Treatment method for basement bottom plate construction joint leakage
By setting waterproof holes and grouting holes at the basement floor construction joints, waterproof materials and concrete are injected, and the concrete layer is covered, the leakage problem of basement floor construction joints is solved, achieving convenient and economical waterproofing effect and construction reinforcement , avoiding the potential risk of water leakage in the basement.
Patent Information
- Application Number
- CN202411315071.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2024-12-17
AI Technical Summary
The basement base plate construction joint is prone to seepage when it is below the groundwater level line. The existing steel plate water stops have poor waterproofing effect, especially when the gap is large, there is a significant risk of seepage. Moreover, the basement waterproofing is a hidden project and water leakage is The consequences are serious.
The method of setting up the bottom concrete leveling layer, structural layer, waterproof layer and plain concrete cushion layer from top to bottom. By drilling waterproof holes on both sides of the construction joints, pouring concrete into the grouting holes for water stop reinforcement, and The construction joints are covered with protective concrete layer and outer waterproof layer, and the waterproof effect is enhanced by acrylate waterproof material and staggered grouting holes.
It has achieved the removal of the structural base plate to treat leakage, convenient construction, no impact on the use of the basement, economical, environmentally friendly and energy-saving, restoring waterproof functions, strengthening and strengthening the construction parts, significantly enhancing the waterproof performance.
Smart Images
Figure CN119145459A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the field of construction joint leakage control, and in particular relates to a method for controlling the leakage of a basement bottom plate construction joint. Background Art
[0002] With the acceleration of urbanization, the basements in urban construction are getting bigger and deeper. This is the result of large-scale and high-rise urban buildings and the full utilization of underground space.
[0003] The concrete of the basement floor and top slabs are poured separately. When the wall panel concrete is poured next time, there will be a construction cold joint. When the position of this joint is below the groundwater level, it is easy to cause water seepage. Basement waterproofing is a concealed project. If water leakage occurs during future use, the consequences will be disastrous. The function of the steel plate waterstop (waterstop steel plate) is to prevent water seepage. When pouring the lower layer of concrete, the steel plate is embedded in advance, and the upper part of part of the steel plate is exposed to the outside. When pouring concrete next time, this part of the steel plate is poured together to prevent the infiltration of pressure water from the outside; its disadvantage is that the waterproof effect of the structure is poor, and when the gap of the construction joint is large, there is still a risk of water seepage. Summary of the invention
[0004] The purpose of the present invention is to provide a method for treating leakage in construction joints of a basement floor, which can achieve leakage treatment without chiseling out the concrete leveling layer of the structural floor, is convenient for construction, does not affect the use of the basement, and is economical, environmentally friendly and energy-saving.
[0005] The object of the present invention is achieved in this way: a method for treating leakage of construction joints of basement floor, comprising a floor concrete leveling layer, a floor structural layer, a floor waterproof layer and a plain concrete cushion layer arranged in sequence from top to bottom, wherein the floor structural layer is provided with a plurality of pieces, a construction joint is left between any two adjacent floor structural layers, and a pre-buried middle steel plate water stop is arranged between the two adjacent floor structural layers, and the method comprises the following steps: (1) Drill at least one row of waterproof holes downward from the left and right sides of each construction joint. The waterproof holes are arranged vertically. The arrangement direction of each row of waterproof holes is parallel to the length direction of the construction joint. The upper end of the waterproof hole passes through the concrete leveling layer of the bottom plate, and the lower end of the waterproof hole corresponds to the bottom plate waterproof layer. The waterproof material is injected into the bottom plate waterproof layer through the waterproof hole to reconstruct the waterproof layer; (2) At least one row of grouting holes is drilled obliquely toward the construction joint from the left and right sides of each construction joint, and grouting is performed into the construction joint through each grouting hole for water-stopping reinforcement. Grouting is performed by injecting concrete; (3) After the concrete injected into the grouting hole solidifies, a protective concrete layer is poured over each construction joint. The left and right sides of the protective concrete layer are located on the left and right sides of the construction joint respectively, and the length of the protective concrete layer is greater than the length of the construction joint; (4) Make an external waterproof layer on the surface of the protective concrete layer using waterproof material.
[0006] As a further improvement of the present invention, a plain soil ramming layer is provided below the plain concrete cushion layer.
[0007] As a further improvement of the present invention, the distance between the waterproof hole near the construction joint and the construction joint in the horizontal direction is 8-10 cm, the distance between two adjacent waterproof holes in each row of waterproof holes is 4-5 cm, and the waterproof material is an acrylate waterproof material. The waterproof material is injected into the bottom plate waterproof layer through multiple waterproof holes, so that the waterproof effect of the waterproof layer is better.
[0008] As a further improvement of the present invention, before injecting the waterproof material into the waterproof hole, a tube is first inserted into the waterproof hole, and the waterproof material is injected into the bottom plate waterproof layer through the tube, and the tube is taken out after injection. The length and diameter of the tube match the waterproof hole, and the waterproof material can be injected into the bottom plate waterproof layer without loss through the tube.
[0009] As a further improvement of the present invention, the upper end of the grouting hole passes through the concrete leveling layer of the bottom plate, the lower end of the grouting hole is located above the central steel plate water stop, the distance between any two adjacent grouting holes in each row of grouting holes is 3-4 cm, and the upper and lower ends of the grouting holes are respectively located on the left and right sides of the construction joint. The grouting holes on both sides are arranged obliquely and crosswise to ensure that concrete can be fully injected into the construction joint.
[0010] As a further improvement of the present invention, the grouting holes on the left and right sides of the construction joint are staggered along the length direction of the construction joint, the grouting holes on the left and right sides of the construction joint are staggered in sequence, and the grouting holes and the waterproof holes are staggered to avoid mixing of the grouting concrete and the waterproof material.
[0011] As a further improvement of the present invention, the bottom slab concrete leveling layer is provided with a plurality of embedding grooves for embedding concrete below the left and right edges of the protective concrete layer. The embedded concrete further improves the sealing performance.
[0012] Compared with the prior art, the beneficial effects of the present invention are: it can avoid the need to remove the concrete leveling layer of the structural bottom plate to control leakage, the construction is convenient, it does not affect the use of the basement, and it is economical, environmentally friendly and energy-saving; the waterproof function of the original bottom plate waterproof layer at the construction joint is restored; the concrete construction joint surface or the concrete bonding reinforcement at the construction site not only stops water and leaks, but more importantly, reinforces the construction of the bottom plate; by covering and pouring a protective concrete layer above the construction joint, and manufacturing an outer waterproof layer on the surface of the protective concrete layer, the waterproof performance is further enhanced. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of the bottom slab concrete leveling layer, the bottom slab structural layer, the bottom slab waterproof layer and the plain concrete cushion layer of the present invention.
[0014] Among them, 1 is the bottom plate concrete leveling layer, 2 is the bottom plate structural layer, 3 is the bottom plate waterproof layer, 4 is the plain concrete cushion layer, 5 is the construction joint, 6 is the center-mounted steel plate waterstop, 7 is the waterproof hole, 8 is the grouting hole, 9 is the protective concrete layer, 10 is the external waterproof layer, and 11 is the embedded groove. DETAILED DESCRIPTION
[0015] like Figure 1 As shown, a method for treating leakage of construction joints of basement floor slabs of the present invention comprises a floor slab concrete leveling layer 1, a floor slab structural layer 2, a floor slab waterproof layer 3 and a plain concrete cushion layer 4 which are sequentially arranged from top to bottom, and a plain soil ramming layer is arranged below the plain concrete cushion layer 4; the floor slab structural layer 2 is provided with a plurality of pieces, a construction joint 5 is left between any two adjacent floor slab structural layers 2, and a pre-buried centrally placed steel plate water stop 6 is arranged between the two adjacent floor slab structural layers 2, and the method comprises the following steps: (1) Drill at least one row of waterproof holes 7 downward from the left and right sides of each construction joint 5, the waterproof holes 7 are arranged vertically, and the arrangement direction of each row of waterproof holes 7 is parallel to the length direction of the construction joint 5. The upper end of the waterproof hole 7 passes through the bottom slab concrete leveling layer 1, and the lower end of the waterproof hole 7 corresponds to the bottom slab waterproof layer 3. The waterproof material is injected into the bottom slab waterproof layer 3 through the waterproof hole 7 to reconstruct the waterproof layer; the waterproof hole 7 close to the construction joint 5 is 8-10 cm away from the construction joint 5 in the horizontal direction, and the distance between two adjacent waterproof holes 7 in each row of waterproof holes 7 is 4-5 cm. The waterproof material is an acrylate waterproof material; the waterproof material is injected into the bottom slab waterproof layer 3 through multiple waterproof holes 7, so that the waterproof effect of the waterproof layer is better; before injecting the waterproof material into the waterproof hole 7, first insert a pipe into the waterproof hole 7, inject the waterproof material into the bottom slab waterproof layer 3 through the pipe, and then take out the pipe after injection; the length and diameter of the pipe match the waterproof hole 7, and the waterproof material can be injected into the bottom slab waterproof layer 3 without loss through the pipe; (2) At least one row of grouting holes 8 is drilled obliquely from the left and right sides of each construction joint 5 toward the construction joint 5, and grouting is performed into the construction joint 5 through each grouting hole 8 for water-stopping reinforcement, wherein the grouting is the injection of concrete; the upper end of the grouting hole 8 passes through the bottom slab concrete leveling layer 1, and the lower end of the grouting hole 8 is located above the centrally placed steel plate waterstop 6. The distance between any two adjacent grouting holes 8 on the left and right in each row of grouting holes 8 is 3-4 cm, and the upper and lower ends of the grouting holes 8 are located on the left and right sides of the construction joint 5, respectively; the grouting holes 8 on both sides are obliquely arranged crosswise to ensure that the concrete can be fully injected into the construction joint 5; (3) After the concrete injected into the grouting hole 8 solidifies, a protective concrete layer 9 is poured over each construction joint 5, with the left and right sides of the protective concrete layer 9 being located on the left and right sides of the construction joint 5 respectively, and the length of the protective concrete layer 9 being greater than the length of the construction joint 5; (4) An outer waterproof layer 10 is made of waterproof material on the surface of the protective concrete layer 9; a plurality of embedding grooves 11 for embedding concrete are provided on the bottom slab concrete leveling layer 1 below the left and right edges of the protective concrete layer 9. The embedded concrete further improves the sealing performance.
[0016] The grouting holes 8 on the left and right sides of the construction joint 5 are staggered along the length direction of the construction joint 5, and the grouting holes 8 on the left and right sides of the construction joint 5 are staggered in sequence, and the grouting holes 8 are staggered with the waterproof holes 7 to avoid mixing of the grouting concrete and the waterproof material.
[0017] The present invention can avoid the need to remove the concrete leveling layer 1 of the structural bottom plate to control leakage, and the construction is convenient, does not affect the use of the basement, and is economical, environmentally friendly and energy-saving; the waterproof function of the original bottom plate waterproof layer 3 at the construction joint 5 is restored; the concrete construction interface or the concrete bonding reinforcement at the construction site not only stops water and leaks, but more importantly, reinforces the construction of the bottom plate; a protective concrete layer 9 is cast over the construction joint 5, and an outer waterproof layer 10 is manufactured on the surface of the protective concrete layer 9 to further enhance the waterproof performance.
[0018] The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present invention, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present invention.
Claims
1. A method for treating leakage of construction joints in a basement floor, comprising a floor concrete leveling layer, a floor structural layer, a floor waterproof layer and a plain concrete cushion layer arranged in sequence from top to bottom, wherein the floor structural layer is provided with a plurality of pieces, a construction joint is left between any two adjacent floor structural layers, and a pre-buried centrally-placed steel plate waterstop is provided between the two adjacent floor structural layers, characterized in that: The method comprises the following steps: (1) Drill at least one row of waterproof holes downward from the left and right sides of each construction joint. The waterproof holes are arranged vertically. The arrangement direction of each row of waterproof holes is parallel to the length direction of the construction joint. The upper end of the waterproof hole passes through the concrete leveling layer of the bottom plate, and the lower end of the waterproof hole corresponds to the bottom plate waterproof layer. The waterproof material is injected into the bottom plate waterproof layer through the waterproof hole to reconstruct the waterproof layer; (2) At least one row of grouting holes is drilled obliquely toward the construction joint from the left and right sides of each construction joint, and grouting is performed into the construction joint through each grouting hole for water-stopping reinforcement. Grouting is performed by injecting concrete; (3) After the concrete injected into the grouting hole solidifies, a protective concrete layer is poured over each construction joint. The left and right sides of the protective concrete layer are located on the left and right sides of the construction joint respectively, and the length of the protective concrete layer is greater than the length of the construction joint; (4) Make an external waterproof layer on the surface of the protective concrete layer using waterproof material.
2. A method for treating leakage of a basement floor construction joint according to claim 1, characterized in that: A plain soil ramming layer is provided below the plain concrete cushion layer.
3. A method for treating leakage of a basement floor construction joint according to claim 1 or 2, characterized in that: The horizontal distance between the waterproof hole close to the construction joint and the construction joint is 8-10 cm, the distance between two adjacent waterproof holes in each row of waterproof holes is 4-5 cm, and the waterproof material is an acrylate waterproof material.
4. A method for treating leakage of a basement floor construction joint according to claim 1 or 2, characterized in that: Before injecting the waterproof material into the waterproof hole, first insert a pipe into the waterproof hole, inject the waterproof material into the bottom plate waterproof layer through the pipe, and take out the pipe after injection.
5. A method for treating leakage of a basement floor construction joint according to claim 1 or 2, characterized in that: The upper end of the grouting hole passes through the bottom slab concrete leveling layer, and the lower end of the grouting hole is located above the centrally mounted steel plate waterstop. The distance between any two adjacent grouting holes in each row of grouting holes is 3-4 cm, and the upper and lower ends of the grouting hole are respectively located on the left and right sides of the construction joint.
6. A method for treating leakage of a basement floor construction joint according to claim 1 or 2, characterized in that: The grouting holes on the left and right sides of the construction joint are staggered along the length direction of the construction joint, the grouting holes on the left and right sides of the construction joint are staggered in sequence, and the grouting holes and the waterproof holes are staggered.
7. A method for treating leakage of a basement floor construction joint according to claim 1 or 2, characterized in that: A plurality of embedding grooves for embedding concrete are provided on the bottom plate concrete leveling layer below the left and right edges of the protective concrete layer.