CN103835725A - Antifreezing and insulating tunnel in cold region - Google Patents
Antifreezing and insulating tunnel in cold region Download PDFInfo
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- CN103835725A CN103835725A CN201410079350.1A CN201410079350A CN103835725A CN 103835725 A CN103835725 A CN 103835725A CN 201410079350 A CN201410079350 A CN 201410079350A CN 103835725 A CN103835725 A CN 103835725A
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Abstract
The invention discloses an antifreezing and insulating tunnel in a cold region. The antifreezing and insulating tunnel comprises a primary tunnel lining, a tunnel waterproof plate, a secondary tunnel lining and a fireproof plate. A gap is arranged between the secondary tunnel lining and the fireproof plate. The antifreezing and insulating tunnel further comprises inflatable bags which are arranged in the gap. The invention further discloses a manufacturing method for the antifreezing and insulating tunnel in the cold region. The antifreezing and insulating tunnel is simple in structure; traditional polyurethane insulating materials are replaced by the sealed inflatable bags, heat conductivity coefficient of sealed gas is approximately one half of that of the polyurethane insulating materials identical in thickness, and the sealed inflatable bags are filled with gas by the aid of low heat conductivity of the sealed gas and are arranged between the secondary tunnel lining and the fireproof plate; synchronous freezing and melting of surrounding rocks different in height on the same cross section can be realized by adjusting filling degree of the inflatable bags; compared with polyurethane insulating materials, the inflatable bags can effectively save material purchase cost.
Description
Technical field
The present invention relates to anti-freezing and heat-insulating tunnel, a kind of cold district.
Background technology
For the freeze injury of prevention tunnel in cold area, lay certain thickness insulation layer at tunnel double-lining inner surface, insulation layer thickness is relevant with tunnel surrounding ground temperature with temperature in hole, conventionally gets 4 ~ 8cm.In engineering application, find, existing insulation layer exists following shortcoming with not enough: 1. heat insulating material cost is high, has greatly increased the construction cost in tunnel, taking the thick polyurethane heat insulation material of 5cm as example, every square meter cost is about 300 yuan, and longitudinal every linear meter(lin.m.) is about 6000 yuan; 2. the performance of being on active service declines year by year, and in hole, in wet environment, Tunnel Water Leakage and hole, temperature is repeatedly under variation effect, and the thermal insulation of heat insulating material variation year by year, until lost efficacy, need to overhaul year by year, changes frequent; 3. temperature and country rock ground temperature there are differences on time and space in Tunnel, and polyurethane insulation coating is as solid heat insulating material, and the tunnel lining that cannot meet same section differing heights place behind country rock is freezed and melted synchronism.Melt the phase in the spring, tunnel top country rock first melts, and melts after arch springing place country rock, causes tunnel lining underground water behind cannot be drained in longitudinal drainage ditch, easily causes tunnel lining surface seep, hangs ice and the disease such as icy on road; In freezing period, tunnel bottom country rock first freezes, freeze after the country rock of top, and the underground water of tunnel upper cannot enter in longitudinal drainage ditch, causes equally tunnel lining surface seep, hangs ice and the disease such as icy on road.
Therefore, need anti-freezing and heat-insulating tunnel, a kind of Xin Han district to address the above problem.
Summary of the invention
For solving the deficiency of tunnel in cold area anti-freezing and heat-insulating in above-mentioned prior art, the object of the present invention is to provide anti-freezing and heat-insulating tunnel, a kind of better cold district.
For solving the problems of the technologies described above, the technical scheme that anti-freezing and heat-insulating tunnel, cold district of the present invention adopts is as follows:
Anti-freezing and heat-insulating tunnel, a kind of cold district, comprises the first lining in tunnel, anchor bar of waterproof plate in tunnels, tunnel double-lining and PLASTIC LAMINATED, between described tunnel double-lining and PLASTIC LAMINATED, is provided with space, also comprises air bag, and described air bag is arranged in described space.
Further, in described air bag, be provided with firing equipment.Heater is installed in air bag, has been saved tunnel space, without increasing tunnel excavation radius, save construction cost.In severe cold area, only cannot avoid the generation of tunnel surrounding frost-heave force at tunnel double-lining outside installation air bag, auxiliary heating equipment need to be installed in air bag, avoid tunnel surrounding generation frost heave.In the time that country rock has frost heave, according to country rock temperature, start the firing equipment in airbag, prevent tunnel surrounding generation frost heave.
Further, in described air bag, be provided with temperature pick up.Temperature pick up can be monitored the temperature in air bag.
Further, on described air bag, be provided with charge and exhaust pipe, described charge and exhaust pipe is communicated with described air bag, connects with journey along the described charge and exhaust pipe of the described air bag at anti-freezing and heat-insulating tunnel axis direction sustained height place of described cold district.
Further, described air bag is rubber bag.Inflated rubber bag is convenient to install, and saves mounting cost.Closely knit in order to ensure filling between PLASTIC LAMINATED and two linings and between adjacent air bag, air bag adopts has certain expansile rubber bag.Simultaneously caulking gum air bag is not subject to that wet environment in hole, treatment technology for tunnel seepage and temperature change repeatedly etc. affects, and long service performance is good.
Further, on described tunnel double-lining, be provided with hook, be provided with suspension button on described air bag, described hook and described suspension button are connected.
Inventive principle: in freezing period, at first arch springing place, tunnel air bag low temperature is full of to air, successively abutment wall to the air bag at vault place is full of to air subsequently, final whole section forms the anti-freezing and heat-insulating layer of a sealing; Melt the phase in the spring, first the air in the air bag of emptying bottom, guarantee that bottom country rock first melts, form unobstructed drainage system, according to monitor temperature, from bottom to up, the air in emptying air bag successively, until the country rock that freezes in whole tunnel cross-section all melts, avoid the spring to melt the freezing damage in tunnel that the phase causes because of impeded drainage.
Beneficial effect: cold district of the present invention anti-freezing and heat-insulating tunnel structure is simple, utilize sealing air bag to replace traditional polyurethane heat insulation material, the coefficient of thermal conductivity of sealing gas is about condition of equivalent thickness polyurethane heat insulation material 1/2nd, utilize the low heat conductivity of sealing gas, gassy in the air bag of sealing, is arranged between tunnel double-lining and PLASTIC LAMINATED.By adjusting the filling operation of air bag, can realize synchronously freezing and melting of same section differing heights place's country rock.According to tunnel cross section differing heights place country rock ground temperature and temperature distribution situation, adjust the filling extent of air bag.With respect to polyurethane heat insulation material, adopt air bag can effectively save material acquisition expenses.
Brief description of the drawings
Fig. 1 is the profile in anti-freezing and heat-insulating tunnel, cold district of the present invention;
Fig. 2 is the plane outspread drawing in anti-freezing and heat-insulating tunnel, cold district of the present invention;
Fig. 3 is the cross-sectional drawing of the air bag in anti-freezing and heat-insulating tunnel, cold district of the present invention;
Fig. 4 is the plane outspread drawing of the air bag in anti-freezing and heat-insulating tunnel, cold district of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
Refer to shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, anti-freezing and heat-insulating tunnel, cold district of the present invention, comprises just lining 1, anchor bar of waterproof plate in tunnels 2, tunnel double-lining 3 and PLASTIC LAMINATED 5 of tunnel, between tunnel double-lining 3 and PLASTIC LAMINATED 5, is provided with space, also comprise air bag 4, air bag 4 is arranged in space.
In air bag 4, be provided with firing equipment 8.At the interior installation heater of air bag 4, save tunnel space, without increasing tunnel excavation radius, save construction cost.In severe cold area, only cannot avoid the generation of tunnel surrounding frost-heave force at tunnel double-lining 3 outsides installation air bags 4, need to, at the interior installation auxiliary heating of air bag 4 equipment 8, avoid tunnel surrounding generation frost heave.In air bag 4, be provided with temperature pick up 9.Temperature pick up 9 can be monitored the temperature in air bag 4.On air bag 4, be provided with charge and exhaust pipe 6, charge and exhaust pipe 6 is communicated with air bag 4, and the charge and exhaust pipe 6 of the air bag 4 at anti-freezing and heat-insulating tunnel axis direction sustained height place of Yan Han district connects with journey.
On tunnel double-lining 3, be provided with hook 10, be provided with suspension button on air bag 4, hook 10 and suspension button are connected.
embodiment 1:
1. customize the rubber inflatable bag of certain thickness and width, assisted heating device is installed in rubber inflatable bag and is arranged temperature pick up, install in rubber inflatable bag bottom and hang button;
2. clear up tunnel double-lining surface, on tunnel double-lining surface, the hook for suspension rubber air bag is installed;
3. utilize inflator pump to inflate rubber bag, check for the first time the sealing of rubber inflatable bag;
4. rubber inflatable bag is suspended on to tunnel double-lining external surface;
5. utilize charge, exhaust pipeline that the rubber inflatable bag at tunnel axis direction sustained height place is connected with journey;
6. carrying out, before PLASTIC LAMINATED installation, checking for the second time the sealing of rubber inflatable bag;
7. carry out PLASTIC LAMINATED installation, in PLASTIC LAMINATED installation process, note the protection to rubber inflatable bag, avoid scratching, produce gas leak phenomenon;
8. after PLASTIC LAMINATED installation, check for the third time the sealing of rubber inflatable bag.
Inventive principle: in freezing period, at first arch springing place, tunnel air bag 4 low temperature is full of to air, successively abutment wall to the air bag 4 at vault place is full of to air subsequently, final whole section forms the anti-freezing and heat-insulating layer of a sealing; Melt the phase in the spring, first the air in emptying bottom air bag 4, guarantee that bottom country rock first melts, form unobstructed drainage system, according to monitor temperature, from bottom to up, the air in emptying air bag 4 successively, until the country rock that freezes in whole tunnel cross-section all melts, avoid the spring to melt the freezing damage in tunnel that the phase causes because of impeded drainage.In the time that country rock has frost heave, according to country rock temperature, open the heater in airbag, prevent that tunnel surrounding from freezing.
Cold district of the present invention anti-freezing and heat-insulating tunnel structure is simple, utilize sealing air bag to replace traditional polyurethane heat insulation material, the coefficient of thermal conductivity of sealing gas is about condition of equivalent thickness polyurethane heat insulation material 1/2nd, utilize the low heat conductivity of sealing gas, gassy in the air bag of sealing, is arranged between tunnel double-lining 3 and PLASTIC LAMINATED 5.By adjusting the filling operation of air bag 4, can realize synchronously freezing and melting of same section differing heights place's country rock.According to tunnel cross section differing heights place country rock ground temperature and temperature distribution situation, adjust the filling extent of air bag 4.With respect to polyurethane heat insulation material, adopt air bag 4 can effectively save material acquisition expenses.
The invention also discloses the preparation method in anti-freezing and heat-insulating tunnel, a kind of cold district,
(1), between tunnel double-lining 3 and PLASTIC LAMINATED 5, space is set, air bag 4 is installed in space, on air bag 4, is provided with charge and exhaust pipe 6; In air bag 4, be provided with temperature pick up 9, temperature pick up 9 can be monitored the temperature in air bag 4.The charge and exhaust pipe 6 of the air bag 4 at anti-freezing and heat-insulating tunnel axis direction sustained height place of Yan Han district connects with journey.In air bag 4, be provided with firing equipment 8.At the interior installation heater of air bag 4, save tunnel space, without increasing tunnel excavation radius, save construction cost.In severe cold area, only cannot avoid the generation of tunnel surrounding frost-heave force at tunnel double-lining 3 outsides installation air bags 4, need to, at the interior installation auxiliary heat supplying of air bag 4 equipment, avoid tunnel surrounding generation frost heave.
(2), utilize charge and exhaust pipe 6 to inflate the space of filling between tunnel double-lining 3 and PLASTIC LAMINATED 5 in air bag 4.
Inventive principle:
The coefficient of thermal conductivity of sealing gas is about condition of equivalent thickness polyurethane heat insulation material 1/2nd, utilizes the low heat conductivity of sealing gas, and gassy in the rubber bag of sealing, is arranged between tunnel double-lining 3 and PLASTIC LAMINATED 5, replaces traditional polyurethane insulation coating.By adjusting the filling operation of rubber inflatable bag 4, realize synchronously freezing and melting of same section differing heights place's country rock.According to tunnel cross section differing heights place country rock ground temperature and temperature distribution situation, adjust the filling extent of rubber inflatable bag 4.In freezing period, at first arch springing place, tunnel air bag 4 low temperature is full of to air, successively abutment wall to the air bag 4 at vault place is full of to air subsequently, final whole section forms the anti-freezing and heat-insulating layer of a sealing; Melt the phase in the spring, first the air in emptying bottom air bag 4, guarantee that bottom country rock first melts, form unobstructed drainage system, according to monitor temperature, from bottom to up, the air in emptying air bag 4 successively, until the country rock that freezes in whole tunnel cross-section all melts, avoid the spring to melt the freezing damage in tunnel that the phase causes because of impeded drainage.In the time that country rock has frost heave, should avoid tunnel surrounding to freeze.In severe cold area, only cannot avoid the generation of tunnel surrounding frost-heave force at tunnel double-lining 3 outsides installation air bags 4, auxiliary heat supplying equipment need to be installed in airbag, avoid tunnel surrounding generation frost heave.Closely knit in order to ensure filling between PLASTIC LAMINATED 5 and two linings and between adjacent air bag 4, air bag 4 adopts has certain expansile rubber bag.
Cold district of the present invention anti-freezing and heat-insulating tunnel preparation method is simple, simple in structure, utilize sealing air bag 4 to replace traditional polyurethane heat insulation material, the coefficient of thermal conductivity of sealing gas is about condition of equivalent thickness polyurethane heat insulation material 1/2nd, utilize the low heat conductivity of sealing gas, at the interior gassy of air bag 4 of sealing, be arranged between tunnel double-lining 3 and PLASTIC LAMINATED 5.By adjusting the filling operation of air bag 4, can realize synchronously freezing and melting of same section differing heights place's country rock.According to tunnel cross section differing heights place country rock ground temperature and temperature distribution situation, adjust the filling extent of air bag 4.By controlling the filling extent of tunnel hoop air bag, realize the synchronism that tunnel hoop country rock freezes and melts, avoid the generation of freezing damage in tunnel, anti-freezing and heat-insulating is effective.With respect to polyurethane heat insulation material, adopt air bag 4 can effectively save material acquisition expenses.
Below be only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
- Anti-freezing and heat-insulating tunnel, 1.Yi Zhonghan district, comprise that tunnel just serves as a contrast (1), anchor bar of waterproof plate in tunnels (2), tunnel double-lining (3) and PLASTIC LAMINATED (5), between described tunnel double-lining (3) and PLASTIC LAMINATED (5), be provided with space, it is characterized in that, also comprise air bag (4), described air bag (4) is arranged in described space.
- 2. anti-freezing and heat-insulating tunnel, cold district as claimed in claim 1, is characterized in that, described air bag is provided with firing equipment in (4).
- 3. anti-freezing and heat-insulating tunnel, cold district as claimed in claim 1, is characterized in that, described air bag is provided with temperature pick up in (4).
- 4. anti-freezing and heat-insulating tunnel, cold district as claimed in claim 1, it is characterized in that, on described air bag (4), be provided with charge and exhaust pipe (6), described charge and exhaust pipe (6) is communicated with described air bag (4), connects with journey along the described charge and exhaust pipe (6) of the described air bag (4) at anti-freezing and heat-insulating tunnel axis direction sustained height place of described cold district.
- 5. anti-freezing and heat-insulating tunnel, cold district as claimed in claim 1, is characterized in that, described air bag (4) is rubber bag.
- 6. anti-freezing and heat-insulating tunnel, cold district as claimed in claim 1, is characterized in that, described tunnel double-lining is provided with hook on (3), and described air bag is provided with suspension button on (4), and described hook and described suspension button are connected.
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| CN201410079350.1A CN103835725B (en) | 2014-03-05 | 2014-03-05 | Anti-freezing and heat-insulating tunnel, a kind of cold district |
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| CN201410079350.1A CN103835725B (en) | 2014-03-05 | 2014-03-05 | Anti-freezing and heat-insulating tunnel, a kind of cold district |
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| CN103835725B CN103835725B (en) | 2016-05-25 |
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Cited By (17)
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|---|---|---|---|---|
| CN104329103A (en) * | 2014-10-20 | 2015-02-04 | 长安大学 | Cold area tunnel heat-insulating composite support system and supporting method thereof |
| CN105863685A (en) * | 2016-06-12 | 2016-08-17 | 东南大学 | Phase change temperature-adjusting plate based anti-freezing thermal-insulation structure for tunnel and construction method of phase change temperature-adjusting plate based anti-freezing thermal-insulation structure for tunnel |
| CN106089263A (en) * | 2016-06-12 | 2016-11-09 | 东南大学 | Tunnel based on phase-changing and temperature-regulating gunite concrete anti-freezing and heat-insulating structure and construction method |
| CN106089264A (en) * | 2016-06-12 | 2016-11-09 | 东南大学 | Tunnel based on phase-changing and temperature-regulating concrete anti-freezing and heat-insulating structure and construction method |
| CN106089233A (en) * | 2016-06-12 | 2016-11-09 | 中国矿业大学 | A kind of freeze proof length calculation method of setting up defences of frozen soil tunnel Portal Section |
| CN106121674A (en) * | 2016-06-16 | 2016-11-16 | 西南交通大学 | A kind of, insulation waterproof for tunnel in cold area and the system of pressure regulation and apply method |
| CN106368722A (en) * | 2016-12-06 | 2017-02-01 | 中铁科学研究院有限公司 | Freezing prevention, thermal insulation and fire prevention integrated facility for tunnel in cold region |
| CN106524544A (en) * | 2016-12-16 | 2017-03-22 | 绍兴文理学院 | Energy tunnel inverted arch layer burying type ground temperature energy heat exchange system |
| CN106595103A (en) * | 2016-12-16 | 2017-04-26 | 绍兴文理学院 | Construction method of energy tunnel layer burned geothermal heat exchange system |
| CN106703838A (en) * | 2016-12-21 | 2017-05-24 | 山西省交通科学研究院 | Structure and method for processing plane shaped leaked water in operation tunnel |
| CN108194110A (en) * | 2018-01-31 | 2018-06-22 | 长安大学 | A kind of tunnel in cold area heat-insulation system and installation method |
| CN109209444A (en) * | 2018-11-21 | 2019-01-15 | 中铁十局集团第五工程有限公司 | The processing method of extremely frigid zones tunnel freeze thawing resistance disaster |
| CN109578028A (en) * | 2019-02-12 | 2019-04-05 | 河北交通职业技术学院 | Tunnel in cold area freezing prevention method |
| CN109882213A (en) * | 2019-04-24 | 2019-06-14 | 吉林大学 | A kind of novel tunnel in cold area anti-freezing and heat-insulating structure and its construction method |
| CN110319622A (en) * | 2019-05-15 | 2019-10-11 | 宁波工程学院 | High thermal conductivity earth temperature energy hot switching tunnel system and its construction method |
| CN111219196A (en) * | 2020-02-23 | 2020-06-02 | 中交第二航务工程局有限公司 | Functional structure for tunnel portal |
| CN114033421A (en) * | 2021-11-22 | 2022-02-11 | 中国科学院西北生态环境资源研究院 | Tunnel supporting system capable of preventing frost heaving damage and construction method |
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| CN104329103A (en) * | 2014-10-20 | 2015-02-04 | 长安大学 | Cold area tunnel heat-insulating composite support system and supporting method thereof |
| CN106089263B (en) * | 2016-06-12 | 2018-02-02 | 东南大学 | Tunnel anti-freezing and heat-insulating structure and construction and operation method based on phase-changing and temperature-regulating gunite concrete |
| CN105863685A (en) * | 2016-06-12 | 2016-08-17 | 东南大学 | Phase change temperature-adjusting plate based anti-freezing thermal-insulation structure for tunnel and construction method of phase change temperature-adjusting plate based anti-freezing thermal-insulation structure for tunnel |
| CN106089263A (en) * | 2016-06-12 | 2016-11-09 | 东南大学 | Tunnel based on phase-changing and temperature-regulating gunite concrete anti-freezing and heat-insulating structure and construction method |
| CN106089264A (en) * | 2016-06-12 | 2016-11-09 | 东南大学 | Tunnel based on phase-changing and temperature-regulating concrete anti-freezing and heat-insulating structure and construction method |
| CN106089233A (en) * | 2016-06-12 | 2016-11-09 | 中国矿业大学 | A kind of freeze proof length calculation method of setting up defences of frozen soil tunnel Portal Section |
| CN106089233B (en) * | 2016-06-12 | 2018-09-07 | 中国矿业大学 | A kind of freeze proof length calculation method of setting up defences of frozen soil tunnel Portal Section |
| CN106089264B (en) * | 2016-06-12 | 2018-02-02 | 东南大学 | Tunnel anti-freezing and heat-insulating structure and construction and operation method based on phase-changing and temperature-regulating concrete |
| CN105863685B (en) * | 2016-06-12 | 2017-11-28 | 东南大学 | Tunnel anti-freezing and heat-insulating structure and construction and operation method based on phase-changing and temperature-regulating plate |
| CN106121674A (en) * | 2016-06-16 | 2016-11-16 | 西南交通大学 | A kind of, insulation waterproof for tunnel in cold area and the system of pressure regulation and apply method |
| CN106121674B (en) * | 2016-06-16 | 2019-01-29 | 西南交通大学 | It is a kind of for tunnel in cold area waterproof, heat preservation and the system of pressure regulation and its to apply method |
| CN106368722A (en) * | 2016-12-06 | 2017-02-01 | 中铁科学研究院有限公司 | Freezing prevention, thermal insulation and fire prevention integrated facility for tunnel in cold region |
| CN106368722B (en) * | 2016-12-06 | 2018-12-07 | 中铁科学研究院有限公司 | A kind of tunnel in cold area anti-freezing and heat-insulating and integrated facility of preventing fires |
| CN106595103A (en) * | 2016-12-16 | 2017-04-26 | 绍兴文理学院 | Construction method of energy tunnel layer burned geothermal heat exchange system |
| CN106524544A (en) * | 2016-12-16 | 2017-03-22 | 绍兴文理学院 | Energy tunnel inverted arch layer burying type ground temperature energy heat exchange system |
| CN106703838A (en) * | 2016-12-21 | 2017-05-24 | 山西省交通科学研究院 | Structure and method for processing plane shaped leaked water in operation tunnel |
| CN108194110B (en) * | 2018-01-31 | 2023-07-18 | 长安大学 | Cold region tunnel heat preservation system and installation method |
| CN108194110A (en) * | 2018-01-31 | 2018-06-22 | 长安大学 | A kind of tunnel in cold area heat-insulation system and installation method |
| CN109209444A (en) * | 2018-11-21 | 2019-01-15 | 中铁十局集团第五工程有限公司 | The processing method of extremely frigid zones tunnel freeze thawing resistance disaster |
| CN109578028A (en) * | 2019-02-12 | 2019-04-05 | 河北交通职业技术学院 | Tunnel in cold area freezing prevention method |
| CN109882213A (en) * | 2019-04-24 | 2019-06-14 | 吉林大学 | A kind of novel tunnel in cold area anti-freezing and heat-insulating structure and its construction method |
| CN110319622A (en) * | 2019-05-15 | 2019-10-11 | 宁波工程学院 | High thermal conductivity earth temperature energy hot switching tunnel system and its construction method |
| CN111219196A (en) * | 2020-02-23 | 2020-06-02 | 中交第二航务工程局有限公司 | Functional structure for tunnel portal |
| CN111219196B (en) * | 2020-02-23 | 2021-08-31 | 中交第二航务工程局有限公司 | Functional structure for tunnel portal |
| CN114033421A (en) * | 2021-11-22 | 2022-02-11 | 中国科学院西北生态环境资源研究院 | Tunnel supporting system capable of preventing frost heaving damage and construction method |
| CN114033421B (en) * | 2021-11-22 | 2022-07-12 | 中国科学院西北生态环境资源研究院 | Tunnel supporting system capable of preventing frost heaving damage and construction method |
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