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。
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。
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