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首页> 外文会议>Third International Symposium on Nondestructive Testing of Pavements and Backcalculation of Moduli, Jun 30-Jul 1, 1999, Seattle, Washington >Closed-Form and Semi-Closed-Form Algorithms for Backcalculation of Concrete Pavement Parameters
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Closed-Form and Semi-Closed-Form Algorithms for Backcalculation of Concrete Pavement Parameters

机译：混凝土路面参数反算的封闭式和半封闭式算法

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摘要

This paper presents the development of a family of closed-form and semi-closed-form backcalculation algorithms for nondestructive evaluation of rigid-pavement layer properties. Using measured surface deflections as input, these closed-form algorithms were developed for a rigid pavement slab supported on one of the following foundations: (ⅰ) a Winkler (i.e. liquid) foundation, (ⅱ) an elastic solid foundation, and (ⅲ) a two-layer elastic solid foundation. These closed-form algorithms were next employed to develop semi-closed-form algorithms for nondestructive evaluation of rigid pavements with two slab layers. All the algorithms were developed for execution on personal computers. The formulation of the algorithms and the corresponding methods of solution are presented. It is also highlighted that the closed-form algorithms can be used to evaluate the quality of measured deflections and to single out erroneous deflection sensor readings.
机译：本文介绍了用于刚性路面层特性的非破坏性评估的封闭形式和半封闭形式反算算法系列的开发。这些闭合形式的算法使用测得的表面挠度作为输入，针对在以下基础之一上支撑的刚性路面平板进行了开发：（ⅰ）Winkler（即液体）基础，（ⅱ）弹性固体基础和（ⅲ）两层弹性固体基础。接下来，将这些封闭形式的算法用于开发半封闭形式的算法，以对具有两个平板层的刚性路面进行无损评估。所有算法都是为在个人计算机上执行而开发的。给出了算法的公式和相应的求解方法。还需要强调的是，封闭形式的算法可用于评估测得的挠度的质量并挑选出错误的挠度传感器读数。

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