目前人们对大直径扩底桩端阻力折减问题有不同的看法。
The current viewpoints on the modifying coefficient problem of end-bearing resistance of large diameter belled piles are different.
振动夯扩桩是在传统振动沉管灌注桩施工工艺的基础上，对混凝土灌注桩的桩端进行了部分改进。
The reinforced concrete pile with ram enlarged base is developed from the cast in place concrete pile.
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