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第 3 章 基础工程机械 PowerPoint PPT Presentation


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3.1 打桩设备. 第 3 章 基础工程机械. 基础是将上部荷载传递到地基的一种结构物,而桩基础就是其中一种。当天然地基上的浅基础沉降量过大或地基承载能力不能满足建筑物得到要求时,常采用桩基础。现在桩基础已广泛应用在海上采用平台、大型港口、深水码头及各种桥梁的基础工程中。. 按桩的施工方法,桩可分为预制桩和灌注桩两类。 预制桩 是在工厂或施工现场制成的各种形式的桩,用沉桩设备将桩 打入、压入或振入土中,或有的用高压水冲沉入土中。 灌注桩 是在施工现场的桩位上用机械或人工成孔,然后在孔内灌注混凝土而成。根据成孔方法的不同分为 挖孔、钻孔、冲孔灌注桩,沉管灌注桩和爆扩桩等。.

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第 3 章 基础工程机械

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3-416-40m400-1500KN80-172t


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120-50MPa50-100L/min3D2-SZ3D2-SZ3-1

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