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首先介绍传统的块体理论近来的发展、应用与局限。块体理论限于研究岩石开挖表面上的可移动块体。采用切割法找到所有组成岩体的任何块体,基于裂隙的平均长度与平均间距,引进产生三维裂隙多边形的统计方法。基于裂隙多边形,介绍切割三维块体的一般方法。给定一个移动方向,提出搜索关键块体的一般方法。岩体的边界可以是任何自然岩石边坡与人工开挖的任何岩体表面。该方法适用于统计产生的分组裂隙与人工输入的个体裂隙,所引进的方法属于三维非连续变形分析的切割程序DC的应用。
First of all, introduce the recent development, application and limitation of traditional block theory. Block theory is limited to the study of movable blocks on rock excavation surfaces. All the blocks that make up the rock mass are found by the cutting method. Based on the average length and the average spacing of the fractures, a statistical method to generate the three-dimensional fracture polygons is introduced. Based on the fracture polygons, a general method of cutting 3D blocks is introduced. Given a moving direction, a general method of searching for critical blocks is proposed. The boundary of the rock mass can be any rock mass surface that has been excavated from any natural rock slope or rock. This method is applicable to the statistics of the generated grouping cracks and the artificial input of individual cracks. The introduced method belongs to the application of the cutting program DC of three-dimensional non-continuous deformation analysis.