ISSN: 1945-7545
CODEN: GTJODJ
Published Online: 1 September 2012
Page Count: 4

Closure to Discussion by Jae Chung and Henry Bollmann on “Development of a Substructure Instrumentation System at the New I-10 Twin Span Bridge and Its Use to Investigate the Lateral Behavior of Batter Piles” [Geotechnical Testing Journal, GTJ103109, Vol. 34, No. 4]

Abu-Farsakh, Murad
Research Associate Professor, Louisiana Transportation Research Center, Louisiana State University, Baton Rouge, LA

Yoon, Sungmin
Geotechnical Engineer, Texas Department of Transportation, Austin, TX

Ha, Da
Project Geotechnical Engineer, Geocomp Corporation, Boxborough, MA

Marr, W. Allen
President, Geocomp Corporation, Boxborough, MA

Zhang, Zhongjie
Pavement and Geotechnical Administrator, Louisiana Transportation Research Center, Baton Rouge, LA

(Received 23 June 2012; accepted 16 July 2012)

Abstract

An instrumentation system was installed at M19 eastbound pier of the new I-10 Twin Span Bridge for short-term and long-term monitoring of the bridge, and was used to monitor the lateral behavior of the pier during a unique lateral load test. The system includes strain gauges, In-Place Inclinometers, triaxial accelerometers, water pressure cells, tiltmeters, and corrosion meters. The strains and deformations within the foundation piles were measured during the lateral load test using the strain gauges and IPI inclinometers. The horizontal movement of the pier was also monitored using an automated survey station. The results of lateral load test were compared with the FB-MultiPier predicted values. This article presents the closure to the discussion on the Geotechnical Testing Journal, GTJ103109, Vol. 34, No. 4.

Keywords:
substructure instrumentation system, lateral load test, batter pile foundations, FB-MultiPier

Paper ID: GTJ20120121
DOI: 10.1520/GTJ20120121
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