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Pavement structure with asphalt-based isolating layer
The invention relates to the technical field of pavement construction, and particularly discloses a pavement structure with an asphalt-based isolating layer. The airport pavement structure comprises a composite pavement and drainage blind ditches formed in the two sides of the composite pavement. The composite pavement comprises a water-stable gravel layer, an asphalt-based isolation layer, a geotechnical cloth layer and a cement concrete layer which are sequentially laid from bottom to top. The asphalt-based isolation layer is formed by paving an asphalt mixture, the porosity design value of the asphalt-based isolation layer is 13-17%, and the drainage blind ditches are used for discharging accumulated water seeping from the two sides of the asphalt-based isolation layer. The asphalt-based isolation layer and the geotechnical cloth layer jointly reduce the probability of frost boiling and mud deposition on the surface layer of the pavement, and interference of the frost boiling and mud deposition on takeoff, landing and sliding of an airplane can be reduced.
本申请涉及路面施工技术领域,具体公开了一种具有沥青基隔离层的路面结构。机场路面结构包括复合路面以及设置在复合路面两侧的排水盲沟,复合路面包括自下而上依次铺设的水稳碎石层、沥青基隔离层、土工布层和水泥混凝土层;沥青基隔离层由沥青混合料铺筑而成,沥青基隔离层的孔隙率设计值为13‑17%,排水盲沟用于排放沥青基隔离层两侧渗出的积水。本申请的沥青基隔离层和土工布层共同降低了路面表层发生翻浆和积泥现象的概率,有助于减少翻浆和积泥现象对飞机起降滑行造成的干扰。
Pavement structure with asphalt-based isolating layer
The invention relates to the technical field of pavement construction, and particularly discloses a pavement structure with an asphalt-based isolating layer. The airport pavement structure comprises a composite pavement and drainage blind ditches formed in the two sides of the composite pavement. The composite pavement comprises a water-stable gravel layer, an asphalt-based isolation layer, a geotechnical cloth layer and a cement concrete layer which are sequentially laid from bottom to top. The asphalt-based isolation layer is formed by paving an asphalt mixture, the porosity design value of the asphalt-based isolation layer is 13-17%, and the drainage blind ditches are used for discharging accumulated water seeping from the two sides of the asphalt-based isolation layer. The asphalt-based isolation layer and the geotechnical cloth layer jointly reduce the probability of frost boiling and mud deposition on the surface layer of the pavement, and interference of the frost boiling and mud deposition on takeoff, landing and sliding of an airplane can be reduced.
本申请涉及路面施工技术领域,具体公开了一种具有沥青基隔离层的路面结构。机场路面结构包括复合路面以及设置在复合路面两侧的排水盲沟,复合路面包括自下而上依次铺设的水稳碎石层、沥青基隔离层、土工布层和水泥混凝土层;沥青基隔离层由沥青混合料铺筑而成,沥青基隔离层的孔隙率设计值为13‑17%,排水盲沟用于排放沥青基隔离层两侧渗出的积水。本申请的沥青基隔离层和土工布层共同降低了路面表层发生翻浆和积泥现象的概率,有助于减少翻浆和积泥现象对飞机起降滑行造成的干扰。
Pavement structure with asphalt-based isolating layer
一种具有沥青基隔离层的路面结构
ZHOU QINGYUE (Autor:in)
01.03.2024
Patent
Elektronische Ressource
Chinesisch
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