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１穿孔的设备与工艺１－１设备的选择根据高速公路建设的一般要求，需要穿孔设备机动灵活性好，适合于各种岩性，自带动力等特点。我单位先后选用了原苏联产ＰＹδ－２型汽车液压工程钻机和石油物探机械厂改装的东风汽车液压工程钻机。配备蚌埠、柳州空压机厂生产的Ｗ—９／７
1 perforation equipment and technology 1-1 equipment selection According to the general requirements of highway construction, the need for perforation equipment flexibility and good mobility, suitable for all kinds of lithology, comes with power and so on. My unit has chosen the former Soviet-made PYδ-2 hydraulic engineering drilling rig and petroleum geophysical machinery factory modified Dongfeng hydraulic engineering drilling rig. Equipped with Bengbu, Liuzhou compressor factory production of W-9/7