Solutions
Four solutions are summarized for different scenarios: defect treatment of hydropower engineering, defect treatment of high-speed rail transit engineering, defect treatment of water resource environment engineering, and defect treatment of new energy power generation engineering
Subway tunnel segment leakage control
- Project Background:
The joints of tunnel segments in urban rail transit, small cracks in the segments themselves, and manholes, are affected by long-term vibration from metro trains and slight disturbances from uneven ground settlement. This can cause water leakage in the segments, or even sand gushing from the segment joints, affecting the safety of the metro and tunnel. Such defects are common in metro maintenance.
- Solution:
For leakage in the segmented lining, the method of grouting behind the wall is usually adopted for repair. The grout penetrates into the mud and sand layer, foams when it encounters water, fills the gap between the pipe wall and the soil, blocks the leakage channel, and plays a role in anti-seepage maintenance. If the crack is in a load-bearing or stressed component, epoxy grouting material should be used for sealing and reinforcement.
- Material Selection:
9105 emergency oil-soluble polyurethane grouting material, HK-WG solvent-free epoxy grouting material
Material System Selection:
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