The mechanical and hydraulic behaviours of discontinuous rock masses and rock slope stability depend very much on the discontinuity geometry pattern of the rock masses. Identification of statistically homogeneous regions is a pre-requisite to model the discontinuity geometry patterns in a rock mass. The review performed on the available geologic information such as the lithology, the existing fault system, and the tectonic history of the site revealed that the studied site had undergone several tectonic activity phases resulting in a quite complex rock mass statistical homogeneity. This finding led to further investigation on rock mass statistical homogeneity. Three different methods, (a) polar equal area pole plot comparison, (b) linear correlation coefficient analysis and (c) contingency table analysis, were then applied to evaluate the statistical homogeneity of rock masses that exist along a 15 km stretch of the 3B Highway corridor in Vietnam. This study clearly illustrates that at present no strongly reliable objective method is available in the engineering geology or rock mechanics literature to firmly demarcate between the statistical homogeneity and non-homogeneity of rock masses. The study shows that the available methods can only be used either to qualitatively assess or to rank rock masses with respect to the strength of statistical homogeneity. The applied different methodologies led to varying ranking orders on the strength of statistical homogeneity of rock masses. That implies the difficulty in making a judgement on rock mass statistical homogeneity using results obtained from only one method. The paper shows how better decisions were made on rock mass statistical homogeneity by first making a qualitative assessment through examination of available geologic information and then comparing the results obtained from the three different methodologies.

不连续岩体的力学和水力学行为以及岩质边坡稳定性在很大程度上取决于岩体的不连续性几何形态。识别统计上均质的区域是对岩体中的不连续性几何模式进行建模的先决条件。对可用的地质信息（如岩性，现有断层系统和该地点的构造历史）进行的审查显示，该研究地点经历了几次构造活动阶段，导致相当复杂的岩体统计同质性。这一发现导致对岩体统计同质性的进一步研究。三种不同的方法，（a）极地等面积极图比较，（b）线性相关系数分析和（c）列联表，然后将其用于评估越南3B公路走廊15公里长的岩体的统计同质性。这项研究清楚地表明，在工程地质学或岩石力学文献中，目前尚没有可靠的客观方法来可靠地划分岩体的统计同质性和非同质性。研究表明，相对于统计均一性的强度，可用的方法只能用于定性评估或对岩体进行排名。所采用的不同方法导致岩体统计同质性强度的排名顺序发生变化。这意味着仅使用一种方法获得的结果就难以判断岩体统计的均一性。