CN216809993U - Underground utility tunnel roof movement joint waterproof layer structure - Google Patents
Underground utility tunnel roof movement joint waterproof layer structure Download PDFInfo
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- CN216809993U CN216809993U CN202220483693.4U CN202220483693U CN216809993U CN 216809993 U CN216809993 U CN 216809993U CN 202220483693 U CN202220483693 U CN 202220483693U CN 216809993 U CN216809993 U CN 216809993U
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Abstract
The utility model discloses a waterproof layer structure for a deformation joint of a top plate of an underground comprehensive pipe gallery, which comprises the top plate, a protective layer, a metal bearing plate and a waterproof layer, wherein the metal bearing plate and the waterproof layer are arranged between the top plate and the protective layer; the metal pressure-bearing plate is laid on the surface of the deformation joint of the top plate, and the waterproof layer is arranged between the metal pressure-bearing plate and the protective layer; the waterproof layer comprises a waterproof base layer, a waterproof coating layer and a buffer layer which are sequentially arranged from bottom to top, and the buffer layer is used for protecting the waterproof coating layer; and a polyethylene foam rod is further arranged in the waterproof layer and is positioned right above the deformation joint and is wrapped by the waterproof layer. This scheme of adoption, the waterproof layer that has 3 waterproof construction can effectively prevent the further seepage of water, and waterproof layer non-deformable breaks, and water-proof effects is good, when avoiding backfilling or cross operation because of the construction damages the waterproof layer, has improved the buffer capacity of waterproof layer to external force and difference in temperature, and the hollowing problem obtains effectively suppressing between metal bearing plate and the waterproof layer, has avoided the cross-water condition to take place.
Description
Technical Field
The utility model relates to the field of deformation joint waterproof structures, in particular to a waterproof structure for a deformation joint of a top plate of an underground comprehensive pipe gallery.
Background
Utility tunnel builds the tunnel space in the underground, and its waterproof construction all has always been the key, to the waterproof design of movement joint of utility tunnel roof, generally includes following content: 1. a waterproof layer and three water stopping measures are arranged at the deformation joint; 2. a water stop belt is arranged in the middle of the deformation joint to form a closed waterproof line; 3. and a plastic paper isolation layer is arranged between the waterproof roll material layer and the plate at the outer side of the deformation joint. However, the existing waterproof structure for deformation joints always generates leakage problems, which are mainly caused by the following reasons: 1. the waterproof layer has no self-repairing capability, and is easy to damage and difficult to detect when constructed, backfilled or crossed, so that the hidden trouble of leakage is formed; 2. the water leakage problem is easily caused between the waterproof structures due to external force or temperature difference, so that the waterproof layers are invalid.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a waterproof layer structure for a deformation joint of a top plate of an underground comprehensive pipe gallery, by adopting the scheme, the waterproof layer with 3 layers of waterproof structures can effectively prevent water from further leaking, is not easy to deform and break, has good waterproof effect, improves the buffering capacity of the waterproof layer on external force and temperature difference while avoiding damaging the waterproof layer due to construction backfilling or cross operation, effectively restrains the hollowing problem between a metal bearing plate and the waterproof layer, and avoids the occurrence of water crossing.
The utility model is realized by the following technical scheme:
a waterproof layer structure for a deformation joint of a top plate of an underground comprehensive pipe gallery comprises the top plate, a protective layer, a metal pressure bearing plate and a waterproof layer, wherein the metal pressure bearing plate and the waterproof layer are arranged between the top plate and the protective layer;
the metal pressure-bearing plate is laid on the surface of the deformation joint of the top plate, and the waterproof layer is arranged between the metal pressure-bearing plate and the protective layer;
the waterproof layer comprises a waterproof base layer, a waterproof coating layer and a buffer layer which are sequentially arranged from bottom to top, and the buffer layer is used for protecting the waterproof coating layer;
and a polyethylene foam rod is further arranged in the waterproof layer and is positioned right above the deformation joint and is wrapped by the waterproof layer.
Compared with the prior art, the deformation joint waterproof structure can always generate leakage, the utility model provides the deformation joint waterproof layer structure of the top plate of the underground comprehensive pipe gallery, by adopting the scheme, the waterproof layer with the 3-layer waterproof structure can effectively prevent further leakage of water, particularly, deformation joints can be generated during construction of the top plate of the pipe gallery, in the construction process, filling materials need to be filled in the deformation joints, the protective layer is arranged at the top of the top plate of the pipe gallery, and a metal bearing plate is arranged above the top plate for preventing vegetation from damaging the top plate, wherein the metal bearing plate is root-piercing resistant and is laid on the surface of the deformation joints; the waterproof layer is arranged between the metal bearing plate and the protective layer and used for waterproofing, the waterproof layer comprises a three-layer structure and can effectively prevent further leakage of water, the three-layer structure comprises a waterproof base layer, a waterproof coating layer and a buffer layer which are sequentially arranged from bottom to top, the waterproof base layer is used for forming a basic waterproof layer on the metal bearing plate and can improve the adhesive force of the waterproof coating and the coating forming quality, the waterproof coating layer is formed by the waterproof coating, the buffer layer is used for protecting the waterproof coating layer and preventing the waterproof coating layer from being damaged when the protective layer is constructed, such as when a fine aggregate concrete protective layer is constructed; when the deformation joint deforms under stress, most energy can be absorbed by the buffer layers and the waterproof base layers of the upper layer and the lower layer under the extrusion action, so that the waterproof layer is not easy to deform and break, the waterproof effect is good, the waterproof layer is prevented from being damaged due to construction backfilling or cross operation, meanwhile, the polyethylene foam rod is combined, the buffer capacity of the waterproof layer to external force and temperature difference is improved, the hollowing problem between the metal bearing plate and the waterproof layer is effectively restrained, and the water mixing condition is avoided; wherein the polyethylene foam rod is preferably wrapped in a waterproof layer at an upper portion thereof.
Further optimizing, the device also comprises a middle-buried water stop belt arranged in the deformation joint; in order to prevent further leakage of the water body, in the scheme, when the protective layer and the waterproof layer are both ineffective, the water body can seep into the deformation joint, and the buried water stop belt is arranged in the deformation joint, so that the buried water stop belt can effectively stop the water body at the upper end of the buried water stop belt, and further the further leakage of the water body is cut off.
Further optimizing, the middle-buried water stop is a middle-buried steel-edged rubber water stop, and a middle hollow ring of the middle-buried water stop is superposed with the center line of the deformation joint and is arranged at a position which is one half of the thickness of the top plate; the waterproof belt is used for reducing the pulling deformation amplitude of the water stop belt while playing a waterproof role.
Further optimization, the middle-buried water stop belt is installed in a basin shape, and a basin-shaped opening is upward; the device is used for ensuring that air bubbles generated in the concrete are smoothly discharged when the concrete is poured and pounded.
The water-swelling rubber water stop strip is arranged in the deformation joint and is arranged at the lower end of the deformation joint; for forming last waterproof line, in this scheme, bury formula waterstop below in the water swelling rubber sealing rod sets up at the movement joint, in unexpected or extreme condition, for example, bury formula waterstop and pull down the extrusion of movement joint and destroy and when taking place the further seepage of water, the water swelling rubber sealing rod of water swelling of movement joint lower extreme absorbs water to expand and plug up the gap, from this as last waterproof line, the movement joint can be under unexpected or extreme condition, guarantees that the roof can not take place the problem that the water leaked, and the persistence is strong.
Further optimizing, the water-swelling rubber water stop strip is sealed through the sealing paste layer.
Further optimizing, the protective layer adopts the fine aggregate concrete protective layer.
Further optimizing, the waterproof basic unit adopts the pitch coating.
Further optimizing, the buffer layer adopts the asphalt coating.
Further optimize, metal bearing plate passes through self-tapping screw to be fixed in on the roof.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
the utility model provides a waterproof layer structure for a deformation joint of a top plate of an underground comprehensive pipe gallery, and by adopting the scheme, the waterproof layer with 3 layers of waterproof structures can effectively prevent water from further leaking, is not easy to deform and break, has good waterproof effect, improves the buffering capacity of the waterproof layer on external force and temperature difference while avoiding damaging the waterproof layer due to construction backfilling or cross operation, effectively restrains the hollowing problem between a metal bearing plate and the waterproof layer, and avoids the occurrence of water crossing; the waterproof cable has multiple waterproof lines, the cost is not obviously increased, the later maintenance is less, the waterproof cable can adapt to various underground environments, and the practicability is high.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the principles of the utility model. In the drawings:
fig. 1 is a schematic structural diagram of a waterproof layer structure of a deformation joint of a top plate of an underground comprehensive pipe gallery provided by the utility model.
Reference numbers and corresponding part names in the drawings:
1-protective layer, 2-buffer layer, 3-waterproof coating layer, 4-polyethylene foam rod, 5-waterproof base layer, 6-metal bearing plate, 7-top plate, 8-deformation joint, 9-buried water stop, 10-water-swelling rubber water stop, 11-sealing paste layer and 12-filling material.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Examples
The embodiment provides a waterproof layer structure for a deformation joint of a top plate of an underground comprehensive pipe gallery, which comprises a top plate 7, a protective layer 1, a metal pressure-bearing plate 6 and a waterproof layer, wherein the metal pressure-bearing plate 6 and the waterproof layer are arranged between the top plate 7 and the protective layer 1 as shown in figure 1;
the metal pressure-bearing plate 6 is laid on the surface of the deformation joint 8 of the top plate 7, and the waterproof layer is arranged between the metal pressure-bearing plate 6 and the protective layer 1;
the waterproof layer comprises a waterproof base layer 5, a waterproof coating layer 3 and a buffer layer 2 which are sequentially arranged from bottom to top, and the buffer layer 2 is used for protecting the waterproof coating layer 3;
and a polyethylene foam rod 4 is further arranged in the waterproof layer, and the polyethylene foam rod 4 is positioned right above the deformation joint 8 and is wrapped by the waterproof layer.
Compared with the prior art, the deformation joint 8 waterproof structure can always generate leakage, the utility model provides the deformation joint 8 waterproof layer structure of the top plate 7 of the underground comprehensive pipe gallery, by adopting the scheme, the waterproof layer with the 3 layers of waterproof structures can effectively prevent water from further leaking, specifically, the deformation joint 8 can be generated during the construction of the top plate 7 of the pipe gallery, in the construction process, the filling material 12 needs to be filled in the deformation joint 8, the protective layer 1 is arranged at the top of the top plate 7 of the pipe gallery, the top plate 7 is damaged for preventing vegetation, the metal bearing plate 6 is arranged above the top plate 7, and the metal bearing plate 6 is resistant to root puncture and is laid on the surface of the deformation joint 8; a waterproof layer is further arranged between the metal bearing plate 6 and the protective layer 1 and used for water proofing, wherein the waterproof layer comprises a three-layer structure which can effectively prevent further leakage of water, the three-layer structure comprises a waterproof base layer 5, a waterproof coating layer 3 and a buffer layer 2 which are sequentially arranged from bottom to top, the waterproof base layer 5 is used for forming a basic waterproof layer on the metal bearing plate 6 and can improve the adhesive force of the waterproof coating and the coating forming quality, the waterproof coating layer 3 is formed by the waterproof coating, and the buffer layer 2 is used for protecting the waterproof coating layer 3 and preventing the waterproof coating layer 3 from being damaged when the protective layer 1 is constructed, such as when the fine aggregate concrete protective layer 1 is constructed; when the deformation joint 8 deforms under stress, most energy can be absorbed by the buffer layers 2 and the waterproof base layers 5 on the upper layer and the lower layer under the extrusion action, so that the waterproof layer is not easy to deform and break, the waterproof effect is good, the waterproof layer is prevented from being damaged due to construction backfilling or cross operation, meanwhile, the polyethylene foam rod 4 is combined, the buffer capacity of the waterproof layer on external force and temperature difference is improved, the hollowing problem between the metal bearing plate 6 and the waterproof layer is effectively restrained, and the water mixing condition is avoided; wherein the polyethylene foam rod 4 is preferably wrapped at its upper portion by a waterproof layer.
As a specific implementation mode for preventing further leakage of the water body, the water-saving device also comprises a buried water stop 9 arranged in the deformation joint 8; in this scheme, when protective layer 1 and waterproof layer all became invalid, the water can permeate in deformation joint 8, and owing to bury formula waterstop 9 in being equipped with in deformation joint 8, bury formula waterstop 9 and can effectively stop the water at its upper end, and then cut off the further seepage of water.
As a specific implementation mode for reducing the pulling deformation amplitude of the water stop, the buried water stop 9 is a buried steel-edged rubber water stop, and a middle hollow ring of the buried water stop 9 is superposed with the center line of the deformation joint 8 and is installed at a position half the thickness of the top plate 7; the waterproof device is used for reducing the pulling deformation amplitude of the buried water stop 9 while playing a waterproof role.
As a concrete implementation mode for ensuring smooth discharge of bubbles generated in concrete when the concrete is poured and pounded, the buried water stop 9 is installed in a basin shape, and the opening of the basin shape is upward.
As a specific implementation mode for forming the last waterproof line, the waterproof line further comprises a water-swelling rubber water stop strip 10 arranged in the deformation joint 8, wherein the water-swelling rubber water stop strip 10 is arranged at the lower end of the deformation joint 8; in this scheme, bury formula waterstop 9 below in water-swelling rubber sealing strip 10 sets up at movement joint 8, under unexpected or extreme condition, for example, bury formula waterstop 9 and pull down the extrusion of movement joint 8 and destroy and when taking place the further seepage of water, water-swelling rubber sealing strip 10 of movement joint 8 lower extreme absorbs water and expands and plug up the gap, from this as last waterproof line, movement joint 8 can be under unexpected or extreme condition, guarantee that roof 7 can not take place the problem of water leakage, the persistence is strong.
In some embodiments, the water-swellable rubber seal 10 is sealed by a layer of sealing paste 11.
In some embodiments, the protective layer 1 is a fine-grained concrete protective layer 1.
In some embodiments, the waterproof substrate 5 is coated with asphalt.
In some embodiments, breaker layer 2 is coated with asphalt.
In some embodiments, the metal pressure-bearing plate 6 is fixed to the top plate 7 by self-tapping screws.
The specific working principle of the scheme is as follows: when protective layer 1 receives the destruction and takes place the water seepage, the waterproof layer that has 3 layers of waterproof construction can effectively prevent the further seepage of water, and simultaneously, when deformation joint 8 stress deformation, the extrusion can be by the asphalt layer absorption most energy of lower floor, waterproof layer non-deformable breaks, water-proof effects is good, when avoiding backfilling or cross operation damage waterproof layer because of the construction, the buffer capacity of waterproof layer to external force and difference in temperature has been improved, the hollowing problem obtains effective containment between metal bearing plate 6 and the waterproof layer, it takes place to have avoided the cross-water condition. Further, when the protective layer 1 and the waterproof layer are both ineffective and water permeates into the deformation joint 8, the water can be effectively blocked at the upper end of the water due to the existence of the buried water stop 9, further leakage of the water is cut off, and the waterproof structure of the deformation joint 8 continuously plays a waterproof role. Simultaneously, in accident or extreme condition, for example, bury formula waterstop 9 and pull down by destruction and when taking place the further seepage of water under the extrusion of movement joint 8, the water-swelling rubber sealing strip 10 of the 8 lower extremes of movement joint absorbs water the inflation and stops up the gap, from this as last waterproof line, movement joint 8 can be in accident or extreme condition, guarantee that roof 7 can not take place the problem of water leakage, the persistence is strong, have the waterproof line of multichannel and the cost does not obviously increase, the later maintenance is few, can adapt to various underground environment, therefore, the clothes hanger is strong in practicability.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The waterproof layer structure for the deformation joint of the top plate of the underground comprehensive pipe gallery comprises a top plate (7) and a protective layer (1), and is characterized by further comprising a metal pressure bearing plate (6) and a waterproof layer, wherein the metal pressure bearing plate and the waterproof layer are arranged between the top plate (7) and the protective layer (1);
the metal pressure-bearing plate (6) is laid on the surface of the deformation joint of the top plate (7), and the waterproof layer is arranged between the metal pressure-bearing plate (6) and the protective layer (1);
the waterproof layer comprises a waterproof base layer (5), a waterproof coating layer (3) and a buffer layer (2) which are sequentially arranged from bottom to top, and the buffer layer (2) is used for protecting the waterproof coating layer (3);
still be equipped with polyethylene foam stick (4) in the waterproof layer, polyethylene foam stick (4) are located the movement joint directly over to by waterproof layer parcel.
2. The underground utility tunnel roof deformation joint waterproof layer structure of claim 1, further comprising a buried water stop (9) disposed in the deformation joint.
3. The underground comprehensive pipe gallery roof deformation joint waterproof layer structure of claim 2, characterized in that the buried water stop (9) is a buried steel-edged rubber water stop, and a middle hollow ring of the buried water stop (9) coincides with a center line of a deformation joint and is installed at a position half the thickness of the roof.
4. The underground comprehensive pipe gallery roof deformation joint waterproof layer structure of claim 2, wherein the buried water stop (9) is installed in a basin shape with an upward opening.
5. The waterproof layer structure for the deformation joint of the top plate of the underground comprehensive pipe gallery according to claim 1, further comprising a water-swelling rubber water stop strip (10) arranged in the deformation joint, wherein the water-swelling rubber water stop strip (10) is arranged at the lower end of the deformation joint.
6. The underground utility tunnel roof deformation joint waterproof layer structure of claim 5, characterized in that, the water-swelling rubber sealing rod (10) is sealed through a sealing paste layer (11).
7. The underground utility tunnel roof deformation joint waterproof layer structure of claim 1, characterized in that, the protective layer (1) adopts a fine stone concrete protective layer.
8. The underground utility tunnel roof deformation joint waterproof layer structure of claim 1, characterized in that, asphalt coating is adopted to waterproof basic unit (5).
9. The underground utility tunnel roof deformation joint waterproof layer structure of claim 1, characterized in that, the buffer layer (2) adopts the pitch coating.
10. The underground utility tunnel roof deformation joint waterproof layer structure of claim 1, characterized in that, the metal bearing plate (6) is fixed on the roof (7) through self-tapping screws.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220483693.4U CN216809993U (en) | 2022-03-04 | 2022-03-04 | Underground utility tunnel roof movement joint waterproof layer structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220483693.4U CN216809993U (en) | 2022-03-04 | 2022-03-04 | Underground utility tunnel roof movement joint waterproof layer structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115387396A (en) * | 2022-09-03 | 2022-11-25 | 福建金鼎建筑发展有限公司 | Underground waterproof engineering structure |
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- 2022-03-04 CN CN202220483693.4U patent/CN216809993U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115387396A (en) * | 2022-09-03 | 2022-11-25 | 福建金鼎建筑发展有限公司 | Underground waterproof engineering structure |
| CN115387396B (en) * | 2022-09-03 | 2023-10-27 | 福建金鼎建筑发展有限公司 | Construction method of underground waterproof engineering structure |
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