Abstract: Based on the fundamental data collected from field investigation, the rock mass integrity of a series of samples was obtained. Considering the influence of lithology and geological structure on the rock mass integrity, a multi-factor weighted superposition model was established to predict the integrity of slope rock mass in the whole research area. The prediction results show that the rock mass integrity of Yangtze River slope is worse than that of the tributaries slope; moreover, the prediction results show that there are known landslide hazard points in dark areas. One of them has slid, which shows that the forecast results conform to the actual situation. Therefore, the prediction results can be applied to the stability analysis of rock slope and provide basis for the prevention and control of geological disasters in this region.

Key words: geotechnical engineering, the integrity of rock mass, weighted superposition, GIS, multi-factor

摘要： 通过野外现场调查采集到的基础数据，得到一系列样本点的岩体完整程度，并考虑地层岩性以及地质构造对岩体完整程度的影响，建立多因子加权叠加模型，对整个研究范围内的边坡 岩体完整程度进行预测。预测结果显示：长江干流边坡岩体完整程度明显差于支流边坡，而且预测结果呈深色区域均有已知滑坡灾害点分布，其中一处已经发生滑动，说明预测结果符合实际 情况。该预测结果可以应用于岩质边坡的稳定性分析以及作为该区域地质灾害防治规划的依据。

关键词: 岩土工程, 岩体完整程度, 加权叠加, GIS, 多因子