Abstract:When faced with the construction of large-diameter, deep and long pile foundation using the sinking pile method, different techniques are employed on site, including the hydraulic pile hammer fixed on different frames for sinking the pile and the vibratory hammer for extracting the pile. However, the use of these techniques is discontinuous and the transition time between processes is too long, making it difficult to manage the site. To improve the efficiency of sinking pile construction,an integrated construction technology for sinking pile perforation and vibratory pile extraction was introduced, which combined the hydraulic impact hammer and spring vibratory hammer on the same pile driving frame. This integrated approach saves time and reduces the cost of auxiliary operations and mechanical usage, achieving a convenient, efficient, and economical effect.