It is indicated that the quality, microstructure, and isotropy of hi-directional cement-soil deep mixing column are far superior to the traditional deep mixing column.

• 结论表明：常规水泥土搅拌桩搅拌不够均匀，桩身水泥土的微观结构、物理力学性质随深度增加变差，表现出方向上的差异性。