Abstract: Concrete-core sand-gravel pile is composed of high strength precast concrete-core pile and permeable sand-gravel shell, and vibrating immersed tube technology is often used to reinforce soft soil foundation. In view of the characteristics of the new-type concrete-core sand-gravel pile, the compaction effect and its characteristics caused by the vibrating immersed tube technology in soft clay foundation are tested and analyzed on site and calculated theoretically. Through the whole process of long-distance construction of four piles and the continuous construction of the whole site, the real-time tracking and monitoring of the pore water pressure, the deep horizontal displacement of surrounding soil and the stress of concrete core pile body are conducted. The variation rules and characteristics of each monitoring quantity are obtained. This study reveals the effects of the cumulative characteristics of the continuous construction of vibrating sunken tube on the variation of each monitoring quantity, points out that the construction process of vibratory sunken tube integrates the combined action of static and dynamic load on foundation soil, and brings to light the characteristics of continuous accumulation of energy in space and time caused by load transfer. Based on the theory of cavity expansion, the excess pore water pressure and radial displacement of the concrete-core sand-gravel pile submerged pipe are calculated and the adaptability of theoretical solution to practical situation is discussed.