填料必须分层摊铺、压实。
爆破产生的残渣通过压实形成地面，而没有在基地上进行新的铺装：采用干预性的表面而不是对场地进行挖掘。
The blasting residues were compacted and refused on the site to create the project's new ground: a disturbed surface rather than one extracted from the territory.
现在，工程师一致认为合理的路堤施工要求土壤分层摊铺，洒湿或晾干至接近最佳含水量并压实。
Today, engineers agree that proper embankment construction requires that the soil be spread in layers, moistured or dried to something near an optimum moisture content, and compacted.
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