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介绍了地铁盾构隧道注浆基本理论,以及有关规范要求;根据黏性土和砂性土不同的注浆机理,提出采取不同的注浆工艺及措施;对注浆效果无损检测的方法进行了分析。结合工程实例,介绍了对发生沉降的某地铁区间盾构隧道在运营期间实施注浆的过程和效果。
The basic theory of grouting in subway shield tunnel and the requirements of relevant specifications are introduced. According to the different grouting mechanism of cohesive soil and sandy soil, different grouting techniques and measures are proposed. The method of non-destructive grouting effect detection analysis. Combined with the engineering examples, the process and effect of grouting during the operation of a subway tunnel with subsidence was introduced.