STEEL PIPE SOIL CEMENT PILE AND ITS INSTALLATION METHOD AND DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a steel pipe soil cement pile for achieving economical installation and less drilled soil by eliminating the waste of a solidifying material and producing an increase in bearing power of the pile by increasing adhesion between a steel pipe and a soil cement even when using a normal steel pipe with no protrusion on the surface, and its installation method and device. SOLUTION: The steel pipe soil cement pile comprises a soil cement column 1 formed of the drilled soil and the solidifying material and the steel pipe 2 to be installed in the soil cement column 1. Soil cements 1a, 1b, 1c are filled near the outside and inside surfaces of the steel pipe 2 and at a central portion in the steel pipe 2. The soil cements 1a, 1b are richer (stronger) than the soil cement 1c in mixture.