小浪底水利枢纽区域层状裂隙岩体的分形研究

在已有岩体结构分形研究的基础上,提出了基于Rosiwal截取法的岩石结构分形维数分析方法,即用分形维数的大小反映结构面发育的复杂程度,并运用这种方法对小浪底水利枢纽区域层状裂隙岩体进行了分形研究。研究结果表明:小浪底水利枢纽导流洞区域层状裂隙岩体具有很好的分形特征,岩体结构是受层理控制的,而节理裂隙对岩体稳定性的影响处于次要地位;处于同类构造或沉积区的岩体,分形维数与岩体强度相关;岩体的分形维数是与岩石强度、构造历史和岩性学特征有关的一个参量。

Study on Shapes of Stratified and Fissured Rock in the Region of Xiaolangdi Key Water Control Project

The paper puts forward Rosiwal method of interception-based an analysis method of shaping dimensionality of rock structure based on the existing shaping study of rock structure, i.e. to reflect the complexity of structural surface development by big or small of shaping dimensionality and conduct shaping study on stratified and fissured rock in the region of Xiaolangdi Key Water Control Project by using the method. The study shows that the stratified and fissured rock in the region of diversion tunnels of Xiaolangdi Key Water Control Project has very good characteristics of shaping, rock structure is controlled by bedding and the influence of joint fissure to the stability of rock is less important; the shaping dimensionality and rock strength is correlated for the rock in the same structural and sedimentary region and; the shaping dimensionality is a parameter related to rock strength, structural history and characteristic of lithology.