Tunnel boring, also known as Tunnel Boring Machine (TBM) construction, offers several advantages over traditional tunneling methods:

　　1. Construction Speed

　　- TBMs can achieve continuous excavation, enabling a faster construction process compared to methods like drill and blast. In stable rock conditions, TBMs can significantly reduce the overall construction time, especially for long tunnels.

　　2. Reduced Impact on Surroundings

　　- TBMs cause less vibration and noise during operation, minimizing the disturbance to nearby residents and structures. This is particularly important in urban areas or sensitive environments.

　　- The excavation process with TBMs is more precise, resulting in less overbreak or underbreak. This reduces the need for additional excavation and backfilling, minimizing the impact on the surrounding soil and rock.

　　3. Improved Safety

　　- TBMs are equipped with advanced safety features and automated systems, reducing the need for workers to be in close proximity to the excavation face. This improves the safety of the construction site.

　　- The use of TBMs also reduces the risk of rockfalls and collapses, as the excavation is more controlled and the surrounding rock is less disturbed.

　　4. High-Quality Tunneling

　　- TBMs produce a smoother tunnel surface, reducing the need for extensive lining and finishing work. This can result in cost savings and a more aesthetically pleasing tunnel.

　　- The precise control of the TBM allows for more accurate tunnel alignment and dimensions, ensuring a higher quality final product.

　　5. Environmental Benefits

　　- TBMs produce less dust and debris compared to drill and blast methods, reducing the environmental impact of the construction.

　　- The use of TBMs can also reduce the amount of spoil generated, minimizing the need for disposal and reducing the impact on the surrounding environment.

　　6. Versatility

　　- TBMs can be used in a variety of geological conditions, including hard rock, soft soil, and mixed ground. Different types of TBMs are available to adapt to specific geological challenges.

　　- TBMs can also be used for tunnels of different diameters and lengths, making them suitable for a wide range of tunneling projects.

　　7. Cost Savings

　　- Although the initial investment in TBMs can be high, the overall cost of tunneling can be reduced in the long run due to the faster construction speed and lower labor requirements.

　　- The reduced need for extensive support and lining work can also contribute to cost savings.

　　8. Automation and Monitoring

　　- TBMs are equipped with advanced monitoring and control systems, allowing for real-time monitoring of the excavation process and the condition of the TBM. This enables operators to make timely adjustments and ensure the smooth progress of the tunneling.

　　- The data collected during the tunneling process can also be used for post-construction analysis and evaluation, improving the overall quality and safety of the tunnel.

　　These advantages make tunnel boring an increasingly preferred method, especially for projects in dense urban areas or where geological conditions favor its use.