肖昭然;杨清晨;赵云;郭凤伟;

• 1:河南工业大学土木工程学院
• 2:软弱土与环境土工教育部重点实验室(浙江大学)

摘要(Abstract)：

针对山区机场填挖交替的非均匀道基结构形式，采用半解析有限单元法，建立飞机-道面结构-道基动力相互作用模型，在山区机场不同工况条件下，对飞机沿跑道匀速滑行阶段中，飞机单轮动载下道基土体的附加动应力结果进行了求解分析.研究结果表明：坡比1∶2时，土单元体的竖向动应力和剪切动应力随观察点靠近交界面而逐步增大，并在距离交界面-2 m位置处出现应力极值，可达均匀道基相应深度处的1.4和1.3倍；不同深度处的竖向动应力和剪切动应力随飞机移速增加或填方区刚度增加均呈增加趋势；随着坡比变缓，竖向动应力整体呈增加趋势，而剪切动应力整体呈减小趋势，应力极值出现位置离交界面的距离增加.

关键词(KeyWords)： 岩土工程;非均匀道基;半解析有限单元法;单轮动载;附加动应力

Abstract:

Keywords:

基金项目(Foundation): 河南省科技厅自然科学项目（152107000008）;; 软弱土与环境土工教育部重点实验室（浙江大学）开放基金资助项目（2019P03）;; 河南工业大学高层次人才科研启动基金资助项目（31401175）

作者(Authors): 肖昭然;杨清晨;赵云;郭凤伟;

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