CN109083196B - Utility tunnel composite node structure - Google Patents
Utility tunnel composite node structure Download PDFInfo
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- CN109083196B CN109083196B CN201811158829.9A CN201811158829A CN109083196B CN 109083196 B CN109083196 B CN 109083196B CN 201811158829 A CN201811158829 A CN 201811158829A CN 109083196 B CN109083196 B CN 109083196B
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- utility
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- 239000000843 powder Substances 0.000 claims description 23
- 238000002955 isolation Methods 0.000 claims description 18
- 239000010865 sewage Substances 0.000 claims description 17
- 239000004567 concrete Substances 0.000 claims description 16
- 229920001971 elastomer Polymers 0.000 claims description 14
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- 150000004645 aluminates Chemical class 0.000 claims description 13
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 13
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- 239000008117 stearic acid Substances 0.000 claims description 13
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 11
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- 239000002033 PVDF binder Substances 0.000 claims description 10
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- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 7
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- JBTXGEJRJCNRLU-UHFFFAOYSA-N [2-(dihydroxyphosphanyloxymethyl)-3-hydroxy-2-(hydroxymethyl)propyl] dihydrogen phosphite Chemical group OP(O)OCC(CO)(CO)COP(O)O JBTXGEJRJCNRLU-UHFFFAOYSA-N 0.000 claims description 5
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- 238000000227 grinding Methods 0.000 claims description 5
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- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 5
- 239000011241 protective layer Substances 0.000 claims description 5
- 238000007873 sieving Methods 0.000 claims description 5
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- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 claims description 3
- 239000002737 fuel gas Substances 0.000 abstract description 2
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Classifications
-
- 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
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
-
- 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
Abstract
The invention discloses a utility tunnel combined node structure, and belongs to the technical field of utility tunnels. The utility tunnel combined node structure comprises a fuel gas cabin, a utility cabin and an electric cabin which are arranged in the tunnel in parallel, wherein a conversion layer is arranged above the utility cabin and the electric cabin and comprises a horizontally arranged equipment room, a ventilation conversion layer and a feeding conversion layer, escape openings, first ventilation openings and first feeding openings are respectively arranged at the tops of the equipment room, the ventilation conversion layer and the feeding conversion layer, the equipment room and the ventilation conversion layer are blocked by a normally closed fireproof door, and the ventilation conversion layer and the feeding conversion layer are blocked by a first fireproof rolling shutter door; the comprehensive cabin and the electric power cabin are respectively divided into two fireproof subareas, a second ventilation opening is formed in the top of each fireproof subarea, and four second ventilation openings are communicated with the first ventilation opening through the ventilation conversion layer. The invention effectively reduces the quantity of the ventilation openings and the material feeding openings exposed out of the ground, reduces the protrusion of the ground, improves the traffic and beautifies the environment.
Description
Technical Field
The invention relates to the technical field of underground comprehensive pipe racks, in particular to a comprehensive pipe rack combined node structure.
Background
The utility tunnel is the utility tunnel of the underground city pipeline. The method is characterized in that a tunnel space is built underground in a city, various engineering pipelines such as electric power, communication, fuel gas, heat supply, water supply and drainage and the like are integrated, a special overhaul port, a lifting port and a monitoring system are arranged, unified planning, unified design, unified construction and management are implemented, and the method is an important infrastructure and a lifeline for guaranteeing city operation.
However, in the current comprehensive pipe rack, the node structure is generally a single-function node, and the combination of the nodes with multiple functions is not considered, and the ventilation openings of each cabin of the current comprehensive pipe rack are separately designed and all expose the ground, so that the ventilation openings and the material feeding openings which expose the ground are more, the traffic is influenced, and meanwhile, certain influence is caused on the surrounding environment.
Disclosure of Invention
Aiming at the problems, the invention aims to provide a comprehensive pipe rack combined node structure so as to effectively reduce the number of ventilation openings and the number of feeding openings exposing the ground, reduce the protrusion of the ground, improve traffic and beautify the surrounding environment.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a utility tunnel combination node structure, includes bottom plate, medium plate and roof that from bottom to top set gradually, be the piping lane mainline between bottom plate and the medium plate, bottom plate and medium plate pass through the side wall connection of piping lane mainline, be the conversion layer between medium plate and the roof, medium plate and roof pass through the side wall connection of conversion layer, including gas cabin, utility cabin and the electric power cabin that set up side by side in the piping lane mainline, the conversion layer is located directly over utility cabin and the electric power cabin, the conversion layer includes between equipment, ventilation conversion layer and the material conversion layer that throws that the level set up, the top of equipment, ventilation conversion layer and material conversion layer is equipped with escape opening, first vent and first material mouth respectively, through normally closed separation between equipment with prevent fire door ventilation conversion layer, ventilation conversion layer with pass through first fire prevention rolling shutter separation between the material conversion layer; the comprehensive cabin and the electric power cabin are respectively divided into two fireproof subareas, a second ventilation opening is formed in the top of each fireproof subarea, and the four second ventilation openings are communicated with the first ventilation opening through the ventilation conversion layer; and each second ventilation opening is provided with a fan, and a base of each fan is provided with a remote control electric smoke-proof fire-proof valve.
Further, the top of the first ventilation opening is a granite veneered surface, a rain and snow-proof shutter and an insect-proof net are arranged around the first ventilation opening, and the rain and snow-proof shutter is positioned outside the insect-proof net; the upper cover of the first feeding port is provided with a prefabricated cover plate; the escape opening is provided with an anti-falling net and an automatic hydraulic well lid capable of being remotely controlled, and the anti-falling net is positioned below the automatic hydraulic well lid.
Further, a ladder stand is arranged in the comprehensive cabin or the electric cabin, a through hole is formed in the middle plate and located at the bottom of the equipment room, a first light fireproof cover plate is further covered on the through hole, and the ladder stand penetrates through the first light fireproof cover plate and extends to the escape opening.
Further, a second feeding port and a third feeding port are arranged at the bottom of the feeding conversion layer at intervals, the second feeding port is communicated with the comprehensive cabin, and the third feeding port is communicated with the electric cabin; and the second feeding port and the third feeding port are respectively covered with a light fireproof cover plate.
Further, a second fireproof rolling shutter door used for dividing the feeding conversion layer into a first fireproof interval and a second fireproof interval is arranged in the feeding conversion layer, the second feeding port is located at the bottom of the first fireproof interval, and the third feeding port is located at the bottom of the second fireproof interval.
Further, the utility tunnel combined node structure further comprises a sewage cabin arranged in the pipe tunnel, the sewage cabin is arranged in parallel with the gas cabin, the utility cabin and the electric power cabin, the conversion layer is arranged right above the utility cabin, the electric power cabin and the sewage cabin, the sewage cabin is also divided into two fireproof subareas, the top of each fireproof subarea is also provided with a second air vent, and the second air vents are all communicated with the first air vents through the ventilation conversion layer; the bottom of the feeding conversion layer is also provided with a fourth feeding port which is communicated with the sewage cabin.
Further, a wet-laid waterproof coiled material and a fine stone concrete protective layer are paved on the side wall of the conversion layer.
Further, the wet-laid waterproof coiled material comprises a bottom isolating membrane layer, a material layer, an adhesive layer positioned above and below the material layer and a top isolating membrane layer; the adhesive layer is mainly prepared from the following components in parts by weight: 28-55 parts of modified asphalt, 8-15 parts of plasticizer, 6-12 parts of antioxidant and 5-12 parts of flame retardant;
the modified asphalt is mainly prepared from the following raw materials in parts by weight: 16-32 parts of asphalt, 15-30 parts of rubber powder, 15-25 parts of epoxy resin, 10-18 parts of organic silicon emulsion, 6-12 parts of polyacrylate, 4-10 parts of stearic acid, 4-8 parts of aluminate, 3-8 parts of polyvinyl alcohol, 2-6 parts of alumina and 1-5 parts of superfine calcium carbonate.
Further, the preparation method of the modified asphalt comprises the following steps:
(1) Weighing the raw materials in parts by weight;
(2) Placing asphalt into a stirring tank, heating to 130-140 ℃, adding rubber powder, epoxy resin, organosilicon emulsion, polyacrylate and stearic acid, heating to 160-175 ℃, and stirring for 1-2 hours to obtain a melt;
(3) Grinding aluminum oxide, sieving with a 300-mesh sieve, and uniformly mixing with superfine calcium carbonate to obtain inorganic powder;
(4) Adding the inorganic powder, the aluminate and the polyvinyl alcohol into the melt, mixing and stirring, adding PVDF while stirring, and uniformly stirring to obtain the PVDF-based composite material.
Further, the plasticizer is butyl naphthenate or citrate, the antioxidant is pentaerythritol bisphosphite, and the flame retardant is aluminum hydroxide.
In the invention, the material layer is two or more than two of a high polymer film layer containing a galvanized layer, a high polymer laminated film layer, a thermoplastic elastomer layer, a polyester fiber cloth glass fiber cloth or a grid cloth layer; the bottom isolation film layer and the top isolation film layer are polyethylene films, polyvinyl chloride films or polyester films.
In the modified asphalt of the wet-laid waterproof coiled material, polyacrylate can form a film with good luster and water resistance, is firmly bonded, is not easy to peel off, is flexible and elastic at room temperature, has good weather resistance, and has low tensile strength. Stearic acid is a widely used vulcanization activator in natural gums, synthetic rubbers, and latexes, and can also be used as a plasticizer, softener, waterproofing agent, and the like. The organosilicon emulsion is an oil-in-water defoamer, has good heat resistance and freezing resistance, and has good water repellency and waterproof effect.
The aluminate is an adhesion promoter or a surface treatment agent, can promote adhesion and has a catalytic effect; improving dispersion and rheological properties; the impact strength is improved, and brittleness is not generated; the mechanical property is improved, the filling quantity is improved, and the cost is reduced; preventing phase separation, corrosion resistance, oxidation resistance, flame retardance and the like. In addition, the aluminate can also improve the compatibility of inorganic powder and plastics. Based on the effect of the component, the invention tries to apply the component to the modification of asphalt, and no report on the application of the component to modified asphalt is currently seen.
The superfine calcium carbonate has obvious effects in increasing the volume of plastic products, reducing the cost, improving the stability, the hardness and the rigidity, improving the processability of plastics, improving the heat resistance, improving the light dispersion, scratch resistance and smoothness of plastics, toughening effect on notch impact strength, viscosity in the mixing process and the like. Based on the effect of the component, the invention tries to apply the component to the modification of asphalt, and no report on the application of the component to modified asphalt is currently seen.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
(1) The utility tunnel combined node structure is characterized in that a conversion layer is added on the basis of the existing tunnel, equipment rooms, ventilation conversion layers and feeding conversion layers are arranged on the conversion layer in parallel, escape openings, total ventilation openings and total feeding openings are respectively arranged at the tops of the equipment rooms, the ventilation conversion layers and the feeding conversion layers in a corresponding mode, namely, the escape openings, the total ventilation openings and the total feeding openings are designed at the same node to form a combined node structure, the design is convenient, the construction is facilitated, and a good guiding effect and a reference effect are provided for other test point projects and subsequent tunnel projects. In the combined node structure, all fireproof subareas of each cabin (except the gas cabin) share one main ventilation opening through designing the ventilation conversion layer, so that the number of ventilation openings exposing the ground can be effectively reduced, the protrusions on the ground are reduced, the traffic is improved, and the surrounding environment is beautified. Meanwhile, the material feeding conversion layer is designed, so that the material feeding can be carried out through a total material feeding port exposed out of the ground, and the material feeding conversion layer is transferred to each cabin, and the material feeding ports (such as a second material feeding port and a third material feeding port) of each cabin are fed, so that the number of the material feeding ports exposed out of the ground can be greatly reduced, the protrusion of the ground is further reduced, the traffic is improved, and the surrounding environment is beautified.
(2) According to the utility tunnel combined node structure, the side wall of the conversion layer is paved with the wet-laid waterproof coiled material, the fine stone concrete protective layer and the like, the paved wet-laid waterproof coiled material comprises the bottom isolation membrane layer, the material layer, the adhesive layer positioned above and below the material layer and the top isolation membrane layer, in the modified asphalt of the adhesive layer, the organic silicon emulsion, the polyacrylate and the stearic acid are added into the main materials consisting of asphalt, rubber powder and resin, and the emulsion formed after the organic silicon emulsion, the stearic acid and the polyacrylate are optimally mixed improves the tensile property of the polyacrylate, improves the viscosity of the modified asphalt, and further improves the waterproof property and the durability of the paved wet-laid waterproof coiled material; the inorganic powder composed of alumina and superfine calcium carbonate is added, so that not only is the filling rate and hardness of the modified asphalt properly improved, but also the toughening effect of the impact strength and the viscous flow property in the processing process are improved; finally, through adding aluminate, the adhesion of all raw material components is promoted, and the impact strength of the modified asphalt is further improved. Through the interaction of the components, the performances of the adhesive layer, such as adhesiveness, durability and the like, are finally improved, so that each layer of material in the wet-laid waterproof coiled material has good adhesiveness, the wet-laid waterproof coiled material has good mechanical properties, and the waterproof property and durability of the wet-laid waterproof coiled material are improved.
Drawings
FIG. 1 is a top view of a top plate in a utility tunnel assembly node structure according to embodiment 1 of the present invention;
FIG. 2 is a top view of a middle plate in a utility tunnel assembly node structure according to embodiment 1 of the present invention;
FIG. 3 is a top view of a base plate in a utility tunnel assembly node structure according to embodiment 1 of the present invention;
FIG. 4 is a sectional view of a combined node structure of a utility tunnel according to embodiment 1 of the present invention;
FIG. 5 is a sectional view (I) of a combined node structure of a utility tunnel according to embodiment 1 of the present invention;
FIG. 6 is a sectional view (II) of a combined node structure of a utility tunnel according to embodiment 1 of the present invention;
FIG. 7 is an enlarged view of a portion of FIG. 4 at A;
FIG. 8 is a sectional view showing a construction of a utility tunnel assembly node according to embodiment 2 of the present invention.
In the figure, a main line of a 1-pipe gallery, a 2-gas cabin, a 3-comprehensive cabin, a 4-electric cabin, a 5-equipment room, a 6-ventilation conversion layer, a 7-feeding conversion layer, a 71-first fireproof section, a 72-second fireproof section, a 73-second fireproof rolling shutter door, an 8-escape opening, a 9-first ventilation opening, a 10-first feeding opening, an 11-normally closed fireproof door, a 12-first fireproof rolling shutter door, a 13-second ventilation opening, a 14-fan, a 15-remote control electric smoke prevention fireproof valve, a 16-granite venetian, a 17-snow prevention shutter, an 18-prefabricated cover plate, 181-rubber belts, 182-bolts, 183-polysulfide sealant, a 19-falling prevention net, a 20-automatic hydraulic manhole cover plate, a 21-ladder, a 22-lintel, a 23-second feeding opening, a 24-third feeding opening, a 25-first light fireproof cover plate, a 26-second light fireproof cover plate, a 27-side wall, a 28-cabin sewage and 29-fourth feeding opening.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Example 1
Referring to fig. 1 to 6 (fig. 4 is a sectional view of a portion 1-1 in fig. 1-3, fig. 5 is a sectional view of a portion 2-2 in fig. 1-3, and fig. 6 is a sectional view of a portion 3-3 in fig. 1-3), a utility tunnel combined node structure includes a bottom plate, a middle plate and a top plate sequentially arranged from bottom to top, a main pipe tunnel line 1 is arranged between the bottom plate and the middle plate, and the bottom plate and the middle plate are connected through a side wall of the main pipe tunnel line 1. The middle plate and the top plate are connected through the side wall of the conversion layer. The utility model discloses a pipeline corridor is characterized by comprising a pipeline corridor main line 1, wherein the pipeline corridor main line 1 comprises a gas cabin 2, a comprehensive cabin 3 and an electric cabin 4 which are arranged in parallel, a conversion layer is arranged right above the comprehensive cabin 3 and the electric cabin 4, and lintel 22 is arranged on a top plate of the conversion layer at intervals so as to prevent potential safety hazards to the conversion layer when local stress is overlarge. The conversion layer includes equipment room 5, ventilation conversion layer 6 and the throwing conversion layer 7 that the level set up, the top of equipment room 5, ventilation conversion layer 6 and throwing conversion layer 7 is equipped with escape opening 8, first vent 9 and first dog-house 10 respectively, and wherein first vent 9 and first dog-house 10 are all higher than ground to prevent that the rainwater from flowing backward. The first feeding port 10 can also be used as a fan and a pipeline for feeding, and can be started for repeated use. The equipment room 5 and the ventilation conversion layer 6 are blocked by a normally closed fireproof door 11, and the ventilation conversion layer 6 and the feeding conversion layer 7 are blocked by a first fireproof rolling shutter door 12. The comprehensive cabin 3 and the electric cabin 4 are respectively divided into two fireproof subareas through normally closed fireproof doors, a second ventilation opening 13 is formed in the top of each fireproof subarea, and the four second ventilation openings 13 are respectively communicated with the first ventilation opening 9 through the ventilation conversion layer 6. According to the invention, the ventilation conversion layer 6 is designed to enable all fireproof subareas of the comprehensive cabin 3 and the electric cabin 4 to share one total ventilation opening (the first ventilation opening 9), so that the number of ventilation openings exposing the ground can be effectively reduced, the protrusions on the ground are reduced, the traffic is improved, and the surrounding environment is beautified. And each second ventilation opening 13 is provided with a fan 14, and a base of each fan 14 is provided with a remote control electric smoke-proof fire-proof valve 15, so as to isolate independent fire-proof intervals among multiple cabins. The fan in this embodiment is a roof-type fan.
Further, the escape opening 8 is provided with an anti-falling net 19 and an automatic hydraulic well cover 20 which can be remotely controlled, and the anti-falling net 19 is positioned below the automatic hydraulic well cover 20. A ladder stand 21 is arranged in the electric power cabin 4, a through hole (not shown) is formed in the middle plate at the bottom of the equipment room 5, and the ladder stand 21 extends to the escape opening 8 through the through hole. Namely, the climbing ladder 21 and the escape opening 8 form an escape passage. And in order to achieve the purposes of independent fire prevention and safe fire prevention, a first light fire-proof cover plate 25 is further covered on the through hole, and the crawling ladder 21 penetrates through the first light fire-proof cover plate 25 to extend to the escape opening 8. The escape opening 8 also serves as an entrance and an exit of the working personnel, and is used for escaping and entering the utility tunnel at ordinary times and under emergency conditions. Since the escape passage is deep, a falling prevention net 19 is fixedly arranged to prevent sudden falling, so as to ensure safety. In addition, by adopting the automatic hydraulic manhole cover 20, unauthorized persons can be prevented from stealing the manhole cover or unauthorized persons can enter the main line 1 of the pipe gallery, and persons in the pipe gallery can easily open the manhole cover for escape, access and the like. The ladder stand 21 is a vertical steel ladder stand, and has the function of not occupying valuable space in a pipe gallery due to the simple structure.
The top of the first ventilation opening 9 is provided with a granite veneering 16, a rain and snow-proof shutter 17 and an insect-proof net (not shown) are arranged around the first ventilation opening 9, the rain and snow-proof shutter 17 is positioned outside the insect-proof net, and the rain and snow-proof shutter 17 and the insect-proof net can play roles of ventilation, insect prevention and theft prevention simultaneously. In this embodiment, the snow and rain shutter 17 is an aluminum alloy with a thickness of 1.4mm, the insect net is a steel wire net and the holes of the insect net are 10×10mm. The first ventilation opening 9 is shaped as a wind shaft, and the effective ventilation area is not less than 4.5 square meters.
The upper cover of the first feed inlet 10 is provided with a prefabricated cover plate 18. The bottom of prefabricated apron 18 still is equipped with rubber belt 181, and prefabricated apron 18 screws up through bolt 182 nut and rubber belt 181, and this setting plays theftproof, waterproof effect, and rethread polysulfide sealant 183 seals prefabricated apron 18 and the edge contact department of first feed opening 10, plays waterproof effect, as shown in fig. 7.
The bottom of the feeding conversion layer 7 is provided with a second feeding port 23 and a third feeding port 24 at intervals, the second feeding port 23 is communicated with the comprehensive cabin 3, and the third feeding port 24 is communicated with the electric cabin 4. The second feeding port 23 and the third feeding port 24 are covered with a second light fireproof cover plate 26, and the second light fireproof cover plate 26 is normally closed (i.e. covered) and is opened when the feeding is needed. In this embodiment, the second light fireproof cover plate 26 is a glass fiber reinforced plastic cover plate, and the bearing capacity is not less than 5KPa. The first feeding port 10 corresponds to a total feeding port, after feeding through one total feeding port exposed to the ground, the feeding is transferred to each cabin through the feeding conversion layer 7, and the feeding ports (such as the second feeding port 23 and the third feeding port 24) of each cabin are fed, so that the number of the feeding ports exposed to the ground can be greatly reduced, the protrusions on the ground are further reduced, the traffic is improved, and the surrounding environment is beautified.
Further, a second fire-proof rolling shutter door 73 is further disposed in the material feeding conversion layer 7 to play a role in dividing the fire-proof section, i.e. dividing the material feeding conversion layer 7 into a first fire-proof section 71 and a second fire-proof section 72. The second fire-proof rolling shutter door 73 is normally closed and opened when charging. The second feeding port 23 is located at the bottom of the first fireproof section 71, and the third feeding port 24 is located at the bottom of the second fireproof section 72.
Further, a wet-laid waterproof roll and a fine stone concrete protective layer are laid on the side wall 27 of the conversion layer. The wet-laid waterproof coiled material comprises a bottom isolation membrane layer, a material layer, an adhesive layer positioned above and below the material layer and a top isolation membrane layer. The material layer comprises a high polymer film layer containing a galvanized layer, a thermoplastic elastomer layer, polyester fiber cloth and glass fiber cloth. The adhesive layer is mainly prepared from the following components in parts by weight: 28 parts of modified asphalt, 8 parts of butyl naphthenate plasticizer, 6 parts of pentaerythritol bisphosphite antioxidant and 5 parts of aluminum hydroxide flame retardant.
The modified asphalt is mainly prepared from the following raw materials in parts by weight: 16 parts of asphalt, 15 parts of rubber powder, 15 parts of epoxy resin, 10 parts of organosilicon emulsion, 6 parts of polyacrylate, 4 parts of stearic acid, 4 parts of aluminate, 3 parts of polyvinyl alcohol, 2 parts of alumina and 1 part of superfine calcium carbonate. The preparation method of the modified asphalt comprises the following steps:
(1) Weighing the raw materials in parts by weight;
(2) Putting asphalt into a stirring tank, heating to 130 ℃, adding rubber powder, epoxy resin, organic silicon emulsion, polyacrylate and stearic acid, heating to 160 ℃, and stirring for 1 hour to obtain a melt;
(3) Grinding aluminum oxide, sieving with a 300-mesh sieve, and uniformly mixing with superfine calcium carbonate to obtain inorganic powder;
(4) Adding the inorganic powder, the aluminate and the polyvinyl alcohol into the melt, mixing and stirring, adding PVDF while stirring, and uniformly stirring to obtain the PVDF-based composite material.
The bottom isolation film layer and the top isolation film layer are both polyethylene films.
The concrete used for the fine stone concrete protective layer is waterproof concrete, the strength grade of the waterproof concrete is C35, and the impermeability grade is P8. The cement selected in the waterproof concrete is low-hydration cement, and the fineness of the low-hydration cement is not more than 350m 2 /kg. The fineness of the low hydration cement in this embodiment is 300m 2 /kg. The anti-cracking siliceous waterproof agent is added into the waterproof concrete, the dosage of the waterproof concrete is 5% of that of the gel material, and the dosage of the gel material is not less than 300Kg/m 2 And not more than 400Kg/m 2 (including admixtures and additives). In this example, the amount of the cementing material was 356Kg/m 2 . The chloride ion content in the waterproof concrete is not more than 0.1% of the total amount of the cementing material; the porosity of the aggregate of the waterproof concrete is not more than 40%, and the slump of the aggregate is controlled to be 120mm plus or minus 20. In this embodiment, the chloride ion content in the waterproof concrete is 0.08% of the total amount of the cementing material; the porosity of the aggregate of the waterproof concrete is 37%, and the slump of the waterproof concrete is controlled to be 120 mm+/-10.
Example 2
In this embodiment, the same as in embodiment 1 is used except that the utility tunnel combined node structure further includes a wet-laid waterproof roll material disposed on a sewage cabin 28 in the tunnel 1 and a side wall 27 of the conversion layer.
In this embodiment, as shown in fig. 8, the utility tunnel combined node structure further includes a sewage tank 28 disposed in the pipe tunnel 1, the sewage tank 28 is disposed parallel to the gas tank 2, the utility tank 3 and the electric power tank 4, the conversion layer is disposed right above the utility tank 3, the electric power tank 4 and the sewage tank 28, the sewage tank 28 is also divided into two fireproof partitions, a second air vent 13 is also disposed at the top of each fireproof partition, and the second air vent 13 is all communicated with the first air vent 9 through the ventilation conversion layer 6. The bottom of the feeding conversion layer 7 is also provided with a fourth feeding port 29, and the fourth feeding port 29 is communicated with the sewage cabin 28.
The wet-laid waterproof coiled material comprises a bottom isolation membrane layer, a material layer, an adhesive layer positioned above and below the material layer and a top isolation membrane layer. The material layer comprises a polymer laminated film layer, a thermoplastic elastomer layer and glass fiber cloth. The adhesive layer is mainly prepared from the following components in parts by weight: 55 parts of modified asphalt, 15 parts of citrate plasticizer, 12 parts of pentaerythritol bisphosphite antioxidant and 12 parts of aluminum hydroxide flame retardant.
The modified asphalt is mainly prepared from the following raw materials in parts by weight: 32 parts of asphalt, 30 parts of rubber powder, 25 parts of epoxy resin, 18 parts of organosilicon emulsion, 12 parts of polyacrylate, 10 parts of stearic acid, 8 parts of aluminate, 8 parts of polyvinyl alcohol, 6 parts of alumina and 5 parts of superfine calcium carbonate. The preparation method of the modified asphalt comprises the following steps:
(1) Weighing the raw materials in parts by weight;
(2) Putting asphalt into a stirring tank, heating to 140 ℃, adding rubber powder, epoxy resin, organic silicon emulsion, polyacrylate and stearic acid, heating to 175 ℃, and stirring for 2 hours to obtain a melt;
(3) Grinding aluminum oxide, sieving with a 300-mesh sieve, and uniformly mixing with superfine calcium carbonate to obtain inorganic powder;
(4) Adding the inorganic powder, the aluminate and the polyvinyl alcohol into the melt, mixing and stirring, adding PVDF while stirring, and uniformly stirring to obtain the PVDF-based composite material.
The bottom isolation film layer and the top isolation film layer are polyvinyl chloride films.
Example 3
In this example, the components of the wet laid waterproof roll were the same as in example 1, except that the components were the same.
The wet-laid waterproof coiled material comprises a bottom isolation membrane layer, a material layer, an adhesive layer and a top isolation membrane layer from bottom to top. The material layer comprises a high polymer film layer containing a galvanized layer, a thermoplastic elastomer layer and polyester fiber cloth. The adhesive layer is mainly prepared from the following components in parts by weight: 35 parts of modified asphalt, 12 parts of butyl naphthenate plasticizer, 8 parts of pentaerythritol bisphosphite antioxidant and 8 parts of aluminum hydroxide flame retardant.
The modified asphalt is mainly prepared from the following raw materials in parts by weight: 25 parts of asphalt, 22 parts of rubber powder, 20 parts of epoxy resin, 15 parts of organosilicon emulsion, 8 parts of polyacrylate, 6 parts of stearic acid, 5 parts of aluminate, 4 parts of polyvinyl alcohol, 3 parts of alumina and 2 parts of superfine calcium carbonate. The preparation method of the modified asphalt comprises the following steps:
(1) Weighing the raw materials in parts by weight;
(2) Putting asphalt into a stirring tank, heating to 135 ℃, adding rubber powder, epoxy resin, organic silicon emulsion, polyacrylate and stearic acid, heating to 170 ℃, and stirring for 1.5 hours to obtain a melt;
(3) Grinding aluminum oxide, sieving with a 300-mesh sieve, and uniformly mixing with superfine calcium carbonate to obtain inorganic powder;
(4) Adding the inorganic powder, the aluminate and the polyvinyl alcohol into the melt, mixing and stirring, adding PVDF while stirring, and uniformly stirring to obtain the PVDF-based composite material.
The bottom isolation film layer and the top isolation film layer are polyester films.
Comparative example
In the utility tunnel combination node structure of this comparative example, the same as in example 1 was found except that the wet laid waterproofing membrane used was an SBS modified asphalt waterproofing membrane.
The applicant examined the waterproof property and tensile property of the wet laid waterproofing sheets of the above examples and comparative examples, and the results are shown in table 1:
TABLE 1
From the data of the table, the water impermeability and tensile property of the wet-laid waterproof coiled material of each embodiment of the invention are better than those of the SBS modified asphalt waterproof coiled material, which shows that the wet-laid waterproof coiled material of the invention has good waterproof effect and durability, so that the utility tunnel waterproof structure of the invention has good waterproof effect and longer service life.
The foregoing description is directed to the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the invention, and all equivalent changes or modifications made under the technical spirit of the present invention should be construed to fall within the scope of the present invention.
Claims (8)
1. The utility model provides a utility tunnel combination node structure, its characterized in that, is including bottom plate, medium plate and the roof that from bottom to top set gradually, be the pipe gallery mainline between bottom plate and the medium plate, bottom plate and medium plate pass through the side wall connection of pipe gallery mainline, be the conversion layer between medium plate and the roof, medium plate and roof pass through the side wall connection of conversion layer, including gas cabin, utility cabin and the electric power cabin that set up side by side in the pipe gallery mainline, the conversion layer is located directly over utility cabin and the electric power cabin, the conversion layer includes between equipment, ventilation conversion layer and the material conversion layer of throwing that the level set up, be equipped with escape mouth, first vent and first material mouth respectively on the roof between equipment, ventilation conversion layer and the top of throwing the material conversion layer, between equipment with through the normal close fire prevention fire door separation between the ventilation conversion layer and the material conversion layer of throwing through first fire prevention rolling shutter door separation; the comprehensive cabin and the electric power cabin are respectively divided into two fireproof subareas, a second ventilation opening is formed in the top of each fireproof subarea, and the four second ventilation openings are communicated with the first ventilation opening through the ventilation conversion layer; a fan is arranged on each second ventilation opening, and a remote control electric smoke-proof fire-proof valve is arranged at the base of each fan;
a wet-laid waterproof coiled material and a fine stone concrete protective layer are laid on the outer side of the side wall of the conversion layer;
the wet-laid waterproof coiled material comprises a bottom isolation membrane layer, a material layer, an adhesive layer positioned above and below the material layer and a top isolation membrane layer; the adhesive layer is mainly prepared from the following components in parts by weight: 28-55 parts of modified asphalt, 8-15 parts of plasticizer, 6-12 parts of antioxidant and 5-12 parts of flame retardant;
the modified asphalt is mainly prepared from the following raw materials in parts by weight: 16-32 parts of asphalt, 15-30 parts of rubber powder, 15-25 parts of epoxy resin, 10-18 parts of organic silicon emulsion, 6-12 parts of polyacrylate, 4-10 parts of stearic acid, 4-8 parts of aluminate, 3-8 parts of polyvinyl alcohol, 2-6 parts of alumina and 1-5 parts of superfine calcium carbonate.
2. The utility tunnel combination node structure of claim 1, wherein the top of the first vent is granite veneered, a rain and snow-proof shutter and an insect-proof net are arranged around the first vent, and the rain and snow-proof shutter is positioned outside the insect-proof net; the upper cover of the first feeding port is provided with a prefabricated cover plate; the escape opening is provided with an anti-falling net and an automatic hydraulic well lid capable of being remotely controlled, and the anti-falling net is positioned below the automatic hydraulic well lid.
3. The utility tunnel combination node structure of claim 1, wherein a ladder is arranged in the utility tunnel or the electric power cabin, a through hole is formed in the middle plate at the bottom of the equipment room, a first light fireproof cover plate is further covered on the through hole, and the ladder penetrates through the first light fireproof cover plate and extends to the escape opening.
4. The utility tunnel combination node structure of claim 1, wherein a second feed port and a third feed port are arranged at the bottom of the feed conversion layer at intervals, the second feed port is communicated with the utility tunnel, and the third feed port is communicated with the electric power tunnel; and the second feeding port and the third feeding port are respectively covered with a light fireproof cover plate.
5. The utility tunnel composite node structure of claim 4, wherein a second fire-proof rolling shutter door is arranged in the material feeding conversion layer to divide the material feeding conversion layer into a first fire-proof section and a second fire-proof section, the second material feeding port is positioned at the bottom of the first fire-proof section, and the third material feeding port is positioned at the bottom of the second fire-proof section.
6. The utility tunnel assembly node structure of claim 1, further comprising a sewage tank disposed in the tunnel, wherein the sewage tank is disposed in parallel with the gas tank, the utility tank and the electric tank, the conversion layer is disposed directly above the utility tank, the electric tank and the sewage tank, the sewage tank is also divided into two fireproof partitions, a second ventilation opening is also disposed at the top of each fireproof partition, and the second ventilation openings are all communicated with the first ventilation openings through the ventilation conversion layer; the bottom of the feeding conversion layer is also provided with a fourth feeding port which is communicated with the sewage cabin.
7. The utility tunnel composite node structure of claim 1, wherein the method of preparing the modified asphalt comprises the steps of:
(1) Weighing the raw materials in parts by weight;
(2) Placing asphalt into a stirring tank, heating to 130-140 ℃, adding rubber powder, epoxy resin, organosilicon emulsion, polyacrylate and stearic acid, heating to 160-175 ℃, and stirring for 1-2 hours to obtain a melt;
(3) Grinding aluminum oxide, sieving with a 300-mesh sieve, and uniformly mixing with superfine calcium carbonate to obtain inorganic powder;
(4) Adding the inorganic powder, the aluminate and the polyvinyl alcohol into the melt, mixing and stirring, adding PVDF while stirring, and uniformly stirring to obtain the PVDF-based composite material.
8. The utility tunnel composite node structure of claim 1, wherein the plasticizer is butyl naphthenate or citrate, the antioxidant is pentaerythritol bisphosphite, and the flame retardant is aluminum hydroxide.
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