通过某高速公路Ⅲ类基桩处理实践,从施工方法、地下水及恶劣天气影响3个方面对Ⅲ类基桩产生的原因进行分析,对Ⅲ类基桩的缺陷部位压浆补强、增设大承台方、补桩(骑马桩)、原桩破除原位成桩4种处理方案进行分析比选,并介绍了原桩破除原位成桩处理技术。 Through the practice of the treatment of Grade III piles on a highway, the reasons for the occurrence of Type Ⅲ piles are analyzed from the aspects of construction methods, groundwater and adverse weather conditions. The grouting reinforcement is applied to the defects of Grade III piles, Taiwan side, fill pile (riding stakes), the pile in situ pile removal four kinds of treatment options for analysis and comparison, and introduced the pile in situ pile pile processing technology.