533.5R-20: Guide for Precast Concrete Tunnel Segments

Currency Display

Your Price: $ 79.50 USD

Member Price: $ 49.00 USD

Save $ 30.50 USD, Become a Member

Choose Product Language

Choose Product Units


Choose Product Format

Notes/Preview

Preview

Description

The worldwide trend in construction is toward mechanization and automation. This trend has led to continued rapid progress of mechanized tunneling. Advantages over conventional tunnel construction methods include, but are not limited to, occupational health and safety, faster advance rates, and reducing construction labor requirements. Mechanized tunneling in soft ground using tunnel boring machines is often associated with installing precast concrete segmental lining. However, very little industry-wide guidance has been provided by practice and code organizations. This document provides guidelines for precast concrete tunnel segments, including the most recent developments and practical experience, in addition to information on all aspects of design and construction. These guidelines are based on the knowledge and the experience gained on numerous precast tunnel projects in the United States, and available national and international guidelines often used as industry references.

Keywords:

design; durability; fiber; gasket; joint; lining; precast; segment; tolerance; tunnel.

 

Document Details

Author: ACI Committee 533

Pages: 80

ISBN: 9781641950978

Categories: Design, Durability, Joints, Precast Concrete

Formats: Printed Document or PDF

Table of Contents

CHAPTER 1—INTRODUCTION AND SCOPE, p. 2

1.1—Introduction, p. 2

1.2—Scope, p. 2

CHAPTER 2—NOTATION AND DEFINITIONS, p. 3

2.1—Notation, p. 3

2.2—Definitions, p. 5

CHAPTER 3—DESIGN PHILOSOPHY AND SEGMENTAL RING GEOMETRY, p. 6

3.1—Load and resistance factor design, p. 6

3.2—Governing load cases and load factors, p. 6

3.3—Design approach, p. 6

3.4—Segmental ring geometry and systems, p. 7

CHAPTER 4—DESIGN FOR PRODUCTION AND TRANSIENT STAGES, p. 12

CHAPTER 5—DESIGN FOR CONSTRUCTION STAGES, p. 14

5.1—Tunnel boring machine thrust jack forces, p. 15

5.2—Tail skin back grouting pressure, p. 19

5.3—Localized back grouting (secondary grouting) pressure, p. 20

5.4—TBM backup load, p. 20

CHAPTER 6—DESIGN FOR FINAL SERVICE STAGEs, p. 21

6.1—Earth pressure, groundwater, and surcharge loads, p. 22

6.2—Longitudinal joint bursting load, p. 27

6.3—Loads induced due to additional distortion, p. 28

6.4—Other loads, p. 29

CHAPTER 7—DETAILED DESIGN CONSIDERATIONS, p. 32

7.1—Concrete strength and reinforcement, p. 32

7.2—Concrete cover, p. 34

7.3—Curing, p. 34

7.4—Reinforcement spacing, p. 34

7.5—Fiber reinforcement, p. 35

CHAPTER 8—TESTS AND PERFORMANCE EVALUATION, p. 37

CHAPTER 9—DESIGN FOR SERVICEABILITY LIMIT STATE, p. 38

9.1—Verification for SLS in tunnel segments, p. 38

9.2—Stress verification, p. 38

9.3—Deformation verification, p. 38

9.4—Cracking verification, p. 39

CHAPTER 10—DESIGN OF SEGMENT GASKET, p. 40

10.1—Gasket materials, p. 40

10.2—Water pressure and gasket design, p. 41

10.3—Gasket relaxation and factor of safety, p. 42

10.4—Tolerances and design for required gap/offset, p. 42

10.5—Gasket load-deflection, p. 44

10.6—Gasket groove design, p. 44

10.7—New development in gasket systems, p. 45

CHAPTER 11—CONNECTION DEVICES AND FASTENING SYSTEMS, p. 47

11.1—Bolts, dowels, and guiding rods, p. 47

11.2—Design of connection device for gasket pressure, p. 47

11.3—Latest developments in joint connection systems, p. 48

11.4—Fastening systems to segments, p. 48

CHAPTER 12—TOLERANCES, MEASUREMENT, AND DIMENSIONAL CONTROL, p. 51

12.1—Production tolerances, p. 51

12.2—Measurement and dimensional control, p. 52

12.3—Test ring and dimensional control frequency, p. 56

12.4—Construction tolerances, p. 59

CHAPTER 13—REPAIR OF DEFECTS, p. 60

CHAPTER 14—DURABILITY, p. 60

14.1—Conventional degradation mechanisms in tunnel linings, p. 60

14.2—Stray current corrosion in segmental tunnel linings, p. 66

14.3—Mitigation methods for stray current corrosion, p. 67

14.4—Durability under coupling multi-degradation factors, p. 70

14.5—Prescriptive-based approaches, p. 73

CHAPTER 15—REFERENCES, p. 76

Authored documents, p. 77

ERRATA INFO

Any applicable errata are included with individual documents at the time of purchase. Errata are not included for collections or sets of documents such as the ACI Collection. For a listing of and access to all product errata, visit the Errata page.

Return/Exchange Policy

Printed / Hard Copy Products: The full and complete returned product will be accepted if returned within 60 days of receipt and in salable condition. A 20% service charge applies. Return shipping fees are the customer’s responsibility.

Electronic /Downloaded Products & Online Learning Courses: These items are not eligible for return.

Subscriptions These items are not eligible for return.

Exchanges: Contact ACI’s Customer Services Department for options (+1.248.848.3800 – ACICustomerService@concrete.org).

Please enter this 5 digit unlock code on the web page.