中文摘要：

阜新海州露天煤矿北帮边坡采用预应力锚固措施进行治理。本文为了给预应力锚固参数的选取提供可借鉴的依据，利用正交试验设计对预应力锚固参数（锚索间排距、预应力、锚固角、锚固段长度、锚索长度）进行了敏感性分析。分析结果表明，这5个参数对边坡稳定性系数的敏感性由大到小依次为：预应力、锚索间排距、锚索长度、锚固段长度、锚固角，预应力和锚索间排距是影响稳定性系数的主要因素。

英文摘要：

Prestressed anchorage has been employed to reinforce northern slope of Haizhou open-pit coal mine in Fuxin City. Therefore, five parameters of prestressed anchorage, namely inter-row spacing of the anchor, prestress, anchorage angle, length of bond part and length of cable, were selected to analyze their sensitivity based on orthogonal experiment design. Sensitivity analysis results suggested that prestress and inter-row spacing of the anchor have the greater sensitivity to the slope stability than that of Other three factors which means that prestress and interrow spacing of the anchor were the main factors determining the stability factor of prestressed anchorage. Thus, an economy and effective control could be made in slope treatment with prestressed anchorage.