低压喷射搅拌法加固软土地基的试验研究

Research on JACSMAN of the Ground Improvement for Cement Column Composite Foundation

喷射搅拌法 (JACSMAN)兼具旋喷和搅拌加固方法的优点 ,是一种加固软土地基的新技术。本文通过 3组室外静载试验和 4组室内桩芯抗压试验 ,研究低压喷射搅拌水泥土桩的强度特性 ,并探讨了低压喷射搅拌桩复合地基的承载力设计公式中分项系数的取值问题。

Jet And Churning System Management(JACSMAN) is a new type of soil improvement method which combines both advantages of mechanical churning system and jet mixing system. This paper introduces the results of three prototype tests which were carried out based upon JC-1 method and JC-2 method. According to the test results, the calculation methed of bearing capacity for the cement column composite foundation is discussed.