Horizontal hole ground stress measurement device based on BWSRM (Borehole Wall Stress Relief Method) principle

The invention relates to a horizontal hole ground stress measurement device based on a BWSRM (Borehole Wall Stress Relief Method) principle, which is used for the technical field of measurement of stress of rocks in an underground cavity or a mine opening. The horizontal hole ground stress measurement device comprises a sealed cable joint, a stress measurement main working part, a multiway stress measuring instrument, a measurement control unit and a detection part, wherein the sealed cable joint is connected with the front end of the stress measurement main working part to be used as an output port for a power cable and a communication cable of the integral device; the stress measurement main working part is sequentially connected with the multiway stress measuring instrument, the measurement control unit and the detection part; the multiway stress measuring instrument is used for recording variation of stress on a working surface in the process that a thin-walled diamond core drill implements ring-shaped cu