Equivalent Elastic Moduli of Cable Bolted Finite Elements.
Duan F; Pariseau WG
Paper in Computer Methods & Advances in Geomechanics Balkema 1991 :1135-1140
This paper presents a new computational procedure for approximating the equivalent elastic moduli of cable-bolted finite elements. The new approach replaces a heterogeneous borehole assemblage of reinforcing steel cable, cement annulus, adjacent rock, and the steel-cement and cement-rock interfaces contained within a finite element by a homogeneous, anisotropic material that is equivalent, on average, to the original assemblage. The new procedure readily incorporates cable bolt reinforcement effects in three-dimensional finite element models of excavations in rock. An important practical advantage is that changes in the pattern of reinforcement can be made without the need to rebuild the mesh, an otherwise costly procedure in the engineering design of cable bolt support systems in rock. The stiffening effects of cable bolt reinforcement are small at practical bolt spacings.
IH; Final Contract Report;
Paper in Computer Methods & Advances in Geomechanics; Balkema, 1991, PP. 1135-1140
University of Utah