Title page for ETD etd-01162004-154238

Type of Document

Dissertation

Author

Olgun, Celal Guney

Author's Email Address

olgun@vt.edu

URN

etd-01162004-154238

Title

Performance of Improved Ground and Reinforced Soil Structures during Earthquakes – Case Studies and Numerical Analyses

Degree

PhD

Department

Civil Engineering

Advisory Committee

Advisor Name	Title
James R. Martin II	Committee Chair
J. Michael Duncan	Committee Member
James K. Mitchell	Committee Member
Mahendra P. Singh	Committee Member
Marte S. Gutierrez	Committee Member
Martin C. Chapman	Committee Member

Keywords

numerical analysis
finite element analysis
soil improvement
soil-structure interaction
earthquakes
reinforced soil strustures

Date of Defense

2003-12-12

Availability

unrestricted

Abstract

The 1999 Kocaeli Earthquake (M=7.4) struck northwestern Turkey on August 17, 1999 and caused significant damage in urban areas located along Izmit Bay. The sites that suffered the greatest damages were located primarily in areas of poorest soil conditions, typically containing soft clays and silts and/or loose, liquefiable sands. Because the affected region is heavily developed with infrastructure and there is a preponderance of poor soils, a wide range of soil improvement measures had been used to mitigate anticipated earthquake damages throughout the region. Following the earthquake and significant aftershocks, Virginia Tech researchers traveled to Turkey to investigate the affected area to document geotechnical field performance. Primary focus of the Virginia tech team was given to investigating the performance of improved soil sites and reinforced soil structures. The sites were subjected to ground motions ranging from about 0.10g to 0.35g. The site locations ranged from 0 to 35 km from the zone of energy release. This dissertation presents in detail, the findings from the two most instructive sites. The investigation of these sties involved field reconnaissance, field and laboratory testing of soils, seismic analysis, numerical modeling, and other analytical work.

Files

Filename		Size	Approximate Download Time (Hours:Minutes:Seconds)
Filename		Size	28.8 Modem	56K Modem	ISDN (64 Kb)	ISDN (128 Kb)	Higher-speed Access
	A1_Title.pdf	47.87 Kb	00:00:13	00:00:06	00:00:05	00:00:02	< 00:00:01
	A2_Abstract.pdf	63.31 Kb	00:00:17	00:00:09	00:00:07	00:00:03	< 00:00:01
	A3_Acknowledgements.pdf	989.29 Kb	00:04:34	00:02:21	00:02:03	00:01:01	00:00:05
	A4_TOC.pdf	1.22 Mb	00:05:38	00:02:54	00:02:32	00:01:16	00:00:06
	B1_Chapter_1.pdf	165.42 Kb	00:00:45	00:00:23	00:00:20	00:00:10	< 00:00:01
	B2_Chapter_2.pdf	22.94 Mb	01:46:11	00:54:36	00:47:47	00:23:53	00:02:02
	B3_Chapter_3.pdf	4.26 Mb	00:19:44	00:10:08	00:08:52	00:04:26	00:00:22
	B4_Chapter_4.pdf	4.98 Mb	00:23:04	00:11:51	00:10:22	00:05:11	00:00:26
	B5_Chapter_5.pdf	193.00 Kb	00:00:53	00:00:27	00:00:24	00:00:12	00:00:01
	C1_References.pdf	562.05 Kb	00:02:36	00:01:20	00:01:10	00:00:35	00:00:02
	C2_Appendix.pdf	484.88 Kb	00:02:14	00:01:09	00:01:00	00:00:30	00:00:02
	C3_Vita.pdf	59.17 Kb	00:00:16	00:00:08	00:00:07	00:00:03	< 00:00:01