The invention relates to a physical
simulation test
system for true triaxial rockburst of a deep-buried tunnel, and belongs to the technical field of
rock engineering. The physical
simulation test
system for true triaxial rockburst comprises a true triaxial loading
system consisting of a
counterforce rack, a vertical loading system, a horizontal fore-and-after loading system and a horizontal left-and-right loading system, wherein the
counterforce rack is formed by connecting and combining a steel beam frame, a front door and a
back door through pulling rods; the vertical loading system is fixedly arranged at the top of the interior of the
counterforce rack; the horizontal fore-and-after loading system is fixedly arranged on the inner wall of the
back door; and the horizontal left-and-right loading system is fixedly arranged on the right side wall inside the counterforce rack. According to the physical
simulation test system, independent large-
tonnage loading in three directions can be provided to meet the loading requirement of a
model test under deep-buried
high stress condition, the surface of a test piece can be uniformly stressed, an excavation hole on the steel beam frame can be opened after loading so as to excavate the test piece, and blasting disturbance can be stimulated by vibration jacks in the three directions; and the physical
simulation test system can be applied to physical
simulation test research on rockburst of the deep-buried tunnel.