CN213572039U - Improve utility tunnel structure expansion joint department waterproof performance's structure - Google Patents
Improve utility tunnel structure expansion joint department waterproof performance's structure Download PDFInfo
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- CN213572039U CN213572039U CN202021400358.0U CN202021400358U CN213572039U CN 213572039 U CN213572039 U CN 213572039U CN 202021400358 U CN202021400358 U CN 202021400358U CN 213572039 U CN213572039 U CN 213572039U
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- asphalt
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- 239000004567 concrete Substances 0.000 claims abstract description 84
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 244000025254 Cannabis sativa Species 0.000 claims abstract description 15
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims abstract description 15
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims abstract description 15
- 235000009120 camo Nutrition 0.000 claims abstract description 15
- 235000005607 chanvre indien Nutrition 0.000 claims abstract description 15
- 239000011487 hemp Substances 0.000 claims abstract description 15
- 239000012528 membrane Substances 0.000 claims abstract description 13
- 238000004078 waterproofing Methods 0.000 claims abstract description 13
- 229920002635 polyurethane Polymers 0.000 claims abstract description 8
- 239000004814 polyurethane Substances 0.000 claims abstract description 8
- 229920001021 polysulfide Polymers 0.000 claims abstract description 6
- 239000005077 polysulfide Substances 0.000 claims abstract description 6
- 150000008117 polysulfides Polymers 0.000 claims abstract description 6
- 239000010410 layer Substances 0.000 claims description 63
- 229920001971 elastomer Polymers 0.000 claims description 29
- 239000011384 asphalt concrete Substances 0.000 claims description 19
- 239000010426 asphalt Substances 0.000 claims description 15
- 239000011241 protective layer Substances 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 239000006260 foam Substances 0.000 claims description 8
- 239000000945 filler Substances 0.000 abstract description 3
- 230000008595 infiltration Effects 0.000 abstract description 2
- 238000001764 infiltration Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 23
- 238000010276 construction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 5
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- 230000001070 adhesive effect Effects 0.000 description 3
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- 239000004575 stone Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
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- 239000011148 porous material Substances 0.000 description 2
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- 229920005830 Polyurethane Foam Polymers 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
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Abstract
The utility model discloses an improve structure of utility tunnel structure expansion joint department waterproof performance, include: concrete cushion and concrete floor, concrete floor middle part has along longitudinal extension's expansion joint, the concrete cushion surface of expansion joint below has the arc recess, the faying face of concrete cushion and concrete floor is provided with waterproofing membrane, waterproofing membrane upper portion is provided with the concrete protection layer, the concrete floor is located concrete protection layer upper portion, have from bottom to top in proper order in the expansion joint of concrete protection layer top: hemp silk pitch layer, bubble polyurethane layer and low modulus polysulfide caulk paste layer solve among the above-mentioned prior art expansion joint filler and do not have expansibility and ductility, can't effectively stagnant water when leading to the infiltration to when meetting the expansion joint flexible volume great, can be because of the too big waterproofing membrane damage that leads to waterproof inefficacy of causing of stretch-draw strength.
Description
Technical Field
The utility model belongs to the building field especially relates to an improve structure of utility tunnel structure expansion joint department waterproof performance.
Background
The expansion joint of the bottom plate of the traditional comprehensive pipe rack is constructed in the following mode: cushion layer → waterproof coiled material → waterproof protective layer → concrete bottom plate of the comprehensive pipe gallery. The cushion layer and the waterproof protective layer are integrally poured, and an expansion joint area and a non-expansion joint area are not distinguished; the waterproof coiled material has no coiled material expansion control measure at the expansion joint; the middle of the bottom plate is provided with a middle-buried water stop belt, and the middle of the bottom plate is provided with an extruded sheet filler which only has the filling and isolating functions of an expansion joint and has no expansibility and ductility, so that an effective water blocking function cannot be provided when water seepage occurs, and a waterproof function is not realized; the expansion joints of the bottom plate of the comprehensive pipe rack are only waterproof by waterproof coiled materials and a middle-buried water stop belt, so that the hidden danger of water leakage is great; traditional basement bottom plate expansion joint department structure can cause waterproofing membrane damaged because of the tensioning strength is too big when meetting the flexible volume of expansion joint great, makes waterproofing membrane reduce and even loses waterproof performance, so this kind of waterproof construction can't satisfy the waterproof demand of expansion joint.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an improve utility tunnel structure expansion joint department waterproof performance's structure solves among the above-mentioned prior art expansion joint filler and does not have expansibility and ductility, can't effectively stagnant water when leading to the infiltration to when meetting the flexible volume of expansion joint great, can lead to the technical problem of waterproof inefficacy because of stretch-draw strength is too big to cause waterproofing membrane damaged.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides an improve utility tunnel structure expansion joint department waterproof performance's structure, includes: concrete cushion and concrete floor, concrete floor middle part has along longitudinal extension's expansion joint, the concrete cushion surface of expansion joint below has the arc recess, the faying face of concrete cushion and concrete floor is provided with waterproofing membrane, waterproofing membrane upper portion is provided with the concrete protection layer, the concrete floor is located concrete protection layer upper portion, have from bottom to top in proper order in the expansion joint of concrete protection layer top: a hemp thread asphalt layer, a foam polyurethane layer and a low modulus polysulfide caulk layer.
The utility model discloses an improve structure of utility tunnel structure expansion joint department waterproof performance, the concrete cushion includes: the fine aggregate concrete cushion layer is located at the vertical direction lower part of the expansion joint, and the fine aggregate concrete cushion layer is located on two sides of the asphalt concrete cushion layer.
The utility model discloses an improve comprehensive pipe gallery structure expansion joint department waterproof performance's structure, the faying face of pea gravel concreten cushion and asphalt concreten cushion all is provided with the wire net, the wire net of asphalt concreten cushion both sides is the splayed setting.
The utility model discloses an improve comprehensive pipe rack structure expansion joint department waterproof performance's structure, be provided with the PE foam stick in the arc recess.
The utility model discloses an improve structure of utility tunnel structure expansion joint department waterproof performance, the combination department of concrete bottom plate and concrete protective layer is provided with outer formula rubber waterstop, outer formula rubber waterstop width direction of pasting uses the width direction central line at expansion joint as the central line, outer formula rubber waterstop of pasting extends along the expansion joint both sides.
The utility model discloses an improve comprehensive pipe gallery structure expansion joint department waterproof performance's structure, numb silk pitch layer both sides are provided with fast easy binding off net
The utility model discloses an improve comprehensive pipe gallery structure expansion joint department waterproof performance's structure, the faying face department on numb silk pitch layer and bubble polyurethane layer buries formula steel limit rubber waterstop in being provided with.
The utility model discloses an improve structure of utility tunnel structure expansion joint department waterproof performance, the waterstop of the formula steel limit rubber waterstop both sides of burying is at 15-20 degrees with the horizontal direction contained angle in.
The utility model discloses the beneficial effect who produces is: the utility model provides a structure for improving waterproof performance of expansion joint of comprehensive pipe gallery structure, which enables a concrete cushion to be formed by combining an asphalt concrete cushion and a fine stone concrete cushion, and has high ductility to prevent a waterproof coiled material from being damaged due to concrete cracking when the expansion amount of the pipe gallery structure is large because the waterproof performance of the expansion joint is enhanced by the waterproof performance of the asphalt concrete cushion; the steel wire mesh is arranged at the joint of the asphalt concrete cushion and the fine stone concrete cushion, so that stress concentration caused by different materials is reduced, and cracks generated at the joint of the cushions made of different materials are reduced; by the method of laying the waterproof coiled material at the expansion joint in a vacant way, the coiled material is laid and pasted at the deformation joint along the arc-shaped groove, so that the expansion amount of the waterproof coiled material at the expansion joint is reserved, the construction quality of the waterproof layer is improved, and the service life of the waterproof layer is prolonged; the adhesive rubber waterstop is arranged, and the waterproof reinforcing layer is additionally arranged below the adhesive rubber waterstop, so that the friction force between the external adhesive rubber waterstop and the concrete protective layer is reduced while the waterproof performance is enhanced, and the probability of damage caused by overlarge friction force between the waterproof coiled material and the concrete when the expansion joint is stretched is reduced; fill the hemp thread pitch layer through burying formula steel limit rubber waterstop lower part in, utilize the outstanding waterproof nature of hemp thread pitch layer and the waterproof performance of ductility reinforcing expansion joint department, the net parcel of closing up soon with easy in hemp thread pitch layer both sides, the purpose makes things convenient for the construction of hemp thread pitch layer crack, pour the in-process at concrete bottom plate simultaneously and pour in the space of pore concrete thick liquid stream income hemp thread pitch layer through the net of easily closing up soon, ensure that expansion joint department does not keep the space, improve the wholeness and the waterproof performance of expansion joint department.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, a structure for improving waterproof performance of utility tunnel structure expansion joint department includes: concrete cushion and concrete floor 10, concrete floor 10 middle part has along longitudinal extension's expansion joint 16, the concrete cushion surface of expansion joint 16 below has arc recess 3, the faying face of concrete cushion and concrete floor 10 is provided with waterproofing membrane 5, 5 upper portions of waterproofing membrane are provided with concrete protective layer 6, concrete floor 10 is located 6 upper portions of concrete protective layer, have from bottom to top in proper order in the expansion joint 16 of concrete protective layer 6 top: a layer of hemp thread asphalt 12, a layer of foamed polyurethane 14 and a layer of low modulus polysulfide caulk 15.
In a preferred embodiment of the present invention, the concrete cushion layer includes: fine aggregate concrete bed course 1 and asphalt concrete bed course 2, asphalt concrete bed course 2 is located the vertical direction lower part at expansion joint 16, fine aggregate concrete bed course 1 is located asphalt concrete bed course 2 both sides.
The utility model discloses an in the preferred embodiment, the faying face of pea gravel concrete bed course 1 and asphalt concrete bed course 2 all is provided with wire net 4, the wire net 4 of asphalt concrete bed course 2 both sides is the splayed setting.
In the preferred embodiment of the present invention, a PE foam rod 7 is disposed in the arc-shaped groove 3.
The utility model discloses an in the preferred embodiment, the junction of concrete bottom plate 10 and concrete protection layer 6 is provided with outer paste formula rubber waterstop 8, 8 width direction of outer paste formula rubber waterstop use the width direction central line of expansion joint 16 as the central line, outer paste formula rubber waterstop 8 extends along 16 both sides of expansion joint.
In the preferred embodiment of the present invention, the two sides of the hemp thread asphalt layer 12 are provided with the fast and easy closing net 13
In the preferred embodiment of the present invention, the joint surface between the hemp thread asphalt layer 12 and the polyurethane foam layer 14 is provided with a middle-buried steel-edged rubber water stop 11.
In the preferred embodiment of the utility model, the included angle between the water stop belts on the two sides of the buried steel-edged rubber water stop belt 11 and the horizontal direction is 15-20 degrees.
The construction method comprises the following steps:
firstly, pouring a concrete cushion. The thickness of the cushion layer is 100mm, the concrete cushion layer is formed by combining an asphalt concrete cushion layer 2 and a fine stone concrete cushion layer 1, wherein the asphalt concrete cushion layer 2 is adopted within the width range of 1000mm below the expansion joint 16, the waterproof performance of the expansion joint is enhanced by utilizing the waterproofness of the asphalt concrete cushion layer 2, and meanwhile, the waterproof coiled material is prevented from being damaged due to concrete cracking when the expansion amount of the pipe gallery structure is large by utilizing the high ductility of the asphalt concrete cushion layer 2; when the asphalt concrete cushion 2 is poured, an arc-shaped groove 3 is pressed by a PVC pipe right below the expansion joint 16, and the diameter of the PVC pipe is about 30 mm; the other positions bed course adopts fine aggregate concrete bed course 1, and bituminous concrete bed course 2 sets up wire net 4 with 1 handing-over department of fine aggregate concrete bed course, and the purpose reduces because of the different stress concentration that cause of material, reduces the crack that different material bed courses handing-over department produced.
And secondly, paving and pasting the waterproof coiled material 5, wherein the waterproof coiled material 5 at the deformation joint adopts a blank paving method, and the coiled material is paved and pasted along the pressed arc-shaped groove 3 at the deformation joint.
And thirdly, pouring the concrete protection layer 6, wherein the thickness of the concrete protection layer 6 is 50mm, placing a PE foam rod 7 at the deformation joint along the pressed arc-shaped groove 3 before pouring the concrete protection layer 6, and fitting the PE foam rod 7 with the arc-shaped groove 3.
The fourth step, 300mm wide outer formula rubber waterstop 8 is established in the expansion joint 16 outside, one waterproof enhancement layer 9 of outer formula rubber waterstop 8 below increase, waterproof enhancement layer 9 material is the thick polyurethane of 3mm, waterproof enhancement layer 9 width 400-500 mm is wide, reduce outer formula rubber waterstop 8 and the frictional force of below concrete structure when the purpose is reinforcing waterproof performance, prevent to cause the protective layer to damage and then destroy waterproofing membrane because of expansion joint 16 department's piping lane structure flexible volume is too big.
And fifthly, pouring a concrete bottom plate 10 on one side, wherein the thickness of the concrete bottom plate 10 of the basement comprehensive pipe gallery is generally 500mm, the middle part of the bottom plate structure is provided with a 350mm middle embedded type steel edge rubber water stop 11 which is arranged in the middle of the concrete bottom plate 10, and the included angle between each side water stop of the middle embedded type steel edge rubber water stop 11 and the horizontal is controlled between 15 degrees and 20 degrees.
Sixthly, bury 11 lower parts of formula steel limit rubber waterstop and pack numb silk pitch layer 12 in, utilize the waterproof performance of the outstanding waterproof nature of numb silk pitch layer 12 and ductility reinforcing expansion joint department, numb silk pitch layer both sides are with the net 13 parcel that easily closes up soon, the purpose makes things convenient for numb silk pitch layer 13 crack construction, pour the in-process at concrete bottom plate 10 simultaneously and pour in the space of the pore concrete thick liquid stream income numb silk pitch layer 13 of net 13 through easily closing up soon, ensure that the expansion joint department does not keep the space, improve the wholeness and the waterproof performance of expansion joint department.
And seventhly, pouring the concrete bottom plate 10 on the other side.
And step eight, filling the upper part of the middle-buried steel-edged rubber water stop band 11 with a foamed polyurethane layer 14, and simultaneously arranging a 20mm caulking groove, and filling the lower-modulus polysulfide caulking paste layer 15 with a sealing reinforcing waterproof layer.
The key points of the process are as follows:
(1) the arc-shaped groove needs to be coated for the second time after the concrete is initially set, and the edges and corners cannot be left so as to avoid damaging the waterproof roll 5;
(2) the waterproof coiled material 5 is rolled in time after being paved and pasted, and air seen by the coiled material is exhausted;
(3) after the waterproof coiled material 5 is paved and attached along the pressed arc-shaped groove 3 at the deformation joint, an iron bar or a large-diameter steel bar is used for compacting, and the waterproof coiled material 5 is formed into an arc shape in the arc-shaped groove 3 by utilizing the memory property of the material;
(4) the 11 lower parts of the buried steel-edged rubber waterstop are filled with the hemp thread asphalt layer 12, and the lumpy asphalt is firstly put into an oil drum to be boiled to a melting state, and then yellow sand is added, and the asphalt yellow sand proportion is as follows: 1:1, uniformly stirring and then filling the mixture into the expansion joint 16, wherein the height of the mixture is 100mm, and the rest expansion joint 16 is filled and filled with hemp threads which are fully dipped with asphalt;
(5) before asphalt is poured into the expansion joint, the externally-attached rubber water stop 8 is provided with a heat-insulating layer, so that the physical performance of the externally-attached rubber water stop 8 is not damaged when the asphalt is poured for filling the joint;
(6) the depth of the caulking groove is ensured to be not less than 20mm, and the working performance of the low-modulus polysulfide caulking paste layer 15 is ensured.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.
Claims (8)
1. The utility model provides an improve utility tunnel structure expansion joint department waterproof performance's structure which characterized in that includes: concrete cushion and concrete floor (10), concrete floor (10) middle part has along longitudinal extension's expansion joint (16), the concrete cushion surface of expansion joint (16) below has arc recess (3), the faying face of concrete cushion and concrete floor (10) is provided with waterproofing membrane (5), waterproofing membrane (5) upper portion is provided with concrete protective layer (6), concrete floor (10) are located concrete protective layer (6) upper portion, have in proper order from bottom to top in expansion joint (16) of concrete protective layer (6) top: a hemp thread asphalt layer (12), a foam polyurethane layer (14) and a low modulus polysulfide caulk layer (15).
2. The structure of claim 1, wherein the concrete cushion comprises: fine aggregate concrete bed course (1) and asphalt concrete bed course (2), asphalt concrete bed course (2) are located the vertical direction lower part of expansion joint (16), fine aggregate concrete bed course (1) are located asphalt concrete bed course (2) both sides.
3. The structure for improving the waterproof performance of the expansion joint of the comprehensive pipe gallery structure as claimed in claim 2, wherein the bonding surfaces of the fine aggregate concrete cushion layer (1) and the asphalt concrete cushion layer (2) are provided with steel wire meshes (4), and the steel wire meshes (4) on two sides of the asphalt concrete cushion layer (2) are arranged in a splayed manner.
4. The structure for improving the waterproof performance of the expansion joint of the comprehensive pipe rack structure as claimed in claim 3, wherein a PE foam rod (7) is arranged in the arc-shaped groove (3).
5. The structure for improving the waterproof performance of the expansion joint of the comprehensive pipe rack structure according to claim 3, wherein an externally attached rubber water stop (8) is arranged at the joint of the concrete bottom plate (10) and the concrete protective layer (6), the width direction of the externally attached rubber water stop (8) takes the width direction central line of the expansion joint (16) as a central line, and the externally attached rubber water stop (8) extends along two sides of the expansion joint (16).
6. The structure for improving the waterproof performance of the expansion joint of the comprehensive pipe rack structure as claimed in claim 3, wherein the fast and easy closing-up nets (13) are arranged on two sides of the hemp thread asphalt layer (12).
7. The structure for improving the waterproof performance of the expansion joint of the comprehensive pipe gallery structure as claimed in claim 6, wherein a middle-buried steel-edged rubber water stop (11) is arranged at the joint surface of the hemp thread asphalt layer (12) and the foam polyurethane layer (14).
8. The structure for improving the waterproof performance of the expansion joint of the comprehensive pipe rack structure as claimed in claim 7, wherein the included angle between the water stop belts on the two sides of the buried steel-edged rubber water stop belt (11) and the horizontal direction is 15-20 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021400358.0U CN213572039U (en) | 2020-07-16 | 2020-07-16 | Improve utility tunnel structure expansion joint department waterproof performance's structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021400358.0U CN213572039U (en) | 2020-07-16 | 2020-07-16 | Improve utility tunnel structure expansion joint department waterproof performance's structure |
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| Publication Number | Publication Date |
|---|---|
| CN213572039U true CN213572039U (en) | 2021-06-29 |
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| CN202021400358.0U Active CN213572039U (en) | 2020-07-16 | 2020-07-16 | Improve utility tunnel structure expansion joint department waterproof performance's structure |
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| Country | Link |
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| CN (1) | CN213572039U (en) |
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2020
- 2020-07-16 CN CN202021400358.0U patent/CN213572039U/en active Active
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