tunnel liner corrugated metal pipe
Tunnel Liner Plate is a segmented corrugated steel plate system designed specifically for lining soft ground tunnels and relining existing conduits under highways and railroads.
Individual plates weigh between 15 and 41 kg – light enough to carry by hand into a confined space. Plates are assembled into continuous rings, advancing tunnels in 500 mm long segments.
Tunnel Liner Plates can be completely assembled from inside the tunnel and grouted at regular intervals. As the tunnel progresses, the liner plate continually generates ring support, providing a safe launch region for workers and equipment to advance.
Details ofmulti tunnel liner plate
Standard: ASTM, AISI, DIN, EN, CCPC
Place of Origin: Hebei, China (Mainland)
Brand Name: Qijia
Model Number: qj300*110
Type: assembled
Steel Grade: 400 Series
Application:road culvertand bridge corrugated steel pipe
Certification: ISO
Welding Line Type: Spiral Welded
Thickness: 2-12mm
Outer Diameter: 3.2
GRADE: 1st corrugated steel pipe
applying materials: the best steel
Features ofmulti tunnel liner plate
Lightweight elements allow for simple assembly in confined spaces
“Bolt from inside” workplace safety feature
Small sections allow for minimal exposed excavation
Can be used with poling plates, full shield or half-shield tunnel methods
High seam strength bolted connections
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