The Chengde Civil Airport has the maximum amount of earthwork and the largest filling height among the airport constructed in rock site in recent years.The maximum height of the fill slope ex-ceeds 100 m and the amount of earthwork reaches 5 ×107 m3 .One of the key factors in the design of air-port is to determine a reasonable factor of safety against slope stability.A typical fill area is selected as the test section and the stability analysis is performed using the SLOPE/W in GEO-SLOPE.The compre-hensive slope ratio of the test section is determined.%承德民用机场是近年来国内以石方为主的机场建设中遇到的土石方量最大、填方高度最高的机场工程，最大填方高度超过100 m，土石方填挖总量达5×107 m3。选取合理的边坡稳定安全系数是机场设计过程中面临的难点之一。试验段填筑体选在具有代表性的填方区域，通过 GEO-SLOPE 程序的 SLOPE/W模块对试验段边坡进行了稳定性分析，确定了试验段填筑体边坡的综合坡比。
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