COMPLEX OF STATIC LOADING TESTS OF BORED PILES

Abstract

This paper presents the complex analysis of diverse field loading tests of ten large diameter deep bored piles on CFA technology at the Karachaganak Processing Complex (KPC), Aksay, Kazakhstan. On the basis of core sample analysis and seismic studies, the geological conditions of this field are varied and complicated. According to the project design, the field tests of CFA bored piles with diameter 600 mm, length from 15.51 m to 21.85 m were performed by two static laterals, four static tensile and four static compression pile loading tests. Static loading tests applied a load to a deep-foundation element gradually for measuring foundation settlement. The static loading tests were performed by ASTM D1143, ASTM D3689, and ASTM D3966. In this paper are shown the load-settlement and the load-displacement diagrams from those field tests which give the possibility to identify the bearing capacity of piles at this ground. The analysis showed that the bearing capacity of bored piles with different lengths corresponds to the design requirements.