Also it does not need preloading. It can be arranged sparsely to reduce the number of piles and the cost of construction on a large scale.
具有可布置成疏桩、减少用桩数量，进而大幅度降低工程建设成本的长处。
Statistics through a large number of static load pile tests shows that hammer-driven pedestal piles through granite residual soil have advantages in their bearing capacity and cost.
通过对大量静载试验成果的统计，证明花岗岩残积上中夯扩桩在承载能力与造价上的优势。
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