TY - JOUR
ID - 759
TI - A boundary element/finite difference analysis of subsidence phenomenon due to underground structures
JO - Journal of Mining and Environment
JA - JME
LA - en
SN - 2251-8592
AU - Mirsalari, S. E.
AU - Fatehi Marji, M.
AU - Gholamnejad, J.
AU - Najafi, M.
AD - Department of Mining and Metallurgical Engineering, Yazd University, Yazd, Iran
Y1 - 2017
PY - 2017
VL - 8
IS - 2
SP - 237
EP - 253
KW - Subsidence
KW - Horizontal strain
KW - Semi-infinite problems
KW - Indirect boundary element method
KW - Finite Difference Method
KW - Higher order elements
DO - 10.22044/jme.2016.759
N2 - Analysis of the stresses, displacements, and horizontal strains of the ground subsidence due to underground excavation in rocks can be accomplished by means of a hybridized higher order indirect boundary element/finite difference (BE/FD) formulation. A semi-infinite displacement discontinuity field is discretized (numerically) using the cubic displacement discontinuity elements (i.e. each higher order element is divided into four sub-elements bearing a cubic variation in the displacement discontinuities). Then the classical finite difference formulation (i.e. the backward, central, and forward finite difference formulations) is hybridized using the boundary element formulation, enabling us to obtain the nodal tangential stresses and horizontal strains along the elements. Several example problems are solved numerically, and the results obtained are then compared with their corresponding results available in the literature. These comparisons show the effectiveness and validness of the proposed method. A classical practical problem is also used to verify the applicability of the hybridized method.
UR - http://jme.shahroodut.ac.ir/article_759.html
L1 - http://jme.shahroodut.ac.ir/article_759_78a18a39f87eaaf3feca2da9a6c307ee.pdf
ER -