▎ 摘　　要

NOVELTY - The method involves drilling a ground with a drilling device, and preparing liquid containing silica sol and another liquid containing cement, expanding agent, water and graphene oxide. The ground is hardened by mixing and consolidating the injected ground reinforcing material in a drilling hole. A scratch is formed on a wall of a perforation hole, and a liquid injection pump is utilized for injecting the former liquid. An injection pipe is extended from the liquid injection pumps. A spiral blade crossing a discharge unit inner diameter is formed in the discharge unit. USE - Ground reinforcement method for improving ground such as soft ground using silica sol. ADVANTAGE - The method reduces environmental pollution such as groundwater contamination due to material leaching. DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart illustrating the ground reinforcement method (Drawing includes non-English language text).