Stiff core stirring pile core with self-stirring function and anti-disengagement function and construction method thereof

• Main Authors: FAN CHENGWEN, TANG JIANHUI, LI PING, WU KANG, CHEN YUMIN
• Format: Patent
• Language: Chinese; English
• Published: 04.05.2018
• Subjects: EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; SOIL SHIFTING; UNDERGROUND OR UNDERWATER STRUCTURES

The invention discloses a stiff core stirring pile core with a self-stirring function and an anti-disengagement function. The stiff core stirring pile core comprises a prefabricated pile core and a stirring sleeve arranged on the prefabricated pile core in a sleeved mode, and the prefabricated pile core comprises a pile body and a pile tip arranged at the bottom end of the pile body; a plurality of grooves are formed in the outer wall of the upper portion of the pile body, and a plurality of stirring blades distributed in the radial direction of the pile body are arranged on the outer wall ofthe bottom of the pile body; and a slurry spraying hole is formed in the center of the pile body and serves as a channel for guniting. The invention further discloses a construction method of the stiff core stirring pile core with the self-stirring function and the anti-disengagement function. The construction method comprises the following steps that the pile core is prefabricated; a stirring pile machine is put in place