旋挖与冲击组合钻进法在岩溶地区钻孔桩中的应用

陈飞1，程华仁2，汪朝晖3

Application of Rotary and Percussion Drillings in Bored Cast-in-Place Piles in Karst

CHEN Fei1，CHEN Huaren2, WANG Zhaohui3

土工基础 . 2013, (3): 13 -15 .