The present invention discloses a deep borehole
rock body deformation testing device with hand
hydraulic pump connected with a pressure gauge and a high-pressure oil tube; two high-pressure oil tube are respectively a load applying course oil tube and a return journey oil tube, the load applying course oil tube is connected to the course
piston interface of the hole drilling
rock body deformation tester; and the measuring cable is connected with the hole drilling
rock body deformation tester and the
digital number reading device. The hole drilling rock body deformation tester is composed of four pistons, three displacement transducers, a displacement
transducer amplifier, two force measuring sensors, a force measuring sensor
amplifier, a detachable active rigid bearing plate, a detachable passive rigid bearing plate, a protective
barrel and a circuit protecting
barrel; the device has the advantages of high measuring precision, good
coupling capacity to the hole drilling wall, directly measuring the
deformation modulus value and elasticity modulus value of the deep rock body, simple structure, easy operation, stable testament and accurate data.