At last, the formulation of allowable minimum bending radius limiting the change of the tube-wall thickness is derived, and proved to be of practical value.
推导出限制弯管壁厚变化量的许用最小弯曲半径公式，经试验验证具有一定的实用价值。
Based on the minimum curvature radius definition and mid value theorem, the pape gives the method of determining the limit load of pile foundation through extreme value analysis.
文章根据最小曲率半径定义和中值定理，通过极值分析方法来确定桩基极限荷载。
Theoretical analysis proved that the curve radius critical value of free way should be adopted by the limit of minimum radius .
理论分析证明，高速公路曲线半径临界值应采用极限最小半径。
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