This book is a comprehensive and objective study of the theory and construction methods of metro construction in hard rock stratum. It is based on the construction of the Qingdao metro and provides key techniques for metro construction in hard rock stratum in a systematic manner. Detailed data, accurate charts and pictures are provided to guide future metro construction in hard rock stratum in China.Divided into six chapters, Key Technologies of Metro Construction in Hard Rock Stratum covers various construction technologies in hard rock stratum including (1) drilling and blasting construction technology, (2) open-cut station construction technology, (3) subsurface excavated station construction technology, (4) grouting reinforcement technology in adverse geological section, and (5) standardized metro construction technology. It can be used as reference for design, construction, monitoring or supervision staff as well as teachers and students engaged in metro and underground construction to facilitate exchange of ideas.

This book focuses on some technical problems encountered in shield tunneling in hard–soft 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.

Tunnels and Underground Cities: Engineering and Innovation meet Archaeology, Architecture and Art. Volume 7: Long and Deep Tunnels contains the contributions presented in the eponymous Technical Session during the World Tunnel Congress 2019 (Naples, Italy, 3-9 May 2019). The use of underground space is continuing to grow, due to global urbanization, public demand for efficient transportation, and energy saving, production and distribution. The growing need for space at ground level, along with its continuous value increase and the challenges of energy saving and achieving sustainable development objectives, demand greater and better use of the underground space to ensure that it supports sustainable, resilient and more liveable cities. The contributions cover a wide range of topics, from studying tunnels in squeezing ground conditions, via case studies on the Brenner Base Tunnel, the second Gotthard Tunnel, CERN (HL-LHCand the Dubai Strategic Sewerage Tunnel, to TBM steering difficulties. The book is a valuable reference text for tunnelling specialists, owners, engineers, archaeologists, architects, artists and others involved in underground planning, design and building around the world, and for academics who are interested in underground constructions and geotechnics.

Rock Engineering in Difficult Ground Conditions - Soft Rocks and Karst contains the Proceedings of the Regional Symposium of the International Society for Rock Mechanics (ISRM), which was held 29 to 31 October 2009 in Cavtat near Dubrovnik, Croatia. It is a continuation of the successful series of regional ISRM symposia for Europe, which began in 1

The purpose of this book is to expand the knowledge and skills of civil and structural engineers and researchers and help them better understand, design, and analyze civil engineering applications. This book examines advancements in structural integrity and failure and underground construction. It offers profound insights into the mechanisms that can lead to the integrity or failure of structures and result in safe underground construction. It provides details on the fundamental principles, theories, behavior, and performance of different structural elements and underground construction. The book delves into the mechanics, design, and construction of reinforced concrete structures. It explores the design principles applied to reinforced concrete structures and considers critical structural elements like beams, slabs, columns, and foundations. It also demonstrates various advances in reinforced concrete technology, including high-performance concrete, fiber-reinforced concrete, self-compacting concrete, and the use of nanomaterials. It describes methods for the analysis and evaluation of reinforced concrete structures, non-destructive testing methods, structural health monitoring, finite element analysis, and causes of failure. In addition, the book proposes a design model for determining the flexural bearing capacity of reinforced concrete beams having reinforcement steel with reduced modulus of elasticity. Moreover, the book investigates the effects of loading rates on the mechanical properties of structural steel. It also evaluates the formation of welding defects in the process of connecting steel structures, which is inevitable, from the aspect of failure mechanics. In addition, it utilizes an equivalent shell-wire model to propose a simple accurate technique for nonlinear assessment of reinforced concrete shear walls with less computational cost. The book introduces tunnel design theory and method, support structure systems, construction technology, and equipment under complex geological conditions. Furthermore, it highlights procedures to design efficient dewatering systems considering the working conditions, stability, and impacts generated in the vicinity of construction, and to examine the state of retaining walls by using hydrogeological tools. Finally, it outlines the online monitoring and intelligent diagnosis mechanism of key equipment in the subway ventilation system.

This book introduces shield construction risks under mixed face ground condition, analyzes the shield tunneling risks, gives definitions of relevant risks and creates the theoretical system of shield tunneling technology under mixed face ground condition, that is, geology is the foundation, TBM is the key, and people (management) is the essence. The content provides numbers of targeted solutions, such as dual-mode TBM, multi-mode TBM, millisecond delay blasting for boulders, Paste HDN, auxiliary pressure balance tunneling and so on. This book can make researchers who engaged in shield tunneling to get experiences and lessons from it, so as to make the right decision during shield type selection, standardize shield tunneling, take proper action, avoid or reduce construction risks, and minimize casualties and property losses.

Shield Tunnel Engineering: From Theory to Practice is a key technique that offers one of the most important ways to build tunnels in fast, relatively safe, and ecologically friendly ways. The book presents state-of-the-art solutions for engineers working within the field of shield tunnelling technology for railways. It includes expertise from major projects in shield tunnel construction for high-speed rail, subways and other major projects. In particular, it presents a series of advances in shield muck conditioning technology, slurry treatment, backfill grouting, and environmental impact and control. In this volume, foundational knowledge is combined with the latest advances in shield tunnel engineering. Twelve chapters cover key areas including geological investigation, the types, structures and workings of shield machines, selecting a machine, shield segment design, shield tunnelling parameter control, soil conditioning for earth pressure balance (EPB) shield tunnelling, shield slurry treatment, backfill grouting, environmental impact, and problems in shield tunnel structures and their amelioration. This book presents the essential knowledge needed for shield tunnel engineering, the latest advances in the field, and practical guidance for engineers. - Presents the foundational concepts of shield tunnel engineering - Gives the latest advances in shield tunnel engineering techniques - Considers common problems in shield tunnel structures and their solutions - Lays out step-by-step guidance for engineers working with shield tunnelling - Assesses environmental impacts and their control in shield tunnel engineering

The 200 papers in this two-volume set are a selection of work by tunnel experts from Europe, Asia, and the USA, and also showcase the work of the host nation, Turkey. As the title implies, the scope of the book is enormous, covering every aspect of tunnelling from contract management to safety. The book is of special interest to researchers, scient