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Grouting pipe
Pre-supporting small guide pipes are a technique used in tunnel excavation, mainly for pre-supporting sections with short self-stabilization time, such as weak and fractured zones, shallow buried sections, tunnel entrance biased sections, sand layers, gravel sections, and fault fracture zones.
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Advance small grouting pipe- Grouting pipePre-supporting small guide pipes are a technique used in tunnel excavation, mainly for pre-supporting sections with short self-stabilization time, such as weak and fractured zones, shallow buried sections, tunnel entrance biased sections, sand layers, gravel sections, and fault fracture zones.
- Casing PipeRigid sleeves, also known as rigid waterproof sleeves, are constructed from A3 steel or stainless steel pipes with welded water-stop rings. The space between the sleeve and the pipe is sealed with rigid material, and there are no internal shock-absorbing components.
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