Underground Chambers TRIZ Cases
- Self-moving Tunnel Support Canopy with Telescopic Beam
A self-moving tunnel support canopy advances using a telescopic beam and alternating longitudinal beams to maintain continuous arch coverage.
- Draining Mesh Module Segmentation for Tunnel Drainage Blockage Removal
Segmented semi-pipe channels with strategic attachment means resolve flushing agent circumvention issues, enabling effective blockage removal via GPR scanning.
- Tubular Sleeve Compression Seal for Sewer Pipe Junctions
A tubular sleeve prevents water infiltration by expanding to fill annular spaces caused by cured-in-place liner shrinkage.
- Retractable Mobile Element for Automatic Heavy Structure Lifting
A retractable mobile element articulates on a rod to lift heavy construction structures.
- Undercutting-Covered Excavation for Cross-Transfer Subway Stations
A semi-reverse construction method segments station floors to expedite shield tunneling machine passage.
- Composite Reinforcement Cage for Tunnel Segments
Pretensioning unidirectional composite yarn around fixed pins creates a corrosion-resistant cage that eliminates metal demolition costs.
- Fire-Resistant Tunnel Expansion Joint with Infused Core
Segmented transition sections accommodate irregular tunnel geometries while the composite core withstands 540°C temperatures.
- Segmented Liner Inversion via Cleanout Pipe
Segmenting the liner allows inversion through one access point while maintaining lateral line flow to prevent solid buildup.
- Corrugated Metal Tunnels Reinforced with Carbon Fiber Shotcrete
Carbon fiber nets replace steel in shotcrete layers to eliminate corrosion and extend service life.
- Coated Foam Glass Tunnel Wall Element Assembly
Polyurea-coated foam glass elements merge fire, water, and frost protection into one component, reducing assembly complexity for varying tunnel profiles.