@article{oai:kumadai.repo.nii.ac.jp:00024001, author = {Obara, Yuzo and 尾原, 祐三 and 佐藤, 晃 and 菅原, 勝彦 and Sugawara, Katsuhiko and Obara, Yuzo and 尾原, 祐三 and Sato, Akira and 菅原, 勝彦 and Sugawara, Katsuhiko}, issue = {1}, journal = {Memoirs of the Faculty of Engineering, Kumamoto University}, month = {Mar}, note = {application/pdf, 論文(Article), A two-dimensional hybrid numerical method for solving elastoplastic problems in rock engineering is presented by coupling two existing methods, namely, the boundary element method and the characteristics method. This method is called as the coupled Boundary Element-Characteristics Method (BEM-CM). The formulation of this method is presented in order to determine the boundary between elastic and plastic regions and calculate the displacement and strain in the plastic region. It is shown that this method is one of accurate and effective methods for estimating not only the shape and extent of the plastic region but also the state of the displacement and strain in the plastic region around underground opening. Then, some typical examples are solved in order to check the accuracy of the results by this method. Finally, the effectiveness of the BEM-CM to the elastoplastic problem in rock engineering are presented and discussed.}, pages = {1--30}, title = {Coupled boundary element-characteristics method for elastoplastic problem in rock engineering}, volume = {44}, year = {1999}, yomi = {オバラ, ユウゾウ and スガワラ, カツヒコ and オバラ, ユウゾウ and スガワラ, カツヒコ} }