GROUTING MATERIAL FOR REDUCING NEGATIVE FRICTION AND A GROUTING METHOD FOR REDUCING THE NEGATIVE FRICTION OF A PILE USING THE SAME TO PREVENT GROUND CONTAMINATION

摘要

PURPOSE: A grouting material for reducing negative friction and a grouting method for reducing the negative friction of a pile using the same are provided to secure a safe grouting material without the risk of ground contamination by mixing bentonite 80~100g and cement 10~40g with water 1L.;CONSTITUTION: A grouting method for reducing the negative friction of a pile comprises steps of: preparing an injection-pipe integrated casing including a tube body and an injection pipe, arranging a pile and the casing in order to locate the pile inside the casing in the ground, and injecting a grouting material for reducing negative friction through the injection pipe of the casing while pulling out the casing.;COPYRIGHT KIPO 2012