The invention discloses a rock structural
surface shear test method and an implementation apparatus thereof. The method mainly comprises the steps that: an upper part and a lower part of a
rock sample are respectively fixed in an upper opened shearing box and a lower opened shearing box with opposite opening surfaces through filling, wherein a certain distance is kept between the opening surfaces of the upper and lower shearing boxes, such that the
rock sample block shear test structural surface is exposed between the opening surfaces of the upper and lower shearing boxes; a pair of shear loads with opposite directions are implemented on the upper and lower shearing boxes, and the loads act upon the
rock sample block through the
filling materials in the shearing boxes; the loads further act upon the rock sample block structural surface, such that the
shear strength parameter of the rock sample block structural surface is obtained. According to the invention, the rock structural surface is subjected to a shear test, such that structural surface damage of the rock sample block during a moving process is effectively avoided, and
test failure caused by damaged structural surface is prevented. The influence of
cement upon sample block tests in prior arts is completely eliminated, and the true
shear strength parameter of the rock structural surface can be obtained.