CN112252491A - 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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- CN112252491A CN112252491A CN202011107729.0A CN202011107729A CN112252491A CN 112252491 A CN112252491 A CN 112252491A CN 202011107729 A CN202011107729 A CN 202011107729A CN 112252491 A CN112252491 A CN 112252491A
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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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0001—Rubbers
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, the anti-seepage device comprises a deformation joint arranged on a building, a waterproof assembly is embedded in the deformation joint, a flexible sealing material layer is filled on the waterproof assembly, a gravity pressing layer is pressed on the flexible sealing material layer, a sealing layer and a rubber elastic sealing strip are sequentially paved on the gravity pressing layer from bottom to top, a high-elasticity compression sealing body is adopted for sealing, and is matched with a plurality of protection means of a flexible sealing material layer, a gravity lamination and a rubber elastic sealing strip, the sealing performance is good, the flexible sealing material layer, the gravity pressing layer, the rubber elastic sealing strip and other various protection processes enable the high-elasticity compression sealing body to be difficult to fall off, and effectively guarantee that the deformation joint is difficult to leak only when deformed.
Description
Technical Field
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.
Background
The deformation joint reservation method is characterized in that the influence of factors such as expansion, settlement and earthquake resistance is considered when a large-size building is designed and built, the deformation joint is a general name of an expansion joint, a settlement joint and an earthquake-proof joint, and the reserved deformation joint aims at solving the deformation problem caused by factors such as temperature difference, settlement and earthquake resistance. However, due to the influence of factors in the aspects of technology, design, materials, construction, manufacturing cost and the like, after the existing deformation joint sealing structure is used for a period of time, the existing deformation joint sealing structure is easily damaged due to a series of reasons such as periodic telescopic motion and settlement of a building, water seepage is caused, and the waterproof performance of a deformation joint part is a weak link, namely, nine ten joints and nine leaks. The deformation joint leaks water, causes the two sides of the joint to blacken and mildew due to water seepage and water leakage pollution, affects the beauty and the use function of a building, and more seriously affects the durability and the safety of a structure, and the leakage of the deformation joint becomes one of important factors of engineering quality, so that the leakage problem needs to be carefully controlled to ensure the safety and the normal use of the structure. The leakage of the deformation joint becomes a focus of attention in the industry, the leakage of the deformation joint is difficult to control because the width of the deformation joint changes along with temperature difference, settlement and earthquake resistance, and once water seepage occurs, the deformation joint is almost difficult to repair, so that contradiction between property and owners is excited in a plurality of districts.
The main causes of the leakage of the deformation joint are: 1. before concrete pouring, 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 joint is not well bonded, and a closed waterproof ring cannot be formed; 3. because the concrete is not vibrated tightly, a gap is left at the water stop belt to form a water leakage channel; 4. because the foundation settlement is uneven, the building deforms, so that the water stop is pulled apart beyond the limit, and water leakage is caused. Because the consolidation body formed by the oil-soluble polyurethane has high strength and good permeability resistance, but has small elasticity, and the leakage stopping effect at the water gushing position is poor, the leakage stopping effect is achieved by generally injecting the waterborne polyurethane, reacting and expanding the waterborne polyurethane with water and stopping the water leakage position, but the leakage phenomenon still occurs after a long time.
The existing deformation joint repairing technology mainly adopts various grouting materials, such as polyurethane grouting materials, wherein a cementing body of water-soluble polyurethane reacts with water in the deformation joint to form a cementing body, and the cementing body can absorb certain water and swell to further generate pressure to block a leakage channel. The defects are that when the water-absorbing and swelling solidified body loses water for a long time, the solidified body loses water and shrinks, and the shrunk solidified body cannot swell when meeting water again or the swelling ratio is insufficient, so that the waterproof effect is lost and the solidified body is likely to leak again.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the seepage-proofing device for the concrete structure deformation joint has good sealing performance and certain flexibility, and cannot be damaged due to stretching, lifting and the like.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a concrete structure is anti-seepage device for movement joint, is including establishing the movement joint on the building, inlays in the movement joint and is equipped with waterproof component, and the last packing of waterproof component has flexible sealing material layer, and flexible sealing material layer is gone up to press and is equipped with the gravity and presses the layer, and sealing layer and rubber elastic sealing strip have been laid from bottom to top in proper order on the gravity presses the layer.
Furthermore, a plurality of grouting holes are formed in wall bodies on two sides of the deformation joint, and expansion type plugging materials are injected into the grouting holes at high pressure.
Furthermore, deformation joint slots are formed in wall bodies on two sides of the deformation joint, a cement-based grouting material pouring layer is poured in the deformation joint slots, reinforcing steel bars are implanted in the cement-based grouting material pouring layer and are angle steel and straight reinforcing steel bars, the reinforcing steel bars are implanted into the cement-based grouting material pouring layer according to the range of 8@150, and the cement-based grouting material pouring layer and the deformation joint on the lower portion form a new deformation joint.
Further, the waterproof component is a flexible backing and a high-elasticity compression sealing body which are sequentially filled from bottom to top.
Furthermore, the grouting pouring layer is provided with a sealing groove, a sealing layer and a gravity pressing layer are sequentially laid in the sealing groove from top to bottom, the gravity pressing layer applies pressure to the waterproof assembly, and the surface of the deformation joint groove is also provided with a rubber elastic sealing strip.
Furthermore, in order to shorten the setting time, increase the speed and increase the strength of the concretion, the expansion type plugging material is the expansion type plugging material of cement-water-glass double-liquid grouting material or cement-based pouring material, and the concretion rate after pouring can reach 100 percent.
A construction process of an anti-seepage device for a deformation joint of a concrete structure as claimed in any one of claims 1 to 6, comprising the steps of,
the method comprises the following steps: the channel is closed to ensure that water does not enter the channel
a. Filling and sealing the gaps of the deformation joints by adopting a flexible backing;
b. a high-elasticity compression sealing body is filled in a deformation joint at the upper end of the flexible backing;
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. fixing by adopting a gravity lamination and applying pressure to the high-elasticity compression sealing body;
c. sealing the deformation joint by using a sealing layer to strengthen the deformation resistance of the deformation joint;
d. and observing for 3-5 days, performing secondary leaking stoppage treatment on the local still-leaking part to ensure that the deformation joint does not leak any more, and finally adhering a rubber elastic sealing strip on the surface for protection.
Further, a water source pretreatment step for isolating a water source is also arranged before the step one,
the water source pretreatment step comprises:
a. temporarily sealing the deformation joint by adopting a rigid material;
b. drilling grouting holes along two sides of the deformation joint, properly adjusting the punching distance according to the field slurry outlet condition, injecting the expansion type plugging material into the deformation joint by adopting a high-pressure grouting method, and ensuring compact pressure injection;
furthermore, a concrete pretreatment step for reconstructing the deformation joint is also arranged before the step one,
the concrete pretreatment step: refabrication of seams
a. And (4) performing joint reconstruction treatment on two sides of the deformation joint 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 reconstructing the deformation joint is also arranged between the water source pretreatment step and the first step,
the concrete pretreatment step comprises the following steps:
a. and (4) performing joint reconstruction treatment on two sides of the deformation joint 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 advantages that the defects in the background technology are overcome, the sealing is realized by adopting the high-elasticity compression sealing body, and the multiple protection means of the flexible sealing material layer, the gravity pressing layer and the rubber elastic sealing strip are matched, so that the sealing performance is good, certain flexibility is realized, the damage caused by stretching, lifting and the like is avoided, the high-elasticity compression sealing body is not easy to fall off due to the multiple protection processes of the flexible sealing material layer, the gravity pressing layer, the rubber elastic sealing strip and the like, and the deformation joint is effectively ensured not to leak easily under the deformation.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
FIG. 2 is a schematic diagram of the structure of water source pretreatment according to example 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 structural view of a concrete pretreatment for re-joint in example 3 of the present invention;
fig. 5 is a schematic structural diagram of embodiment 4 of the present invention.
In the figure: 3. deformation joints, 4 deformation joint slotting, 5 cement-based grouting material pouring layers, 6 reinforcing steel bars, 7 flexible back linings, 8 high-elasticity compression sealing bodies, 9 flexible sealing material layers, 10 sealing slotting layers, 11 sealing layers, 12 gravity pressing layers, 13 rubber elastic sealing strips and 14 grouting holes.
Detailed Description
The invention will now be described in further detail with reference to the drawings and preferred embodiments. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
Example 1:
the seepage-proofing device for the concrete structure deformation joint comprises a deformation joint 3 arranged on a building, a 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, a sealing layer 11 and a rubber elastic sealing strip 13 are sequentially laid on the gravity pressing layer 12 from bottom to top, wherein the waterproof assembly is a flexible backing 7 and a high-elasticity compression sealing body 8 which are sequentially filled from bottom to top; the gravity pressing 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) which is a rubber material with a permanent elasticity special formula and can effectively seal deformation requirements of deformation joints, the flexible sealing material layer, the stainless steel plate, the polysulfide rubber sealing layer and the elastic water stop belt which are compounded and used on the gravity pressing layer are used as protective measures for resisting deformation of the deformation joints exceeding the deformation range of the high-elasticity compression sealing body, the application range of the high-elasticity compression sealing body is enlarged by overlapping application, and the deformation resistance of the high-elasticity compression sealing body is greatly improved.
The grouting pouring layer 5 is provided with a sealing groove 10, a sealing layer 11 and a gravity pressing layer 12 are sequentially laid in the sealing groove 10 from top to bottom, the gravity pressing layer 12 applies pressure to the waterproof assembly, a rubber elastic sealing strip 13 is further laid on the surface of the deformation joint groove 4, and the rubber elastic sealing strip 13 is an elastic water stop.
And the gravity pressure 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:
the method comprises the following steps: the channel is closed to ensure that water does not enter the channel
a. Filling and sealing the gap of the deformation joint 3 by adopting a flexible backing 7;
b. a high-elasticity compression sealing body 8 is filled in the seam of the deformation seam 3 at the upper end of the flexible backing 7;
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. fixing by adopting a gravity lamination layer 12 and pressing the high-elasticity compression sealing body 8;
c. sealing the deformation joint 3 by using a sealing layer 11 to strengthen the deformation resistance of the deformation joint;
d. and observing for 3-5 days, performing secondary leaking stoppage treatment on the local still-leaking part, ensuring that the deformation joint 3 does not leak any more, and finally adhering a rubber elastic sealing strip 13 on the surface for protection.
Example 2:
when deformation joint seepage-proofing treatment is carried out on buildings such as basements, water source pretreatment is required to be added before embodiment 1, as shown in fig. 2-3, a plurality of grouting holes 14 are formed in two sides of a deformation joint 3, expansion type plugging materials are injected into the grouting holes 14 at high pressure, the expansion type plugging materials are cement-water-glass double-liquid grouting materials or expansion type plugging materials of cement-based pouring materials, and the expansion type plugging materials injected at high pressure react with water sources to cause stones, so that water sources are isolated.
The adjacent grouting holes 14 are arranged at intervals, and the grouting holes 14 on the two side edges of the deformation joint 3 are also arranged in a staggered manner.
Water source pretreatment:
a. temporarily sealing the deformation joint by adopting a rigid material;
b. and grouting holes 14 are drilled along two sides of the deformation joint, the punching distance can be properly adjusted according to the field slurry outlet condition, the expansion type plugging material is injected into the deformation joint by adopting a high-pressure grouting method, and the compaction of pressure injection is ensured.
Example 3:
when the concrete of movement joint 3 both sides is loose, as shown in 4, on embodiment 1's basis, increase the concrete preliminary treatment to movement joint 3 refabrication joint, movement joint fluting 4 has all been seted up on movement joint 3's the both sides wall body, cement base grout pouring layer 5 has been pour in movement joint fluting 4, implant reinforcing bar 6 in the cement base grout pouring layer 5, reinforcing bar 6 is angle steel and straight reinforcing bar, reinforcing bar 6 implants in the cement base grout pouring layer 5 according to 8@150, cement base grout pouring layer 5 forms new movement joint with the movement joint of lower part.
The concrete pretreatment step:
a. and (4) performing joint reconstruction treatment on two sides of the deformation joint 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.
Example four:
when the concrete of 3 both sides of movement joint is loose, as shown in 5, on the basis of embodiment 2, increase the concrete preliminary treatment to movement joint 3 refabrication joint, movement joint fluting 4 has all been seted up on the both sides wall body of movement joint 3, cement base grout pouring layer 5 has been pour in movement joint fluting 4, implant reinforcing bar 6 in the cement base grout pouring layer 5, reinforcing bar 6 is angle steel and straight reinforcing bar, reinforcing bar 6 implants in the cement base grout pouring layer 5 according to 8@150, cement base grout pouring layer 5 forms new movement joint with the movement joint of lower part.
The concrete pretreatment step:
a. and (4) performing joint reconstruction treatment on two sides of the deformation joint 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.
While particular embodiments of the present invention have been described in the foregoing specification, various modifications and alterations to the previously described embodiments will become apparent to those skilled in the art from this description without departing from the spirit and scope of the invention.
Claims (10)
1. An anti-seepage device for a deformation joint of a concrete structure comprises a deformation joint (3) arranged on a building, and is characterized in that: deformation joint (3) in inlay and be equipped with waterproof component, waterproof component is gone up to pack has flexible sealing material layer (9), flexible sealing material layer (9) are gone up to press and are equipped with gravity pressure layer (12), from down having laid sealing layer (11) and rubber elasticity sealing strip (13) in proper order on the gravity pressure layer (12).
2. The seepage-proofing device for the deformation joint of the concrete structure as claimed in claim 1, wherein: a plurality of grouting holes (14) are formed in wall bodies on two sides of the deformation joint (3), and expansion type plugging materials are injected into the grouting holes (14) at high pressure.
3. An impermeable device for a concrete structure deformation joint according to claim 1 or 2, wherein: deformation joint fluting (4) have all been seted up on the both sides wall body of deformation joint (3), cement base grout material pouring layer (5) has been pour in deformation joint fluting (4), reinforcing bar (6) are implanted in cement base grout material pouring layer (5), cement base grout material pouring layer (5) and the deformation joint of lower part form new deformation joint.
4. The seepage-proofing device for the deformation joint of the concrete structure as claimed in claim 1, wherein: the waterproof assembly is a flexible backing (7) and a high-elasticity compression sealing body (8) which are sequentially filled from bottom to top.
5. An impermeable device for a concrete structure deformation joint according to claim 3, wherein: the grouting and pouring layer (5) is provided with a sealing groove (10), a sealing layer (11) and a gravity pressing layer (12) are sequentially paved in the sealing groove (10) from top to bottom, the gravity pressing layer (12) applies pressure to the waterproof assembly, and a rubber elastic sealing strip (13) is also paved on the surface of the deformation joint groove (4).
6. The seepage-proofing device for the deformation joint of the concrete structure as claimed in claim 1, wherein: the expansion type plugging material is a cement-water glass double-liquid grouting material or a cement-based pouring material.
7. A construction process of an anti-seepage device for a deformation joint of a concrete structure as claimed in any one of claims 1 to 6, wherein: comprises the following steps of (a) carrying out,
the method comprises the following steps: the channel is closed to ensure that water does not enter the channel
a. Filling and sealing the gap of the deformation joint (3) by adopting a flexible backing (7);
b. a high-elasticity compression sealing body (8) is filled in a deformation joint (3) at the upper end of the flexible backing (7);
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. fixing by adopting a gravity lamination layer (12) and applying pressure to the high-elasticity compression sealing body (8);
c. sealing the deformation joint (3) by using a sealing layer (11) to enhance the deformation resistance of the deformation joint;
d. and observing for 3-5 days, performing secondary leakage stopping treatment on the local leakage part, ensuring that the deformation joint (3) does not leak any more, and finally adhering a rubber elastic sealing strip (13) on the surface for protection.
8. An impermeable device for a concrete structure deformation joint according to claim 7, wherein: a water source pretreatment step for isolating a water source is also arranged before the step one,
the water source pretreatment step comprises:
a. temporarily sealing the deformation joint by adopting a rigid material;
b. grouting holes (14) are drilled along two sides of the deformation joint, the punching distance can be properly adjusted according to the field slurry outlet condition, the expansion type plugging material is injected into the deformation joint by adopting a high-pressure grouting method, and the compaction of pressure injection is ensured.
9. An impermeable device for a concrete structure deformation joint according to claim 7, wherein: the step one is also provided with a concrete pretreatment step for reconstructing the deformation joint before the step one,
the concrete pretreatment step: refabrication of seams
a. And (3) carrying out reconstruction joint treatment on two sides of the deformation joint 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).
10. The seepage-proofing device for the deformation joint of the concrete structure as claimed in claim 8, wherein: a concrete pretreatment step for reconstructing the deformation joint is also arranged between the water source pretreatment step and the first step,
the concrete pretreatment step comprises the following steps:
a. and (3) carrying out reconstruction joint treatment on two sides of the deformation joint 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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| Application Number | Priority Date | Filing Date | Title |
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| CN202011107729.0A CN112252491A (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 CN112252491A (en) | 2020-10-16 | 2020-10-16 | Seepage-proofing device for concrete structure deformation joint and construction process thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113068621A (en) * | 2021-03-25 | 2021-07-06 | 山东大学 | Waterproof method for prefabricated excrement groove plate seam |
| CN114562041A (en) * | 2022-04-06 | 2022-05-31 | 南通理工学院 | Anti-seepage structure applying precast concrete member |
-
2020
- 2020-10-16 CN CN202011107729.0A patent/CN112252491A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113068621A (en) * | 2021-03-25 | 2021-07-06 | 山东大学 | Waterproof method for prefabricated excrement groove plate seam |
| CN114562041A (en) * | 2022-04-06 | 2022-05-31 | 南通理工学院 | Anti-seepage structure applying precast concrete member |
| 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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