劲性搅拌桩的试验研究

本文提出的由水泥土和混凝土两种材料组成的劲性搅拌桩解决了搅拌桩强度、刚度不足的问题，使搅拌桩桩侧阻力得以充分发挥。通过第一批 24根原型桩系列对比试验，证实芯长和含芯率适当的劲性搅拌桩平均具有高于混凝土桩 30％以上的承载力，并初步掌握了劲性搅拌桩的载荷特性、工作机理和成桩工艺。

Experimental Study on Concrete Core Mixing Pile

In this pesper, a composite pile made of two complementary material (cement soil and concrete) is introduced, which can solve the insufficiency of strength and rigidity of common mixing piles. It can also effectively make use of its side resistance. Through the first group (24 specimens) original pile experiment, we can testify that the composite pile with appropriate concrete core has more than 30％ capacity compared with concrete pile. At the same time, the load displacement property, working mechanism and producing technology are also initially learned.