建立了深井APR测试管柱的力学模型 ,采用接触间隙元理论方法对深井APR测试管柱进行了力学分析 ,给出了管柱各点 (包括螺纹 )应力和强度评定条件 ,为预测管柱的强度和安全评定提供了重要的理论依据 .该方法在 5 .5km的深井中得到应用 ,悬重误差为 3 .2 3 % The mechanical model of deep well APR test string was established. The contact gap element theory method was used to analyze the mechanical properties of deep well APR test string. The stress and strength conditions of each point (including thread) of the string were evaluated. Strength and safety assessment provide an important theoretical basis for the application of this method in deep wells of 5.5km, suspension error of 3.3%