Type of Document	Dissertation
Author	Bentler, David J.
Author's Email Address	djbentler@hotmail.com
URN	etd-9298-83534
Title	Finite Element Analysis of Deep Excavations
Degree	Doctor of Philosophy
Department	Civil Engineering
Advisory Committee	Advisor Name Title James Michael Duncan Committee Chair George Filz Committee Member James Mitchell Committee Member Romesh Batra Committee Member T. Kuppusamy Committee Member Tom Brandon Committee Member
Keywords	deep excavations finite element analysis SAGE support systems geotechnical engineering
Date of Defense	1998-09-16
Availability	unrestricted
Abstract This dissertation describes enhancements made to the finite element program, SAGE, and research on the performance of deep excavations. SAGE was developed at Virginia Tech for analysis of soil-structure interaction problems (Morrison, 1995). The purpose of the work described in this text with SAGE was to increase the capabilities of the program for soil-structure analysis. The purpose of the research on deep excavations was to develop a deeper understanding of the behavior of excavation support systems. The significant changes made to SAGE during this study include implementation of Biot Consolidation, implementation of axisymmetric analysis, and creation of a steady state seepage module. These changes as well as several others are described. A new manual for the program is also included. A review of published studies of deep excavation performance and recent case histories is presented. Factors affecting the performance of excavation support systems are examined, and performance data from recent published case histories is compared to data from Goldberg et al.’s 1976 report to the Federal Highway Administration. The design, construction, and performance of the deep excavation for the Dam Number 2 Hydroelectric Project is described. Finite element analyses of the excavation that were performed with SAGE are presented and discussed.
Files	Filename       Size       Approximate Download Time (Hours:Minutes:Seconds)     28.8 Modem   56K Modem   ISDN (64 Kb)   ISDN (128 Kb)   Higher-speed Access    1-D_Consol_Contiguous_layers.mcd 165.08 Kb 00:00:45 00:00:23 00:00:20 00:00:10 < 00:00:01   AppenA.pdf 89.06 Kb 00:00:24 00:00:12 00:00:11 00:00:05 < 00:00:01   AppenB.pdf 87.52 Kb 00:00:24 00:00:12 00:00:10 00:00:05 < 00:00:01   AppenC.pdf 156.57 Kb 00:00:43 00:00:22 00:00:19 00:00:09 < 00:00:01   AppenD.pdf 39.49 Mb 03:02:50 01:34:01 01:22:16 00:41:08 00:03:30   chapter1.pdf 962.72 Kb 00:04:27 00:02:17 00:02:00 00:01:00 00:00:05   chapter2.pdf 3.47 Mb 00:16:04 00:08:15 00:07:13 00:03:36 00:00:18   chapter3.pdf 168.49 Kb 00:00:46 00:00:24 00:00:21 00:00:10 < 00:00:01   chapter4.pdf 119.60 Kb 00:00:33 00:00:17 00:00:14 00:00:07 < 00:00:01   chapter5.pdf 15.57 Mb 01:12:04 00:37:03 00:32:25 00:16:12 00:01:23   chapter6.pdf 7.94 Mb 00:36:45 00:18:54 00:16:32 00:08:16 00:00:42   chapter7.pdf 10.82 Mb 00:50:05 00:25:45 00:22:32 00:11:16 00:00:57   chapter8.pdf 41.27 Kb 00:00:11 00:00:05 00:00:05 00:00:02 < 00:00:01   ETD.PDF 140.89 Kb 00:00:39 00:00:20 00:00:17 00:00:08 < 00:00:01   Gibson_et_al_solution.mcd 114.55 Kb 00:00:31 00:00:16 00:00:14 00:00:07 < 00:00:01   ref_bib.pdf 70.23 Kb 00:00:19 00:00:10 00:00:08 00:00:04 < 00:00:01   Section_A-A__.gif 173.25 Kb 00:00:48 00:00:24 00:00:21 00:00:10 < 00:00:01   Section_B-B__.gif 199.33 Kb 00:00:55 00:00:28 00:00:24 00:00:12 00:00:01   Section_X-X__.gif 216.20 Kb 00:01:00 00:00:30 00:00:27 00:00:13 00:00:01   vita.pdf 18.87 Kb 00:00:05 00:00:02 00:00:02 00:00:01 < 00:00:01

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