Matching technology of space decomposition method for tunnel passing through large karst cave

The invention discloses a matching technology of a space decomposition method for a tunnel passing through a large karst cave. In karst tunnel construction, when the tunnel passes through the large karst cave area and the space decomposition method is adopted to treat the large karst cave, corresponding technical measures often need to be adopted to treat the technical problems when the tunnel passes through the large karst cave. According to the space decomposition method, the tunnel top karst cave space, the tunnel bottom karst cave space and the tunnel two-wing karst cave space are treated in sequence, and the large karst cave is treated through the tunnel top space treatment technology, the tunnel bottom space treatment technology and the tunnel two-wing space treatment technology. 岩溶隧道施工中常遇到隧道穿越大型溶洞区，采用空间分解方法治理大型溶洞时，需要采取相应的技术措施来处理隧道穿越大型溶洞的技术难题。根据空间分解方法，按照隧道顶部溶洞空间、隧道底部溶洞空间、隧道两翼溶洞空间的顺序分别治理，分别采取隧道顶部空间处治技术、隧道底部空间处治技术和隧道两翼空间处治技术治理大型溶洞。