GROUND REINFORCEMENT METHOD HAVING ADDITIONAL GROUT INJECTION STAGE IN INLET PART OF DRILLED-HOLE

摘要

PURPOSE: A ground reinforcing method using a multilayer reinforcing grout injection method in an inlet of a bored hole formed to be inclined is provided to maximize a sealing effect of grout as a filling state is confirmed or as grouting materials are repeatedly injected in the inlet of the bored hole. CONSTITUTION: A ground reinforcing method using a multilayer reinforcing grout injection method in an inlet of a bored hole formed to be inclined comprises as follows. Foundation grouting materials are filled in the bored hole in which a soil nailing is inserted. A hose for confirming the discharge of air is installed in the inlet of the bored hole, and discharged soil and the grouting materials are mixed so that the inlet of the bored hole is sealed. Reinforcing grouting materials are pressurized and filled in the inlet of the bored hole many times after predetermined time. [Reference numerals] (AA) Start; (BB,DD) No; (CC,EE) Yes; (FF) End; (S10) Form a bored hall; (S20) Fill the bored hall with grouting materials; (S30) Complete the filling of the bored hall; (S40) Seal the inlet of the bored hall; (S50) Install a hose made of reinforcing grouting materials; (S60) Compress and inject the reinforcing grouting materials; (S70) Discharge air