Open AccessDevelopment of Portable Shallow Hole Inclinometer in Coal Mine
Author(s) -
Long Chen,
Yang Jia-ru
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/446/5/052066
Subject(s) - inclinometer , borehole , azimuth , drilling , body orifice , geology , trajectory , coal mining , tiltmeter , measured depth , current (fluid) , tube (container) , engineering , marine engineering , coal , petroleum engineering , geotechnical engineering , mechanical engineering , geodesy , optics , amplitude , oceanography , physics , astronomy , waste management
Due to the special requirements of borehole measurement work in coal mines, in this paper, a portable shallowhole inclinometer is developed in response to the current situation of shallow borehole trajectory measurement relying on the pushing of drilling machine. This instrument is mainly composed by three parts of inclinometerprobe tubes, orifice display controllers, and conveying rods. The probe tube can be used to measure the attitude parameters such as the inclination, azimuth and tool facing angle of the borehole, and the orifice display controller works synchronously and records the drilling depth and measuring time.Finally, the track of the current borehole can be displayed in the mine. The test results show that the instrument is stable, reliable, and practical.