CN1502747A - Thermal-insulating cold-conductive device for protecting frozen soil - Google Patents
Thermal-insulating cold-conductive device for protecting frozen soil Download PDFInfo
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- CN1502747A CN1502747A CNA02139573XA CN02139573A CN1502747A CN 1502747 A CN1502747 A CN 1502747A CN A02139573X A CNA02139573X A CN A02139573XA CN 02139573 A CN02139573 A CN 02139573A CN 1502747 A CN1502747 A CN 1502747A
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Abstract
The present invention relates to a heat-insulating cold-transferring equipment for protecting frozen earth. It is formed from grid skeleton which is made of heat-insulating material and high-molecular material, and between all the grids there are ventilating pipes which are mutually communicated and alternatively arranged to form internal ventilation, and at the three-way ventilating pipe vent place there is a valve. Said invention utilizes the property of heat-insulating material to make the heat quantity of summer can not be transferred into foundation soil layer, and in the winter the three-way ventilation pipe orifice can be opened, the cold air can be blown into the interior of ventilation pipe so as to attain the goal of protecting frozen earth and preventing it form being molten.
Description
Technical field
The present invention relates to a kind of heat insulation biography device for cooling of protecting frozen soil.
Background technology
Qinghai-Tibet Railway Golmud to the Lhasa section of World Focusing, 1118 kilometers of total lengths.Wherein the length by the ever-frozen ground district just has 632 kilometers.Frozen soil is the Qinghai-Tibet Railway design and builds the subject matter that solves, and promptly mainly solves frost heave in the seasonal frozen ground district, mainly solves thaw collapse in the ever-frozen ground district.The ever-frozen ground of Qinghai-Tibet Platean belongs to high temperature frozen soil mostly, very easily is subjected to engineering and artificial factor and produces thaw subsidence.In order to guarantee that Qinghai-Tibet Railway frozen earth roadbed (ground) in build and operation process does not produce thaw subsidence, ensure that the perforation of circuit is without hindrance, traffic safety, this task are that scientific and technical personnel, engineers and technicians demand the technical issues that need to address urgently.
Content of the present invention
Purpose of the present invention is according to Qinghai-Tibet ever-frozen ground (high temperature ever-frozen ground) natural climate condition, and features such as factor of natural environment in line with consumes energy, free from environmental pollution not, are utilized the heat-proof quality of heat insulating material, the heat in isolated summer; Utilize the principle that air chimney conduction cold air in winter keeps or the firm ground soil layer is not melted to make a kind of heat insulation biography device for cooling again.Thereby reaching protection frozen soil is not melted; Solve the technical barrier that Qinghai-Tibet Railway passes through permafrost region.
The object of the present invention is achieved like this:
A kind of heat insulation biography device for cooling that is used to protect frozen soil, the grid frame of being made by heat insulating material and macromolecular material is formed, has the air chimney that mutual perforation interlocks to be connected to form interior ventilation between each grid, and three-dimensional air chimney passage port has valve.
So-called heat insulating material is an extruded polystyrene XPS plate, also can be hard polyurethane fat cystosepiment.
Grid frame can also be a metal material, can be concrete material, can be the fragment of brick of sintering.
The shape of grid pipeline can be circle, semicircle, square, triangle.
Advantage of the present invention and beneficial effect are:
1, economical and practical.Utilize architectural feature of the present invention, seal the three-dimensional ventilation mouth of pipe summer, the thermal current that does not allow summer carries out convection current in interior air chimney, and the heat that next heat insulating material completely cuts off summer prevents to carry out conduction of heat; Open the three-dimensional ventilation mouth of pipe winter.Allow cold wind blow into and the multidirectional convection current of generation in air chimney, cold energy is directly conducted in the foundation soil, do not melted, make frozen soil layer be in low-temperature condition all the time, solved the technical problem of Qinghai-Tibet Railway frozen soil engineering thereby reach protection frozen soil.
2, consumes energy is not preserved the ecological environment.Heat insulating material and grid frame all can be shaped in plant produced, transport the job site to and directly lay, and permafrost region is not produced big man's activity.
3, valve can be according to wind direction and wind-force size, or closes, or opens, and remains the convection current of cold air in winter in interior ventilating duct, makes the frozen soil foundation soil stabilization and is not melted.
Description of drawings
Fig. 1 is a schematic diagram of the present invention
Fig. 2 is the schematic diagram of grid frame air chimney of the present invention
Concrete embodiment
A kind of square heat insulation biography device for cooling that is used to protect frozen soil; form by the grid frame 2 of polystyrene XPS plate and macromolecular material making; have the staggered air chimney 3 of mutual perforation to be connected to form interior ventilation 4 between each grid, the passage port of three-dimensional air chimney 5 has valve 6.
Utilize the heat-proof quality of heat insulating material summer, isolated heat conducts to frozen soil foundation, and next seals the three-dimensional ventilation mouth of pipe, the hot blast that does not allow summer convection current in air chimney.Open the three-dimensional ventilation mouth of pipe 5 winter, allow cold wind blow valve 6 open, air chimney 3 in entering, and in air chimney, produce multidirectional convection current.Thermal current rises, and cold air replenishes, and makes frozen soil be in low-temperature condition all the time.Do not melted thereby reach maintenance or stable Permafrost Area foundation soil, solved the purpose that the high temperature ever-frozen ground is degenerated.
Claims (4)
1, a kind of heat insulation biography device for cooling that is used to protect frozen soil; it is characterized in that: the grid frame (2) that it is made by heat insulating material (1) and macromolecular material is formed; have the air chimney (3) of mutual perforation to be connected to form interior ventilation (4) between each grid, three-dimensional air chimney (5) passage port has valve (6).
2, according to the described a kind of heat insulation biography device for cooling that is used to protect frozen soil of claim 1, it is characterized in that: so-called heat insulating material (1) is an extruded polystyrene XPS plate, also can be hard polyurethane fat cystosepiment.
3, according to the described a kind of heat insulation biography device for cooling that is used to protect frozen soil of claim 1, it is characterized in that: grid frame (3) can also be a metal material, can be concrete material, can be the fragment of brick of sintering.
4, according to the described a kind of heat insulation biography device for cooling that is used to protect frozen soil of claim 1, it is characterized in that: the shape of grid pipeline can be circle, semicircle, square, triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02139573XA CN100419160C (en) | 2002-11-27 | 2002-11-27 | Thermal-insulating cold-conductive device for protecting frozen soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02139573XA CN100419160C (en) | 2002-11-27 | 2002-11-27 | Thermal-insulating cold-conductive device for protecting frozen soil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1502747A true CN1502747A (en) | 2004-06-09 |
| CN100419160C CN100419160C (en) | 2008-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB02139573XA Expired - Fee Related CN100419160C (en) | 2002-11-27 | 2002-11-27 | Thermal-insulating cold-conductive device for protecting frozen soil |
Country Status (1)
| Country | Link |
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| CN (1) | CN100419160C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100357521C (en) * | 2005-08-23 | 2007-12-26 | 中国科学院寒区旱区环境与工程研究所 | Composite ventilating and cold energy gathering roadbed |
| CN100368636C (en) * | 2005-04-04 | 2008-02-13 | 中国科学院寒区旱区环境与工程研究所 | Hollow concrete block for protecting perenial frozen soil road bed and slope |
| CN100374661C (en) * | 2005-09-28 | 2008-03-12 | 中国科学院寒区旱区环境与工程研究所 | Natural cold-energy variator of heat conductivity coefficient |
| CN104480822A (en) * | 2014-12-12 | 2015-04-01 | 中交第一公路勘察设计研究院有限公司 | Mandatory diffuse type cooling ventilating pipeline system for large-scale frozen earth roadbed and construction method thereof |
| CN104480821A (en) * | 2014-12-12 | 2015-04-01 | 中交第一公路勘察设计研究院有限公司 | Heat-insulating cold-conducting structure for cooling large-scale frozen earth roadbed more than 20 m |
| CN105088913A (en) * | 2015-09-10 | 2015-11-25 | 东南大学 | Subgrade structure in permafrost region |
| CN105887605A (en) * | 2016-05-06 | 2016-08-24 | 兰州交通大学 | Roadbed frost heaving and thaw settlement resistant device based on stress relieving method |
| CN105926397A (en) * | 2016-05-06 | 2016-09-07 | 兰州交通大学 | Four-directional decompression and self-restoring device for preventing frostbite swelling and thaw collapse of subgrade |
| CN105951553A (en) * | 2016-05-06 | 2016-09-21 | 兰州交通大学 | Existing roadbed frost damage prevention device capable of achieving two-way pressure reduction and self-reset |
| CN112342858A (en) * | 2020-10-27 | 2021-02-09 | 东南大学 | Permafrost region precast hollow slab base pavement structure |
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| JPS541519A (en) * | 1977-06-03 | 1979-01-08 | Hitachi Ltd | Pad spring device for car |
| JPS59233015A (en) * | 1983-06-16 | 1984-12-27 | Yoshizawa Sekkai Kogyo Kk | Excavation of frozen soil in freezing work and reforming work of excavated soil |
| CN87106072A (en) * | 1987-09-03 | 1988-05-25 | 黑龙江省水利科学研究所 | Thermal insulation foundation for clough |
| JP2754419B2 (en) * | 1990-06-14 | 1998-05-20 | 株式会社フジクラ | Ground freezing method using heat pipe |
| RU2010919C1 (en) * | 1991-07-26 | 1994-04-15 | Кондратьев Валентин Георгиевич | Embankment on severe icy permafrost grounds |
| JPH07207693A (en) * | 1994-01-10 | 1995-08-08 | Hitoshi Mori | Insulating pca-board |
| CN2533200Y (en) * | 2002-01-17 | 2003-01-29 | 徐州市中煤轻钢建筑新技术有限公司 | Movable workshop |
-
2002
- 2002-11-27 CN CNB02139573XA patent/CN100419160C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368636C (en) * | 2005-04-04 | 2008-02-13 | 中国科学院寒区旱区环境与工程研究所 | Hollow concrete block for protecting perenial frozen soil road bed and slope |
| CN100357521C (en) * | 2005-08-23 | 2007-12-26 | 中国科学院寒区旱区环境与工程研究所 | Composite ventilating and cold energy gathering roadbed |
| CN100374661C (en) * | 2005-09-28 | 2008-03-12 | 中国科学院寒区旱区环境与工程研究所 | Natural cold-energy variator of heat conductivity coefficient |
| CN104480822A (en) * | 2014-12-12 | 2015-04-01 | 中交第一公路勘察设计研究院有限公司 | Mandatory diffuse type cooling ventilating pipeline system for large-scale frozen earth roadbed and construction method thereof |
| CN104480821A (en) * | 2014-12-12 | 2015-04-01 | 中交第一公路勘察设计研究院有限公司 | Heat-insulating cold-conducting structure for cooling large-scale frozen earth roadbed more than 20 m |
| CN104480822B (en) * | 2014-12-12 | 2016-07-06 | 中交第一公路勘察设计研究院有限公司 | Large scale frozen earth roadbed pressure disperse formula cooling duct system and construction method |
| CN105088913A (en) * | 2015-09-10 | 2015-11-25 | 东南大学 | Subgrade structure in permafrost region |
| CN105887605A (en) * | 2016-05-06 | 2016-08-24 | 兰州交通大学 | Roadbed frost heaving and thaw settlement resistant device based on stress relieving method |
| CN105926397A (en) * | 2016-05-06 | 2016-09-07 | 兰州交通大学 | Four-directional decompression and self-restoring device for preventing frostbite swelling and thaw collapse of subgrade |
| CN105951553A (en) * | 2016-05-06 | 2016-09-21 | 兰州交通大学 | Existing roadbed frost damage prevention device capable of achieving two-way pressure reduction and self-reset |
| CN105951553B (en) * | 2016-05-06 | 2018-04-03 | 兰州交通大学 | A kind of existing roadbed frost damage prevention device of achievable bidirectional decompression and Self-resetting |
| CN112342858A (en) * | 2020-10-27 | 2021-02-09 | 东南大学 | Permafrost region precast hollow slab base pavement structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100419160C (en) | 2008-09-17 |
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Granted publication date: 20080917 Termination date: 20111127 |