粉喷法加固软弱地基新技术□安徽省公路运输建筑设计所张国范一、前言粉喷法加固软弱地基是将生石灰粉、水泥粉等粉体材料通过专用机械、利用压缩空气让粉体处于气体输送状态喷入要加固的地基土中，再通过机械的强制性搅拌让其与土充分混合并压密，从而使地基土和加固料发生物 Powder spraying method to strengthen the new technology of soft ground □ Zhang Guofan, Highway Transportation Architecture Design Institute of Anhui Province I. INTRODUCTION The powder spray method is used to reinforce the soft ground by passing powdered materials such as quicklime powder and cement powder through special machinery and using compressed air to allow the powder to be transported by gas. The state is sprayed into the ground soil to be reinforced, and then it is thoroughly mixed with the soil and compacted by mechanical forced agitation so that the ground soil and the reinforcing material are generated.