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无损测试评定机场道面,早已是公认的,而且又是很需要的一种评定方法。联邦航空局在第150/5370～11号咨询通报中,叙述了无损测试法的最新改进和补充,这些改进和补充是,测试组合道面方法、决定弯沉盆相对刚度半径方法和补强层厚度计算方法。本文就这部分内容进行介绍。一、背景资料机场道面无损测试,给道面评定和补强层设计提供了一个快速、经济的方法。早在1972年联邦航空局在美国陆军工程兵沃透汇斯试验站开始无损测试法的研究。测试仪器是用该站的WESl6千磅振动仪
Non-destructive testing to assess the airport pavement, has long been recognized, but also a very necessary assessment method. In its Advisory Circular Nos. 150 / 5370-11, the FAA described the recent improvements and additions to the NDT methodology that tested the combined facet approach, the method of determining the relative stiffness radius of the bend bowl, and the reinforcement layer Thickness calculation method. This article describes this part. First, the background information Non-destructive testing of the airport pavement, to the surface assessment and reinforcement design provides a fast, economical method. As early as 1972, the FAA started a non-destructive testing study at the Warburg Wariner test station of the United States Army. The test equipment was the WESl6 thousand-pound vibrometer at this station