Abstract Large deformation of surrounding rocks is one of the geological hazards in underground construction. To forecast the deformation of surrounding rocks accurately and efficiently, a rock deformation forecasting method is utilized by applying extension theory based on an analytic hierarchical process, in which the element model is set up by choosing important parameters (such as the uniaxial compressive strength Rc, principal geostresses, ratio of strength and stress, elastic modulus) on the basis of element theory, extension set, and correlation function calculation. Weight values of various factors are then determined and combined with the analytic hierarchical process. The deformation of the surrounding rocks is confirmed by a correlation calculation of the deformation of the surrounding rocks and a comparative analysis is carried out regarding the deformation results obtained by a fuzzy analytic hierarchical process.
Abstract：
Large deformation of surrounding rocks is one of the geological hazards in underground construction. To forecast the deformation of surrounding rocks accurately and efficiently, a rock deformation forecasting method is utilized by applying extension theory based on an analytic hierarchical process, in which the element model is set up by choosing important parameters (such as the uniaxial compressive strength Rc, principal geostresses, ratio of strength and stress, elastic modulus) on the basis of element theory, extension set, and correlation function calculation. Weight values of various factors are then determined and combined with the analytic hierarchical process. The deformation of the surrounding rocks is confirmed by a correlation calculation of the deformation of the surrounding rocks and a comparative analysis is carried out regarding the deformation results obtained by a fuzzy analytic hierarchical process.
REN Yang,
LI Tian-Bin
.Application of Large Deformation Forecast Method for Surrounding Rocks Based on Hierarchical Analysis and Extension Theory[J] MODERN TUNNELLING TECHNOLOGY, 2011,V48(4): 6-12
2011, Vol. 48 