三峡工程区岩体断裂的分形研究  

A FRACTAL STUDY OF ROCK MASSES FRACTURES IN THE DAM SITE AREA OF THE THREE GORGES PROJECT

作　　者：易顺民[1] 唐辉明[2] 

机构地区：[1]四川联合大学高速水力学国家重点实验室,成都610065 [2]中国地质大学,武汉430074

出　　处：《大地构造与成矿学》1998年第2期177-184,共8页Geotectonica et Metallogenia

基　　金：国家自然科学基金

摘　　要：根据分形理论，系统地研究了三峡工程区岩体断裂的分形结构特征。结果表明，三峡工程区岩体断裂系统的断层空间分布、断层岩粒度分布、岩石裂隙和岩体结构面等不同尺度的断裂均具有统计意义上的自相似性．分维可作为描述岩体断裂系统的参数，反映了岩体断裂的形成演化特征和工程地质性质的差异性。岩体断裂系统的分形结构从新的角度揭示了断裂系统的复杂性和岩体质量的优劣性，具有重要的学科理论和工程实践意义。In this paper, the fractal structure characteristics of rock masses fractures are studied systematically based on fractal theory. The results show that different scale fractures of the rock masses fractures system in the dam site area such as the spatial distribution of faults,granulometric composition of fault rock, rock fissure and structural plane of rock masses are self-similar in statistics. The fractal dimension can be taken as a parameter to describe the rock masses fractures system of and reflects the difference of engineering geological property and evolutional characteristic of the rock masses fractures. Fractal structure of rock massesfractures reveals the complexity of the rock masses fractures system and difference of rock masses quality from a new point of view and it has an important significance in the theory and engineering practice.

关 键 词：三峡工程 岩体断裂 分维结构 分形结构 

分 类 号：TV698.11[水利工程—水利水电工程] P542.3[天文地球—构造地质学]