CFG桩由于其具有成本低、施工方法简单、处理后地基承载力高等显著特点,在市政、铁路、公路等地基处理中得到了广泛的应用,通过某失败的案例,分析影响CFG桩成桩质量的因素,详细介绍CFG桩失稳特征和CFG桩质量检测的缺陷,强调CFG桩质量的控制要点,该典型案例的经验教训可供同类工点借鉴.%Because of those obvious characteristic such as low cost, simple construction method and high bearing capacity, CFG piles (cement-flyash-gravel pile) have been used for ground treatment widely in municipal works, railway works and highway works. In this article, a certain unsuccessful work is cited as a case, the factors which will affect pile quality are analyzed, the instability characteristics and the defects of quality inspection of CFG pile are narrated in detail, and the quality control points of CFG piles are emphasized. The lesson from this typical case will provide reference for same woks.
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