When working for my previous organisation in the infrastructure, I came across reaction frame all the time. First in Ahmedabad when Afcons was launching TBM in 2017-18, I came across fixing reaction frame. So from that time I got many opportunities with various infrastructure companies, even great minds from RVNL and how serious they are about this topic. I hope this article is useful to you and save your lot of time, which will take you to the same platform discussing at the time of TBM launch or during the planning of launch.
The reaction frame for launching a tunnel boring machine (TBM) is a critical component of the tunneling process. It is designed to absorb the reaction forces that are generated as the TBM advances through the ground, and to provide a stable platform for the machine to operate from.
The reaction frame typically consists of a steel frame that is anchored to the ground using hydraulic jacks or other means. The frame is designed to resist the thrust and torque generated by the TBM as it advances, and to distribute the reaction forces evenly across the ground.
The design of the reaction frame will depend on a number of factors, including the size and weight of the TBM, the geology of the ground, and the length and diameter of the tunnel being excavated. The frame must be able to withstand the maximum anticipated reaction forces without deforming or failing, and must be designed to allow for adjustments as the tunneling progresses.
In addition to providing a stable platform for the TBM, the reaction frame also serves as a support structure for other equipment, such as the conveyor system that transports excavated material out of the tunnel. It is therefore a critical component of any tunneling operation, and must be designed and installed with care and precision.
This is critical application to design anchors, however this is temporary application. Provide us with reaction loads on the frame and get approved solution to save cost.
Conclusion: We need to look around for various anchor solutions, which will save costing of anchors and provide safe design of anchors installed to fix reaction frame.
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