登入
選單
返回
Google圖書搜尋
Comparative Studies of Backcalculated Results from FWDs with Different Loading Duration
T. Nishizawa
A. Kasahara
Y. Kikuta
K. Matsui
出版
ASTM International
, 2000
URL
http://books.google.com.hk/books?id=Ds96zgEACAAJ&hl=&source=gbs_api
註釋
The falling weight deflectometer (FWD) test applies an impulsive force on the surface of pavement and measures surface deflections at several locations. Although the test is dynamic, static backcalculation is commonly conducted to estimate pavement layer moduli using peak values of the impulsive force and surface deflections. However, falling weight defiectometers produced by the different manufacturers often differs in loading duration. The difference may affect backcalculation results, because the FWD test is dynamic in nature.
