CN204691792U - A kind of tunnel in cold area anti-freezing and heat-insulating system - Google Patents
A kind of tunnel in cold area anti-freezing and heat-insulating system Download PDFInfo
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- CN204691792U CN204691792U CN201520204413.1U CN201520204413U CN204691792U CN 204691792 U CN204691792 U CN 204691792U CN 201520204413 U CN201520204413 U CN 201520204413U CN 204691792 U CN204691792 U CN 204691792U
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Abstract
The utility model discloses a kind of tunnel in cold area anti-freezing and heat-insulating system, comprise aluminium film, lightweight aggregate thermal insulation concrete, steel corrugated sheet, dewatering installation, aluminium film fastening devices and heater; Aluminium film entirety arcuately; Aluminium film is fixed on secondary lining by aluminium film fastening devices; Gap is provided with between aluminium film and secondary lining; The bottom in the gap formed between aluminium film and secondary lining is connected with the dewatering installation with birdsmouth; The width being provided with gap between aluminium film and secondary lining is less than or equal to the width of the birdsmouth of dewatering installation; The inner side of aluminium film is provided with steel corrugated sheet; Lightweight aggregate thermal insulation concrete is filled with between steel corrugated sheet and aluminium film; Heater is embedded in the lightweight aggregate thermal insulation concrete between steel corrugated sheet and aluminium film.The utility model effectively can not only solve existing tunnel in cold area percolating water and freeze injury problem, and enhances tunnel in cold area lining cutting freeze thawing resistance damage capability greatly, improves tunnel in cold area liner structure durability.
Description
Technical field
The utility model belongs to construction of tunnel diaster prevention and control technical field, relates to a kind of tunnel in cold area anti-freezing and heat-insulating system.
Background technology
In recent years, along with the development of China's transport development cause, the situations such as the meteorological model that freeway tunnel faces, geology and geomorphology, surrounding rock type become increasingly complex, and water leakage defect has become one of main problem that highway tunnel faces.Under the long term of percolating water, can there is erosion damage in tunnel lining structure, cause surface gathered water, worsens environment, and meanwhile, percolating water will affect safety and the functional performance of the equipment such as electromechanics, ventilation, illumination in tunnel.Especially at the tunnel in cold area that the operation time limit is more of a specified duration, under multigelation ringing, tunnel water proofing material performance sharply declines, and causes percolating water very easily to enter in lining cutting through waterproofing course, impels concrete lining weathering, degrades, cause structural deterioration; And for lining cutting drainage system behind, then very easily produce drainage performance to decline because of the reason such as icing, frost heave, bursting by freezing, cause lining cutting impeded drainage behind, percolating water oozes out from lining cutting weak place, carry out and cause abutment wall and hang the diseases such as ice, icy on road, lining cutting frost heave cracking, serious threat is to traffic safety.
The measures such as existing tunnel in cold area Defects Treatment method mainly contains wall rock grouting, buries aqueduct underground, surface spraying heat insulating material.In tunnel in cold area, use wall rock grouting, the factors such as its slurry infiltration coefficient, time of setting, dilation angle are very easily by the impact of low temperature, and waterproof effect is unsatisfactory, and wall rock grouting operation construction period is longer, cost is higher; Bury aqueduct underground only for construction joint of tunnel in cold area percolating water punishment aspect, and for the infiltration of tunnel lining large area, ooze situation slowly applicability poor, and due to the aqueduct depth of burying general more shallow, very easily there is to freeze blocking; Surface spraying heat insulating material method is by the restriction of the aspect such as coating thickness, material property, and its heat insulation effect is unsatisfactory, and engineering cost is higher.In a word, consider from the aspect such as prevention effect, economic benefit, existing tunnel in cold area anti-freezing and heat-insulating technology can not adapt to the development that construction of tunnel is built.
Utility model content
The utility model, for Problems existing in existing tunnel in cold area anti-freezing and heat-insulating technology, provides a kind of with strong points, reasonable in design, easy construction, the tunnel in cold area anti-freezing and heat-insulating system that workable and construction costs is low.
The purpose of this utility model is realized by following technological means:
A kind of tunnel in cold area anti-freezing and heat-insulating system, is characterized in that: described tunnel in cold area anti-freezing and heat-insulating system comprises aluminium film, lightweight aggregate thermal insulation concrete, steel corrugated sheet, dewatering installation, aluminium film fastening devices and heater; Described aluminium film is overall arcuately and match with the inner side of the secondary lining of tunnel in cold area; Described aluminium film is fixed on the secondary lining of tunnel in cold area by aluminium film fastening devices; Gap is provided with between described aluminium film and the secondary lining of tunnel in cold area; The bottom in the gap formed between described aluminium film and the secondary lining of tunnel in cold area is connected with the dewatering installation with birdsmouth; The width being provided with gap between described aluminium film and the secondary lining of tunnel in cold area is less than or equal to the width of the birdsmouth of dewatering installation; The inner side of described aluminium film is provided with steel corrugated sheet; Lightweight aggregate thermal insulation concrete is filled with between described steel corrugated sheet and aluminium film; Described heater is embedded in the lightweight aggregate thermal insulation concrete between steel corrugated sheet and aluminium film.
As preferably, the aluminium film fastening devices that the utility model adopts comprises aluminium alloy joist frame, lightweight fibre-cement mortar and self-tapping screw; Described aluminium alloy joist frame entirety is U-shaped; The opening surface of described aluminium alloy joist frame to the secondary lining of tunnel in cold area, and is fixed by the secondary lining of self-tapping screw and tunnel in cold area; Described aluminium film and aluminium alloy joist frame are fixed; Lightweight fibre-cement mortar is filled with between described aluminium alloy joist frame and the secondary lining of tunnel in cold area.
As preferably, compressive strength during 3d length of time of the lightweight fibre-cement mortar that the utility model adopts should be not less than 25Mpa.
As preferably, the heater that the utility model adopts comprises pvc pipe and is arranged on the heat tape of pvc pipe inside; Described pvc pipe is embedded in the lightweight aggregate thermal insulation concrete between steel corrugated sheet and aluminium film; The lower end of described pvc pipe is buried on dewatering installation, and the upper end of described pvc pipe is from the curved tapping corrugated sheet in tunnel in cold area spandrel position.
As preferably, the ribbon heater that the utility model adopts comprises heating wire, fiberglass insulation, silicone rubber insulation layer and metallic bus bar; Described metallic bus bar is connected with heating wire; Described fiberglass insulation is around being arranged on heating wire outside; Described silicone rubber insulation layer is arranged on fiberglass insulation outside.
As preferably, the power output of the ribbon heater that the utility model adopts is not less than 50W/m, and most high maintenance temperature is 110 DEG C, and the highest bearing temperature is 135 DEG C.
As preferably, the dewatering installation that the utility model adopts comprises aluminium alloys catch basin, vertical drainage pipe, longitudinal drainage pipe, transverse drain and central row ditch; Described aluminium alloys catch basin is overall U-shaped birdsmouth; Described aluminium alloys catch basin is connected by vertical drainage pipe, longitudinal drainage pipe and transverse drain and central row ditch successively; Described aluminium alloys catch basin and the bottom in gap formed between aluminium film and the secondary lining of tunnel in cold area connect; The width being provided with gap between described aluminium film and the secondary lining of tunnel in cold area is less than or equal to the width of aluminium alloys catch basin.
As preferably, the aluminium film that the utility model adopts is overall structure or Split type structure; The thickness of described aluminium film is not more than 0.3mm; When described aluminium film is Split type structure, described aluminium film is superposed by multi-disc aluminium film and supports; The fabric width of described every sheet aluminium film is 1 ~ 3m; Described steel corrugated sheet is Q235-A hot rolled steel plate, and the thickness of described steel corrugated sheet is not more than 1.2mm, and the crest height of described steel corrugated sheet is 18mm.
The utility model has the advantages that:
The utility model provides a kind of tunnel in cold area anti-freezing and heat-insulating system, this anti-freezing and heat-insulating system utilizes aluminium alloy joist frame and lightweight fibre-cement mortar to lay aluminium film on former tunnel lining surface, aluminium alloys catch basin, vertical drainage pipe are set in aluminium film bottom, thus the percolating water between aluminium film and two being served as a contrast concentrates guide to central row ditch; And by filling lightweight aggregate thermal insulation concrete between steel corrugated sheet and aluminium film, form insulation layer; In pre-buried pvc pipe, insert heat tape, as ancillary method, insulation effect is played to tunnel.Specifically, the utility model has the following advantages:
1, aluminium alloy joist frame and lightweight fibre-cement mortar is utilized to lay aluminium film on former tunnel lining surface, gap between aluminium film and tunnel lining can be used as percolating water drainage channel, can be used as again the effect that air cushion layer plays heat-insulation and heat-preservation, and utilize aluminium alloy joist frame and lightweight fibre-cement mortar that the air layer between aluminium film and tunnel lining is divided into block of cells, avoid cross-ventilation heat exchange, solve traditional defect from wall type insulation construction effect of heat insulation difference.
2, aluminium alloys catch basin, vertical drainage pipe are set in aluminium film bottom, percolating water are imported longitudinal drainage pipe, transverse drain and central row ditch, take full advantage of original tunnel waterproof and water drainage system, easy construction, environmental protection and energy saving, low-carbon high-efficiency.
3, steel corrugated sheet can carry out batch production centralized production, system easy to control the quality, and it can on-site consolidation, convenient and quick construction; Its structural mechanical property is better, and load assignment is even, has certain non-deformability; In maintenance processes, the operation of steel corrugated sheet partial disassembly more for convenience, gives this system with can maintenance function.
4, lightweight aggregate thermal insulation concrete has lightweight, high-strength, insulation, the advantage such as fire-resistant, and its material cost is lower, construction method is simple, heat insulation effect is good.
5, utilize heat tape as ancillary method, in tunnel, the lower or Portal Section of temperature can heat it as required, imparts this system with active heated function, and this facility environmental protection, energy-conservation, working drawing review convenient.
Adopt the utility model effectively can solve existing tunnel in cold area freeze injury problem, structure is simple, easy construction, applicability are strong, environmental protection and energy saving, and cost is lower, has good economic results in society.
Accompanying drawing explanation
Fig. 1 is the cross-sectional drawing of tunnel in cold area anti-freezing and heat-insulating system provided by the utility model;
The structural representation of the lightweight aggregate thermal insulation concrete that Fig. 2 adopts for the utility model, pvc pipe, heat tape;
The skiagraph of the tunnel in cold area anti-freezing and heat-insulating system that Fig. 3 adopts for the utility model;
The structural representation of the aluminium alloy joist frame that Fig. 4 adopts for the utility model and lightweight fibre-cement mortar;
The structural representation of the aluminium alloys catch basin that Fig. 5 adopts for the utility model, vertical drainage pipe and longitudinal drainage pipe;
The structural representation of the heat tape that Fig. 6 adopts for the utility model;
Description of reference numerals is as follows:
1-secondary lining; 2-concrete pedestal; 3-aluminium film; 4-lightweight aggregate thermal insulation concrete; 5-steel corrugated sheet; 6-PVC manages; 7-aluminium alloys catch basin; 8-vertical drainage pipe; 9-longitudinal drainage pipe; 10-transverse drain; 11-central row ditch; 12-aluminium alloy joist; 13-lightweight fibre-cement mortar; 14-self-tapping screw; 15-heat tape; 16-heating wire; 17-fiberglass insulation; 18-silicone rubber insulation layer; 19-metallic bus bar.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, structure of the present utility model is described in further detail:
See Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, a kind of tunnel in cold area anti-freezing and heat-insulating system is primarily of compositions such as concrete pedestal 2, aluminium film 3, lightweight aggregate thermal insulation concrete 4, steel corrugated sheet 5, pvc pipe 6, aluminium alloys catch basin 7, vertical drainage pipe 8, longitudinal drainage pipe 9, transverse drain 10, central row ditch 11, aluminium alloy joist frame 12, lightweight fibre-cement mortar 13, self-tapping screw 14, heat tapes 15.
See Fig. 3 and Fig. 4, aluminium film 3 is arranged on inside Tunnel Second Lining 1, utilizes inside aluminium alloy joist frame 12 and lightweight fibre-cement mortar 13 and Tunnel Second Lining 1 and is fixed; Steel corrugated sheet 5 is arranged on inside aluminium film 3, and steel corrugated sheet 5 carries out filling with the gap lightweight aggregate thermal insulation concrete 4 of aluminium film 3; Pvc pipe 6 is embedded in the lightweight aggregate thermal insulation concrete 4 between steel corrugated sheet 5 and aluminium film 3; Heat tape 15 is arranged in pvc pipe 6; Aluminium film 3 lower end connecting aluminum alloy catch basin 7, aluminium alloys catch basin 7 lower end connects vertical drainage pipe 8, is imported by percolating water in longitudinal drainage pipe 9, and the width between inside aluminium film 3 and Tunnel Second Lining 1 is less than or equal to the length of the opening of aluminium alloys catch basin 7.
See Fig. 6, heat tape 15 is made up of heating wire 16, fiberglass insulation 17, silicone rubber insulation layer 18, metallic bus bar 19; Wherein, metallic bus bar is connected with heating wire; Fiberglass insulation is around being arranged on heating wire outside; Silicone rubber insulation layer is arranged on fiberglass insulation outside.
Aluminium film 3 thickness is 0.3mm, and fabric width is 1 ~ 3m, can determine according to actual conditions.
Aluminium alloy joist frame 12 should bend by tunnel cross-section situation, lays ringwise, and longitudinal pitch is 1.0m, fills in its groove with lightweight fibre-cement mortar 13.
Lightweight fibre-cement mortar 13 is rapid setting cement by rapid setting cement (abbreviation of Rapid harding portland cement), glass fiber and perlite according to mass ratio: glass fiber: the proportioning of perlite=1:0.1:0.5 mixes and obtains, and compressive strength during its 3d length of time should be not less than 25MPa.
Aluminium alloys catch basin 7 is arranged on aluminium film 3 lower end, and its cross sectional dimensions should be 5cm × 10cm; Arrange a Φ 50PVC vertical drainage pipe 8 in aluminium alloys catch basin 7 lower end every 10m, vertical drainage pipe 8 lower end connects longitudinal drainage pipe 9.
Steel corrugated sheet 5 is Q235-A hot rolled steel plate, and its thickness is 1.2mm, and crest height is 18mm, its utilize bolt carry out hoop assembled shaping after, then carry out longitudinal connection.
Heat tape 15 comprises heating wire 16, fiberglass insulation 17, silicone rubber insulation layer 18, metallic bus bar 19, and its power output should be not less than 50W/m, and most high maintenance temperature is 110 DEG C, and the highest bearing temperature is 135 DEG C.
According to provided by the utility model based on tunnel in cold area anti-freezing and heat-insulating system when Specific construction, the steps include:
A, for in-service tunnel in cold area, remove the lighting installation on top, tunnel and cable, cut the original cable trench in tunnel, remove disintegrating slag, smooth substrate, concreting pedestal 2, the thickness of concrete pedestal 2 is 30cm, and width is 1.2m; For newly-built tunnel in cold area, fluid concrete pedestal before secondary lining applies;
B, aluminium alloy joist frame 12 should bend by tunnel cross-section situation, lay ringwise, longitudinal pitch is 1.0m, and its upper end is from vault, lower end is seated on concrete pedestal 2, and hoop interval 50cm is fixed on secondary lining 1 at aluminium alloy joist frame 12 both sides self-tapping screw; Fill with lightweight fibre-cement mortar 13 in aluminium alloy joist frame 12 groove, lightweight fibre-cement mortar 13 is rapid setting cement by rapid setting cement, glass fiber and perlite according to mass ratio: glass fiber: the proportioning of perlite=1:0.1:0.5 mixes and obtains, and compressive strength during its 3d length of time should be not less than 25MPa.
C, from aluminium film volume cutting aluminium diaphragm 3, its thickness is 0.3mm, optional 1 ~ the 3m of fabric width, aluminium diaphragm 3 marks transversal centerline, overlapped with tunnel vault center line by this center line, from vault, lay aluminium film 3 to both sides, two panels aluminium film 3 presses stubble 10cm, connect batch position to overlap with aluminium alloy joist frame 12 position, hoop interval 30cm lays a self-tapping screw 14 and is fixed on aluminium alloy joist frame 12 by aluminium film 3.
D, arrange aluminium alloys catch basin 7 in aluminium film 3 lower end, its cross sectional dimensions should be 5cm × 10cm; Aluminium alloys catch basin 7 lower end concrete pedestal 2 is drilled with every 10m the hole that a diameter is 55mm, inserts Φ 50PVC pipe as vertical drainage pipe 8, in vertical drainage pipe 8 lower end access longitudinal drainage pipe 9.
E, utilize bolt to steel corrugated sheet 5 carry out hoop assembled shaping after, then carry out longitudinal connection, its arch springing position is seated on concrete pedestal 2; Pre-buried pvc pipe 6 between steel corrugated sheet 5 and aluminium film 3, this pipe lower end is buried to longitudinal drainage pipe 9, and upper end, from the curved tapping corrugated sheet 5 in spandrel position, tunnel, is heated tunnel to insert heat tape if desired in pvc pipe.
F, proportioning preparation lightweight aggregate thermal insulation concrete (each raw material is uniformly mixed and obtains lightweight aggregate thermal insulation concrete) utilizing artificial porcelain granule, light weight sand, portland cement, water, water reducing agent to be 3:2.5:1.3:1:0.03 in mass ratio, its dry apparent density should be less than 1950kg/m
3, coefficient of thermal conductivity is less than 0.84w/mk; Grouting Pipe is utilized to be packed between steel corrugated sheet 5 and aluminium film 3; Lightweight aggregate thermal insulation concrete 4 is filled and from arch springing, progressively upwards should be filled, and surface vibrator should be adopted in the filling process on steel corrugated sheet 5 to carry out jolt ramming.
Backfill lightweight aggregate thermal insulation concrete 4 in sphenoid above G, central row ditch 11; Heat tape 15 is inserted in pvc pipe 6; At steel corrugated sheet 5 outer wall brushing twice RPA type thin-layer rust-preventative oil.
From Fig. 1, Fig. 2, Fig. 3, gap between aluminium film and tunnel lining can be used as percolating water drainage channel, can be used as again the effect that air cushion layer plays heat-insulation and heat-preservation, and utilize aluminium alloy joist frame and lightweight fibre-cement mortar that the air layer between aluminium film and tunnel lining is divided into block of cells, avoid cross-ventilation heat exchange, solve traditional defect from wall type insulation construction effect of heat insulation difference.Steel corrugated sheet can carry out batch production centralized production, system easy to control the quality, and it can on-site consolidation, convenient and quick construction; Its structural mechanical property is better, and load assignment is even, has certain non-deformability; In maintenance processes, the operation of steel corrugated sheet partial disassembly more for convenience, gives this system with can maintenance function.Lightweight aggregate thermal insulation concrete has lightweight, high-strength, insulation, the advantage such as fire-resistant, and its material cost is lower, construction method is simple, heat insulation effect is good.As shown in Figure 5, aluminium alloys catch basin, vertical drainage pipe are set in aluminium film bottom, percolating water are imported longitudinal drainage pipe, transverse drain and central row ditch, take full advantage of original tunnel waterproof and water drainage system, easy construction, environmental protection and energy saving, low-carbon high-efficiency.Adopt the utility model effectively can solve existing tunnel in cold area freeze injury problem, structure is simple, easy construction, applicability are strong, environmental protection and energy saving, and cost is lower, has good economic results in society.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to most preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (8)
1. a tunnel in cold area anti-freezing and heat-insulating system, is characterized in that: described tunnel in cold area anti-freezing and heat-insulating system comprises aluminium film, lightweight aggregate thermal insulation concrete, steel corrugated sheet, dewatering installation, aluminium film fastening devices and heater; Described aluminium film is overall arcuately and match with the inner side of the secondary lining of tunnel in cold area; Described aluminium film is fixed on the secondary lining of tunnel in cold area by aluminium film fastening devices; Gap is provided with between described aluminium film and the secondary lining of tunnel in cold area; The bottom in the gap formed between described aluminium film and the secondary lining of tunnel in cold area is connected with the dewatering installation with birdsmouth; The width being provided with gap between described aluminium film and the secondary lining of tunnel in cold area is less than or equal to the width of the birdsmouth of dewatering installation; The inner side of described aluminium film is provided with steel corrugated sheet; Lightweight aggregate thermal insulation concrete is filled with between described steel corrugated sheet and aluminium film; Described heater is embedded in the lightweight aggregate thermal insulation concrete between steel corrugated sheet and aluminium film.
2. tunnel in cold area anti-freezing and heat-insulating system according to claim 1, is characterized in that: described aluminium film fastening devices comprises aluminium alloy joist frame, lightweight fibre-cement mortar and self-tapping screw; Described aluminium alloy joist frame entirety is U-shaped; The opening surface of described aluminium alloy joist frame to the secondary lining of tunnel in cold area, and is fixed by the secondary lining of self-tapping screw and tunnel in cold area; Described aluminium film and aluminium alloy joist frame are fixed; Lightweight fibre-cement mortar is filled with between described aluminium alloy joist frame and the secondary lining of tunnel in cold area.
3. tunnel in cold area anti-freezing and heat-insulating system according to claim 2, is characterized in that: compressive strength during 3d length of time of described lightweight fibre-cement mortar should be not less than 25 Mpa.
4. the tunnel in cold area anti-freezing and heat-insulating system according to claim 1 or 2 or 3, is characterized in that: described heater comprises pvc pipe and is arranged on the heat tape of pvc pipe inside; Described pvc pipe is embedded in the lightweight aggregate thermal insulation concrete between steel corrugated sheet and aluminium film; The lower end of described pvc pipe is buried on dewatering installation, and the upper end of described pvc pipe is from the curved tapping corrugated sheet in tunnel in cold area spandrel position.
5. tunnel in cold area anti-freezing and heat-insulating system according to claim 4, is characterized in that: described ribbon heater comprises heating wire, fiberglass insulation, silicone rubber insulation layer and metallic bus bar; Described metallic bus bar is connected with heating wire; Described fiberglass insulation is around being arranged on heating wire outside; Described silicone rubber insulation layer is arranged on fiberglass insulation outside.
6. tunnel in cold area anti-freezing and heat-insulating system according to claim 5, is characterized in that: the power output of described ribbon heater is not less than 50 W/m, and most high maintenance temperature is 110 DEG C, and the highest bearing temperature is 135 DEG C.
7. tunnel in cold area anti-freezing and heat-insulating system according to claim 6, is characterized in that: described dewatering installation comprises aluminium alloys catch basin, vertical drainage pipe, longitudinal drainage pipe, transverse drain and central row ditch; Described aluminium alloys catch basin is overall U-shaped birdsmouth; Described aluminium alloys catch basin is connected by vertical drainage pipe, longitudinal drainage pipe and transverse drain and central row ditch successively; Described aluminium alloys catch basin and the bottom in gap formed between aluminium film and the secondary lining of tunnel in cold area connect; The width being provided with gap between described aluminium film and the secondary lining of tunnel in cold area is less than or equal to the width of aluminium alloys catch basin.
8. tunnel in cold area anti-freezing and heat-insulating system according to claim 7, is characterized in that: described aluminium film is overall structure or Split type structure; The thickness of described aluminium film is not more than 0.3 mm; When described aluminium film is Split type structure, described aluminium film is superposed by multi-disc aluminium film and supports; The fabric width of described every sheet aluminium film is 1 ~ 3 m; Described steel corrugated sheet is Q235-A hot rolled steel plate, and the thickness of described steel corrugated sheet is not more than 1.2 mm, and the crest height of described steel corrugated sheet is 18 mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520204413.1U CN204691792U (en) | 2015-04-07 | 2015-04-07 | A kind of tunnel in cold area anti-freezing and heat-insulating system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520204413.1U CN204691792U (en) | 2015-04-07 | 2015-04-07 | A kind of tunnel in cold area anti-freezing and heat-insulating system |
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| CN204691792U true CN204691792U (en) | 2015-10-07 |
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| CN201520204413.1U Withdrawn - After Issue CN204691792U (en) | 2015-04-07 | 2015-04-07 | A kind of tunnel in cold area anti-freezing and heat-insulating system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775833A (en) * | 2015-04-07 | 2015-07-15 | 山西省交通科学研究院 | Cold region tunnel anti-freezing insulation system and anti-freezing insulation construction method |
| CN108361050A (en) * | 2018-05-17 | 2018-08-03 | 云南交投集团公路建设有限公司 | A kind of waterproof system for vcehicular tunnel corrugated steel preliminary bracing structure |
| CN109441481A (en) * | 2018-11-21 | 2019-03-08 | 中铁十局集团第五工程有限公司 | A kind of tunnel lining structure of High aititude cold district freeze thawing resistance disaster |
-
2015
- 2015-04-07 CN CN201520204413.1U patent/CN204691792U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775833A (en) * | 2015-04-07 | 2015-07-15 | 山西省交通科学研究院 | Cold region tunnel anti-freezing insulation system and anti-freezing insulation construction method |
| CN104775833B (en) * | 2015-04-07 | 2016-08-24 | 山西省交通科学研究院 | A kind of tunnel in cold area anti-freezing and heat-insulating system and anti-freezing and heat-insulating construction method |
| CN108361050A (en) * | 2018-05-17 | 2018-08-03 | 云南交投集团公路建设有限公司 | A kind of waterproof system for vcehicular tunnel corrugated steel preliminary bracing structure |
| CN108361050B (en) * | 2018-05-17 | 2020-09-04 | 云南交投集团公路建设有限公司 | Waterproof system for corrugated steel primary support structure of highway tunnel |
| CN109441481A (en) * | 2018-11-21 | 2019-03-08 | 中铁十局集团第五工程有限公司 | A kind of tunnel lining structure of High aititude cold district freeze thawing resistance disaster |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151007 Effective date of abandoning: 20160824 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |