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1 前言 水泥土搅拌法按照施工工艺,可分为浆液喷射法和粉体喷射法两种,前者形成深层搅拌桩,后者则形成粉喷桩,二者通称为水泥土桩。通过特别的深层水泥搅拌桩机,在地基深处就地将软土和水泥浆进行机械搅拌,搅拌后,水泥浆和软土发生了一系列物理化学反应,使两者最终硬结成“水泥土”——一种具有整体性、水稳定性和一定强度的优质复合地基。自20世纪80年代引入以来,在我国得到了广泛的应用,日益受到广大技术人员的重视。
1 Introduction Cement-soil mixing method according to the construction process, can be divided into two kinds of slurry spray method and powder spray method, the former forming a deep mixing pile, the latter is the formation of dry mixing piles, both commonly known as cement soil piles. Through a special deep cement mixing pile driver, the soft soil and cement slurry are mechanically stirred deep in the ground. After stirring, a series of physical and chemical reactions take place between the cement slurry and the soft soil, so that the two are finally cemented into cement. Soil”—a high-quality composite foundation with integrity, water stability, and a certain degree of strength. Since its introduction in the 1980s, it has been widely used in China and is increasingly valued by a large number of technical personnel.