This book focuses on some technical problems encountered in shield tunneling in hardsoft uneven stratum and extremely soft stratum, based on the recent shield tunneling engineering practice, and summarizes the achievements of shield tunneling in view of the technical problems from an overall and objective perspective. There are 6 chapters in this book. Chapter 1 introduces the development trend of shield tunneling method, defines classification of various stratum where shield tunneling applies, and mainly analyses the selection of shield machines and the configuration of cutters. Chapters 2 to 5 elaborates the strata characteristics and construction difficulties under various stratum conditions, puts forward adaptive selection and design keys of shield in various stratum, and emphatically analyses and summarizes the stability control technologies of shield tunnel face and driving control technology by case studies. Chapter 6 introduces the shield chamber opening technologies under hyperbaric condition, emphatically presents the basic requirements and operational preparations for the shield chamber opening, and puts forward innovative ideas of operation procedures, control points of key procedures, and safety requirements of shield chamber opening under hyperbaric condition.

Delineates the treatment technology of soft and hard uneven stratum of shield tunneling and soft stratum of underwater tunnel Represents the latest theory and practice of tunnel and underground engineering in soft and hard uneven strata Provides real-life case studies and technical methods for researchers, students, and engineers

Autorentext

Dr. Kairong Hong, professor of engineering, is the general engineer of China Railway Tunnel Group Co., Ltd. and the director of China's State Key Laboratory of Shield Machine and Boring Technology, named the "Top-notch Young Talent of Science and Technology" and "Outstanding Mid-Aged Expert" of China Railway Engineering Corporation, and "Leading Talents of the National High-level Talents Special Support Program (Ten Thousand Talents). He is entitled to the Special Allowance from the State Council. He has been devoting himself to tunneling and underground space technologies, especially to shield tunneling technologies for years, majoring on shield equipment and shield tunneling. He has won the 7th Jeme Tien Yow Railway Science and Technology Youth Award, the 9th Jeme Tien Yow Achievement Award, 1 first prize and 2 second prizes of National Science and Technology Progress Award, as well as 1 grand prize and 4 first prizes of Provincial/Ministerial Science and Technology Progress Award. He published 4 monographs as the first author and 36 professional papers, patented for 26 invention and 15 national and provincial/ministerial construction methods.

Inhalt

Strata Classification and Equipment Selection.- Shield Treatment Technology in Upper Soft and Lower Hard Composite Strata.- Shield Tunneling Treatment Technology in Boulder Stratum .- Shield treatment technology for large-size pebble stratum.- Shield treatment technology in extremely soft stratum.- Warehouse opening under pressure technology of shield. <p