Development of New Chemical Grouting Method with High Injection Efficiency and Quality

摘要

A new chemical grouting method by using Colloidal Silica has beendeveloped to improve the injection efficiency and its quality. Adeveloped chemical grouting method has two unique technical features.One is the packer which is made up of cloth and rubber. The other is aspecial sealing material which protects the borehole wall during drillingand is fluidized during the chemical injection.