CN219196057U - Strong-pressure plugging structure for expansion joint of basement roof - Google Patents

Abstract

The utility model provides a strong-pressure plugging structure for an expansion joint of a basement roof, wherein the expansion joint is positioned between a wall body and the roof, a water stop belt is arranged in the middle of the expansion joint, and an original filling layer is arranged above the water stop belt; a water stop layer, an expansion filling layer, a first rubber pad and an L-shaped plate are sequentially arranged below the water stop belt; the vertical section of the L-shaped plate is adhered to the wall body and fixedly connected with the wall body, and the horizontal section of the L-shaped plate is positioned in the expansion joint; the lower surface of the horizontal section is flush with the lower surface of the top plate and is provided with a second rubber pad and a plugging plate in a downward and orderly clung manner; waterproof layers are covered on the vertical section, the plugging plate, and the wall body and the indoor side surface of the top plate around the vertical section and the plugging plate. The scheme aims at the situation that the expansion joint is positioned in front of the top plate and the wall body of the basement, realizes strong-pressure leakage stoppage, provides stronger binding force and waterproof effect, effectively resists external stronger underground water pressure, has more reliable leakage stoppage effect, and avoids leakage after construction.

Description

Strong-pressure plugging structure for expansion joint of basement roof

Technical Field

The utility model belongs to the technical field of constructional engineering, and particularly relates to a strong-pressure plugging structure for a basement roof expansion joint.

Background

The expansion joint is a structural joint arranged at a proper position along the direction of a building construction joint for preventing the building component from generating cracks or damages due to the change of climate temperature (expansion with heat and contraction with cold), and the expansion joint is filled with heat insulation materials and is provided with waterproof measures such as a water stop belt. On the roof of the basement, water leakage is easy to occur at the expansion joint due to the action of external underground water pressure. The existing plugging modes include: removing raw materials and impurities in the expansion joint to a specified depth (generally 7-10cm deep), and washing with water; fixing grouting channels (PE foam strips) by using a quick plugging agent, and burying grouting pipes at intervals of about 50cm when the PE foam strips are fixed; and (3) injecting the polymer grouting material from the bottom until the grouting is completed and no leakage exists. The prior art scheme only depends on a re-grouting mode, is poor in reliability and is easy to leak again.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: the strong-pressure plugging structure for the expansion joint of the basement roof aims at the situation that the expansion joint is positioned in front of the basement roof and a wall body, and achieves more reliable and effective plugging, so that stronger underground water pressure is resisted, and leakage is avoided after plugging construction.

According to the technical scheme, the utility model provides a strong-pressure plugging structure for an expansion joint of a basement roof, wherein the expansion joint is positioned between a wall body and the roof, a water stop belt is arranged in the middle of the expansion joint, and an original filling layer is arranged above the water stop belt; a water stop layer, an expansion filling layer, a first rubber pad and an L-shaped plate are sequentially arranged below the water stop belt; the vertical section of the L-shaped plate is adhered to the wall body and fixedly connected with the wall body, and the horizontal section of the L-shaped plate is positioned in the expansion joint; the lower surface of the horizontal section is flush with the lower surface of the top plate and is provided with a second rubber pad and a plugging plate in a downward and orderly clung manner; waterproof layers are covered on the vertical section, the plugging plate, and the wall body and the indoor side surface of the top plate around the vertical section and the plugging plate.

Further, a first positioning hole is formed in the vertical section of the L-shaped plate, a second positioning hole is formed in the wall body, and the first positioning hole corresponds to the second positioning hole and penetrates into the first expansion bolt.

Further, a third positioning hole is formed in the lower surface of the top plate, a fourth positioning hole and a fifth positioning hole are formed in the second rubber pad and the plugging plate respectively, and the third positioning hole, the fourth positioning hole and the fifth positioning hole correspond to each other and penetrate into the second expansion bolts.

Further, the part of the inner side of the expansion joint, which is positioned below the water stop, and the indoor side surfaces of the wall body and the top plate, which are adjacent to the expansion joint, are provided with cement reinforcing layers.

Further, the width of the horizontal section of the L-shaped plate is matched with the width of the expansion joint, and the width of the first rubber pad in a natural state is larger than the width of the expansion joint.

According to some embodiments, the water-stop layer has a thickness of not less than 50mm and the intumescent filler layer has a thickness of not less than 100mm.

According to some embodiments, the L-shaped plate and the plugging plate are stainless steel plates with thicknesses not smaller than 3mm, the thickness of the first rubber pad is 4mm, and the thickness of the second rubber pad is 2mm.

According to some embodiments, the thickness of the waterproof layer is not less than 3mm, and the distance between the waterproof layer and the two sides of the expansion joint is not less than 300mm.

Compared with the prior art, the utility model has the following beneficial technical effects:

this scheme is directed at the expansion joint and is located the condition before basement roof and the wall body, be provided with the water-stop layer that the mortar formed in the expansion joint with range upon range of, the expansion filling layer that non-solidification modified liquid rubber doped the expansion thing and by the inseparable first rubber pad in the expansion joint of impressing of L template, still be provided with second rubber pad, stainless steel's shutoff board and waterproof layer under L template, realize strong pressure leaking stoppage, provide stronger cohesion and waterproof effect, effectively resist outside stronger groundwater pressure, the leaking stoppage effect is more reliable, take place the seepage once more after avoiding the construction.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model.

Reference numerals in the drawings illustrate:

1. an expansion joint;

2. a wall body;

3. a top plate;

4. a water stop;

5. an original filling layer;

6. a water-blocking layer;

7. expanding the filling layer;

8. a first rubber pad;

9. an L-shaped plate;

10. a vertical section;

11. a horizontal section;

12. a second rubber pad;

13. a plugging plate;

14. a waterproof layer;

15. a first expansion bolt;

16. a second expansion bolt;

17. and a cement reinforcing layer.

Detailed Description

The utility model provides a strong-pressure plugging structure for an expansion joint of a basement roof, referring to fig. 1, an expansion joint 1 is positioned between a wall body 2 and a roof 3, a water stop belt 4 is arranged in the middle of the expansion joint 1, and an original filling layer 5 is arranged in the expansion joint 1. Aiming at the situation that leakage occurs at the position, the utility model realizes more reliable and effective leakage stoppage, so as to resist stronger underground water pressure above the top plate 3 and avoid leakage after leakage stoppage construction.

The utility model reserves an original filling layer 5 arranged above a water stop 4, cleans up the lower part of the water stop 4, and further sequentially arranges a water stop layer 6, an expansion filling layer 7, a first rubber pad 8 and an L-shaped plate 9. The water-stop layer 6 is preferably made of high-strength quick-drying repair mortar, and has a thickness of not less than 50mm. The expansion-filling layer 7 is preferably an expansion-mixed material of non-cured modified liquid rubber, and the thickness is not less than 100mm, preferably about 150 mm. The preferred thickness of first rubber pad 8 is 4mm, and the width under the nature is greater than the width of expansion joint 1, and the width of the horizontal segment 11 of L template 9 and expansion joint 1 assorted to horizontal segment 11 can impress in the expansion joint 1, ensures that first rubber pad 8 seals the lower extreme of expansion joint 1. The L-shaped plate 9 is, for example, a stainless steel plate with the thickness not smaller than 3mm, and the vertical section 10 of the L-shaped plate 9 is attached to the wall 2 and fixedly connected with the wall by means of bolts or adhesion. Preferably, a plurality of first positioning holes in a row are formed in the vertical section 10 of the L-shaped plate 9, a plurality of second positioning holes are correspondingly formed in the wall body 2, and the first positioning holes correspond to the second positioning holes and penetrate into the first expansion bolts 15, so that the L-shaped plate 9 is fixed firmly.

The lower surface of the horizontal section 11 of the L-shaped plate 9 is flush with the lower surface of the top plate 3 and is provided with a second rubber pad 12 and a plugging plate 13 in a downward and sequentially clinging manner. The second rubber pad 12 is preferably a 2mm thick non-cured rubber pad. The blocking plate 13 is, for example, a stainless steel plate having a thickness of not less than 3 mm. Preferably, a plurality of third positioning holes are formed in the lower surface of the top plate 3 at positions close to the expansion joint 1, a plurality of fourth positioning holes and a plurality of fifth positioning holes are correspondingly formed in the second rubber pad 12 and the plugging plate 13, the third positioning holes, the fourth positioning holes and the fifth positioning holes correspond to each other and penetrate into the second expansion bolts 16, and accordingly the top plate 3, the second rubber pad 12 and the plugging plate 13 are tightly adhered and fixedly secured.

The waterproof layer 14 is covered on the indoor side surfaces of the vertical section 10, the plugging plate 13, the wall body 2 around the vertical section and the plugging plate, and the roof 3. The thickness of the waterproof layer 14 is not less than 3mm, and the distance between the waterproof layer 14 and the two sides of the expansion joint 1 is not less than 300mm. The waterproof layer 14 is preferably formed by adopting the existing poly-nano film-cloth three-coating process, the thickness is about 3mm, and the poly-nano film refers to a waterproof material formed by uniformly dispersing nano superfine powder in polymer liquid, such as nano acrylic acid polymer cement anti-corrosion waterproof paint; "one cloth three coating" refers to a waterproof process of a layer of non-woven fabric or alkali-resistant grid cloth with three additional waterproof material layers.

The portion of the inner side of the expansion joint 1 located below the water stop 4, and the indoor side surfaces of the wall body 2 and the top plate adjacent to the expansion joint 1 are provided with cement reinforcing layers 17, namely the portion shown by thick lines on the right side of the wall body 1 and the left side and the lower side of the top plate 2 in fig. 1. The cement reinforcing layer 17 adopts cement reinforcing agent to strengthen the strength of the concrete base layer of the wall body 2 and the top plate 3 in and around the expansion joint 1. Preferably, the area covered by the cement reinforcing layer 17 outside the expansion joint 1 coincides with the waterproof layer 14 or is larger than the area covered by the waterproof layer 14, which helps to ensure the adhesion effect of the waterproof layer 14. Further, the wall body 2 and the top plate 3 are provided with original facing layers at the indoor sides, the original facing layers of the coverage area of the cement reinforcing layer 17 are removed during construction, the facing layers are restored to be arranged at the indoor sides of the waterproof layer 14 (and the peripheral wall body 2 and the top plate 3) during construction, and the attractiveness after construction is ensured.

The construction mode of the preferred plugging structure is as follows:

1. picking and chiseling: removing the original filler in the expansion joint 1 to the depth of about 200mm from the internal water stop 4, and cleaning up sundries and dust in the expansion joint 1;

2. interface treatment: coating a cement reinforcing agent in the expansion joint 1 and in the range of 300mm around the expansion joint to form a cement reinforcing layer 17;

3. and (3) water stopping: the expansion joint 1 is filled with Gao Jiangsu dry mortar with the thickness of 50mm to stop water, and no leakage of the clear water in the joint is confirmed to form a water stop layer 6;

4. filling: the expansion joint 1 is filled by adopting non-curing modified liquid rubber doped expansion materials from the bottom of the vertical joint to the joint (from top to bottom), compaction is carried out by adopting a tool for each 30mm of filling, and the like, until the position of the joint of the expansion joint 1 is 5mm higher than the edge of the expansion joint 1, the filling depth of about 150mm in the expansion joint 1 is ensured, and an expansion filling layer 7 is formed;

5. fixing a steel plate: drilling and embedding a first expansion bolt 15 in a wall body 2 at one side of a seam of an expansion joint 1, installing a 3mm thick L-shaped plate 9 (stainless steel plate prefabricated part), pressing a first rubber pad 12 with the thickness of 4mm at the bottom, wherein the length of the first rubber pad is longer than that of the expansion joint 1, and screwing the first expansion bolt 15 to enable a horizontal section 11 of the L-shaped plate 9 to be pressed into a first rubber pad 8, so that the seam of the expansion joint 1 is ensured to be completely sealed; the top plate 3 at the other side is fixed with a stainless steel plugging plate 13 by adopting a second expansion bolt 16 in the same way, a second rubber pad 12 with the thickness of 2mm is added between the horizontal section 11 of the L-shaped plate 9 and the plugging plate 13, the second rubber pad 12 is a non-cured rubber pad, and the non-cured rubber pad is fully adhered and compacted with the stainless steel plate by screwing the second expansion bolt 16;

6. waterproof: the two sides of the expansion joint 1 are internally coated with a poly-nano film, a cloth and a three-waterproof layer with the thickness of 3mm, and the two sides are uniformly coated with the waterproof layer 14;

7. restoring the facing: the indoor layer corresponding to the expansion joint 1 recovers the finish layer according to the field requirement.

To sum up, this scheme is directed at the condition that the expansion joint is located basement roof and wall body before, be provided with the water-stop layer that the mortar formed in the expansion joint with the range upon range of, the expansion filling layer that the non-solidification modified liquid rubber doped the expansion thing and by the inseparable first rubber pad of pressing into in the expansion joint of L template, still be provided with second rubber pad, stainless steel's shutoff board and waterproof layer under the L template, realize strong pressure leaking stoppage, provide stronger cohesion and water-proof effects, effectively resist outside stronger groundwater pressure, leaking stoppage effect is more reliable, avoid taking place the seepage once more after the construction.

Claims (8)

1. The strong-pressure plugging structure for the expansion joint of the basement roof is characterized in that the expansion joint (1) is positioned between a wall body (2) and the roof (3), a water stop belt (4) is arranged in the middle of the expansion joint (1), and an original filling layer (5) is arranged above the water stop belt (4);

the water stop belt is characterized in that a water stop layer (6), an expansion filling layer (7), a first rubber pad (8) and an L-shaped plate (9) are sequentially arranged below the water stop belt (4); the vertical section (10) of the L-shaped plate (9) is attached to the wall body (2) and fixedly connected with the wall body, and the horizontal section (11) of the L-shaped plate (9) is positioned in the expansion joint (1); the lower surface of the horizontal section (11) is flush with the lower surface of the top plate (3) and is provided with a second rubber pad (12) and a plugging plate (13) in a downward and orderly clung manner; the vertical section (10), the plugging plate (13), and the indoor side surfaces of the wall body (2) and the top plate (3) around the vertical section and the plugging plate are covered with waterproof layers (14).

2. The basement roof expansion joint strong-pressure plugging structure according to claim 1, wherein a first positioning hole is formed in the vertical section (10) of the L-shaped plate (9), a second positioning hole is formed in the wall body (2), and the first positioning hole corresponds to the second positioning hole and penetrates into the first expansion bolt (15).

3. The strong-pressure plugging structure of the expansion joint of the basement roof according to claim 1, wherein a third positioning hole is formed in the lower surface of the roof (3), a fourth positioning hole and a fifth positioning hole are respectively formed in the second rubber pad (12) and the plugging plate (13), and the third positioning hole, the fourth positioning hole and the fifth positioning hole correspond to each other and penetrate into a second expansion bolt (16).

4. The basement roof expansion joint strong-pressure plugging structure according to claim 1, wherein the portion of the inner side of the expansion joint (1) located below the water stop belt (4) and the indoor side surfaces of the wall body (2) and the roof adjacent to the expansion joint (1) are provided with cement reinforcing layers (17).

5. The strong-pressure plugging structure for the expansion joint of the basement roof according to any one of claims 1 to 4, wherein the width of the horizontal section (11) of the L-shaped plate (9) is matched with the width of the expansion joint (1), and the width of the first rubber pad (8) in a natural state is larger than the width of the expansion joint (1).

6. The strong-pressure plugging structure for expansion joints of a basement roof according to any one of claims 1 to 4, wherein the thickness of the water stop layer (6) is not less than 50mm, and the thickness of the expansion filling layer (7) is not less than 100mm.

7. The strong-pressure plugging structure for the expansion joint of the basement roof according to any one of claims 1 to 4, wherein the L-shaped plate (9) and the plugging plate (13) are stainless steel plates with the thickness not smaller than 3mm, the thickness of the first rubber pad (8) is 4mm, and the thickness of the second rubber pad (12) is 2mm.

8. The strong-pressure plugging structure for expansion joints of a basement roof according to any one of claims 1 to 4, wherein the thickness of the waterproof layer (14) is not less than 3mm, and the distance between the waterproof layer (14) and the two sides of the expansion joint (1) is not less than 300mm.

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