The standard penetration test(SPT)of base-pile of the artificial bored pile is very essential according to the feature of this project.
根据本工程实例情况，人工挖孔桩桩底标贯试验是非常必要的。
The standard penetration test(SPT)of base-pile of the artificial bored pile is very essential according to the feature of this project.
根据本工程实例情况，人工挖孔桩桩底标贯试验是非常必要的。
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