U-shaped steel supports are commonly used in underground engineering, including mining, tunnels, and other infrastructure projects. They are primarily used to support the sidewalls of shafts and tunnels, preventing collapse and displacement of the surrounding strata. Made of high-strength steel, U-shaped steel supports have excellent load-bearing capacity and durability, able to withstand various pressures from the strata.
U-shaped steel supports are typically used in conjunction with anchor bolt systems and shotcrete systems to enhance the overall stability of the support system. They are widely applied in mining, geological exploration, tunnel construction, and underground space development.
Made from high-strength steel, U-shaped steel supports can withstand large amounts of pressure and prevent deformation of the support structure.
Connected using a connecting plate, bolts, or welding.The design makes it easy to transport and install, saving both time and labor costs.
With corrosion-resistant coatings, these supports are suitable for humid and high-pressure underground environments and have a long service life.
The compact design maximizes tunnel space, leaving room for other equipment.









The design of U-shaped steel supports follows mechanical principles, offering high stability and strength. It effectively disperses pressure, preventing the supports from bending or deforming.
Whether in soft soil, hard rock layers, or other complex geological conditions, U-shaped steel supports provide stable support and are widely applicable in different environments.
Compared to other support methods (such as shotcrete support), U-shaped steel frames can be reused multiple times, reducing construction costs.
You can check the different parameters of the product for your procurement inquiries.
| Size | Material | Theoretical weight (kg/m) | cross-sectional area (cm²) | Height | Thickness | Width | Leg thickness |
| 25U | Q275B/ 20Mnk | 24.95 | 31.79 | +1 | +0.5 | +1 | +0.8 |
| 120 | 15 | 130 | 6.3 | ||||
| -1.5 | -1.2 | -3 | -0.5 | ||||
| 29U | Q275B/ 20Mnk | 29 | 37 | +1 | +0.5 | +1 | +0.8 |
| 124 | 16 | 150.5 | 7.2 | ||||
| -1.5 | -1.2 | -3 | -0.5 | ||||
| 36U | 20Mnk | 35.87 | 45.7 | +1 | +0.5 | +1 | +0.8 |
| 138 | 17 | 171 | 7.8 | ||||
| -1.5 | -1.2 | -3 | -0.5 | ||||
| 40U | 20Mnk | 40.05 | 51.02 | +1 | +0.5 | +1 | +0.8 |
| 149 | 20.2 | 171 | 8.5 | ||||
| -1.5 | -1.2 | -3 | -0.5 |

With Anchor Rods: When used in combination with anchor rod systems, U-shaped steel supports can significantly enhance the stability of the support structure. The anchor bolts reinforce the bond between the rock layers and the supports, preventing displacement or loosening of the supports, ensuring the overall safety of the support system.

With Shotcrete System: In particularly complex environments, U-shaped steel supports can be used in conjunction with shotcrete machines. The shotcrete enhances the stability of the strata, further improving the support effectiveness.
If you have any questions about U-shaped steel supports or need a customized solution, contact our sales team, and we will provide the best options tailored to your project needs.
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