The shield tunneling technique is being used very widely, particularly in China, which is building urban-rail transit systems at an unparalleled scale and speed. The use of tunneling-shields provides a fast, relatively-safe, and ecologically-friendly method for the construction of tunnels. However, a number of incidents have shown the risks involved in tunnelling through geologically complex areas.
- Gives the principles and practice of shield construction techniques, including shield selection and operation
- Demonstrates the latest technologies in shield construction that can be applied in practice
- Reflects on the technical risks and challenges of shield construction, based on extensive use of the technique for tunnel construction in China
- Discusses challenges in construction in gravel, soft-soil, composite and rock strata
- Provides engineers with applicable insights into shield equipment and construction techniques
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