通过对本市某综合楼地下室外纵墙出线裂缝的时机、形状、宽度、长度和分布情况以及裂缝产生原因,从沉降记录观察、混凝土级配、现场施工情况及外墙配筋率四个方面进行分析,认为主要由于混凝土早、中期收缩和干缩温差引起,并据此提出了解决办法,收到了较好效果,同时从设计及施工两个方面对地下室墙板的裂缝控制提出了几条该着重注意的措施。 Through the analysis of the timing, shape, width, length and distribution of the cracks in the vertical wall of the underground building in a certain complex building and the causes of the cracks, this paper analyzes the settlement records, the grading of concrete, the on-site construction and the reinforcement ratio of the external wall It is mainly due to the early, mid-term shrinkage and shrinkage temperature difference caused by the concrete. Based on this, some solutions are proposed and some good results are obtained. At the same time, some suggestions are put forward for the crack control of the basement wall from two aspects of design and construction Pay attention to the measures.