Abstract
This paper presents the complex analysis of diverse field loading tests of four with diameter 600 mm CFA bored piles. Four static compression pile (by ASTM D1143) loading tests were carried out on the construction site. Static loading tests applied load to a deep-foundation element gradually for measuring foundation settlement. This test is used to measure the axial deflection of a vertical deep foundation when loaded in static axial compression. This vertical compression pile maintained load test is usually carried out to ensure the structural and geotechnical soundness of the pile and also to predict settlement of other piles. Applied load and head movement are measured for static axial compression load tests. The load-settlement and the load-displacement curves were obtained from field tests. Comparison of bearing capacity of bored piles with different length in problematic soil conditions of West Kazakhstan were discussed in this paper. The analysis showed that the bearing capacity of bored piles with different lengths corresponds to the design requirements. These investigations are important for understanding of soil-pile interaction on problematical soft soils ground of Aksai, Kazakhstan.