Abstract
A stratified rock mass model was founded by FLAC (superscript 3D). The failure mode and anisotropic characteristic of strength for stratified rock mass were analyzed. The analysis results show that the numerical simulation can visually reflect the failure modes of rock samples under different inclination angles β of structural plane. The stiffness of rock sample before peak strength changes in the compressive procedure. With the increase of β, the compressive strength o of rock sample decreases firstly and then increases; when β is in the range of 20°-30° and 80°-90°, ac has the largest sensitivity to β; while β falls in the range of 30°-70°, ac varies little. When O(subscript j)＜β＜90° (O(subscript j) is friction angle of structure plane), the results obtained from numerical simulation and theoretical analysis are in almost the same values; whileβ≤O(subscript j) or β=90°, they are in great different values. The results obtained from theoretical analysis are obvious larger than those from numerical simulation; and the results from numerical simulation can reflect the difference of compressive strength of rock samples for the two situations ofβ≥O(subscript j) and β=90°, which is in more accordance with the real situation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
