TY - JOUR
ID - 2222
TI - Interaction between One Internal Hole and Two Neighboring Joints under Uniaxial Compression using an Experimental Test and a Numerical Simulation
JO - Journal of Mining and Environment
JA - JME
LA - en
SN - 2251-8592
AU - Sarfarazi, V.
AU - Asgari, K.
AU - Mohamadi Bolban Abad, Sh.
AD - Academic Member, Department of Mining Engineering, Hamedan University of Technology, Hamedan, Iran
AD - Research Scholar, Department of Mining Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
AD - Research Scholar, Hamedan University of Technology, Hamedan, Iran
Y1 - 2022
PY - 2022
VL - 13
IS - 2
SP - 407
EP - 420
KW - compressive test
KW - joint angle
KW - joint distance
KW - hole, PFC2D
DO - 10.22044/jme.2021.11157.2095
N2 - The interaction between an internal hole and two surrounded joints under a uniaxial compression are examined using the experimental and discrete element procedures. Inside the concrete sample, two notches and an internal hole are created. The joint angle change from 0° to 90° with an increment of 30°. The distances between the joint and the internal hole are 2 cm and 3 cm. Also the numerical models are provided. The joint angle change from 0° to 90° with an increment of 15°. The distances between the joint and the internal hole are 2 cm, 3 cm, and 4 cm. The compressive strength is 7.2 MPa. The rate of loading is 0.005 mm/s. The experiment indicates that the failure process is significantly dependent on the notch angle and the joint distance from the hole. The pattern of fracture and mechanism of failure of joints affect the shear strengths of the samples. The models with joint angles of 30° and 60° have a less compressive strength since the pure tensile failure occurs in these configurations. The model strength decreases with decrease in the join spacing. In fact, in the case that the joint spacing is 2 cm, the interaction between the hole and the neighboring joint is so strong. Consequently, the compressive strength is declined. In both approaches of the numerical simulation and experimental methods, the pattern and strength of failure are identical.
UR - https://jme.shahroodut.ac.ir/article_2222.html
L1 - https://jme.shahroodut.ac.ir/article_2222_d515f00d0b60ccc0ac969a55f134e2d8.pdf
ER -