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讨论了综合负摩擦力反演计算模型，分析了５种常用双向受压混凝土强度准则的适用条件，并进行了反演对比，研究了影响综合负摩擦力反演值的诸多因素，为今后合理选择综合负摩擦力反演值、进行疏水沉降地层冻结井筒设计提供了可靠的依据。
The calculation model of comprehensive inverse negative friction force is discussed. The applicable conditions of five commonly used two-direction compressive strength criterion are analyzed. Inverse comparison is carried out. Many factors that influence the inversion value of integrated negative friction force are studied. The comprehensive negative friction inversion value is selected to provide a reliable basis for the design of the frozen wellbore for the formation of hydrophobic sedimentation.