The rock fracturing in the jointed tunnel face ground with TBM: Experimental and numerical study
To investigate the fracture patterns in the jointed samples during the tunnel boring machine
(TBM) excavation, rock-like material samples were tested in the lab experiments and were
numerically simulated with PFC2D. For this purpose, 33 samples, 150 mm× 150 mm× 50
mm, with 4, 6, and 10 joints and 0°, 30°, 60° and 90° angles between joints and the joints
axis were prepared and tested by two cutters applying load to the sample after being cured
for 28 days. Compressive strength and tensile strength of material were 7.4 MPa and 1 MPa …
(TBM) excavation, rock-like material samples were tested in the lab experiments and were
numerically simulated with PFC2D. For this purpose, 33 samples, 150 mm× 150 mm× 50
mm, with 4, 6, and 10 joints and 0°, 30°, 60° and 90° angles between joints and the joints
axis were prepared and tested by two cutters applying load to the sample after being cured
for 28 days. Compressive strength and tensile strength of material were 7.4 MPa and 1 MPa …
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