节理岩体断裂的分形机理研究

STUDY ON FRACTAL MECHANISM OF FRACTURES IN JOINT ROCK MASS

摘要:

本文在考察了节理化岩体的断裂力学特征的基础上,结合现代分形几何原理,建立起追踪裂纹断裂分形模型,对不连续岩体的断裂韧性的分形效应进行了深入研究,并通过压剪试验得到验证。

关键词:岩体变形;断裂演变;分数维;模型模拟

Abstract:

This paper established tracing craking fractal model by combining with the principle of fracture mechanics of rock mass and based on analyzing the fracture mechanics feactures of rock mass,probed into the fractal effect of the fracture toughness of discontinuous rock mass, and Verified the model through press-shear test.

Key words:Rock mass deformation;Fracture evolution;Fractal dimension;Model simulation