Study on Mechanism of Rock Joint Normal Deformation Based on Mesoscopic Modified Hertzian Contact Model

• Published in: Rock mechanics and rock engineering Vol. 57; no. 12; pp. 10447 - 10465
• Main Authors: Ma, Haichun, Cao, Yuan, Qian, Jiazhong, Lu, Zhitang, Li, Jianping
• Format: Journal Article
• Language: English
• Published: Vienna Springer Vienna 01.12.2024; Springer Nature B.V
• Subjects: Apertures; Boundary value problems; Civil Engineering; Compression; Constitutive models; Contact angle; Contact force; Contact pressure; Contact stresses; Deformation; Deformation analysis; Deformation effects; Deformation mechanisms; Earth and Environmental Science; Earth Sciences; Effectiveness; Geophysics/Geodesy; Mathematical models; Mechanical properties; Original Paper; Pressure measurement; Rock; Rock masses; Rocks; Seepage; Spatial variations; Stress distribution; Aperture; Joint closure; Modified Hertzian contact model; Contact distribution; Pressure measurement film

Theoretical Hertzian contact model is used to numerically study contact area of rock joints under normal deformation, stress distribution, and spatial variation of aperture during compression. Contact points suffer from the influence of shear angle and the overlap of mutual contacts. The boundary co...