Mechanized Tunnelling in Urban Areas: Design methodology and construction control, 1st Edition (Hardback) book cover

Mechanized Tunnelling in Urban Areas

Design methodology and construction control, 1st Edition

Edited by Vittorio Guglielmetti, Piergiorgio Grasso, Ashraf Mahtab, Shulin Xu

CRC Press

504 pages

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Description

Internationally, the mechanized excavation of tunnels has intensified in the last two decades, as the number of tunnels being constructed for subways and railway underpasses increases. The subject of mechanized tunnelling in urban areas has not previously received the attention that it deserves, despite there being specific hazards associated with the construction of tunnels in metropolitan areas, including poor ground conditions, water tables higher than the level of tunnels, and subsidence leading to damage to the existing structures on the surface. The application of technologies for achieving the stability of the tunnel and for minimizing surface settlement is described in this book. Accurate characterization of the ground; rigorous assessment and management of risk from design to maintenance; the correct choice of a tunnel boring machine and a plan for the advancement of the tunnel; specific excavation procedures and real-time monitoring of excavation parameters are all discussed in this thorough work.

Reviews

''What is the best approach to controlling a TBM and what systematic and rigorous engineering controls should be employed? This book might well provide the answer for you.''

''An excellent read and valuable additon to anyone's library of tunnel construction books''

Tunnels & Tunnelling International, April 2008

Table of Contents

Introduction: tunnels in urban areas and the related challenges

The opportunities

The particular challenges of urban tunnelling

The correct approach to success

A brief history of mechanized tunnelling

The scope of this book

Initial risks: definition, analysis and management

Basic definitions

Sources of initial risk in mechanized urban tunneling

Analysis and management of risks: the risk management plan

Designing for the identified risk scenario

Quantifying the risk of time and cost overruns at the design stage with the use of DAT

Use of Plan for Advance of Tunnel (PAT) for controlling the residual risks

Selection of tunnel alignment with low-level risks

Introduction

The general layout of an urban tunnel

Alignment constraints and specific functional requirements

Constraints and peculiar characteristics of the urban environment relevant to the selection of a tunnel route

Starting and arrival points, shield launching and receiving shafts, logistic work sites

The relationship between the excavation of running tunnel by TBM and the construction of the stations

Conclusions

The primary responses to the initial risks: a "city machine" and its essential characteristics

Principles for making the macro choices

The common solution: a "city machine"

Essential components of a "city machine"

Slurry and earth pressure balance shields: functioning principles and review of the state of the art

Some considerations for the choice between HS and EPBS

Tunnel design

Prediction and control of tunnelling-induced settlements and assessment of their impacts

The design of face-support pressure

The design of precast concrete segmental lining

Backfilling of the tail void

The control of tunnel construction

Updating and implementation of PAT

Excavation control: the case of slurry/hydro shield (SS/HS)

Excavation control: the case of earth pressure balance shield (EPBS)

Integrated real-time monitoring system

Health and safety

General considerations

TBM working environment

Critical processes

Additional critical elements

Emergencies

Case histories

EOLE project - Paris

St. Petersburg metro

Porto light metro

Turin metro line 1

SMART solution of Kuala Lumpur (Malaysia)

High speed railway line of Nodo di Bologna

References

Appendices

Appendix 1 Type and characteristics of TBMs

Appendix 2 TBM manufacturers from the new millennium

Appendix 3 Geotechnical investigations for tunnelling in urban areas

Appendix 4 Description of the principal elements of the 12 analytical methods for defining face-support pressure

Appendix 5 An example of risk management plan for a job using slurry shield

Appendix 6 Typical excavation procedures for EPB shield

Appendix 7 The Italian experiences

Annex

Contract and construction aspects

Glossary of terms

Index

Subject Categories

BISAC Subject Codes/Headings:
TEC009020
TECHNOLOGY & ENGINEERING / Civil / General
TEC009150
TECHNOLOGY & ENGINEERING / Civil / Soil & Rock