A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to a cooling roadbed structure for a permafrost region, which comprises an embankment arranged on a permafrost roadbed, and is characterized in that the embankment is composed of a roadbed block stone layer, a coarse particle cushion layer, a thermal insulation layer and a pavement structure layer which are sequentially arranged from bottom to top; a plurality of groups of concrete prefabricated ventilation-sunshade structures are respectively arranged along the slope surfaces on the two sides of the embankment and the horizontal section of the slope toe; a geogrid is laid on the outer side of the concrete prefabricated ventilation-sunshade structure, and an isolation vegetation layer is attached to the outer side of the geogrid; the top surfaces of the concrete prefabricated ventilation-sunshade structure, the geogrid and the isolation vegetation layer are flush and are paved with dimension stones, and the top surfaces are higher than the top surface of the thermal insulation layer. Meanwhile, the invention further discloses a construction method of the roadbed structure. The method is high in practicability, simple and convenient to construct and low in cost, the demanded quantity of the block stones is reduced, the problem that the block stone layer is easily blocked by wind and sand in the long-term service process is effectively avoided, and the aim of protecting the permafrost of the roadbed is achieved.
本发明涉及一种用于多年冻土区的冷却路基结构，包括设在多年冻土路基上的路堤，其特征在于：路堤由自下往上依次设置的路基块石层、粗颗粒垫层、保温层和路面结构层构成；沿路堤两侧的坡面以及坡脚水平段分别设有若干组混凝土预制通风‑遮阳结构；混凝土预制通风‑遮阳结构的外侧铺设土工格栅，该土工格栅的外侧附着隔离植被层；混凝土预制通风‑遮阳结构、土工格栅和隔离植被层的顶面齐平并铺设有块石，且顶面高度大于保温层顶面的高度。同时，本发明还公开了该路基结构的施工方法。本发明实用性强、施工简单方便且成本低，减少了块石需求量，有效避免了长期服役过程中块石层易于被风沙堵塞的问题，实现了保护路基多年冻土的目的。
The invention relates to a cooling roadbed structure for a permafrost region, which comprises an embankment arranged on a permafrost roadbed, and is characterized in that the embankment is composed of a roadbed block stone layer, a coarse particle cushion layer, a thermal insulation layer and a pavement structure layer which are sequentially arranged from bottom to top; a plurality of groups of concrete prefabricated ventilation-sunshade structures are respectively arranged along the slope surfaces on the two sides of the embankment and the horizontal section of the slope toe; a geogrid is laid on the outer side of the concrete prefabricated ventilation-sunshade structure, and an isolation vegetation layer is attached to the outer side of the geogrid; the top surfaces of the concrete prefabricated ventilation-sunshade structure, the geogrid and the isolation vegetation layer are flush and are paved with dimension stones, and the top surfaces are higher than the top surface of the thermal insulation layer. Meanwhile, the invention further discloses a construction method of the roadbed structure. The method is high in practicability, simple and convenient to construct and low in cost, the demanded quantity of the block stones is reduced, the problem that the block stone layer is easily blocked by wind and sand in the long-term service process is effectively avoided, and the aim of protecting the permafrost of the roadbed is achieved.
本发明涉及一种用于多年冻土区的冷却路基结构，包括设在多年冻土路基上的路堤，其特征在于：路堤由自下往上依次设置的路基块石层、粗颗粒垫层、保温层和路面结构层构成；沿路堤两侧的坡面以及坡脚水平段分别设有若干组混凝土预制通风‑遮阳结构；混凝土预制通风‑遮阳结构的外侧铺设土工格栅，该土工格栅的外侧附着隔离植被层；混凝土预制通风‑遮阳结构、土工格栅和隔离植被层的顶面齐平并铺设有块石，且顶面高度大于保温层顶面的高度。同时，本发明还公开了该路基结构的施工方法。本发明实用性强、施工简单方便且成本低，减少了块石需求量，有效避免了长期服役过程中块石层易于被风沙堵塞的问题，实现了保护路基多年冻土的目的。
Cooling roadbed structure for permafrost region and construction method
一种用于多年冻土区的冷却路基结构及施工方法
2024-02-13
Patent
Electronic Resource
Chinese
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