Recent developments in the NSW region have seen a dramatic increase in the use of Tunnel Boring Machines (TBMs) to deliver large infrastructure network projects. Silver Raven has been regularly engaged to assist in the complex and time-sensitive task of unblocking TBMs when they have become immobile using high-pressure water jetting (HPWJ).
These massive machines, vital for subterranean construction, encountered unforeseen blockages deep within the tunnel system, halting progress. Silver Raven’s team has been called in for their reputation in swift problem-solving, operational flexibility under pressure and experience in this task. We are familiar with shield and cutter head impingement, as well as other causes of TBM immobilisation.
Each instance has required on-the-spot innovation, as traditional methods of unblocking such as explosive excavation or mechanical means were too slow or otherwise inadequate for the unique circumstances, potentially causing catastrophic damage to the TBM. Silver Raven’s team of experienced engineers acted hastily, developing customised, innovative solutions utilising our years of experience and specialisation in hydro demolition. This has led to the successful unblocking of TBMs without causing damage to the machines or the tunnel structure.
The hydro demolition projects have involved deploying specially designed tools and methods tailored to the nature of the obstruction, working in confined spaces and at heights with limited within the TBMs. In several instances, Silver Raven engineers had to adapt techniques to work around unexpected variables, ensuring continuous progress on the project with minimal downtime. Other works conducted in TBMs include HPWJ to remove up to 300MPa, high-strength compounds from grout lines.
Our ability to react quickly and deliver creative solutions in a high-stakes environment demonstrated Silver Raven’s flexibility and resourcefulness. We effectively managed complex logistics while upholding the highest standards of safety and precision, showcasing Silver Raven’s ability as an industry leader in hydro demolition expertise and innovative problem-solving.
