RESEARCH AND APPLICATION OF MECHANICAL CONNECTION TECHNOLOGY FOR UPLIFT STATIC LOAD TESTING OF BORED PILES
To develop a rapid mechanical connection technique suitable for vertical uplift static load testing of con-crete pile foundations,this study aims to improve testing efficiency and accuracy.Addressing the inefficiencies and inconsistencies associated with traditional welding methods,a detachable top and bottom plate design is proposed,utilizing anchors and high-strength threaded steel to achieve quick and stable load transfer.This technology is appli-cable to pile diameters ranging fromϕ800 toϕ1 500 mm and load capacities from 2 000 to 10 000 kN,significantly reducing the time required for uplift testing,enhancing accuracy,and minimizing the waste of human and material resources.It holds significant engineering application value.