Location
New York, New York
Date
15 Apr 2004, 7:00pm - 8:30pm
Abstract
Non-destructive testing of piles has gained increased acceptance for various purposes, e.g., quality control/quality assurance, verification of existing conditions, and quantification of dimensions. The correct use of this technique can greatly simplify and expedite investigation, and be economical in addressing concerns or questions on pile conditions. Equally, its incorrect use can cause controversies, delays, and/or create adverse reputation for the technology. This paper presents three case histories on the use of the low strain, pile integrity testing (PIT) for different pile types and for different reasons. In this paper, the term “pile” is used generically and implies all types of deep foundations, e.g., driven or drilled-in, concrete or steel, piles or piers, etc. Initially, a brief overview of the technology along with its capabilities and limitations will be presented, followed by the case histories. The first case is related to the construction of a new power plant at the location of existing pile-supported buildings, necessitating the collection of information on the condition and length of these piles so that they can be used as part of the new foundations for the power plant once the existing buildings were demolished. The second case history is related to the construction of a hotel, involving augered cast-in-place piles. PIT was performed to evaluate the condition of a failing test pile as part of the quality control process. The third case history is related to investigating the quality of several drilled shafts for a retail facility. PIT was performed to obtain an estimate of the shaft lengths and gather information on overall shaft quality. The case histories will provide details of structures, their foundations, and the PIT application. Along with the PIT results, other relevant information such as subsurface conditions and pile load test results will be presented, where available. The collected PIT data will be compared with pile information available prior to initiating the program to assess the validity and the applicability of the PIT technique.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
5th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 2004 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Massoudi, Nasser and Teferra, Wondem, "Non-Destructive Testing of Piles Using the Low Strain Integrity Method" (2004). International Conference on Case Histories in Geotechnical Engineering. 2.
https://scholarsmine.mst.edu/icchge/5icchge/session09/2
Non-Destructive Testing of Piles Using the Low Strain Integrity Method
New York, New York
Non-destructive testing of piles has gained increased acceptance for various purposes, e.g., quality control/quality assurance, verification of existing conditions, and quantification of dimensions. The correct use of this technique can greatly simplify and expedite investigation, and be economical in addressing concerns or questions on pile conditions. Equally, its incorrect use can cause controversies, delays, and/or create adverse reputation for the technology. This paper presents three case histories on the use of the low strain, pile integrity testing (PIT) for different pile types and for different reasons. In this paper, the term “pile” is used generically and implies all types of deep foundations, e.g., driven or drilled-in, concrete or steel, piles or piers, etc. Initially, a brief overview of the technology along with its capabilities and limitations will be presented, followed by the case histories. The first case is related to the construction of a new power plant at the location of existing pile-supported buildings, necessitating the collection of information on the condition and length of these piles so that they can be used as part of the new foundations for the power plant once the existing buildings were demolished. The second case history is related to the construction of a hotel, involving augered cast-in-place piles. PIT was performed to evaluate the condition of a failing test pile as part of the quality control process. The third case history is related to investigating the quality of several drilled shafts for a retail facility. PIT was performed to obtain an estimate of the shaft lengths and gather information on overall shaft quality. The case histories will provide details of structures, their foundations, and the PIT application. Along with the PIT results, other relevant information such as subsurface conditions and pile load test results will be presented, where available. The collected PIT data will be compared with pile information available prior to initiating the program to assess the validity and the applicability of the PIT technique.
