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An automated inversion procedure for...

Ganji, Vahid.

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An automated inversion procedure for surface wave testing.

Record Type:	Electronic resources : Monograph/item
Title/Author:	An automated inversion procedure for surface wave testing./
Author:	Ganji, Vahid.
Description:	117 p.
Notes:	Source: Dissertation Abstracts International, Volume: 57-12, Section: B, page: 7639.
Contained By:	Dissertation Abstracts International57-12B.
Subject:	Engineering, Civil. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9717430
ISBN:	0591255960

An automated inversion procedure for surface wave testing.
Ganji, Vahid.

An automated inversion procedure for surface wave testing. - 117 p.

Source: Dissertation Abstracts International, Volume: 57-12, Section: B, page: 7639.

Thesis (Ph.D.)--Rutgers The State University of New Jersey - New Brunswick, 1997.

As has been addressed in many publications, the usual inversion procedures for SASW testing assume that only one Rayleigh mode is dominant and thus fail to give reliable results in irregular soil profiles where the shear wave velocity of the layers does not increase with depth. Many practical cases such as pavement systems fall into this category.

ISBN: 0591255960Subjects--Topical Terms:

783781
Engineering, Civil.

An automated inversion procedure for surface wave testing.
LDR:02190nmm 2200301 4500 001 1816462
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020 $a 0591255960
035 $a (UnM)AAI9717430
035 $a AAI9717430
040 $a UnM $c UnM
100 1 $a Ganji, Vahid. $3 1905841
245 1 3 $a An automated inversion procedure for surface wave testing.
300 $a 117 p.
500 $a Source: Dissertation Abstracts International, Volume: 57-12, Section: B, page: 7639.
500 $a Director: Nenad Gucunski.
502 $a Thesis (Ph.D.)--Rutgers The State University of New Jersey - New Brunswick, 1997.
520 $a As has been addressed in many publications, the usual inversion procedures for SASW testing assume that only one Rayleigh mode is dominant and thus fail to give reliable results in irregular soil profiles where the shear wave velocity of the layers does not increase with depth. Many practical cases such as pavement systems fall into this category.
520 $a An algorithm for the inversion of the SASW is presented that is based on the simulation of the SASW test. Simulation of the test includes the effect of all Rayleigh modes so that the algorithm is not limited to regular profiles. Artificial irregular profiles, including a profile with a soft layer trapped between two stiff layers, a profile with a stiff layer sandwiched between two soft layers, and a profile with softer layers at higher depths, as well as a pavement profile with a sharp contrast between shear wave velocity of surface and base layer, have all been successfully inverted.
520 $a The construction of the dispersion curve from the experimental data has also been automated and implemented in a program 'AutoSASW' along with the inversion technique. Some of the problems in construction of the dispersion curve such as phase unwrapping have been discussed and proper solutions have been proposed.
590 $a School code: 0190.
650 4 $a Engineering, Civil. $3 783781
650 4 $a Geotechnology. $3 1018558
690 $a 0543
690 $a 0428
710 2 0 $a Rutgers The State University of New Jersey - New Brunswick. $3 1017590
773 0 $t Dissertation Abstracts International $g 57-12B.
790 1 0 $a Gucunski, Nenad, $e advisor
790 $a 0190
791 $a Ph.D.
792 $a 1997
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9717430