Structural Evaluation of Pavement by Backcalculation

被引：0
|
作者：
Matsui, Kunihito [1 ]
Ozawa, Yoshiaki [2 ]
Higashi, Shigeo [3 ]
机构：
[1] Tokyo Denki Univ, Coll Sci & Engn, Tokyo 3500394, Japan
[2] Cent Techno Inc, Tokyo 1030001, Japan
[3] Kajima Road Co Ltd, Res Inst, Tokyo 1820036, Japan
来源：
CJWPT 2009: PROCEEDINGS OF THE 5TH CHINA-JAPAN WORKSHOP ON PAVEMENT TECHNOLOGIES | 2009年
关键词：
Backcalculation; FWD; Hankel transformation; FFT; Multilayered half-space; Voigt model; Wave propagation; BACK-CALCULATION;
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
A new method of structural evaluation (W-BALM) has been developed using the histories of impulsive force and surface deflections measured by falling weight deflectometers (FWD). It is assumed that pavement is composed of a multilayered half-space with Voigt type material characteristics. Surface deflections are obtained by analytically solving a wave propagation problem using Hankel transformation and fast Fourier transform (FFT). Voigt model parameters of pavement layers are determined such that computed surface deflections coincide with measured by using the Gauss-Newton method. The results are compared with those from BALM (static Back Analysis for Layer Moduli) and those from D-BALM (Dynamic Back Analysis for Layer Moduli). It is found that W-BALM and D-BALM yield similar results but differ from the results of BALM.
引用
收藏
页码：260 / +
页数：2
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