Shield Tunnel Cutter Replacement Technology

This book proposes the tool change methods for the excessive tool wear in the construction rules of shield tunnel construction in China. From the perspective of shield tunneling, atmospheric pressure tool change, pressure opening and tool change, and other special techniques, the tool change technologies are proposed. It highlights a number of tool-changing techniques and research and development work, including pressure-changing tools, tool-changing tools in the tool-cylinder arm, and cutter-tooth cutter inter-change since the beginning of the construction of the Nanjing Yangtze River Tunnel.

Introduction.- Cutting, Wear and Replacement of Cutting Tools During Shield Tunneling.- Conventional Cutterhead & Tool-Changing Under Normal Pressure Technology.- Normal Pressure Tool Change Technology Based on Basic Pressure and Changeable Knife Design.- Stabilization Technology and Tool Change Technology for Open Face with Pressure Open.- Other Special Tool Changing Techniques.

Jian Chen, professor-level senior engineer, Ph.D. at Ocean University of China. Deputy Chief Engineer and Chief Expert of China Railway 14th Bureau Group, a well-known domestic large shield expert, mainly engaged in technical management and scientific research of the large shield cross-river tunnel project. He was awarded the honorary title of "China Civil Engineering Zhan Tianyou Innovation Collective", "Mao Yisheng Railway Engineer", "Shandong Province Excellent Inventor", "Jiangsu Province Top Ten Staff Operation Law" and "Shandong Excellent Young Intellectuals". Successfully completed the construction of large-scale underwater tunnels such as the Nanjing Yangtze River Tunnel, the Yangzhou Slender West Lake Tunnel, and the Wuhan Metro Line 8 Cross-river Tunnel. The scientific and technological achievements of the research and development have reached international advanced and domestic leading level. He received 6 provincial and ministerial-level scientific and technologicalprogress first prizes, 2 second prizes; 1 national-level construction method, 5 provincial-level construction methods; 23 national patents authorized; 1 monograph published; published core and above scientific papers 14 Article.