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Prediction and field observation in ...

Zapata, Santiago Fernando.

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Prediction and field observation in soft ground tunnel.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Prediction and field observation in soft ground tunnel./
Author:	Zapata, Santiago Fernando.
Description:	256 p.
Notes:	Adviser: Jeffry S. Budiman.
Contained By:	Dissertation Abstracts International59-05B.
Subject:	Engineering, Civil. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9833059
ISBN:	0591861631

Prediction and field observation in soft ground tunnel.
Zapata, Santiago Fernando.

Prediction and field observation in soft ground tunnel. - 256 p.

Adviser: Jeffry S. Budiman.

Thesis (Ph.D.)--Illinois Institute of Technology, 1998.

Control of ground movement during tunneling is one of the major issues related to construction in an urban environment. An accurate prediction of ground movement is not possible unless complete knowledge is obtained for causes and effects associated with tunneling operation.

ISBN: 0591861631Subjects--Topical Terms:

783781
Engineering, Civil.

Prediction and field observation in soft ground tunnel.
LDR:03357nam 2200325 a 45 001 926634
005 20110422
008 110422s1998 eng d
020 $a 0591861631
035 $a (UnM)AAI9833059
035 $a AAI9833059
040 $a UnM $c UnM
100 1 $a Zapata, Santiago Fernando. $3 1250217
245 1 0 $a Prediction and field observation in soft ground tunnel.
300 $a 256 p.
500 $a Adviser: Jeffry S. Budiman.
500 $a Source: Dissertation Abstracts International, Volume: 59-05, Section: B, page: 2337.
502 $a Thesis (Ph.D.)--Illinois Institute of Technology, 1998.
520 $a Control of ground movement during tunneling is one of the major issues related to construction in an urban environment. An accurate prediction of ground movement is not possible unless complete knowledge is obtained for causes and effects associated with tunneling operation.
520 $a In order to provide such an evaluation, different soil models have been examined, including: Drucker-Prager material, and modified Cam-Clay material. During the tunneling process, three-dimensional movements are induced in the soil around the shield. To simulate all of the aspects of this operation a full three-dimensional analysis is needed. The finite element program ABAQUS will be used for this study.
520 $a The conclusions of this research work are summarized as follows: (1) A comparison of the predictions by the two different soil models the Drucker-Prager and modified Cam-Clay shows that the Drucker Prager model is better than the modified Cam-Clay in tunneling analysis. (2) Good agreement between the predicted and observed response in simulated triaxial compression shear tests is obtained using the modified Cam-Clay model on artificial soils. (3) Fair agreement between the predicted and observed response in simulated triaxial compression shear tests is obtained using the Drucker-Prager model on real soils. (4) The FE program used for this research was determined to be valid for a simulation of advanced shield tunneling. Fair agreement of the predicted data with the observed for the Higgins project are obtained. (5) Soil parameters for modeling the Higgins tunnel were obtained in the laboratory with conventional equipment. (6) Control of movements into the tail void is a key issue for shield tunneling because of its impact on surface settlements.
520 $a Based on all of the results, the following recommendations are drawn: (1) Future research should be directed at the important questions of the degree of support pressure applied at the face of the advanced shield. (2) Additional research should be devoted to improvement of the modeling procedures for shield tunneling in the three-dimensional program. Items where work is needed includes: (a) Inclusion of non-associated flow rule model when modeling the behavior of anisotropic soils. (b) Investigation of development and dissipation of pore water pressure during tunneling and long term condition respectively. (c) Deformation of tunnel lining as the shield progresses.
590 $a School code: 0091.
650 4 $a Engineering, Civil. $3 783781
650 4 $a Engineering, Mining. $3 1035560
650 4 $a Geotechnology. $3 1018558
690 $a 0428
690 $a 0543
690 $a 0551
710 2 0 $a Illinois Institute of Technology. $3 1018749
773 0 $t Dissertation Abstracts International $g 59-05B.
790 $a 0091
790 1 0 $a Budiman, Jeffry S., $e advisor
791 $a Ph.D.
792 $a 1998
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9833059