Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Thermal protection structure and method for frozen soil roadbed protection
The invention relates to a thermal protection structure and method for protecting a frozen soil roadbed, and the thermal protection structure is a multilayer structure formed by the alternate overlapping of a material A and a material B which are larger in difference of thermal conductivity coefficients, is laid under the roadbed, and covers the frozen soil roadbed to be protected. According to the roadbed material for thermal protection of the frozen soil roadbed, the heat conduction direction can be effectively controlled according to the properties of a thermal metamaterial. When the air temperature changes and rises, heat conducted by the pavement structure can flow away, the heat is prevented from entering the frozen soil roadbed, the heat entering the frozen soil roadbed in the warmseason is reduced, freezing and thawing of frozen soil are relieved, and upper limit degradation of the frozen soil is avoided; due to the fact that part of metal is adopted, the roadbed strength canbe improved. The metamaterial is simple in component, simple in preparation process and low in cost.
本发明涉及一种用于冻土路基保护热防护结构及方法，该热防护结构是由两类导热系数相差较大的材料A及材料B交替重叠形成的多层结构，辅设于路基下并将待保护的冻土路基覆盖。本发明的冻土路基热防护的路基材料，根据热超构材料性质，能有效控制热传导方向。当气温变化，温度升高时，可以使路面结构传导的热量流走，阻止热量进入冻土路基内部，减小暖季进入冻土路基中的热量，缓解冻土的冻融，避免冻土上限退化；本发明由于采用部分金属，能提高路基强度。超构材料成分简单，制备工艺简单，成本低。
Thermal protection structure and method for frozen soil roadbed protection
The invention relates to a thermal protection structure and method for protecting a frozen soil roadbed, and the thermal protection structure is a multilayer structure formed by the alternate overlapping of a material A and a material B which are larger in difference of thermal conductivity coefficients, is laid under the roadbed, and covers the frozen soil roadbed to be protected. According to the roadbed material for thermal protection of the frozen soil roadbed, the heat conduction direction can be effectively controlled according to the properties of a thermal metamaterial. When the air temperature changes and rises, heat conducted by the pavement structure can flow away, the heat is prevented from entering the frozen soil roadbed, the heat entering the frozen soil roadbed in the warmseason is reduced, freezing and thawing of frozen soil are relieved, and upper limit degradation of the frozen soil is avoided; due to the fact that part of metal is adopted, the roadbed strength canbe improved. The metamaterial is simple in component, simple in preparation process and low in cost.
本发明涉及一种用于冻土路基保护热防护结构及方法，该热防护结构是由两类导热系数相差较大的材料A及材料B交替重叠形成的多层结构，辅设于路基下并将待保护的冻土路基覆盖。本发明的冻土路基热防护的路基材料，根据热超构材料性质，能有效控制热传导方向。当气温变化，温度升高时，可以使路面结构传导的热量流走，阻止热量进入冻土路基内部，减小暖季进入冻土路基中的热量，缓解冻土的冻融，避免冻土上限退化；本发明由于采用部分金属，能提高路基强度。超构材料成分简单，制备工艺简单，成本低。
Thermal protection structure and method for frozen soil roadbed protection
一种用于冻土路基保护热防护结构及方法
NI YUSHAN (Autor:in) / FENG HUOLEI (Autor:in) / DENG XUAN (Autor:in)
03.11.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
,
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
Roadbed slope protection method and roadbed slope structure
| Europäisches Patentamt | 2023
Roadbed slope protection device and roadbed slope protection method
| Europäisches Patentamt | 2021
Freeze injury protection system for tramcar roadbed in frozen soil area and use method
| Europäisches Patentamt | 2020