Paper Title:
The Study on Portable Falling Weight Deflectometer Based on the Elastic Half-Space Theory
  Abstract

As a quick, accurate and efficient inspecting equipment, the Portable Falling Weight Deflectometer (PFWD) is widely used in subgrade modulus evaluation in the foreign countries. However, most analysis methods used in the modulus back calculation of PFWD is based on the classical Boussinesq solution or empirical formulas, which could hardly reflect the resilient of subgrade accurately. In this paper, the elastic half-space theory is introduced into the analysis of modulus back calculation, and with the integral transform and the numerical analysis, this paper provides an approximate method to evaluate the elastic modulus of subgrade.

  Info
Periodical
Chapter
Chapter 1: Road and Railway Engineering
Edited by
Shucai Li
Pages
156-161
DOI
10.4028/www.scientific.net/AMM.97-98.156
Citation
D. C. Feng, W. X. Zuo, Y. Zhao, P. Cao, "The Study on Portable Falling Weight Deflectometer Based on the Elastic Half-Space Theory", Applied Mechanics and Materials, Vols. 97-98, pp. 156-161, 2011
Online since
September 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Dong Ni Chen, Hui Qi, Yong Shi
Abstract:The scattering of SH-wave caused by the subsurface circular cavities in an elastic half-space covered with an elastic layer was discussed,...
1908
Authors: Qiong Fen Wang, Yuan Cai Liu, Liang Cao, Ji Yao, Jian Feng Huang
Dynamic Mechanical Analysis, Optimization and Control
Abstract:Calculations of the end-plate semi-rigid joints are carried out with a FE-program ANSYS. Some results of the calculations are introduced in...
1625
Authors: Da Zhi Wu, Zhen Ying Zhang, Kai Fu Liu
Abstract:An analytical method is presented to investigate the torsional dynamic response of an elastic foundation resting on transversely isotropic...
764
Authors: Jiang Chang, Xue Gong, Zhi Hui Sun
Chapter 3: Green Information Record Material
Abstract:In this paper the vibration testing and Fast Fourier Transform(FFT) analysis detection on the basis of nondestructive testing method were...
348
Authors: Xu Shu Sun, Jian Lin Li, Shi Zhou, Jun Lei Bai
Chapter 14: Multi-Field Coupling Theory and its Applications
Abstract:According to the characteristics that permeability and elastic modulus vary with stress, the variation of elastic modulus of sandstone change...
2552