Method and equipment for reducing filling coefficient of cast-in-place pile in deep soft soil area

• Main Authors: SHAN LIANJUN, YAN RIJIN, CAI WENJUN, DENG CAN
• Format: Patent
• Language: Chinese; English
• Published: 03.01.2023
• Subjects: EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; SOIL SHIFTING; UNDERGROUND OR UNDERWATER STRUCTURES

The invention relates to a method and equipment for reducing the filling coefficient of a cast-in-place pile in a deep soft soil area. The equipment comprises a pile hole located in a deep soft soil layer, and an annular hole is formed in the top of the pile hole; the reinforcement cage is positioned in the pile hole; the hook is positioned above the deep and thick soft soil layer; the water glass pouring assembly used for pouring water glass is located in the reinforcement cage and used for injecting the water glass when concrete grout is poured. The concrete pouring assembly is located in the reinforcement cage and used for pouring concrete grout into the pile hole; the protection assembly is located in the annular hole and used for preventing soil on the inner wall of the annular hole from collapsing and falling into the pile hole; the defects that in the prior art, the manufacturing process for wrapping a layer of iron sheet or an annular thermoplastic pipe on the periphery of a reinforcement cage is comp