CN112252491B - Seepage-proofing device for concrete structure deformation joint and construction process thereof - Google Patents
Seepage-proofing device for concrete structure deformation joint and construction process thereof Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000010276 construction Methods 0.000 title claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 87
- 230000005484 gravity Effects 0.000 claims abstract description 25
- 230000006835 compression Effects 0.000 claims abstract description 22
- 238000007906 compression Methods 0.000 claims abstract description 22
- 229920001971 elastomer Polymers 0.000 claims abstract description 21
- 239000003566 sealing material Substances 0.000 claims abstract description 21
- 238000003825 pressing Methods 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims description 56
- 239000004568 cement Substances 0.000 claims description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000005056 compaction Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 235000019353 potassium silicate Nutrition 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 2
- 238000009435 building construction Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 238000003475 lamination Methods 0.000 description 6
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229920001021 polysulfide Polymers 0.000 description 3
- 239000005077 polysulfide Substances 0.000 description 3
- 150000008117 polysulfides Polymers 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6806—Waterstops
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
- E02D31/04—Watertight packings for use under hydraulic pressure
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6801—Fillings therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6803—Joint covers
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6812—Compressable seals of solid form
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0001—Rubbers
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electromagnetism (AREA)
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- General Life Sciences & Earth Sciences (AREA)
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Abstract
The invention relates to the technical field of building construction, in particular to an anti-seepage device for a deformation joint of a concrete structure and a construction process thereof, wherein the anti-seepage device comprises the deformation joint arranged on a building, a waterproof component is embedded in the deformation joint, a flexible sealing material layer is filled on the waterproof component, a gravity pressing layer is arranged on the flexible sealing material layer in a pressing mode, a sealing layer and a rubber elastic sealing strip are sequentially paved on the gravity pressing layer from bottom to top, the high-elasticity compression sealing body is adopted for sealing, and the anti-seepage device is matched with various protection means of the flexible sealing material layer, the gravity pressing layer and the rubber elastic sealing strip, has good sealing performance, has certain flexibility and cannot be damaged due to expansion, lifting and other reasons, and the high-elasticity compression sealing body is not easy to fall off due to various protection processes of the flexible sealing material layer, the gravity pressing layer, the rubber elastic sealing strip and the like, so that the deformation joint is not easy to leak effectively guaranteed.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to an anti-seepage device for a concrete structure deformation joint and a construction process thereof.
Background
The method for reserving deformation joints is a generic term of expansion joints, settlement joints and shock-proof joints, and aims to solve the deformation problems caused by factors such as temperature difference, settlement and shock resistance. However, due to the influence of factors in the aspects of technology, design, materials, construction, manufacturing cost and the like, the existing deformation joint sealing structure is extremely easy to damage due to a series of reasons such as periodic telescopic movement, settlement and the like of a building after being used for a period of time, water seepage is caused, and the waterproof of the deformation joint part becomes a weaker link which is almost ten joints and nine leaks. The leakage of the deformation joint causes blackening and mildewing at two sides of the joint due to water seepage and water leakage pollution, which affects the beautiful appearance and the use function of the building, and more seriously affects the durability and the safety of the structure, and the leakage of the deformation joint becomes one of important factors of engineering quality, so that the leakage problem must be carefully managed in order to ensure the safety and the normal use of the structure. Leakage of deformation joints has become a focus of attention in the industry, and as the joint width of the deformation joints is changed along with temperature difference, settlement and earthquake resistance, the treatment of the leakage of the deformation joints is troublesome, and once water seepage occurs, the leakage is hardly repaired, and contradiction between properties and owners is activated in a plurality of communities.
The leakage of the deformation joint is mainly caused by: 1. before concrete is poured, no feasible fixing measures or improper fixing methods are adopted for the water stop in the deformation joint; 2. the lap joint of the water stop belt is not well bonded, and a closed waterproof ring cannot be formed; 3. because concrete is not tightly vibrated, a gap is reserved at the water stop belt to form a seepage water channel; 4. due to uneven foundation settlement, the building deforms, so that the water stop belt is pulled apart beyond the limit, and water leakage is caused. The consolidation body formed by the oil-soluble polyurethane has high strength, good permeability resistance and low elasticity, and the plugging effect at the water-gushing position is poor, generally, the water-soluble polyurethane is injected to react with water and expand, and the water-leaking position is plugged to achieve the plugging effect, but the leakage phenomenon still occurs after long time.
The existing deformation joint repairing technology mainly adopts various grouting materials, such as polyurethane grouting materials, wherein a gel of water-soluble polyurethane reacts with water in the deformation joint to form a solidified body, and the solidified body can absorb certain water and swell, so that pressure is generated to block a leakage channel. The disadvantage is that even when the water-swellable solid body is dehydrated for a long period of time, the water-swellable solid body is dehydrated and contracted, and the contracted solid body cannot swell again when meeting water or has insufficient swelling rate, so that the water-proof effect is lost and the solid body is likely to leak again.
Disclosure of Invention
The invention aims to solve the technical problems that: the anti-seepage device for the concrete structure deformation joint has good sealing performance and certain flexibility, and is not damaged due to expansion, lifting and other reasons.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a seepage control device for concrete structure movement joint, includes the movement joint of establishing on the building, inlays in the movement joint and is equipped with waterproof component, and waterproof component is last to be filled with flexible sealing material layer, presses on the flexible sealing material layer to be equipped with the gravity lamination, and sealing layer and rubber elastic sealing strip have been laid down in proper order to the top of gravity lamination.
Furthermore, two side wall bodies of the deformation joint are provided with a plurality of grouting holes, and expansion type plugging materials are injected into the grouting holes under high pressure.
Further, deformation joint grooves are formed in the two side wall bodies of the deformation joint, a cement-based grouting material pouring layer is poured in the deformation joint grooves, steel bars are implanted in the cement-based grouting material pouring layer, the steel bars are angle steel and straight steel bars, the steel bars are implanted in the cement-based grouting material pouring layer according to the angle steel at the temperature of 8@150, and a new deformation joint is formed between the cement-based grouting material pouring layer and the deformation joint at the lower part.
Further, the waterproof component is a flexible backing and a high-elasticity compression sealing body which are sequentially filled from bottom to top.
Further, a sealing slot is formed in the cement-based grouting material pouring layer, a sealing layer and a gravity pressing layer are sequentially paved in the sealing slot from top to bottom, the gravity pressing layer applies pressure to the waterproof assembly, and a rubber elastic sealing strip is paved on the slotted surface of the deformation joint.
Furthermore, in order to achieve short coagulation time, high speed and high calculus strength, the expansion type plugging material is cement water glass double-liquid grouting material or cement-based grouting material, and the calculus rate after grouting can reach 100 percent.
A construction process of an anti-seepage device for a concrete structure deformation joint comprises the following steps,
Step one: sealing the channel to ensure that water does not enter the channel
A. Filling and sealing the gaps of the deformation joints by adopting a flexible back lining;
b. The seam of the deformation seam at the upper end of the flexible back lining is filled with a high-elasticity compression sealing body;
step two: sealing and protecting treatment for deformation joint
A. Filling a flexible sealing material layer on the surface of the high-elasticity compression sealing body for sealing;
b. Adopting a gravity lamination layer to fix and pressing the high-elasticity compression sealing body;
c. the deformation joint is sealed by a sealing layer, so that the deformation resistance of the deformation joint is enhanced;
d. Observing for 3-5 days, performing secondary plugging treatment on the part still leaking part, ensuring that the deformation joint is not leaked, and finally sticking a rubber elastic sealing strip on the surface for protection.
Further, a water source pretreatment step for isolating the water source is also arranged before the first step,
The pretreatment step of the water source comprises the following steps:
a. adopting a rigid material to carry out temporary sealing treatment on the deformation joint;
b. Grouting holes are drilled along two sides of the deformation joint, the punching interval can be properly adjusted according to the on-site grouting condition, and an expansion type plugging material is injected into the deformation joint by adopting a high-pressure grouting method, so that the compaction of the injection is ensured;
Further, a concrete pretreatment step for re-manufacturing the deformation joint is also arranged before the first step,
The concrete pretreatment step: re-made seam
A. And (3) carrying out re-seam making treatment on two sides of the deformation seam so as to form a cement-based grouting material pouring layer, and arranging reinforcing steel bars in the cement-based grouting material pouring layer.
Further, a concrete pretreatment step for re-manufacturing the deformation joint is arranged between the water source pretreatment step and the first step,
The concrete pretreatment steps comprise:
a. And (3) carrying out re-seam making treatment on two sides of the deformation seam so as to form a cement-based grouting material pouring layer, and arranging reinforcing steel bars in the cement-based grouting material pouring layer.
The invention has the beneficial effects that the defects existing in the background technology are overcome, the high-elasticity compression sealing body is adopted for sealing, and the high-elasticity compression sealing body is matched with a plurality of protection means of the flexible sealing material layer, the gravity lamination layer and the rubber elastic sealing strip, so that the sealing performance is good, the sealing performance is certain, the sealing performance is not damaged due to expansion, lifting and other reasons, and the high-elasticity compression sealing body is not easy to fall off due to a plurality of protection processes of the flexible sealing material layer, the gravity lamination layer, the rubber elastic sealing strip and the like, so that the deformation joint is not easy to leak under deformation.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
FIG. 2 is a schematic diagram of the pretreatment structure of the water source according to embodiment 2 of the present invention;
FIG. 3 is a cross-sectional view taken along line 1-1 of FIG. 2 in accordance with the present invention;
FIG. 4 is a schematic view of the structure of the concrete pretreatment for re-sewing in example 3 of the present invention;
Fig. 5 is a schematic structural view of embodiment 4 of the present invention.
In the figure: 3. deformation joint, deformation joint grooving, cement-based grouting material pouring layer, steel bar, flexible backing, high-elasticity compression sealing body, flexible sealing material layer, sealing grooving, sealing layer, gravity pressing layer, rubber elastic sealing strip and grouting hole, wherein the deformation joint, the deformation joint grooving, the cement-based grouting material pouring layer, the steel bar, the flexible backing, the high-elasticity compression sealing body, the flexible sealing material layer, the sealing grooving, the sealing layer, the gravity pressing layer, the rubber elastic sealing strip and the grouting hole are arranged in sequence.
Detailed Description
The invention will now be described in further detail with reference to the drawings and a preferred embodiment. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention.
Example 1:
The anti-seepage device for the deformation joint of the concrete structure shown in fig. 1 comprises a deformation joint 3 arranged on a building, wherein a waterproof component is embedded in the deformation joint 3, a flexible sealing material layer 9 is filled on the waterproof component, a gravity pressing layer 12 is pressed on the flexible sealing material layer 9, a sealing layer 11 and a rubber elastic sealing strip 13 are sequentially paved above the gravity pressing layer 12 from bottom to top, and the waterproof component comprises a flexible backing 7 and a high-elasticity compression sealing body 8 which are sequentially filled from bottom to top; the gravity laminated layer 12 is a stainless steel plate, the sealing layer 11 is a polysulfide rubber sealing layer, the high-elasticity compression sealing body 8 is a novel sealing material (commercially available), is a rubber material with a permanent elasticity and a special formula, can effectively seal the deformation requirement of a deformation joint, and has the functions of resisting the deformation joint deformation exceeding the deformation range of the high-elasticity compression sealing body by the protection measures of the flexible sealing material layer, the stainless steel plate, the polysulfide rubber sealing layer and the elastic water stop belt, wherein the protection measures are compounded on the flexible sealing material layer, the polysulfide rubber sealing layer and the elastic water stop belt, and the deformation resistance of the high-elasticity compression sealing body is greatly improved.
The cement-based grouting material pouring layer 5 is provided with a sealing slot 10, a sealing layer 11 and a gravity pressing layer 12 are sequentially paved in the sealing slot 10 from top to bottom, the gravity pressing layer 12 applies pressure to the waterproof assembly, the surface of the deformation joint slot 4 is further paved with a rubber elastic sealing strip 13, and the rubber elastic sealing strip 13 is an elastic water stop belt.
And moreover, the gravity laminated layer 12 and the cement-based grouting material pouring layer 5 are fixedly connected through bolts, the flexible backing 7 is a sealant flexible backing, and the upper surface of the flexible sealing material layer 9 is flush with the bottom surface of the sealing groove 10.
The deformation joint repairing construction process comprises the following steps:
step one: sealing the channel to ensure that water does not enter the channel
A. Filling and sealing the gap of the deformation joint 3 by adopting a flexible back lining 7;
b. The seam of the deformation seam 3 at the upper end of the flexible back 7 is filled with a high-elasticity compression sealing body 8;
step two: sealing and protecting treatment for deformation joint
A. the surface of the high-elasticity compression sealing body 8 is filled with a flexible sealing material layer 9 for sealing;
b. the gravity lamination 12 is adopted for fixing, and the high-elasticity compression sealing body 8 is pressed;
c. The deformation joint 3 is sealed by adopting a sealing layer 11, so that the deformation resistance is enhanced;
d. After 3-5 days of observation and secondary plugging treatment of the part still leaking, the deformation joint 3 is ensured not to leak, and finally the surface is stuck with a rubber elastic sealing strip 13 for protection.
Example 2:
When the deformation joint seepage prevention treatment is performed on a building such as a basement, a water source pretreatment is required to be added before the embodiment 1, as shown in fig. 2-3, a plurality of grouting holes 14 are formed on two sides of the deformation joint 3, and expansion type plugging materials are injected into the grouting holes 14 at high pressure, wherein the expansion type plugging materials are cement water glass double-liquid grouting materials or expansion type plugging materials of cement-based grouting materials, and react with the water source and form stones, so that the water source is isolated.
The adjacent grouting holes 14 are arranged at intervals, and the grouting holes 14 on the two sides of the deformation joint 3 are also arranged in a staggered way.
The pretreatment step of the water source:
a. adopting a rigid material to carry out temporary sealing treatment on the deformation joint;
b. grouting holes 14 are drilled along two sides of the deformation joint, the punching interval can be properly adjusted according to the on-site grouting condition, and an expansion type plugging material is injected into the deformation joint by adopting a high-pressure grouting method, so that the compaction of the injection is ensured.
Example 3:
when the concrete on two sides of the deformation joint 3 is loose, as shown in a figure 4, on the basis of the embodiment 1, the concrete pretreatment of the re-manufacturing joint of the deformation joint 3 is added, deformation joint grooves 4 are formed in two side wall bodies of the deformation joint 3, a cement-based grouting material pouring layer 5 is poured in the deformation joint grooves 4, reinforcing steel bars 6 are planted in the cement-based grouting material pouring layer 5, the reinforcing steel bars 6 are angle steel and straight reinforcing steel bars, the reinforcing steel bars 6 are planted in the cement-based grouting material pouring layer 5 according to 8@150, and the cement-based grouting material pouring layer 5 and the deformation joint on the lower part form a new deformation joint.
The concrete pretreatment step:
a. And (3) carrying out re-seam making treatment on the two sides of the deformation seam so as to form a cement-based grouting material pouring layer 5, and arranging reinforcing steel bars 6 in the cement-based grouting material pouring layer 5.
Embodiment four:
When the concrete on two sides of the deformation joint 3 is loose, as shown in a figure 5, on the basis of the embodiment 2, the concrete pretreatment of the re-manufacturing joint of the deformation joint 3 is added, deformation joint grooves 4 are formed in two side wall bodies of the deformation joint 3, a cement-based grouting material pouring layer 5 is poured in the deformation joint grooves 4, reinforcing steel bars 6 are planted in the cement-based grouting material pouring layer 5, the reinforcing steel bars 6 are angle steel and straight reinforcing steel bars, the reinforcing steel bars 6 are planted in the cement-based grouting material pouring layer 5 according to 8@150, and the cement-based grouting material pouring layer 5 and the deformation joint on the lower part form a new deformation joint.
The concrete pretreatment step:
a. And (3) carrying out re-seam making treatment on the two sides of the deformation seam so as to form a cement-based grouting material pouring layer 5, and arranging reinforcing steel bars 6 in the cement-based grouting material pouring layer 5.
The foregoing description is merely illustrative of specific embodiments of the invention, and the invention is not limited to the details shown, since modifications and variations of the foregoing embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a seepage prevention device for concrete structure movement joint, includes movement joint (3) of establishing on the building, its characterized in that: the waterproof assembly is embedded in the deformation joint (3), a flexible sealing material layer (9) is filled on the waterproof assembly, a gravity pressing layer (12) is pressed on the flexible sealing material layer (9), and a sealing layer (11) and a rubber elastic sealing strip (13) are sequentially paved above the gravity pressing layer (12) from bottom to top;
two side wall bodies of the deformation joint (3) are provided with a plurality of grouting holes (14), and expansion type plugging materials are injected into the grouting holes (14) under high pressure;
The waterproof component is a flexible backing (7) and a high-elasticity compression sealing body (8) which are sequentially filled from bottom to top.
2. The seepage-proofing device for deformation joints of concrete structures as claimed in claim 1, wherein: deformation joint grooves (4) are formed in two side wall bodies of the deformation joint (3), a cement-based grouting material pouring layer (5) is poured in the deformation joint grooves (4), reinforcing steel bars (6) are implanted in the cement-based grouting material pouring layer (5), and the cement-based grouting material pouring layer (5) and the deformation joint at the lower part form a new deformation joint.
3. The seepage-proofing device for deformation joints of concrete structures as claimed in claim 2, wherein: the cement-based grouting material pouring layer (5) is provided with a sealing slot (10), a sealing layer (11) and a gravity pressing layer (12) are sequentially paved in the sealing slot (10) from top to bottom, the gravity pressing layer (12) applies pressure to the waterproof assembly, and a rubber elastic sealing strip (13) is paved on the surface of the deformation joint slot (4).
4. The seepage-proofing device for deformation joints of concrete structures as claimed in claim 1, wherein: the expansion type plugging material is cement water glass double-liquid grouting material or cement-based grouting material.
5. A construction process of an anti-seepage device for a deformation joint of a concrete structure according to any one of claims 1 to 4, which is characterized in that: comprises the steps of,
Step one: sealing the channel to ensure that water does not enter the channel
A. Filling and sealing the gaps of the deformation joint (3) by adopting a flexible back lining (7);
b. the seam of the deformation seam (3) at the upper end of the flexible back lining (7) is filled with a high-elasticity compression sealing body (8);
step two: sealing and protecting treatment for deformation joint
A. filling a flexible sealing material layer (9) on the surface of the high-elasticity compression sealing body (8) for sealing;
b. Adopting a gravity pressing layer (12) to fix and pressing the high-elasticity compression sealing body (8);
c. the deformation joint (3) is sealed by a sealing layer (11) to strengthen the deformation resistance;
d. after 3-5 days of observation and secondary plugging treatment of the part still leaking, the deformation joint (3) is ensured not to leak, and finally, a rubber elastic sealing strip (13) is stuck on the surface for protection.
6. The seepage-proofing device for deformation joints of concrete structures as defined in claim 5, wherein: a water source pretreatment step for isolating the water source is also arranged before the first step,
The pretreatment step of the water source comprises the following steps:
a. adopting a rigid material to carry out temporary sealing treatment on the deformation joint;
b. Grouting holes (14) are drilled along two sides of the deformation joint, the punching interval can be properly adjusted according to the on-site grouting condition, and an expansion type plugging material is injected into the deformation joint by adopting a high-pressure grouting method, so that the compaction of the injection is ensured.
7. The seepage-proofing device for deformation joints of concrete structures as defined in claim 5, wherein: a concrete pretreatment step for re-manufacturing the deformation joint is further arranged before the first step,
The concrete pretreatment step: re-made seam
A. And (3) carrying out re-seam making treatment on two sides of the deformation seam so as to form a cement-based grouting material pouring layer (5), and arranging reinforcing steel bars (6) in the cement-based grouting material pouring layer (5).
8. The seepage-proofing device for deformation joints of concrete structures as defined in claim 6, wherein: a concrete pretreatment step for re-manufacturing the deformation joint is also arranged between the water source pretreatment step and the first step,
The concrete pretreatment steps comprise:
a. And (3) carrying out re-seam making treatment on two sides of the deformation seam so as to form a cement-based grouting material pouring layer (5), and arranging reinforcing steel bars (6) in the cement-based grouting material pouring layer (5).
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| CN202011107729.0A CN112252491B (en) | 2020-10-16 | 2020-10-16 | Seepage-proofing device for concrete structure deformation joint and construction process thereof |
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| CN202011107729.0A CN112252491B (en) | 2020-10-16 | 2020-10-16 | Seepage-proofing device for concrete structure deformation joint and construction process thereof |
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| CN112252491B true CN112252491B (en) | 2024-08-20 |
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| CN113068621A (en) * | 2021-03-25 | 2021-07-06 | 山东大学 | Waterproof method for prefabricated excrement groove plate seam |
| CN114562041B (en) * | 2022-04-06 | 2023-05-02 | 南通理工学院 | Anti-seepage structure using precast concrete member |
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| CN103015538B (en) * | 2011-09-22 | 2016-08-03 | 江苏鼎达建筑新技术有限公司 | The percolator of a kind of concrete structure deformation joint and method for treating seepage |
| CN107313791A (en) * | 2017-08-01 | 2017-11-03 | 广东遂达工程技术有限公司 | The elasticity grouting back-pressure sealing structure and its construction method at a kind of expansion joint |
| CN108265761B (en) * | 2018-01-17 | 2019-10-29 | 湖南省第一工程有限公司 | A kind of waterproof connecting structure of building deformation joint |
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