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Condition Monitoring of Urban Infrastructure
Project Number: A428, A435, A450, A464, A478, A494, A213
Principal Investigator: Richard Finno
1. Project Abstract
2. Final Research Report
3. Publications
Project Abstract:
Many transportation projects require detailed performance monitoring as they are constructed. When optical survey points are used, this operation becomes labor intensive and time consuming, and the transmission of the data to interested parties is slow. Consequently, the information cannot be used during construction in a timely fashion.
One example where such data are routinely used is when making deep excavations or when tunneling in urban environments. A major concern in these projects is the impact of construction-related ground movements on adjacent buildings and utilities. The ground movements cause any structures within the affected zone to deform and possibly sustain damage. It is critically important to predict and control the magnitude and distribution of the ground movements that result from creating the underground space.
However, it is quite difficult, if not impossible, to use the observed movements for these purposes in a typical project where time is of the essence to a contractor. To obtain optical survey data, process it, and use it to “calibrate” the results of a finite element model is a time-consuming, and here-to-fore a trial-and-error, process. This updating process presently can be done with the commitment of a significant number of personnel, but cannot be accomplished in a time frame that provides useful feedback to a contractor during the normal pace of excavation activities.
Work funded last year by ITI focused on developing an autonomous total station for measuring ground surface movements, that involved developing a system that allows one to use a total station to automatically sense the lateral and vertical movements of optical survey points, to transmit the data to a remote location where it can be automatically processed, and to present the data in such a way that meaningful interpretations can be easily made. This capability will remove some of the impediments that prevent the use of intelligent updating of performance data to control construction operations.
Final Research Report:
Condition Monitoring of Urban Infrastructure
Years 1-8 Final Report
A428, A435, A450, A464, A478, A494, A213
Condition Monitoring of Urban Infrastructure: Parts I - VI (PDF, 26.8 mb)
Publications:
Year |
Title |
Author(s) |
File |
| 2007 | Deformation of compacted deep fills due to wetting. In Proceedings, Engineering of GeoHazards, New York, New York, May 2007. ASCE, Metropolitan Section, Geotechnical Group. |
A. Ayoubian and R. Finno | N/A |
| 2007 | Three-dimensional responses observed in an internally braced excavation in soft clay. Journal of Geotechnical and Geoenvironmental Engineering, 133(11):1364–1373 | J.T. Blackburn and R.J. Finno | N/A |
| 2007 | Recent Stress History Effects on Compressible Chicago Glacial Clay. PhD thesis, Northwestern University, 2007 | W. Cho | N/A |
| 2007 | Effects of swelling during saturation in triaxial tests in clays. Geotechnical Testing Journal, 30(5): 378–386 | W. Cho, T.P. Holman, Y.-H. Jung, and R.J. Finno. | N/A |
| 2007 | Defining yielding from bender element measurements in triaxial stress probe experiments. Journal of Geotechnical and Geoenvironmental Engineering, 133(7):841–849 | Y.-H. Jung, W. Cho, and R.J. Finno. | N/A |
| 2007 | Automated monitoring and inverse analysis of a deep excavation in Seattle. Master’s thesis, Northwestern University | M. Langousis | N/A |
| 2007 | Modeling shear and volumetric responses in stress probe tests. In Proceedings, GeoDenver 2007: New Peaks in Geotechnics, Denver, Colorado | X. Tu and R.J. Finno | |
| 2007 | Use of Monitoring Data to Update Performance Predictions of Supported Excavations, presented at the 2007 FMGM Conference in Boston, Massachusetts. | Richard J. Finno | |
| 2007 | Real Time Monitoring at the Olive 8 Excavation | Richard J. Finno,, Miltos Langousis, David G. Winter, Matthew W. Smith, and King H. Chin, |
|
| 2006 | Representing internal bracing systems in 3-D models of deep excavations. Proc. Geo Congress 2006: Geotechnical Engineering in the Information Technology Age, Atlanta, Georgia. | J.T. Blackburn and R.J. Finno | N/A |
| 2006 | Use of lateral movements and strut loads in inverse analysis of supported excavations,” Proc. Geo Congress 2006: Geotechnical Engineering in the Information Technology Age, Atlanta, Georgia | Finno, R.J. and Rechea, C. | N/A |
| 2006 | An incrementally non-linear model for clays with directional stiffness and a small strain emphasis. PhD thesis, Northwestern University | X. Tu | N/A |
| 2006 | Inverse analysis of excavations in urban environments. Ph.D. dissertation, Northwestern University, Evanston, Illinois. | Rechea Bernal, C. | N/A |
| 2006 | Excavation-induced strains and cantilever deflections in compressible clays. MS thesis, Northwestern University, Evanston, Illinois. | Andrianis, G.E. | N/A |
| 2005 | Evaluating damage potential in buildings affected by excavations. Journal of Geotechnical and Geoenvironmental Engineering, 131 (10), 1119-2100. | Richard J. Finno, Frank T. Voss. Jr., Edwin Rossow, J. Tanner Blackburn | |
| 2005 | Flexural waves in nondestructive evaluation of drilled shafts. Proc. Conference on QA/QC and Verification for Drilled Shafts, Anchors and Micropiles, Dallas, Texas. | Finno, R.J., Wang, H, and Lynch, J. | N/A |
| 2005 | Automated monitoring of supported excavations. Geotechnical Practice Publication 3: Proc. 13th Great Lakes Geotechnical and Geoenvironmental Conference, Geotechnical Applications for Transportation Infrastructure ed. Hani H. Titi. American Society of Civil Engineers, Reston, Virginia. | R.J. Finno and J. Tanner Blackburn | N/A |
| 2005 | Small strain behavior of compressible Chicago glacial clay. Ph.D. dissertation, Northwestern University, Evanston, Illinois. | Holman, T. P. | N/A |
| 2005 | Automated remote sensing and three-dimensional analysis of internally braced excavations. Ph.D. dissertation, Northwestern University, Evanston, Illinois. | J. Tanner Blackburn | N/A |
