Pile Integrity and Load Testing: Methodology and Classification

Cosic M., Bozic-Tomic K., Susic N.: Pile Integrity and Load Testing: Methodology and Classification (presentation)

The presentation shows the methodology and classification of pile integrity and load testing, in compliance with current foreign standards, as well as our own defined segments of standard improvement and our own definitions of certain key elements. The classification has been conducted according to the test types which clearly define the pile testing process, analysis methods, and test results processing. Beside the basic division of pile testing to integrity tests and load tests, there is also an additionally defined group of shaft control tests in the case of bored piles, since for the proper shaft formation, when it comes to bored piles, certain qualitative-quantitative criteria must be fulfilled beforehand. Presented in this way, the methodology and classification of pile integrity and load tests serves, primarily, an educational purpose for civil and geotechnics engineers who deal with this issue, to additionally introduce innovations in this field of testing and and clarify all the elements of the testing since contradictory opinions and disagreements regarding the testing details are quite common in practice.

Pile Tests

Cosic M., Folic R., Susic N.: Pile Tests (presentation)

Based on the analysis of a large number of scientific papers, the authors of this presentation show their own classification pile tests. The general classification is conducted using high strain and low strain tests, i.e. tests whose basic purpose is to determine the capacity of piles and tests the purpose of which is to analyze the integrity of piles. The pile capacity and integrity tests are critically analyzed by defining their advantages and disadvantages using in-situ investigations, cost effectiveness, requirements regarding the special education of engineers, the quality of data obtained, complexity of data processing and the quality of the processed end results. The proposed classification of pile capacity and pile integrity tests enables to identify very effectively which is the optimal test type for further geotechnical analysis of structures and which type of test should be used in the phase of geotechnical testing for designing and scientific research.

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