Faithin Omaha eBook Collection

Download or read book Use of Reusable Test Pile for Pile Design as Informed by Full Scale Pile Load Tests written by Anthony Maxwell Rossiter and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Current in-situ testing measurements used in pile design procedures, such as SPT N60 and CPT q[subscript t], are prone to elevated measurements caused by the presence of gravels. Measurement uncertainty caused by the influence of gravel on in-situ testing results necessitates the use of increased factors of safety on final pile design to ensure adequate performance of the system. Large factors of safety often lead to overdesigning of pile foundation elements, increasing the cost associated with construction. The Reusable Test Pile system (RTP) is designed to provide reliable penetration resistance measurements in gravelly soils and directly measure the force distribution within a scaled driven pile installed at the site. This paper presents RTP testing performed adjacent to previously performed full scale pile load tests in the Los Gatos Creek alignment in Coalinga, CA. The pile load test data is interpreted and compared to pile capacity calculations performed using data collected by the RTP. A system overview explains the design and operation of the RTP, as well as the process of data collection and interpretation. Testing performed at this site includes two RTP soundings, each adjacent to a separate full scale pile load test. During each sounding, a total of 6 static pullback tests were performed.