Construction method for tunnel contact passage in shield section of underground railway
A communication channel and interval tunnel technology, which is applied in the construction field of the subway shield interval tunnel communication channel, can solve the problems of high construction cost, large frost heaving and thawing, and adverse effects of the surrounding environment, so as to reduce the construction cost and shorten the construction period Effect
- Application Information
AI Technical Summary
Problems solved by technology
 The present invention will now be further described in detail with reference to the drawings and specific embodiments.
 See figure 1 Take the construction of a connecting passage in a subway tunnel project as an example. A connecting passage 10 needs to be built between the subway up-and-down tunnel 12 and the down-going tunnel 11. The buried depth of the connecting passage 10 is 16.607m, the outer wall distance of the tunnel is 5.95m, and the height difference between the tunnels 0.11m. The soil layer that the connecting passage 10 penetrates is ④silty clay and ⑤1 clay.
 The specific construction of the project is carried out according to the following steps:
 1. Reinforce the soil in the entrance and exit area
 Carry out foundation grouting reinforcement for the soil outside the concrete segment near the area where the pipe jacking machine enters and exits the up and down tunnels 12 and 11 [KR1], [KL1] steel pipe segment connecting channel...
|Unconfined compressive strength||aaaaa||aaaaa|
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction