Influence of New Energy Materials on Dynamic Interaction between Surrounding Rock and Structure of Heavy-Duty Railway in Small Clearance Crossing Tunnel
Table 1
Construction classification and engineering application of new tunnels adjacent to the existing tunnels.
Engineering applications
Type
When constructing new tunnels in parallel with the existing tunnels and planning new subway lines
Tunnel side by side
Due to the space conditions, the two tunnels must be built on top of each other
Tunnel overlap
Due to space constraints, the two tunnels must be constructed in a staggered way
Tunnel staggered
Pass through the existing tunnel from the upper or lower part of the existing tunnel. It is a transfer node for multiple lines
