The dry jet mixing pile (DJMP)has been widely used for the soft ground improvement in expressway engineering, but the stress ratio of pile to clay and deformation of composite foundation are not well understood.

• 水泥土搅拌桩在高速公路的软基处理中得到了广泛应用,但是对水泥土搅拌桩地基深层桩土应力比和变形未能有深入的认识。