岩体裂隙网络的小世界特性

The “Small-world”Characteristics of Rock Fracture Networks

岩体中裂隙的分布是研究岩体内部渗透性和岩体稳定性的关键。自然界存在的交错分布的岩体裂隙可以看作为一种网络形态,从此观点出发,应用复杂网络理论中相关参数对这种裂隙网络进行了分析。分析结果认为,岩体裂隙网络拥有较小的平均最短路径长度和较大的集聚系数,也就是说,裂隙网络表现出小世界特性。对于分析岩体裂隙的渗透性或者浆体移动规律等具有辅助作用。

The distribution law of fracture in rock mass is the key to study rock permeability and engineering stability. Rock fractures of staggered distribution which exist in nature can be looked as a kind of network. Based on this view, the fracture networks are analyzed by using complex network theory with relevant parameters. The results showed that rock fracture networks owned low average shortest path-length and high clustering coefficient. In other words, rock fracture networks appear the properties of ＂small-world＂. The results have an auxiliary effect on analyzing rock permeability and magma displacement law.