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强化草地道面土工格室材料性能及应用效果分析

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土工格室强化草地道面是一种新型的简易道面,在面向通用航空、应急救援等场景下的跑道建设中具有显著的技术优势.选择了一种典型的土工格室强化材料,通过室内试验研究了其力学性能(抗拉性能和抗压性能)和耐久性能(抗老化性能和抗侵蚀性能),并基于现场承载能力试验分析了其应用效果.结果表明:单个和2个拼装土工格室材料抗拉强度分别为6.62 MPa和1.09 MPa,抗拉模量分别为100.52 MPa和21.27 MPa;土工格室材料的抗压强度为101.09 MPa,抗压模量为93.60 MPa;高温、低温和紫外线影响下土工格室材料抗拉性能出现不同程度的下降,但仍具有一定的抗老化能力;土工格室材料不受水侵蚀的影响,除冰剂和汽油侵蚀后其抗拉性能下降,但不存在质量损失;在85%的压实度下,土工格室强化草地道面的回弹模量提升了 28%,表明土工格室材料对草地道面承载力有一定的强化效果.
An Analysis of Material Performance and Application Effects for Geo-Cell Reinforcing Grassy Pavements
The reinforced grassy pavement structure is a new type of simple pavement structure,and has significant technical advantages in the construction of runways for general aviation,emergency rescue and other scenarios.In this paper,a typical geo-cell reinforcement material is selected to study its mechanical properties(tensile and compressive properties)and durability properties(aging resistance and erosion re-sistance)through laboratory tests.And the application effects are analyzed based on the field bearing ca-pacity test.The results show that the tensile strength and tensile modulus of single and two assembled geo-cells are 6.62 MPa and 1.09 MPa,respectively.The tensile modulus is 100.52 MPa and 21.27 MPa re-spectively.The compressive strength and compressive modulus of geo-cell materials are 101.09 MPa and 93.60 MPa respectively.The tensile properties of geo-cell materials affected by high temperature,low temperature and ultraviolet rays decrease to a great extent,but they still have a certain anti-aging ability.The geo-cell material is not affected by water erosion,and its tensile performance decreases after the ero-sion of deicing agent and gasoline,but there is no mass loss.Under the compaction degree of 85%,the re-silience modulus of the geo-cell strengthened grassland pavement increase by 28%,and this indicates that the geo-cell material has a certain strengthening effect on the bearing capacity of the grassy pavement.

grassy pavementgeo-cellmechanical propertiesdurabilitybearing capacity

张馨方、赵磊明、廖羽、马鲁宽

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同济大学道路与交通工程教育部重点实验室,上海,201804

民航飞行区设施耐久与运行安全重点实验室,上海,201804

中体飞行(北京)体育产业发展有限公司,北京,100020

草地道面 土工格室 力学性能 耐久性能 承载力

国家自然科学基金

52008310

2024

空军工程大学学报
空军工程大学科研部

空军工程大学学报

CSTPCD北大核心
影响因子:0.55
ISSN:2097-1915
年,卷(期):2024.25(5)
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