The invention discloses a
simulation experimental apparatus and method for
mechanical property of gas-containing
coal rock under
uniaxial compression. The apparatus comprises a
coal sample container,a stress loading
system, a gas filling
system, a
gas detector, a VIC-3D non-contact full-field strain measuring
system and an
acoustic emission system, wherein the
coal sample container comprises a coal sample container shell and a coal sample placement chamber; the top of the coal sample container shell is connected with a
piston in a sealed manner; a first multi-purpose air hole is formed in oneside of the coal sample container shell, and a second multi-purpose air hole and a transparent
sight glass are arranged on the other side of the coal sample container shell; and the stress loading system comprises an electronic
universal testing machine and a first computer. The method comprises the following steps: 1, performing
test sample preparation; 2, establishing a testing apparatus; 3, detecting
air tightness of the apparatus; 4, testing in a gas-free environment; and 5, testing in a gas environment. The
simulation experimental apparatus disclosed by the invention is reasonable in design, convenient to realize and full in functions, the condition that an underground setting
coal pillar is positioned in uniaxial loading can be really reflected, and the
simulation experimental apparatus is high in practicality and convenient to popularize and use.