Equivalent wheel load factors for airfield pavements on stabilized base /

Bibliographic Details
Main Author:	Bendaña, Luis Julian, 1953-
Other Authors:	Haisler, Walter E. (degree committee member.), Hirsch, Teddy J. (degree committee member.), James, Mike E. (degree committee member.), Kohutek, Terry L. (degree committee member.)
Format:	Thesis Book
Language:	English
Published:	1988.
Subjects:	Pavements, Soil-cement > Testing. Runways (Aeronautics) Major civil engineering. Academic theses
Online Access:	ProQuest, Abstract Link to OAKTrust copy

Description
Abstract:	This dissertation presents a mechanistic design methodology that permits a rational computation of equivalent wheel load factors (EWLF) for airfield pavements with stabilized bases. It describes the functional and existing analytical procedures to compute EWLF. It discusses the applicability of linear elastic fracture mechanics to stabilized soil bases and reviews three different methods that can be used to compute stress intensity factors. Maximum transverse distribution factors and EWLF are computed and presented in tabular form for selected aircraft in order to estimate the number of equivalent strain repetitions of a standard aircraft. Two pavement design curves for base moduli of 200 and 400 ksi are presented based on the finding of this investigation, followed by three examples. The current FAA method for selecting the thicknesses of flexible pavements is compared with the method presented in the dissertation. The results presented herein show that the FAA method is unconservative (yields thinner pavements). This research has demonstrated that it is feasible and practical to compute the fatigue life of a stabilized cement base to predict the life of a pavement structure.
Item Description:	Typescript (photocopy). Vita. "Major subject: Civil Engineering."
Physical Description:	xi, 134 leaves : illustrations ; 29 cm
Bibliography:	Includes bibliographical references (leaves 125-129).