拼装式铝道面板下土基变形预测模型

周少辉; 蔡良才; 许巍; 岑国平

doi:10.3969/j.issn.0258-2724.2016.04.012

拼装式铝道面板下土基变形预测模型

doi: 10.3969/j.issn.0258-2724.2016.04.012

详细信息

作者简介:
周少辉(1987-),男,博士研究生,研究方向为机场道面工程,电话:13468828170,E-mail:zshui617@126.com

通讯作者:
蔡良才(1960-),男,教授,博士,研究方向为机场规划设计、机场道面工程,电话:029-84787008,E-mail:Liangcai007@126.com

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出版历程
- 收稿日期: 2015-05-28
- 刊出日期: 2016-08-25

Predictive Model of Subgrade Deformation Beneath Aluminum Sandwich Panel

摘要

摘要: 为了分析飞机重复荷载作用时拼装式道面板下土基塑性变形情况,对4种不同厚度、强度的蜂窝铝夹芯道面板进行了足尺通行加载试验,测试了土基在不同轮载作用次数下的塑性变形.通过数据拟合分析确定了特定铝道面板下土基变形关于通行次数及基层强度的简化模型.对简化模型进行修正后,将新模型与其他传统预估模型进行了对比,结果表明:土基变形与通行次数的对数成正比例关系,与土质道面强度成反比例关系,道面板D铺设在高强度基层上时,道面板的疲劳开裂是道面结构失效的主要原因;道面板D铺设在70 MPa的基层上时,采用沥青道面设计公式、美军土质道面设计公式、本文推导公式分别计算得出的最大通行次数为4.071013、288、487990次.
- 简易机场 /
- 拼装式铝道面板 /
- 飞机荷载 /
- 通行试验 /
- 土基 /
- 塑性变形 /
- 预估模型
Abstract: In order to study the subgrade deformation beneath the sandwich panel which was subjected to repeated aircraft load, four aluminum honeycomb sandwich panels with different thickness and strength were trafficked and the soil plastic deformation was surveyed. The performance data were analyzed and presented graphically to build a simple predictive model including traffic times and base strength. The simplify model was revised and compared with conventional models. The results show that the soil deformation is in proportion to the logarithm of times, and inversely proportional to base strength. Fatigue cracking is the main failure reason of pavement structures. The maximum traffic times calculated by three different design equations are 4.071013, 288, and 487 990 respectively when pavement D is installed over the soil with 70MPa strength.
- expedient airfield /
- aluminum pavement /
- aircraft load /
- traffic loading test /
- subgrade /
- deformation /
- predictive model

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参考文献(19)

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