| 张奇华.基于块体加与块体减算法的岩石块体几何形态分析[J].水利学报,2006,37(4):418-424 |
| 基于块体加与块体减算法的岩石块体几何形态分析 |
| Morphological analysis of rock blocks by block adding-subtracting method |
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| DOI： |
| 中文关键词: 块体理论 凹形块体 几何形态分析 块体加与块体减 |
| 英文关键词: block theory concave block morphological analysis block adding subtracting method |
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| 中文摘要: |
| 本文提出以块体加与块体减算法进行复杂岩体的形态分析。块体加是在一个凹形或凸形块体的基础上，加上一个或多个体，使之成为更复杂的形体；块体减的含义则相反。采用提出的块体加与块体减的基本运算规则，面面相减与面面相加的算法，将运算后的面与顶点统一编号，并通过块体体积与各面面积的计算，实现了块体加与块体减算法。算例分析表明，该方法可以构造出复杂的块体形态，并可在实际工程分析中得到应用。 |
| 英文摘要: |
| Block morphological analysis is the basic task in application of block theory to rock engineering. In this paper a method named as block adding subtracting is suggested for analyzing the complicated block shapes. The block adding means adding blocks to a rocky block and making two blocks or more blocks work together, whereas, the block subtracting means subtracting one or more block zone from the rocky block. The basic operation rules of block adding and subtracting, algorithm of face adding and face subtracting are presented. By unified numbering of the block faces and intersections and calculating the volumes and face areas of the blocks the adding and subtracting of the blocks can be realized. An example is given to illustrate the application of this method to construct the omplicated rocky block shape to simulate the foundation of a dam. |
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