The Theory of Post Limit Deformation of Rocks in Geomechanics Problems
The question about destruction of this or that environment happening is actual. Thus it is not enough to say at what combination of loadings and at what value destruction will come. Also it is important to say under what scheme destruction will go. That is construction and the analysis of defining parities of the process of destruction is important In the given work rocks and programs of their loading, including outrageous deformation are investigated. On the basis of studying regular occurrences of to-and outrageous deformation certain conclusions have been done. It is shown that for the description of behavior of rocks it is necessary as in elasticity, both in plasticity, and at a stage of outrageous deformation to know two passport curves of a material and one parameter-a corner on which it is required to turn own tensor basis for the metals, connected with a spherical tensor, deviator. One of passport curves-in essence is a straight line, another has lowered in comparison with a curve intensity of pressure-intensity of deformations value of strength. It means that for destruction of rocks it is necessary to make much smaller efforts, than what are predicted by classical theories. The analysis of the received-defining parities is given, their linkage to the phenomenological mechanical model of a material, consisting of rigid not deformable elements (blocks). Characteristics of system of equations of destructions of mining environment and parities on them are defined. The theorem of unicity of the problems solutions is proved. These solutions are the result of the application of defining parities of destruction when on the same contour a vector of pressure of Cauchi and a vector of displacement are set both. Application of this model to the solution of problems is considered.
A.I.Chanyshev
Institute of mining of the Siberian branch of the Russian Academy of Sciences, Novosibirsk, Russia
国际会议
厦门
英文
55-58
2011-08-10（万方平台首次上网日期，不代表论文的发表时间）