Abstract
In this article, based on crack surface boundary conditions, the complex stress functions for a tunnel containing a radial crack under compression was obtained, and boundary collocation method was ...
Highlights
With increasing scale of tunnel constructions in mining and transport engineering, a series of tunnel accidents have been exposed, such as rock burst and roof fall
The tunnel is inside an infinite plane, and the corresponding complex stress function can be obtained based on the stress conditions of crack surfaces
For a tunnel with a radial crack emanating from the tunnel edge, the complex stress functions were obtained according to the crack surface stress condition
Summary
With increasing scale of tunnel constructions in mining and transport engineering, a series of tunnel accidents have been exposed, such as rock burst and roof fall. Cracks in rock mass are closed in general, and crack surface friction will affect crack tip SIFs significantly; it should be considered in the study of cracks under compression.[21,22,23,24] The tunnel is inside an infinite plane, and the corresponding complex stress function can be obtained based on the stress conditions of crack surfaces.
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