid on the brick mold membrane at the edge of the foundation base plate, then the HDPE pre-laid reverse-sticking waterproof coiled material is fully laid on the foundation base plate, and the HDPE pre-laid reverse-sticking waterproof coiled material is also continuously laid on the brick mold membrane, the concrete cushion and the outer wall are poured on the foundation base plate, then the HDPE pre-laid reverse-sticking waterproof coiled material is continuously laid on the outer side of the outer wall, the side edge of the HDPE pre-laid reverse-sticking waterproof coiled material is fixed through the fastening assembly, the side edge of the HDPE pre-laid reverse-sticking waterproof coiled material is tightly attached to the outer side of the outer wall, so that the vertical laying firmness and waterproof effect of the HDPE pre-laid reverse-sticking waterproof coiled material on the outer side of the outer wall are ensured, the direct laying of the HDPE pre-laid reverse-sticking waterproof coiled material on the foundation base plate eliminates the water channeling passage and saves the construction cost, the combination of the high-stickiness asphalt anti-skid coating layer and the SBS can greatly reduce the cost and the construction period, and the combination with the HDPE pre-laid reverse-sticking waterproof coiled material can greatly shorten the construction period and save the cost, the first mortar protective layer is poured on the HDPE pre-laid reverse-sticking waterproof coiled material between the brick mold membrane and the outer wall, the high-stickiness asphalt anti-skid coating layer is coated on the first mortar protective layer, the SBS modified asphalt waterproof coiled material is continuously laid on the outer side of the outer wall, the right-angle fixing frame is installed on the brick mold membrane, and the second mortar protective layer is poured between the brick mold membrane and the outer wall, so that the edge of the SBS modified asphalt waterproof coiled material is collected, the HDPE pre-laid reverse-sticking waterproof coiled material and the SBS modified asphalt waterproof coiled material are protected through the first mortar protective layer and the second mortar protective layer, and the corner of the SBS modified asphalt waterproof coiled material is protected and fixed through the right-angle fixing frame, the waterproof effect of the outer wall and the foundation base plate is ensured through the SBS modified asphalt waterproof coiled material and the HDPE pre-laid reverse-sticking waterproof coiled material, so that the waterproof effect of the basement of the building is ensured, compared with the traditional foundation base plate and side wall waterproof construction, the construction period, the cost and the quality are greatly improved, the construction quality of the joint of the foundation base plate and the outer wall of different waterproof materials is ensured, the application prospect is wide, and the application has high popularization value. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a schematic diagram of the main view structure of the embodiment of the application;

[0032] Figure 2 is a schematic diagram of the main view structure of the embodiment of the application; Figure 1

[0033] Figure 3 is a schematic diagram of the steel cover plate structure of the application Figure 1 ;

[0034] ​Figure 4 is a schematic diagram of a steel cover plate structure of the present application Figure 2 ;

[0035] In the figure: 1, base plate; 2, outer wall; 3, brick membrane; 4, SBS modified bitumen waterproof roll material; 5, HDPE pre-paved reverse-sticking waterproof roll material; 6, concrete cushion layer; 7, fastening assembly; 8, reinforcing gasket; 9, first mortar protective layer; 10, high-viscosity bitumen anti-skid coating layer; 11, second mortar protective layer; 12, upper tensioning screw rod; 13, lower tensioning screw rod; 14, abutting gasket; 15, nut; 16, rubber waterstop; 17, right-angle fixing frame; 18, groove; 19, rubber plug; 20, waterproof adhesive tape; 21, first mortar reinforcing part; 22, second mortar reinforcing part; 23, waterproof coating layer; 24, waterstop steel plate; 25, connecting round rod; 26, steel cover plate; 27, first cover plate; 28, second cover plate; 29, third cover plate; 30, fourth cover plate; 31, rubber sponge strip; 32, shaped waterstop; 33, fastening bolt. Embodiment

[0036] The public will understand the present application better through the following description of the embodiments, but the specific embodiments given by the applicant should not be considered as limiting the technical solutions of the present application, and any change in the definition of the components or technical features and / or formal but not substantial change in the overall structure should be considered as within the protection scope of the technical solutions of the present application.

[0037] Referring to Figures 1 to 4 , the technical solutions of the present application are as follows:

[0038] The utility model provides a waterproof structure of basement foundation bottom plate and outer wall junction, set up on foundation bottom plate 1 and outer wall 2, and the brick membrane 3 is built on the edge of foundation bottom plate 1, and the brick membrane 3 is built along the lengthways of foundation bottom plate 1 and the height and thickness of brick membrane 3 are determined according to the construction requirement, and the SBS modified asphalt waterproof roll 4 is continuously laid on the outside of the edge of foundation bottom plate 1, and the SBS modified asphalt waterproof roll 4 is continuously laid to the inside of brick membrane 3 near the center of foundation bottom plate 1, and the HDPE pre-laid reverse sticking waterproof roll 5 is fully laid on foundation bottom plate 1, and the HDPE pre-laid reverse sticking waterproof roll 5 covers SBS modified asphalt waterproof roll 4 and continuously lays to the inside of brick membrane 3, and the concrete cushion 6 is poured on the HDPE pre-laid reverse sticking waterproof roll 5, and the thickness of concrete cushion 6 is determined according to the construction requirement, and the height of concrete cushion 6 is lower than the height of brick membrane 3, and the outer wall 2 is poured on concrete cushion 6 and is spaced apart with brick membrane 3, and the spacing between outer wall 2 and brick membrane 3 is determined according to the construction requirement, and the HDPE pre-laid reverse sticking waterproof roll 5 is bent and continuously laid along concrete cushion 6 to the outside of outer wall 2, and the fastening assembly 7 is embedded in outer wall 2 and spaced apart with each other along the length direction of outer wall 2, and the number of fastening assembly 7 is determined according to the length of outer wall 2, and the spacing between adjacent fastening assembly 7 is 1 m, and the reinforcing gasket 8 is continuously and adhered covered in the joint between HDPE pre-laid reverse sticking waterproof roll 5 and the outside of outer wall 2, and the length of reinforcing gasket 8 is consistent with the length of outer wall 2, and the reinforcing gasket 8 is fixed by several fastening assembly 7 so that HDPE pre-laid reverse sticking waterproof roll 5 is closely adhered on the outside of outer wall 2, and then makes HDPE pre-laid reverse sticking waterproof roll 5 vertically adhere and be fixed on the outside of outer wall 2 to guarantee the waterproof effect outside outer wall 2, and the first mortar protection layer 9 is poured between brick membrane 3 and outer wall 2, and the thickness of first mortar protection layer 9 is 10 cm, and the end of reinforcing gasket 8 and each fastening assembly 7 is embedded in first mortar protection layer 9, and HDPE pre-laid reverse sticking waterproof roll 5 is protected through first mortar protection layer 9, and the joint of HDPE pre-laid reverse sticking waterproof roll 5 on outer wall 2 is also covered and protected, to avoid the failure of waterproof measure, and the high viscosity pitch anti-skid coating layer 10 is coated on the outside of first mortar protection layer 9 and outer wall 2, and the SBS modified asphalt waterproof roll 4 is continuously laid on high viscosity pitch anti-skid coating layer 10, and the second mortar protection layer 11 is poured between brick membrane 3 and outer wall 2, and the thickness of second mortar protection layer 11 is 15 cm, and the SBS modified asphalt waterproof roll 4 is protected through second mortar protection layer 11, to avoid the failure of waterproof effect caused by the damage of SBS modified asphalt waterproof roll 4, and the combination of high viscosity pitch anti-skid coating layer 10 and SBS can play the waterproof capacity and greatly reduce the cost and construction period, and the combination with HDPE pre-laid reverse sticking waterproof roll 5 can greatly shorten the construction period and save the cost.Each fastening assembly 7 comprises an upper and a lower tie rod 12, 13, which are fastening fittings for fixing the formwork when the outer wall 2 is being formed, and after the outer wall 2 has reached the required strength, the formwork is removed, leaving the upper and lower tie rods 12, 13, which are then reused. The upper and lower tie rods 12, 13 are embedded in the outer wall 2, with the ends of the upper and lower tie rods 12, 13 extending out of the outer wall 2. The reinforcing pad 8 is provided with a plurality of through holes, the number of which corresponds to the number of the upper and lower tie rods 12, 13 in the plurality of fastening assemblies 7. The reinforcing pad 8 is sleeved onto the ends of the upper and lower tie rods 12, 13 and abuts against the joint between the HDPE pre-paved reverse-stuck waterproof roll 5 and the outer side of the outer wall 2. The other side of the outer wall 2 is provided with an abutting pad 14 which has the same structure as the reinforcing pad 8. The abutting pad 14 is sleeved onto the other ends of the upper and lower tie rods 12, 13. Nuts 15 are threadedly connected to the two ends of the upper tie rod 12 and the two ends of the lower tie rod 13. The reinforcing pad 8 and the HDPE pre-paved reverse-stuck waterproof roll 5 and the abutting pad 14 are fastened to the side of the outer wall 2 by the nuts 15.

[0039] A rubber waterstop 16 is also provided in the outer wall 2 and is arranged along the length of the outer wall 2. The rubber waterstop 16 is installed in the middle of the upper and lower tie rods 12, 13 in each fastening assembly 7. The rubber waterstop 16 is installed on the upper and lower tie rods 12, 13 to strengthen the waterproof effect at the connection between the upper and lower tie rods 12, 13 and the outer wall 2, thereby preventing water from seeping into the inner side of the outer wall 2 along the upper and lower tie rods 12, 13.

[0040] A right-angle fixing bracket 17 is abutted against the bent corner of the SBS modified bitumen waterproof roll 4 and is inserted into the brick membrane 3. The right-angle fixing bracket 17 is arranged along the gap between the brick membrane 3 and the concrete cushion 6. The second mortar protective layer 11 is poured on the SBS modified bitumen waterproof roll 4 and the right-angle fixing bracket 17. The right-angle fixing bracket 17 comprises a right-angle plate body which is an angle steel. The right-angle plate body is abutted against the right-angle corner between the brick membrane 3 and the SBS modified bitumen waterproof roll 4. An inclined fixing plate body is welded on the corner of the right-angle plate body and is inserted into the brick membrane 3. The fixing plate body is a steel plate. The right-angle plate body comprises a vertical part and a horizontal part. The horizontal part is abutted against the surface of the SBS modified bitumen waterproof roll 4. The vertical part is abutted against the side of the brick membrane 3. The height of the vertical part is consistent with the height of the second mortar protective layer 11. The right-angle fixing bracket 17 protects the bent corner of the SBS modified bitumen waterproof roll 4 and prevents it from warping. The right-angle fixing bracket 17 is poured in the second horizontal mortar layer, which covers the right-angle fixing bracket 17 and prevents the right-angle fixing bracket 17 from damaging the SBS modified bitumen waterproof roll 4.

[0041] A concave groove 18 is provided on the foundation base plate 1 on the inner side of the brick membrane 3. The groove 18 is pre-formed when the foundation base plate 1 is poured. When the strength of the foundation base plate 1 reaches the design requirements, the formwork can be removed. The groove 18 is arranged along the longitudinal length of the foundation base plate 1. The SBS modified asphalt waterproof membrane 4 is fully spread in the groove 18. The groove 18 is filled with a rubber plug 19. The cross section of the rubber plug 19 is a T-shaped structure including a rectangular body filled in the groove 18. A horizontal cross section is provided on the top surface of the rectangular body. The rectangular body abuts against the surface of the SBS modified asphalt waterproof membrane 4 in the groove 18. The width of the horizontal cross section is greater than the width of the groove 18. The bottom surface of the left side of the horizontal cross section abuts against the surface of the SBS modified asphalt waterproof membrane 4. A water-swellable waterproof rubber strip 20 is sandwiched between the bottom surface of the right side of the horizontal cross section and the foundation slab 1. The above-mentioned rubber plug 19 is used to press the side edge of the SBS modified asphalt waterproof membrane 4 to prevent the SBS modified asphalt waterproof membrane 4 from warping at the end, so as to ensure the waterproof effect of the foundation slab 1. At the same time, the waterproof effect between the rubber plug 19 and the SBS modified asphalt waterproof membrane 4 is enhanced by setting the water-swellable waterproof rubber strip 20.

[0042] A first mortar reinforcement part 21 is provided at the right angle between the brick membrane 3 and the foundation bottom plate 1. The first mortar reinforcement part 21 is cast with cement mortar. The side of the first mortar reinforcement part 21 away from the right angle between the brick membrane 3 and the foundation bottom plate 1 is an inferior arc surface, and the SBS modified asphalt waterproof membrane 4 is laid on the inferior arc surface; a second mortar reinforcement part 22 is provided at the right angle between the concrete base and the exterior wall 2. The first mortar reinforcement part 21 is cast with cement mortar, and the second The side of the mortar reinforcement part 22 away from the right angle between the exterior wall 2 and the concrete base is a poor arc surface, and the HDPE pre-laid reverse-adhesive waterproof membrane 5 is laid on the poor arc surface; through the first mortar reinforcement part 21 and the second mortar reinforcement part 22, the SBS modified asphalt waterproof membrane 4 and the HDPE pre-laid reverse-adhesive waterproof membrane 5 can be smoothly bent and extended, avoiding the occurrence of bending dead angles that cause the SBS modified asphalt waterproof membrane 4 and the HDPE pre-laid reverse-adhesive waterproof membrane 5 to crack and lose the waterproof effect.

[0043] The exterior wall 2 includes an upper construction section and a lower construction section, both of which are cast in concrete. The lower construction section is cast on a concrete cushion layer 6, and the upper construction section is cast on the lower construction section. A construction joint is provided between the upper construction section and the lower construction section. A waterproof coating layer 23 is coated on the construction joint and the top surface of the lower construction section. A water-stop steel plate 24 is buried on the construction joint, in the upper construction section and in the lower construction section. The water-stop steel plate 24 is arranged along the entire length of the construction joint. The waterproof effect of the construction joint of the exterior wall 2 is enhanced by the above-mentioned waterproof coating layer 23 and the water-stop steel plate 24.

[0044] The connecting round bars 25 are welded to the upper and lower parts of the outer side of the water stop steel plate 24, and the two connecting round bars 25 are arranged along the length of the water stop steel plate 24 and are spaced apart, and the several connecting round bars are round steel, and the steel cover plates 26 are connected to the other ends of the several connecting round bars 25 and are attached to the outer side of the construction joint, the upper construction section and the lower construction section, and the steel cover plates 26 are arranged along the length of the outer wall 2; the waterproof effect of the construction joint is enhanced by the steel cover plates 26, and the steel cover plates 26 are connected to the water stop steel plate 24 through the several connecting round bars 25.

[0045] The steel cover plates 26 include first cover plates 27 and second cover plates 28 which have the same structure, and the first cover plates 27 and the second cover plates 28 are steel plates, and the first cover plates 27 and the second cover plates 28 are strip-shaped plate bodies and are welded to the inner side and the two connecting round bars 25, and the first cover plates 27 and the second cover plates 28 are continuously laid and installed along the outer side of the outer wall 2, and the first connecting part extending outward is arranged at the lower part of the left side of the first cover plate 27, and the second connecting part extending outward is arranged at the upper part of the right side of the first cover plate 27, and the mounting holes penetrating through the two connecting parts are arranged, and the second connecting part of the first cover plate 27 and the first connecting part of the first cover plate 27 are butted and the rubber sponge strips 31 are clamped at the butt joint, and the fastening bolts 33 connecting the first cover plate 27 and the second cover plate 28 together through the rubber sponge strips 31 are arranged at the second connecting part of the first cover plate 27 and the first connecting part of the first cover plate 27; the above structure enables the steel cover plates 26 to be constructed and installed in sections, and the construction efficiency is improved.

[0046] The steel cover plate 26 comprises a third cover plate 29 and a fourth cover plate 30 which are structurally identical, are both steel plates, are both strip-shaped plate bodies with inner sides and two connecting circular rods 25 welded, are connected to each other and connected to the first cover plate 27 or the second cover plate 28 continuously laid on the outer side of the outer wall 2, are arranged in abutment at the right-angle corner of the outer wall 2, are provided with a first connecting part extending outward at the lower left side of the third cover plate 29, and the first connecting part on the third cover plate 29 is connected to the second connecting part on the second cover plate 28 or the first connecting part on the first cover plate 27; are provided with a second connecting part extending outward at the upper right side of the fourth cover plate 30, and the second connecting part on the fourth cover plate 30 is connected to the second connecting part on the second cover plate 28 or the first connecting part on the first cover plate 27; are provided with a plurality of connecting columns arranged in abutment on the right side of the third cover plate 29 in the height direction; are provided with a plurality of connecting holes arranged in abutment on the left side of the fourth cover plate 30 in the height direction, each connecting column is inserted into each connecting hole to vertically connect the third cover plate 29 and the fourth cover plate 30 together, a shaped waterstop 32 is arranged at the right-angle corner of the third cover plate 29 and the fourth cover plate 30 to abut on the right-angle corner of the outer wall 2, and the connecting columns abut on the side surface of the fourth cover plate 30 to tightly connect the third cover plate 29 and the fourth cover plate 30 together; the third cover plate 29 and the fourth cover plate 30 are used to realize the installation at the construction joint of the corner of the outer wall 2, ensure the waterproof effect, and realize the continuous connection with the first cover plate 27 or the second cover plate 28 to ensure the integrity of the steel cover plate 26.

[0047] A construction method of a waterproof structure at the junction of a basement foundation slab 1 and an outer wall 2, comprising the following steps:

[0048] S1, pouring the foundation slab 1 at the construction site, reserving the groove 18 on the foundation slab 1, and supporting the formwork at the planned groove 18 when pouring the foundation slab 1; and after the strength of the foundation slab 1 reaches the design requirement, removing the formwork to complete the construction of the groove 18, and the width of the groove 18 is determined according to the construction requirement;

[0049] S2, after the curing of the foundation slab 1 is completed, the brick membrane 3 is built on the edge of the foundation slab 1, and the first mortar reinforcing part 21 is poured at the right-angle corner between the brick membrane 3 and the foundation slab 1 to seal the gap at the right-angle corner, so that the SBS modified asphalt waterproof roll 4 can be smoothly and bendingly laid, thereby avoiding the bending corner of the SBS modified asphalt waterproof roll 4 as a dead angle to cause the SBS modified asphalt waterproof roll 4 to crack and break, and ensuring the waterproof effect;

[0050] S3, after the curing of the first mortar reinforcing part 21 and the brick membrane 3 reaches the designed strength, clean the inner side of the brick membrane 3 and the surface of the first mortar reinforcing part 21;

[0051] S4, continuously lay the SBS modified asphalt waterproofing membrane 4 from the inner side edge of the groove 18 to the outer side of the base plate 1, install the rubber plug 19 in the groove 18, and the SBS modified asphalt waterproofing membrane 4 covers the inner side of the first mortar reinforcing part 21 and the brick membrane 3, and the remaining part of the SBS modified asphalt waterproofing membrane 4 is temporarily placed on the brick membrane 3;

[0052] S5, fully lay the HDPE pre-laid reverse-sticking waterproofing membrane 5 on the base plate 1, and the HDPE pre-laid reverse-sticking waterproofing membrane 5 covers the SBS modified asphalt waterproofing membrane 4 and extends to the inner side of the brick membrane 3, and the remaining part of the HDPE pre-laid reverse-sticking waterproofing membrane 5 is temporarily placed on the brick membrane 3;

[0053] S6, within the scope of the base plate 1, the HDPE pre-laid reverse-sticking waterproofing membrane 5 is used to support the formwork and pour the concrete cushion 6 and the lower construction section of the outer wall 2, and the water-stop steel plate 24 and the connecting round rods 25 fixed on the water-stop steel plate 24 are pre-installed on the lower construction section during the construction;

[0054] S7, after the concrete strength of the concrete cushion 6 and the lower construction section reaches the design requirement, the formwork is removed, and the upper and lower opposite-pulling screw rods 12 and 13 are reserved during the formwork support, thereby providing a basis for the subsequent fixing of the reinforcing gaskets 8, the second mortar reinforcing part 22 is poured at the right angle between the lower construction section and the concrete cushion 6, and the outer side of the lower construction section, the concrete cushion 6 between the lower construction section and the brick membrane 3, and the second mortar reinforcing part 22 are cleaned;

[0055] S8, the HDPE pre-laid reverse-sticking waterproofing membrane 5 temporarily placed on the brick membrane 3 is continuously laid on the outer side of the concrete cushion 6 and the lower construction section, below the lower opposite-pulling screw rod 13, the reinforcing gaskets 8 and the abutting gaskets 14 are installed on the upper and lower opposite-pulling screw rods 12 and 13 and fastened by the nuts 15;

[0056] S9, the first mortar protection layer 9 is poured on the HDPE pre-laid reverse-sticking waterproofing membrane 5 between the brick membrane 3 and the lower construction section, and the ends of the reinforcing gaskets 8, the upper and lower opposite-pulling screw rods 12 and 13 are poured in the first mortar protection layer 9;

[0057] S10, the first mortar protection layer 9 is cleaned, the high-viscosity asphalt anti-skid coating layer 10 is coated on the first mortar protection layer 9 and the outer side of the lower construction section, and then the SBS modified asphalt waterproofing membrane 4 temporarily placed on the brick membrane 3 is continuously laid on the outer side of the lower construction section;

[0058] S11, install the right-angle fixing frame 17 on the brick membrane 3, the support fixing frame abuts on the SBS modified asphalt waterproof coiled material 4, then the SBS modified asphalt waterproof coiled material 4 is continuously laid on the brick membrane 3, and the second mortar protection layer 11 is poured on the SBS modified asphalt waterproof coiled material 4;

[0059] S12, the top surface of the lower construction section is chiseled and brushed with a waterproof paint layer 23, then the steel cover plate 26 is assembled and fixed on the several connecting round rods 25, the upper construction section is poured and supported, and the outer wall 2 construction is completed.

[0060] The application continuously lays the SBS modified asphalt waterproof coiled material 4 on the edge of the foundation base plate 1 to the brick membrane 3, then fully lays the HDPE pre-laid reverse-sticking waterproof coiled material 5 on the foundation base plate 1, the HDPE pre-laid reverse-sticking waterproof coiled material 5 is also continuously laid on the brick membrane 3, the concrete cushion layer 6 and the outer wall 2 are poured on the foundation base plate 1, then the HDPE pre-laid reverse-sticking waterproof coiled material 5 is continuously laid on the outer side of the outer wall 2, the side edge of the HDPE pre-laid reverse-sticking waterproof coiled material 5 is fixed through the fastening assembly 7, the side edge of the HDPE pre-laid reverse-sticking waterproof coiled material 5 is tightly attached to the outer side of the outer wall 2, so as to ensure the vertical laying firmness and waterproof effect of the HDPE pre-laid reverse-sticking waterproof coiled material 5 on the outer side of the outer wall 2, the HDPE pre-laid reverse-sticking waterproof coiled material 5 is directly laid on the foundation base plate 1, and the 5-10cm concrete protection layer is eliminated, which not only saves the construction cost but also eliminates the water channeling, the high-stickiness asphalt anti-skid paint layer 10 and the SBS combination can play the waterproof capacity and greatly reduce the cost and construction period, the combination with the HDPE pre-laid reverse-sticking waterproof coiled material 5 can greatly shorten the construction period and save the cost, the first mortar protection layer 9 is poured on the HDPE pre-laid reverse-sticking waterproof coiled material 5 between the brick membrane 3 and the outer wall 2, the high-stickiness asphalt anti-skid paint layer 10 is coated on the first mortar protection layer 9, and the SBS modified asphalt waterproof coiled material 4 is continuously laid on the outer side of the outer wall 2, the right-angle fixing frame 17 is installed on the brick membrane 3, and the second mortar protection layer 11 is poured between the brick membrane 3 and the outer wall 2, so as to realize the edge closing of the SBS modified asphalt waterproof coiled material 4, the protection of the HDPE pre-laid reverse-sticking waterproof coiled material 5 and the SBS modified asphalt waterproof coiled material 4 is realized through the first mortar protection layer 9 and the second mortar protection layer 11, and the protection and fixation of the SBS modified asphalt waterproof coiled material 4 corner are realized through the right-angle fixing frame 17, the waterproof effect of the outer wall 2 and the foundation base plate 1 is ensured through the SBS modified asphalt waterproof coiled material 4 and the HDPE pre-laid reverse-sticking waterproof coiled material 5, so as to guarantee the waterproof effect of the basement of the building, compared with the traditional foundation base plate 1 and the side wall waterproof construction, the construction period, cost and quality are greatly improved, the construction quality of the joint of the different waterproof materials of the foundation base plate 1 and the outer wall 2 is guaranteed, the application prospect is wide, and the application has high popularization value.

[0061] The above merely describes the preferred embodiments of the present application, but is not intended to limit the scope of the present application. Any equivalent changes made according to the present application description and drawings should be included in the scope of the present application.

Claims

1. A waterproof structure at the junction of a basement foundation slab and an outer wall, provided on the foundation slab and the outer wall, characterized in that: A brick membrane is set on the edge of the foundation slab, and an SBS modified asphalt waterproof membrane is continuously laid outward on the edge of the foundation slab. The SBS modified asphalt waterproof membrane is continuously laid to the inner side of the brick membrane. The foundation slab is fully paved with HDPE pre-laid anti-adhesive waterproof membrane. The HDPE pre-laid anti-adhesive waterproof membrane covers the SBS modified asphalt waterproof membrane and is continuously laid to the inner side of the brick membrane. A concrete cushion is poured on the HDPE pre-laid anti-adhesive waterproof membrane. The height of the concrete cushion is lower than the height of the brick membrane. The exterior wall is set on the concrete cushion and is spaced apart from the brick membrane. The HDPE pre-laid anti-adhesive waterproof membrane is placed on the exterior wall. The reverse-adhesive waterproofing membrane is bent and laid continuously along the concrete cushion layer to the outer side of the exterior wall. Several fastening components are arranged in the exterior wall, spaced apart from each other along the length direction of the exterior wall. The joints between the HDPE pre-laid reverse-adhesive waterproofing membrane and the outer side of the exterior wall are covered with reinforcing gaskets throughout the length. Several fastening components jointly fix the reinforcing gaskets so that the HDPE pre-laid reverse-adhesive waterproofing membrane is tightly attached to the outer side of the exterior wall. A first mortar protective layer is poured between the brick membrane and the exterior wall. The reinforcing gaskets and the ends of each fastening component are buried in the first mortar protective layer. The first mortar protective layer and the outer side of the exterior wall are coated together. Covered with a high-viscosity asphalt anti-skid coating layer, the SBS modified asphalt waterproof membrane is bent and continuously laid on the high-viscosity asphalt anti-skid coating layer, and a second mortar protective layer is poured between the brick membrane and the exterior wall; each fastening component includes an upper tie screw and a lower tie screw, both of which are buried in the exterior wall, and the ends of the upper tie screw and the lower tie screw extend out of the exterior wall, and a number of through holes are provided on the reinforcing gasket, the number of which is consistent with the number of the upper tie screw and the lower tie screw in the several fastening components, and the reinforcing gasket is inserted into the ends of the upper tie screw and the lower tie screw and abuts against the HDP At the joint between the E pre-laid reverse-adhesive waterproofing membrane and the outer side of the exterior wall, an abutment gasket with the same structure as the reinforcement gasket is provided on the other side of the exterior wall. The abutment gasket is inserted into the other end of the upper and lower tension screws. Nuts are threadedly connected to both ends of the upper and lower tension screws. The reinforcement gasket, HDPE pre-laid reverse-adhesive waterproofing membrane, and the abutment gasket are fastened to the side of the exterior wall through the nuts. A rubber waterstop strip is also provided in the exterior wall along the entire length of the exterior wall. The rubber waterstop strip is installed in the middle of the upper and lower tension screws in each fastening assembly.A right-angle fixing bracket inserted into the brick membrane is abutted against the bent corner of the SBS modified asphalt waterproofing membrane. The bracket runs the entire length of the gap between the brick membrane and the concrete cushion. A second protective mortar layer is cast over the SBS modified asphalt waterproofing membrane and the bracket. The bracket includes a right-angle plate, which abuts the right-angle angle between the brick membrane and the SBS modified asphalt waterproofing membrane. A fixing plate inserted into the brick membrane is obliquely connected to the corner of the right-angle plate. The right-angle plate includes a vertical portion and a horizontal portion. The horizontal portion abuts the surface of the SBS modified asphalt waterproofing membrane, while the vertical portion abuts the side of the brick membrane. The height of the vertical portion matches the height of the second protective mortar layer.

2. The waterproof structure at the junction of the basement foundation slab and the exterior wall according to claim 1, characterized in that: A concave groove is provided on the foundation base plate on the inner side of the brick membrane. The groove is provided along the longitudinal length of the foundation base plate. The SBS modified asphalt waterproof membrane is fully spread in the groove. The groove is filled with a rubber plug. The cross-section of the rubber plug is a T-shaped structure, including a rectangular body filled in the groove. A horizontal cross-section is provided on the top surface of the rectangular body. The rectangular body abuts the surface of the SBS modified asphalt waterproof membrane in the groove. The width of the horizontal cross-section is greater than the width of the groove. The bottom surface of the left side of the horizontal cross-section abuts the surface of the SBS modified asphalt waterproof membrane. A waterproof strip is sandwiched between the bottom surface of the right side of the horizontal cross-section and the foundation base plate.

3. The waterproof structure at the junction of the basement foundation slab and the exterior wall according to claim 1 is characterized by: A first mortar reinforcement portion is provided throughout the length of the right-angled angle between the brick membrane and the foundation slab, and the side of the first mortar reinforcement portion away from the right-angled angle between the brick membrane and the foundation slab is an inferior arc surface, and the SBS modified asphalt waterproof membrane is laid on the inferior arc surface; a second mortar reinforcement portion is provided throughout the length of the right-angled angle between the concrete base and the exterior wall, and the side of the second mortar reinforcement portion away from the right-angled angle between the exterior wall and the concrete base is an inferior arc surface, and the HDPE pre-laid anti-adhesive waterproof membrane is laid on the inferior arc surface.

4. The waterproof structure at the junction of the basement foundation slab and the exterior wall according to claim 1, characterized in that: The exterior wall includes an upper construction section and a lower construction section. The lower construction section is cast on a concrete cushion layer, and the upper construction section is cast on the lower construction section. A construction joint is provided between the upper and lower construction sections. A waterproof coating layer is coated on the construction joint and on the top surface of the lower construction section. Waterstop steel plates are buried on the construction joint, in the upper and lower construction sections, and the waterstop steel plates are provided along the entire length of the construction joint.

5. The waterproof structure at the junction of the basement foundation slab and the exterior wall according to claim 4, characterized in that: Connecting round rods are provided on the upper and lower parts of the side of the water-stop steel plate facing the outside. The two connecting round rods are all the way along the direction of the water-stop steel plate and several of them are arranged at intervals. The other ends of the several connecting round rods are commonly connected to steel cover plates that are attached to the outer surfaces of the construction joints, the upper construction section and the lower construction section. The steel cover plates are set along the direction of the outer wall.

6. The waterproof structure at the junction of the basement foundation slab and the exterior wall according to claim 5, characterized in that: The steel cover plate includes a first cover plate and a second cover plate of the same structure. The first cover plate and the second cover plate are both strip-shaped plates and the inner sides are fixedly connected to two connecting round rods. The first cover plate and the second cover plate are continuously laid and installed along the outer side of the outer wall. A first connecting portion extending outward is provided at the lower left part of the first cover plate, and a second connecting portion extending outward is provided at the upper right part of the first cover plate. Through mounting holes are provided on both connecting portions. The second connecting portion of the first cover plate and the first connecting portion of the first cover plate are butted against each other and a rubber sponge strip is clamped at the butt joint. Fastening bolts are provided on the second connecting portion of the first cover plate and the first connecting portion of the first cover plate, which pass through the rubber sponge strip to connect the first cover plate and the second cover plate together.

7. The waterproof structure at the junction of the basement foundation slab and the exterior wall according to claim 6, characterized in that: The steel cover plate includes a third cover plate and a fourth cover plate of the same structure. The third cover plate and the fourth cover plate are both strip-shaped plates and the inner side surfaces are fixedly connected to two connecting round rods. The third cover plate and the fourth cover plate are connected to each other and to the first cover plate or the second cover plate continuously laid on the outer side surface of the exterior wall. The third cover plate and the fourth cover plate are fitted at the right-angled corner of the exterior wall. A first connecting portion extending outward is provided at the lower left side of the third cover plate. The first connecting portion on the third cover plate is connected to the second connecting portion on the second cover plate or the first connecting portion on the first cover plate. A second connecting portion extending outward is provided at the upper right side of the fourth cover plate. The connecting part, the second connecting part on the fourth cover plate is connected to the second connecting part on the second cover plate or the first connecting part on the first cover plate, and a plurality of connecting columns are arranged at intervals up and down along the height direction on the right side of the third cover plate, and a plurality of connecting holes are arranged at intervals up and down along the height direction on the left side of the fourth cover plate. Each connecting column is correspondingly inserted into each connecting hole to vertically connect the third cover plate and the fourth cover plate together, and a shaped water stop strip is provided at the right angle between the third cover plate and the fourth cover plate, which abuts on the right angle corner of the outer wall, and the connecting column abuts on the side of the fourth cover plate to fasten the third cover plate and the fourth cover plate together.

8. A method for constructing a waterproof structure at the junction of a basement foundation slab and an exterior wall according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1. Cast the foundation slab at the construction location and reserve a groove on the foundation slab; S2, after the foundation slab is cured, a brick membrane is laid on the edge of the foundation slab, and a first mortar reinforcement portion is poured at a right angle between the brick membrane and the foundation slab; S3. After the curing of the first mortar reinforcement portion is completed and the brick membrane reaches the designed strength, the inner side of the brick membrane and the surface of the first mortar reinforcement portion are cleaned; S4. Continuously lay the SBS modified asphalt waterproof membrane starting from the inner edge of the trench toward the outer side of the foundation slab, install a rubber plug in the trench, and cover the first mortar reinforcement portion and the inner side of the brick membrane with the SBS modified asphalt waterproof membrane. The remaining portion of the SBS modified asphalt waterproof membrane is temporarily placed on the brick membrane. S5. Fully lay the HDPE pre-laid anti-adhesive waterproof membrane on the foundation slab. The HDPE pre-laid anti-adhesive waterproof membrane covers the SBS modified asphalt waterproof membrane and extends to the inner side of the brick membrane. The rest of the HDPE pre-laid anti-adhesive waterproof membrane is temporarily placed on the brick membrane. S6. Within the scope of the foundation slab, formwork is supported and cast on the HDPE pre-laid reverse-adhesive waterproof membrane to form the concrete cushion layer and the lower construction section of the exterior wall. During the construction of the lower construction section, the waterstop steel plate and several connecting round rods fixed to the waterstop steel plate are pre-installed on the lower construction section; S7. When the concrete strength of the concrete cushion and the lower construction section reaches the design requirements, the formwork is removed. When removing the formwork, the upper and lower tension screws used to fix the formwork during the support are reserved. A second mortar reinforcement portion is poured at a right angle between the lower construction section and the concrete cushion, and the outer side surface of the lower construction section, the concrete cushion between the lower construction section and the brick membrane, and the second mortar reinforcement portion are cleaned. S8. Continuously lay the HDPE pre-laid reverse-adhesive waterproof membrane temporarily placed on the brick membrane on the outer surface of the concrete cushion and the lower construction section and below the lower tension screws. Install the reinforcement gasket and the abutment gasket on the upper tension screws and the lower tension screws and tighten them with nuts. S9. Pour a first mortar protective layer on the HDPE pre-laid reverse-adhesive waterproof membrane between the brick membrane and the lower construction section. The ends of the reinforcement gasket, the upper tension screw, and the lower tension screw are all poured in the first mortar protective layer. S10, clean the first mortar protective layer, apply a high-viscosity asphalt anti-skid coating layer on the first mortar protective layer and the outer surface of the lower construction section, and then continuously lay the SBS modified asphalt waterproof membrane temporarily placed on the brick membrane to the outer surface of the lower construction section; S11. Install a right-angle fixing bracket on the brick membrane, place the bracket fixing bracket against the SBS modified asphalt waterproof membrane, and then pour a second mortar protective layer on the SBS modified asphalt waterproof membrane; S12. Roughen the top surface of the lower construction section and apply a layer of waterproof coating. Then assemble and fix the steel cover plate on several connecting round rods, support the formwork and cast the upper construction section to complete the exterior wall construction.

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