Steel tunnel lining - Metal building construction

Author: Morgan

Nov. 27, 2024

Steel tunnel lining - Metal building construction

3 & 4 Rebar Lattice Girders

3 Rebar Lattice girders in conjunction with shotcrete achieve an excellent level of support in tunneling. They consist of steel bars welded together in triangular pattern and they are made to suit the shape of the tunnel. This combined system acts as an armor that provides balanced support and reduced consumption of shotcrete.

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ATOM STEEL LTD  lattice girder system is totally surrounded by concrete. There are no unconsolidated areas, voids or fissures visible. It represents a complete homogenous composite structure, reduces ground settlement and prevents the ingress of water.

Advantages

  • Used in conjunction with shotcrete, lattice girders allow rapid tunnel advancement.
  • Lattice girders provide immediate and safe roof support over the excavated area
  • Dimensions and characteristics of lattice girders are made according to customer specifications.
  • Reduces weight by lowering quantity of steel, while providing greater compressive strength
  • Lattice girders can be stacked for shipping in containers
  • Low weight facilitates installation process
  • Reduces and eliminates empty areas upon shotcrete application

ATOM STEEL LTD lattice girder system has been tested and successfully installed in many tunnel projects

It is made from reinforcement steel of B500B quality, with three or four bearing longitudinal bars which are connected by diagonals with appropriate welding. One tunnel arch is comprised of usually five segments and is connected by screws and pipes.

ATOM STEEL LTD produces all kinds of lattice girder tunnel lining in accordance with given specifications and customer designs.
Metal support arches are used in a wide range of applications and with many different soil conditions, offering the advantage of being resistance to compression and traction efforts with a high bending moment. This support technique is suitable for soil conditions that are very prone to subsidence due to the efforts caused by converging soils.
Cold curved beams are used to adapt to the excavation diameter, using the radii required to install them in parallel to the soil. Our entire manufacturing process, from design, bending, welding and dispatch, is certified by:

EN- (CE marking) yand governed according to the ISO quality system.

High-resistance beams that maintain the cross-section dimensions with a low deformation or in which the decompressed soil thickness around the tunnel must be limited within strict parameters. The sectors are joined to form the entire arch using bolted joints between the plates.

HEB Support arches

Metal support arches are used in a wide range of applications and with many different soil conditions, offering the advantage of being resistance to compression and traction efforts with a high bending moment. This support technique is suitable for soil conditions that are very prone to subsidence due to the efforts caused by converging soils.
Cold curved beams are used to adapt to the excavation diameter, using the radii required to install them in parallel to the soil. Our entire manufacturing process, from design, bending, welding and dispatch, is certified by:

EN- (CE marking) yand governed according to the ISO quality system.

Kaichaungxing are exported all over the world and different industries with quality first. Our belief is to provide our customers with more and better high value-added products. Let's create a better future together.

Rigid &#;HEB&#; support arches

High-resistance beams that maintain the cross-section dimensions with a low deformation or in which the decompressed soil thickness around the tunnel must be limited within strict parameters. The sectors are joined to form the entire arch using bolted joints between the plates.

Simple Trolley - Tunnel Concrete Formwork System

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Brand:Lijian

Transportation:Ocean,Land

Packaging:According to customers request

Supply Ability:40 days after receive the order

Place of Origin:China

Productivity:T/Year

After the Simple Trolley is positioned, the operator should first wedge the wheel with a wooden wedge and then adjust the trolley under the command of the surveying personnel. When the offset of the trolley is large, the cylinder should be adjusted...

The company is the world’s best Steel Tunnel Trolley for Construction(ie,be,de) supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.

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