DEFORMATION MEASUREMENT DEVICE AND METHOD OF CONVENTIONAL TRIAXIAL COMPRESSION TEST OF CUBOID ROCK SAMPLE

摘要

Disclosed are a deformation measurement device (1) and a method of a conventional triaxial compression test of a cuboid rock sample. The device comprises a set of axial deformation measurement device and two sets of lateral deformation measurement devices, wherein, the axial deformation measurement device comprises two pairs of completely same first horizontal clamp holders (8); two first horizontal sliding rods (5) are arranged between each pair of first horizontal clamp holders (8); two axial sliding rods (6) and a pair of displacement sensors (7) are arranged between the two pairs of first horizontal clamp holders (8); the two sets of lateral deformation measurement devices are arranged between the two pairs of first horizontal clamp holders (8); each set of lateral deformation measurement device comprises a pair of second horizontal clamp holders (9); two second horizontal sliding rods (10), two springs (12) and a pair of displacement sensors (7) are arranged between each pair of second horizontal clamp holders (9); the two sets of lateral deformation measurement devices are perpendicularly arranged. The present invention solves the problem that a measuring device for a cylindrical sample cannot be applied to a cuboid sample. The deformation measurement device (1) is simple to operate and high in measurement accuracy.