以某住宅楼工程的鉴定分析为实例,对管沟开挖施工对邻近建筑的影响情况进行了分析,指出环境温差影响是产生裂缝的主要原因,管沟施工未对住宅楼造成明显影响。同时建议住宅楼南侧管沟应尽快回填,防止继续坍塌,并对坍塌路面进行处理。鉴定方法可为同类工程事故的处理提供借鉴。 Taking the identification and analysis of a residential building project as an example, the influence of trench excavation on the adjacent buildings is analyzed. It is pointed out that the influence of ambient temperature difference is the main reason for the cracks and the trench construction has no obvious effect on the residential buildings. At the same time, it is suggested that the trench on the south side of the residential building should be backfilled as soon as possible to prevent further collapse and to deal with the collapsed road surface. Identification method can provide reference for the handling of similar engineering accidents.