CN206429255U - A kind of tunnel in cold area Portal Section heat-preserving anti-freezing system - Google Patents
A kind of tunnel in cold area Portal Section heat-preserving anti-freezing system Download PDFInfo
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- CN206429255U CN206429255U CN201720080778.7U CN201720080778U CN206429255U CN 206429255 U CN206429255 U CN 206429255U CN 201720080778 U CN201720080778 U CN 201720080778U CN 206429255 U CN206429255 U CN 206429255U
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- tunnel
- drainage pipe
- portal section
- longitudinal drainage
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Abstract
The utility model is related to a kind of tunnel in cold area Portal Section heat-preserving anti-freezing system.Because Layers In Cold-area Tunnels out temperature is relatively low, Portal Section pumping equipment easily freezes, and has a strong impact on traffic safety, threatens tunnel structure stable, reduces the service life in tunnel, increases the maintenance cost in tunnel.The utility model sets the heating cable of ring between spray and preliminary bracing at the beginning of the Tunnel above inverted arch are sprayed again, heating cable two ends are extended at longitudinal drainage pipe and Longitudinal extending, only winter opens or winter prescribes a time limit unlatching, ensure that rock infiltration is not freezed around hole, and then reduce operation phase tunnel maintenance cost, it is ensured that operation security.
Description
Technical field
The utility model is related to the antifreeze technical field of drainage in tunnel, and in particular to a kind of tunnel in cold area Portal Section heat-preserving anti-freezing
System.
Background technology
By the end of the end of the year 2015, highway in China tunnel is at 14006,12683.9km.Wherein, at super long tunnel 744,
At 3299.8km, long tunnel 3138,5376.8km, tunnel construction technology constantly improve, the record in various tunnels is constantly refreshed.
With the continuous expansion of highway in China tunnel construction scale and quantity, particular surroundings and Special Rock tunnel are also more and more, example
Such as China northeast, the high and cold tunnel in Qinghai and Tibet region, the tunnel of extremely frigid zones is shown according to investigation, due to Insulation not
When Portal Section pumping equipment easily freezes, and waterproof and water drainage system failure causes underground water seepage to freeze, and these freeze injuries have a strong impact on row
Car safety, the maintenance cost for threatening stable tunnel structure, the service life in reduction tunnel and increase tunnel.Annual sub-regional divisions
Door and relevant traffic enterprise are to these and evil Tunnel Repair maintenance costs incredible amount, and freeze injury is serious and form ice in the tunnel of part
Plug is scrapped.Search to the bottom reason, lining cutting behind drainage system freezes to be major influence factors.Therefore for such phenomenon, research and development
It is a kind of that there is larger economic implications and social effect for Layers In Cold-area Tunnels Portal Section heat-preserving anti-freezing system.
The content of the invention
The purpose of this utility model is to provide a kind of tunnel in cold area Portal Section heat-preserving anti-freezing system, by strengthening lining cutting behind
The frost resistance of drainage system, it is ensured that drainage effect, and then reduce operation phase tunnel maintenance cost, it is ensured that operation security.
The technical scheme that the utility model is used for：
A kind of tunnel in cold area Portal Section heat-preserving anti-freezing system, including ring direction drainpipe, longitudinal drainage pipe, transverse drain and
Central drain, longitudinal drainage pipe is located at tunnel arch foot, and central drain is located at inverted arch tunnel centerline, ring direction drainpipe
Longitudinal drainage pipe is accessed, longitudinal drainage pipe accesses central drain by transverse drain, it is characterised in that：
The heating cable of ring, heating electric are set between spray and preliminary bracing are sprayed again at the beginning of the Tunnel above inverted arch
Cable two ends are extended at longitudinal drainage pipe and Longitudinal extending.
Heating cable sprays at the beginning of being fixed on preliminary bracing by sleeve, cable fastener and bolt.
The surface that preliminary bracing is sprayed again is equipped with splash guard.
Longitudinal drainage bottom of the tube is provided with longitudinal drainage pipe concrete base, and top is covered with rubble, longitudinal heating electric
Cable is located in rubble.
The utility model has advantages below：
1st, because the tunnel is in cold district, conduit draining is only set, it is impossible to solve the problems, such as frost, therefore introduce electric tracing system
System, only winter are opened or winter prescribes a time limit unlatchings, it is ensured that concrete temperature seeps water in aqueduct and do not freezed higher than 0 DEG C.
2nd, electric tracer heating system is a kind of radial pattern heating system, using heating wire as heating agent, will by making heating cable be powered
Electric energy changes into heat energy, passes to heated object, and by the protection of outer layer heat-barrier material, with reach heating that system needs,
Heat insulation effect.
3rd, because tunnel water proofing plate temperature effectively uses scope in+70 degrees Celsius~-70 degrees Celsius, electric tracer heating system hair
Electric heating cable can meet demand less than 70 degrees Celsius, i.e., will not destroy tunnel waterproofing construction, heat can be efficiently transmitted again.
Brief description of the drawings
Fig. 1 is the utility model layout drawing.
Fig. 2 shows the embedded schematic diagram of electric tracer heating system for I-I sections in Fig. 1.
Fig. 3 is the schematic diagram of A portions amplification display electric tracer heating system foundation position laying in Fig. 1.
Fig. 4 is heating cable schematic diagram.
In figure, 1- preliminary bracings, 2- heating cables, 3- splash guards, 4- secondary linings, 5- transverse drains, 6- is longitudinally arranged
Water pipe, 7- central drains are sprayed at the beginning of 8- preliminary bracings, and 9- preliminary bracings are sprayed again, 10- rubbles, 11- longitudinal drainage pipe concrete pipes
Seat, 12- anti-corrosion overcoats, 13- iron tin brass wire shieldings, 14- parallel bus, 15- insulating barriers, 16- automatic control conductive plastics.
Embodiment
The utility model is described in detail with reference to embodiment.
A kind of tunnel in cold area Portal Section heat-preserving anti-freezing system that the utility model is related to, ring direction drainpipe, longitudinal drainage pipe
6th, transverse drain 5 and central drain 7, longitudinal drainage pipe 6 are located at tunnel arch foot, and central drain 7 is located at inverted arch tunnel
Centerline, ring direction drainpipe access longitudinal drainage pipe 6, longitudinal drainage pipe 6 accesses central drain 7 by transverse drain 5.
The heating cable 2 that ring is set between 9,2 liang of heating cable are sprayed in spray 8 and preliminary bracing at the beginning of Tunnel above inverted arch again
End is extended at longitudinal drainage pipe 6 and Longitudinal extending.Heating cable 2 is fixed on branch at initial stage by sleeve, cable fastener and bolt
Shield just spray 8.
The surface that preliminary bracing sprays 9 again is equipped with splash guard 3.The bottom of longitudinal drainage pipe 6 is provided with longitudinal drainage pipe coagulation
Native base 11, top is located in rubble 10 covered with rubble 10, longitudinal heating cable 2.
Heating cable 2 is moulded by anti-corrosion overcoat 12, iron tin brass wire shielding 13, parallel bus 14, insulating barrier 15 and automatic control conduction
Material 16 is constituted.
Construction procedure of the present utility model is as follows：
1）Tunnel cavern excavation, first 10 ~ 15cm of pneumatically placed concrete；
2）Electric tracer heating system is laid in first pneumatically placed concrete surface sleeve pipe by longitudinal pitch 2m, it is general to lay 20 ~ 30m of unit,
It is laid in that temperature is low and the easy tunnel portal that may occur freeze injury；
3）5 ~ 10cm of multiple pneumatically placed concrete, covers electric tracer heating system；
4）Lining cutting behind drainage system is installed（Ring, vertical, horizontal drainpipe）；
5）Foundation position is along longitudinal drainage pipe with laying electric tracer heating system；
6）Electric tracer heating system is longitudinally closed, and is verified；
7）Electrified regulation is checked, check；
8）Lay splash guard；
9）Secondary lining is poured, construction terminates.
The utility model construction is simple, and short construction period, difficulty of construction is small, and expense is low, and later stage operation maintenance is convenient, automatically
Temperature control heating and anti-freezing, effect is preferable, but electric tracer heating system installs relative complex.
Content of the present utility model is not limited to cited by embodiment, and those of ordinary skill in the art are new by reading this practicality
Type specification and any equivalent conversion taken technical solutions of the utility model, are claim institute of the present utility model
Cover.
Claims (4)
1. a kind of tunnel in cold area Portal Section heat-preserving anti-freezing system, including ring direction drainpipe, longitudinal drainage pipe（6）, transverse drain
（5）And central drain（7）, longitudinal drainage pipe（6）At tunnel arch foot, central drain（7）Positioned at inverted arch tunnel center
At line, ring direction drainpipe access longitudinal drainage pipe（6）, longitudinal drainage pipe（6）Pass through transverse drain（5）Access central drain
（7）, it is characterised in that：
Sprayed at the beginning of Tunnel above inverted arch（8）Sprayed again with preliminary bracing（9）Between set ring heating cable（2）,
Heating cable（2）Two ends extend to longitudinal drainage pipe（6）Locate and Longitudinal extending.
2. a kind of tunnel in cold area Portal Section heat-preserving anti-freezing system according to claim 1, it is characterised in that：
Heating cable（2）Sprayed at the beginning of being fixed on preliminary bracing by sleeve, cable fastener and bolt（8）.
3. a kind of tunnel in cold area Portal Section heat-preserving anti-freezing system according to claim 1, it is characterised in that：
Preliminary bracing is sprayed again（9）Surface be equipped with splash guard（3）.
4. a kind of tunnel in cold area Portal Section heat-preserving anti-freezing system according to claim 1, it is characterised in that：
Longitudinal drainage pipe（6）Bottom is provided with longitudinal drainage pipe concrete base（11）, top is covered with rubble（10）, it is longitudinal
Heating cable（2）Positioned at rubble（10）It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720080778.7U CN206429255U (en) | 2017-01-22 | 2017-01-22 | A kind of tunnel in cold area Portal Section heat-preserving anti-freezing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720080778.7U CN206429255U (en) | 2017-01-22 | 2017-01-22 | A kind of tunnel in cold area Portal Section heat-preserving anti-freezing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206429255U true CN206429255U (en) | 2017-08-22 |
Family
ID=59590332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720080778.7U Active CN206429255U (en) | 2017-01-22 | 2017-01-22 | A kind of tunnel in cold area Portal Section heat-preserving anti-freezing system |
Country Status (1)
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| CN (1) | CN206429255U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108316952A (en) * | 2018-04-09 | 2018-07-24 | 铁科创恒新材料科技有限公司 | Extremely frigid zones tunnel insulation waterproof and water drainage system |
| CN108757029A (en) * | 2018-07-26 | 2018-11-06 | 吉林大学 | A kind of waterproof/drainage structure for tunnel in cold area ever-frozen ground section |
| CN111022117A (en) * | 2019-10-16 | 2020-04-17 | 新疆交通建设集团股份有限公司 | Solar heating anti-freezing system for high-altitude tunnel drain pipe |
| CN111636919A (en) * | 2020-06-11 | 2020-09-08 | 大连交通大学 | Anti-freezing water drainage device and method for tunnel in plateau severe cold region |
-
2017
- 2017-01-22 CN CN201720080778.7U patent/CN206429255U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108316952A (en) * | 2018-04-09 | 2018-07-24 | 铁科创恒新材料科技有限公司 | Extremely frigid zones tunnel insulation waterproof and water drainage system |
| CN108316952B (en) * | 2018-04-09 | 2024-04-09 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Tunnel heat-preservation and drainage-prevention system in alpine region |
| CN108757029A (en) * | 2018-07-26 | 2018-11-06 | 吉林大学 | A kind of waterproof/drainage structure for tunnel in cold area ever-frozen ground section |
| CN108757029B (en) * | 2018-07-26 | 2023-11-07 | 吉林大学 | Water-proof and drainage structure for permafrost section of tunnel in cold region |
| CN111022117A (en) * | 2019-10-16 | 2020-04-17 | 新疆交通建设集团股份有限公司 | Solar heating anti-freezing system for high-altitude tunnel drain pipe |
| CN111636919A (en) * | 2020-06-11 | 2020-09-08 | 大连交通大学 | Anti-freezing water drainage device and method for tunnel in plateau severe cold region |
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