The thesis analyzes cast-in-situ concrete apron cracking causes,such as unqualified earthwork backfill,irrational construction meth-od,inappropriate settlement joint,expansion joint and water-dropping slot,and unqualified apron width and height and so on. In light of con-struction problems,it formulates specific preventive measures,with a view to guarantee apron construction quality.%分析了现浇混凝土散水开裂的原因，包括土方回填质量不合格，施工方法不合理，沉降缝、伸缩缝和落水口设置不当，散水宽度和标高不符合要求等内容，针对各施工环节出现的问题，制订了具体的防治措施，以确保散水施工质量。
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