Rock stress measuring apparatus and rock stress measurement method

摘要

PROBLEM TO BE SOLVED: To allow deep part rock pressure measurement in a conical bottom hole strain method.;SOLUTION: This rock pressure measuring instrument 100 is provided with a tubular body 102 suspended inside a vertical shaft via a suspension tool 101, and a measuring part attached detachably to an attaching and detaching mechanism 104 in an inner space 103 of the tubular body via a locking part 105, and for bonding-processing a strain gage 106 in a lower end onto a conical hole bottom while injecting gas for removing slime.;COPYRIGHT: (C)2005,JPO&NCIPI