在许多常用冻结壁厚度计算公式的推导中,往往把冻结圆筒的计算简化成平面应力或平面应变问题,而且不考虑冻结圆筒内冻土本身的自重影响。例如拉美公式和第四强度的圆筒厚度计算式式中δ_1、δ_2——计算的冻结壁厚度,米;a—冻结壁内半径,米;σ_s——冻土的资用强度, In many derivations of the commonly used formulas for calculating the thickness of frozen walls, the calculation of the frozen cylinder is often simplified to the problem of plane stress or plane strain without regard to the self-weight of the frozen soil itself in the frozen cylinder. For example, Latin American formula and the fourth strength of the cylinder thickness calculation formula δ_1, δ_2 - calculated frozen wall thickness, m; a-frozen wall radius, m; σ_s - permafrost strength,