CN101566073B - Dual-source heat-supply water-drainage antifreezing method for construction joint of tunnel in cold area - Google Patents
Dual-source heat-supply water-drainage antifreezing method for construction joint of tunnel in cold area Download PDFInfo
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- CN101566073B CN101566073B CN2009100435750A CN200910043575A CN101566073B CN 101566073 B CN101566073 B CN 101566073B CN 2009100435750 A CN2009100435750 A CN 2009100435750A CN 200910043575 A CN200910043575 A CN 200910043575A CN 101566073 B CN101566073 B CN 101566073B
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- 238000010276 construction Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims description 17
- 238000012544 monitoring process Methods 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 230000008014 freezing Effects 0.000 abstract description 10
- 238000007710 freezing Methods 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 241000283014 Dama Species 0.000 abstract 1
- JNSGIVNNHKGGRU-JYRVWZFOSA-N diethoxyphosphinothioyl (2z)-2-(2-amino-1,3-thiazol-4-yl)-2-methoxyiminoacetate Chemical compound CCOP(=S)(OCC)OC(=O)C(=N/OC)\C1=CSC(N)=N1 JNSGIVNNHKGGRU-JYRVWZFOSA-N 0.000 abstract 1
- 239000003657 drainage water Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 238000009413 insulation Methods 0.000 description 7
- 230000009746 freeze damage Effects 0.000 description 5
- 230000002528 anti-freeze Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000011435 rock Substances 0.000 description 3
- 229920002472 Starch Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000009416 shuttering Methods 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Abstract
The invention discloses a dual-source heat-supply water-drainage antifreezing method for construction joint of tunnel in cold area, which adopts two energy resource forms of hot gas and electric energy to carry out heat supply and water drainage at the drainage passage of the construction joint in small range; and the hot gas and the electric energy can be used independently or in combination. Based on a drainage water stopper, the method provides a dual-source heat supply pipe to carry out heat supply and thaw in small range by section and time on the construction joint of the tunnel by usingtwo energy resources of hot air and electric energy, prevents the drainage pipeline at the construction joint from being frozen and blocked, realizes effectively drainage, thus avoiding freezing dama ge to the construction joint of tunnel in cold areas.
Description
Technical field
The present invention relates to a kind of dual-source heat-supply water-drainage antifreezing method of constuction joint place of the underground construction that is used for cold district, particularly traffic tunnel.
Background technology
In tunnel and underground construction, because splash guard normal appearance in laying and operation process is damaged, cause underground water to enter between splash guard and the secondary lining, and ooze out by the weak link of secondary liner structure, as constuction joint, shrinkage joint and settlement joint (being called for short three seams), and concrete crack and leakiness position, wherein the seepage at three seam places accounts for more than 80%.At cold district, when temperature was lower than zero degree in the tunnel, various freeze injuries will appear freezing to cause in seepage place.
Waterproof and insulation are the main method that prevents the tunnel in cold area freeze injury at present.Tunnel and underground construction three seam waterproof common methods be provided with middle buried water stop, in buried sealing rod and back sticking type waterstop etc.In order to accomplish do not have to press sealing, along with going deep into of research, but progressively promote various types of draining waterstops in the engineering at present, but but as in buried draining waterstop, back sticking type draining waterstop etc.But the characteristics of draining waterstop are to be provided with the drainage channel that communicates with tunnel drainage system at the middle part of waterstop, but the rapid drainage infiltration prevents to seep water and oozes out from the lining cutting surface.But at tunnel in cold area, still there is freezing blocking problem in these drainage channels.The many employings in tunnel at present are provided with insulation layer and prevent freezing damage in tunnel.Adopt the problem of the antifreeze existence of insulation layer to be: melt after freezing after the tunnel water handling system is inevitable under the effect of insulation layer (1), causes the spring to melt phase tunnel arch springing drainage system and stop up, and causes arch ring large tracts of land seepage; (2) the insulation layer cost is very high, and construction quality requires very high, careless slightly, promptly may cause the insulation layer partial failure, and enlarges rapidly under the freeze thawing ringing, causes whole inefficacies; (3) the insulation layer durability is undesirable, and operation maintenance cost is very high.
Generally speaking, heat supply is antifreeze is the basic method that solves the tunnel in cold area freeze injury.The report that adopts heating installation comprehensively to heat in the tunnel was once arranged both at home and abroad.This comprehensive heating method is only applicable to the tunnel that close urban district possesses the heating condition on the one hand, and on the other hand, because tunnel cross-section is big, air constantly flows, and heating energy consumption is high comprehensively.And in fact, antifreeze of tunnel needs to guarantee to freeze to melt earlier to get final product after the tunnel drainage system downstream is than the upstream.
Summary of the invention
Technical problem to be solved by this invention provides a kind of drainage channel that prevents and freezes obstruction, realizes effective draining, avoids construction joint of tunnel in cold area the construction joint of tunnel in cold area dual-source heat-supply water-drainage antifreezing method of freeze injury to occur with lower energy consumption.
In order to solve the problems of the technologies described above, construction joint of tunnel in cold area dual-source heat-supply water-drainage antifreezing method provided by the invention, adopt hot gas and two kinds of energy forms of electric energy that the drainage channel at constuction joint place is carried out heat-supply water-drainage among a small circle, hot gas and electric energy are used singly or in combination.
But but with the dual-source heat-supply pipe be arranged at back sticking type draining waterstop and in the back side of drainage channel of buried draining waterstop, the dual-source heat-supply pipe is trapezoidal, rectangle or circular rubber or polyvinyl chloride hose, cavity heat supply gas in the middle of the dual-source heat-supply pipe passes through, thereby drainage channel is carried out heat supply.Simultaneously, penetrate the ribbon heater in the dual-source heat-supply pipe, generate heat behind the connection power supply, can carry out heat supply drainage channel.
Tunnel cross section is divided into left arch springing heated zones, arch ring heated zones and right arch springing heated zones,, only realizes left arch springing heated zones and the heat supply of right arch springing heated zones by the control instruction of heat supply control system, or to the heating of whole cross section.The requirement of control is to guarantee to freeze to melt earlier after tunnel arch springing and abutment wall place drainage channel are than arch ring place drainage channel.Melt the phase in freezing period or spring, arch springing partly enters subzero temperature and arch ring during still for positive temperature, can only heat both sides abutment wall heated zones.When the full section in tunnel all is subzero temperature, can heat whole cross section.
Begin from tunnel portal, per 3～5 lining cutting circulation is divided into 1 heated zones, by the control instruction of heat supply control system, controls the opening and closing of each section heating system.Each section is provided with the temperature of temperature pick up in order to collection vault, haunch and arch springing, and is provided with program control relay, by the opening and closing of programme-control ribbon heater.
According to the temperature on the different section vaults of real-time monitoring, haunch and lining cutting surface, arch springing place, by the judgement of single-chip microcomputer, the operation condition of decision respective section heating system.
Adopt the construction joint of tunnel in cold area dual-source heat-supply water-drainage antifreezing method of technique scheme, adopt hot gas and two kinds of energy forms of electric energy that the drainage channel at constuction joint place is carried out heat-supply water-drainage among a small circle, to reach the antifreeze purpose of tunnel in cold area, hot gas and electric energy can use separately, use also capable of being combined.Hot gas can be directed to the warm air of tunnel interlude, also can or undergroundly obtain underground heat by the circulating system and generates at country rock.Electric energy can directly be obtained by the tunnel power supply-distribution system.The present invention adopts hot air and two kinds of energy of electric energy to carry out among a small circle, divide section, heat supply at times to thaw to construction joint of tunnel, prevents that constuction joint place drainage channel from freezing to stop up, and realizes effective draining, thereby avoids construction joint of tunnel in cold area freeze injury to occur.
The invention has the advantages that: but by near the zonule the drainage channel of constuction joint place draining waterstop is heated, guarantee that drainage channel melts the unobstructed of phase in freezing period and spring, heat time heating time is short, and heated perimeter is little, can significantly cut down the consumption of energy; Warm air and country rock ground thermosetting hot air with the middle part, tunnel are main thermal source, and economic environmental protection is aided with the electric energy heating at times of branch section, guarantees effect, is convenient to control.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
But Fig. 1 is the back sticking type draining waterstop schematic diagram that trapezoidal dual-source heat-supply pipe is installed;
But Fig. 2 is the back sticking type draining waterstop schematic diagram that rectangle dual-source heat-supply pipe is installed;
But Fig. 3 is the schematic diagram that back sticking type draining waterstop is installed the last die bush building concrete of after-pouring;
Fig. 4 is the schematic diagram that the dual-source heat-supply pipe is installed after the form removal of last die bush building concrete;
But the view of dual-source heat-supply type back sticking type draining waterstop when Fig. 5 is cast back one die bush building concrete;
Fig. 6 is that the dual-source heat-supply section is divided and the control schematic diagram on the tunnel cross section;
Fig. 7 is that the dual-source heat-supply section is divided and the control schematic diagram on the tunnel profile.
Among the figure: the 1-ribbon base, the 2-drainage channel, 3-water proof fin, 4-only starches the drainage band, 5-detects groove, 6-dual-source heat-supply pipe, 7-cavity, 8-ribbon heater, the 9-country rock, 10-preliminary bracing, 11-splash guard, 12-retaining head mould plate, 13-lining shuttering chassis, the last die bush building concrete of 14-, a die bush building concrete behind the 15-, the 16-constuction joint, 17-relay, 18-left side arch springing heated zones, 19-arch ring heated zones, the right arch springing heated zones of 20-, 21-hot fluid heating tube.
The specific embodiment
Referring to illustrated in figures 1 and 2, but the agent structure of dual-source heat-supply type back sticking type draining waterstop is a ribbon base 1, but ribbon base 1, drainage channel 2, water proof fin 3, only starch drainage band 4, detect that groove 5 is common to constitute common back sticking type draining waterstop.In the back side intermediate groove of two drainage channels 2, be provided with dual-source heat-supply pipe 6.Dual-source heat-supply pipe 6 can adopt macromolecular materials such as polyvinyl chloride, rubber to make for trapezoidal, rectangle or circle.Cavity 7 is arranged in the dual-source heat-supply pipe 6, but heat donor fluid pass through, thereby drainage channel 2 is heated, prevent that it from freezing to stop up; Be installed with ribbon heater 8 in the cavity 7, can adopt electric heat supply, also can heat drainage channel 2.
Fig. 3～Fig. 5 is construction state diagram of the present invention.In tunnel and underground construction, during the last die bush building concrete 14 of casting and constructing seam 16, cold bonding is installed waterstop ribbon base 1 on the splash guard 11 of corresponding constuction joint 16 positions earlier, with lining shuttering chassis 13 location, and will keep off head mould plate 12 and be stuck in two grooves between the drainage channel 2, get final product concreting.Treat that last die bush building concrete 14 is a collapsible die after reaching intensity, dual-source heat-supply pipe 6 is installed in the groove between two drainage channels 2, behind reservation heat supply joint and the terminal, the template of back one die bush building concrete 15 can be installed, build back one die bush building concrete 15, and form constuction joint 16.
Fig. 6 and Fig. 7 are dual-source heat-supply pattern diagram of the present invention.At constuction joint 16 places of annular, be provided with the dual-source heat-supply pipe 6 of annular.Cavity 7 in the dual-source heat-supply pipe 6 is as a whole, is connected with hot fluid heating tube 21 at both sides arch springing place, carries out heat supply by hot fluid.Ribbon heater 8 in the cavity 7 is divided into three sections: left arch springing heated zones 18, arch ring heated zones 19 and right arch springing heated zones 20.By the control instruction of heat supply control system, only realize left arch springing heated zones 18 and right arch springing heated zones 20 heat supplies, or to the heating of whole cross section.The requirement of control is to guarantee to freeze to melt earlier after tunnel arch springing and abutment wall place drainage channel are than arch ring place drainage channel.Melt the phase in freezing period or spring, arch springing partly enters subzero temperature and arch ring during still for positive temperature, can only heat both sides abutment wall heated zones.When the full section in tunnel all is subzero temperature, can heat whole cross section.
Begin from tunnel portal, per 3～5 lining cutting circulation is divided into 1 heated zones, by the control instruction of heat supply control system, controls the opening and closing of each section heating system.Each section is provided with the temperature of temperature pick up in order to collection vault, haunch and arch springing, and is provided with program control relay 17, by the opening and closing of programme-control ribbon heater.
According to the temperature on the different section vaults of real-time monitoring, haunch and lining cutting surface, arch springing place, by the judgement of single-chip microcomputer, the operation condition of decision respective section heating system.
Claims (3)
1. construction joint of tunnel in cold area dual-source heat-supply water-drainage antifreezing method, adopt hot gas and two kinds of energy forms of electric energy that the drainage channel at constuction joint place is carried out heat-supply water-drainage among a small circle, hot gas and electric energy are used singly or in combination, it is characterized in that: but but with the dual-source heat-supply pipe be arranged at back sticking type draining waterstop and in the back side of drainage channel of buried draining waterstop, the dual-source heat-supply pipe is trapezoidal, rectangle or circular rubber or polyvinyl chloride hose, cavity heat supply gas in the middle of the dual-source heat-supply pipe passes through, thereby drainage channel is carried out heat supply, simultaneously, penetrate the ribbon heater in the dual-source heat-supply pipe, generate heat after being communicated with power supply, can carry out heat supply drainage channel.
2. construction joint of tunnel in cold area dual-source heat-supply water-drainage antifreezing method according to claim 1, it is characterized in that: tunnel cross section is divided into left arch springing heated zones, arch ring heated zones and right arch springing heated zones, control instruction by the heat supply control system, only realize left arch springing heated zones and the heat supply of right arch springing heated zones, or to the heating of whole cross section; Begin from tunnel portal, per 3～5 lining cutting circulation is divided into 1 heated zones, by the control instruction of heat supply control system, controls the opening and closing of each section heating system.
3. construction joint of tunnel in cold area dual-source heat-supply water-drainage antifreezing method according to claim 1 is characterized in that: according to the temperature on the different section vaults of real-time monitoring, haunch and lining cutting surface, arch springing place, and the operation condition of decision respective section heating system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100435750A CN101566073B (en) | 2009-06-03 | 2009-06-03 | Dual-source heat-supply water-drainage antifreezing method for construction joint of tunnel in cold area |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100435750A CN101566073B (en) | 2009-06-03 | 2009-06-03 | Dual-source heat-supply water-drainage antifreezing method for construction joint of tunnel in cold area |
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| CN101566073A CN101566073A (en) | 2009-10-28 |
| CN101566073B true CN101566073B (en) | 2011-12-14 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322276A (en) * | 2011-09-23 | 2012-01-18 | 厦门市路桥咨询监理有限公司 | Tunneling engineering freeze-proofing structure in seasonally frozen ground region |
| CN102678174B (en) * | 2012-05-28 | 2015-03-18 | 中交第一公路勘察设计研究院有限公司 | Arrangement method of tunnel drainage system passing through permafrost region and non-frozen ground region |
| CN103061789A (en) * | 2013-01-28 | 2013-04-24 | 中铁二院工程集团有限责任公司 | Sectionalized waterproof structure for high-water-pressure tunnels |
| CN103410530B (en) * | 2013-07-24 | 2015-09-16 | 中南大学 | Tunnel backing electric heating dewaxing pore-creating draining and heat supply means to prevent freezing |
| CN103835725B (en) * | 2014-03-05 | 2016-05-25 | 东南大学 | Anti-freezing and heat-insulating tunnel, a kind of cold district |
| CN108952774B (en) * | 2018-06-12 | 2019-04-23 | 济南城建集团有限公司 | A kind of method that tunnel double-lining construction joint leakage water blocking row combines punishment |
| CN111365040A (en) * | 2020-03-30 | 2020-07-03 | 中铁二院工程集团有限责任公司 | Cold-proof and anti-freezing system for tunnel in alpine region |
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|---|---|---|---|---|
| CN2702054Y (en) * | 2004-03-25 | 2005-05-25 | 长安大学 | Anti-freezing heat-insulating layer for cold area tunnel |
| CN1696474A (en) * | 2004-03-25 | 2005-11-16 | 长安大学 | Frost protection and heat insulator in use for preventing freezing damage in tunnels in cold area |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2702054Y (en) * | 2004-03-25 | 2005-05-25 | 长安大学 | Anti-freezing heat-insulating layer for cold area tunnel |
| CN1696474A (en) * | 2004-03-25 | 2005-11-16 | 长安大学 | Frost protection and heat insulator in use for preventing freezing damage in tunnels in cold area |
Non-Patent Citations (3)
| Title |
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| 宓荣三.寒区特长公路隧道的抗防冻技术.《石家庄铁路职业技术学院学报》.2006,第5卷(第3期),第68-72页. * |
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