以杨白线铺北隧道施工工程为例,简要介绍了施工中出现的溶洞处理措施,重点对拱顶溶洞堆积体冲击破坏而发生塌顶的处理措施进行了具体阐述,以期指导今后同类工程施工。%Taking the Pubei tunnel project along Yangbai railway as the example,the paper briefly introduces the treatment measures for the karst caves,and has the factual illustration on the treatment measures for the collapses caused by the lashed accumulation body of the arch top karst cave,so as to direct the similar projects in future.
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