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介绍了香港新机场高速路２．５ｍ、深１００ｍ灌注桩成孔过程中钢护筒的沉入拔出、穿越复杂地层及护壁化学泥浆的无公害处理等技术。
This paper introduces the technology of sinking and removing steel casing, crossing the complex strata, and protecting the chemical mud of the wall without pollution during the hole formation of 2.5m deep and 100m deep cast-in-place piles in Hong Kong New Airport Expressway.