摘要
从分析断续节理岩体中岩桥的破坏模式出发，建立计算断续节理岩体极限强度的理论公式，定量地讨论了节理的排列方式及其力学性质对岩体强度各向异性的影响。通过试验验证，本文所建公式与试验值吻合较好。与前人研究成果比较，本公式具有适应性强，可靠度高的特点。
By analysis of the fracturing mechanism of rock bridges in jointed rock mass under compressive loadings, the formula of ultimate strength of rock mass containing intermittent joints is presented here based on the theory of fracture mechanics or limiting equilibrium. The effect on strength of orientation、 length and arrangement of joints is discussed quantitatively, which demonstrats the strength anisotropy of this kind of rockmass. The computed value has been confirmed by the test results, which show that the formula established in this paper can be effectively and reliably used in evaluating stability and ultimate bearing capacity of rackmass containing intermittent joints.
出处
《重庆建筑大学学报》
CSCD
1997年第2期21-30,共10页
Journal of Chongqing Jianzhu University
关键词
断续节理
峰值强度
节理
岩体强度
承载力
intermittent joints, ultimate strength, strength anisotropy, fracture mechanics
