Estimation of Load Carrying Capacity of Bored Piles from Initial Pile Load Test Data
摘要
Foundation piles are essential for deep foundations in geotechnical engineering, particularly where higher loads cannot be supported by shallow foundations. However, estimating the load carrying capacity of piles is not straightforward and remains a challenge for practicing geotechnical engineers. This is due to influence of ground conditions and structural behaviour of pile. Hence, vertical pile load tests are essential to verify the load carrying capacity, ensure structural safety, validate design assumptions, and minimize settlement risks prior to commencement of infrastructure projects. Full-scale pile load tests on test piles near working pile areas are a reliable method to determine the load-settlement behavior of pile foundations. This study investigates the ultimate load carrying capacity of bored piles, along with the contributions of end bearing and skin friction using initial vertical pile load test data. The pile load test results are analyzed using various interpretation methods, including Chin’s method, Decourt’s method, Tangent method, Kulhawy’s method, and the IS code approaches. The findings demonstrate the effectiveness of these methods in providing reasonable estimates of pile capacity, offering valuable insights for working pile design and construction.