滑坡通常受岩体中的断层、层面和节理等不连续面的控制。辨识这些特征面是初步现场研究最重要的部分,研究方法通常包括航空拍照、地表测图和钻孔取心等。然后进行稳定性分析来估价岩坡的稳定性。分析方法详见Hoek等人(1973)的著作,然而对全面设计公路或露天矿边坡来说,详细的稳定性分析常因可获得的地质资料不足而行不 Landslides are usually controlled by discontinuities such as faults, bedding planes, and joints in the rock mass. Identification of these feature surfaces is the most important part of the initial field study, which typically includes aerial photography, surface mapping and drilling coring. The stability analysis is then used to assess the stability of the rock slope. Analytical methods can be found in the work of Hoek et al. (1973), but for a full-scale design of a highway or open pit slope, a detailed analysis of the stability often fails due to insufficient available geological data