复合注浆法在基础加固中的应用

Application of Composite Injection Method in Subgrade Reinforcement

摘要:

复合注浆法是将静压注浆法和高压旋喷注浆法进行时序上的结合，分别发挥两种注浆加固方法各自的优点，又可克服各自的技术和工艺缺陷的一种基础加固新方法，它可以较好地对既有建筑物地基和新建建筑基础出现质量问题进行加固处理。简述了复合注浆法的加固作用机理、设计及计算模型，在此基础上通过工程实例介绍其施工技术并分析其加固效果和经济性。

关键词:复合注浆法 静压注浆法 高压旋喷注浆法 基础加固

Abstract:

This paper presents composite injection method, and it consists of static pressure injection method and high-pressure whirl injection method sequence in time. The composite method has all the advantages of the two individual injection methods and eliminates the disadvantages of them. It also increases the possibility of success and the range of subgrade reinforcement. Its effect is very good for the reinforcement of subgrade to many old buildings and new buildings which have problems in their subgrade.

Key words:composite injection method,static pressure injection method,high-pressure whirl injection method,subgrade reinforcement