摘要
通过工程实例,介绍旋挖钻孔灌注桩在穿越厚圆砾层防塌孔的三种处理方法,即增加泥浆浓度法、超长钢护筒护壁法、注浆法,以供类似工程参考。
Through project case, this paper introduces three treatment methods for hole collapse caused by rotary drilled and bored piles penetrating gravel soil layer, including slurry density addition, wall protection with long steel protective canister and grouting.
关键词
旋挖钻孔灌注桩
圆砾层
泥浆浓度
钢护筒护壁
注浆法
rotary drilled and bored piles
gravel soil layer
slurrydensity
wall protection with steel protective canister
groutingmethod
