Analysis of @infinitely long' excavations using finite and boundary elements. G. Beer and B.A. Poulsen. Internat. J. Numerical Analyt. Methods Geomechanics, June 1994, 18(6), 417--426.
Examples of this type of excavation occur in petroleum (wellbore) engineering. An efficient method is presented which can be used to analyse excavations which are very long in one direction. The method described uses two different types of infinite boundary and finite elements which can be applied to the boundary element or coupled modelling of such excavations. Test examples show that the method is accurate and efficient. Examples of application from the mining and petroleum industry are presented which involve either excavation in one step or sequential excavations. 8 refs.