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在城市地下轨道建设中,地下溶洞的存在和发育对隧道的建设和运营造成较大的风险,因此必须对地下溶洞进行处理。本文结合工程实例,明确了盾构隧道施工中溶洞处理的目的与范围,从地质勘探、溶洞处理措施及注浆工艺等方面详细介绍了溶洞处理的施工技术,并对溶洞处理的效果进行检测分析,保证盾构隧道施工的安全。本文就盾构隧道穿越溶洞区域难题,提出了处理措施,以指导类似施工。
In the construction of urban underground orbit, the existence and development of underground caverns pose a great risk to the construction and operation of the tunnel, so the underground caverns must be treated. Based on the engineering examples, the purpose and scope of cave treatment in shield tunnel construction are clarified. The construction technology of cave treatment is introduced in detail from the aspects of geological exploration, cave treatment measures and grouting technology. The effect of cave treatment is also analyzed , To ensure the safety of shield tunnel construction. In this paper, the tunnel tunnel crossing the cave problems, proposed treatment measures to guide similar construction.