摘要
在黄河小浪底水利枢纽观测孔工程中,采用气动潜孔锤跟管钻进结合双动力头钻机成功地解决了普通气动潜孔锤及常规钻进工艺在厚度达50m渣石层成孔难的问题。
In Huanghe Xiaolangdi and double driving head drilling machin water conservancy engineering,pneumatic downhole hammer e were used to solve the problems coming up against with cornmon pneumatic downhole hammer and conventional drilling technology while drilling in slag layer of 50m thickness.
出处
《凿岩机械气动工具》
2008年第4期14-16,共3页
Rock Drilling Machinery & Pneumatic Tools
关键词
水利观测孔
潜孔锤跟管钻进
双动力头钻机
厚渣石层
water conservancy observation hole
DTH with simultaneous casing
double driving head drilling machine
thick slag layer
