This book is a compilation of selected papers from the 2021 China-Europe International Conference on Pipelines and Trenchless Technology. The international academic conference is organized to

. further promote the cause of trenchless works in China

. ensure the quality of engineering construction

. introduce advanced technology, equipment, and materials

. promote the exchange and learning of trenchless technology

. enhance the level of trenchless technology in China

. improve the international influence of trenchless academics in China

. promote the standardization and localization of trenchless technology in China

. and lead the healthy development of the industry.