Geological exploration drilling rig

• Main Authors: LIU XINGBING, MEI MEI, WANG JINXI
• Format: Patent
• Language: Chinese; English
• Published: 19.09.2023
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The utility model discloses a geological exploration drilling device in the field of geotechnical engineering, which comprises a drilling machine body with an output shaft, the output shaft is sequentially connected with a grouting pipe and a drill bit, the grouting pipe comprises an inner core pipe and an outer shell pipe which are nested with each other, a grouting channel is arranged at the vertical central axis of the inner core pipe, one end of the inner core pipe is connected with the output shaft, and the other end of the inner core pipe is connected with the drill bit. The other end of the inner core pipe penetrates out of the outer shell pipe, the end, penetrating out of the outer shell pipe, of the inner core pipe is connected with a drill bit, a vertical ejection channel communicated with the grouting channel is machined in the drill bit, and the ejection channel penetrates through the drill bit. In the process that the drill bit is driven to rotate, the drilling machine conducts grouting through t