Search results with tag "Tunnel lining"
ENGINEERING GROUP CIVIL DESIGN CRITERIA FOR ROAD …
www.lta.gov.sg7.6 PERMANENT TUNNEL LININGS REQUIREMENTS 7.6.1 Cast In-situ & Segmental Permanent Tunnel Liningsl 7.6.2 Additional Requirements for Segmental Linings 7.7 TEMPORARY TUNNEL LININGS REQUIREMENTS 7.8 SPRAYED CONCRETE LININGS (SCL) 7.9 SUPPORT SYSTEM IN ROCK 7.10 DETAILING 7.10.1 Fixings 7.10.2 Taper Rings 7.10.3 …
Mechanised Shield Tunnelling - Wiley-VCH
application.wiley-vch.de120 6 The tunnel lining a) b) Figure 6-2 Construction principle of watertight and drained tunnel linings a) Botlek Tunnel, internal diameter 8.65 m, single-layer, pressure-resistant b) Murgenthal Tunnel, internal diameter 10.64 m, double-layer, drained
3 Tunnelling 1. Introduction 2. Type of Tunnels Classified ...
tycnw01.vtc.edu.hk3/24 4. Tunnel lining materials Permanent linings are required in most tunnels, always in soft ground and frequently in rock. They are required for two purposes: structurally to retain the
ACI 224.3R-95 Joints in Concrete Construction
lauwtjunnji.weebly.comChapter 7—Tunnels, canal linings, and pipes, p. 224.3R-29. 7.1—Introduction 7.2—Concrete tunnel linings 7.3—Concrete canal linings 7.4—Concrete pipe. Chapter 8—Walls, p. 224.3R-32. 8.1—Introduction 8.2—Types of joints in concrete walls 8.3—Contraction joints 8.4—Isolation or expansion joints 8.5—Construction joints
International Conference on Operational Safety of General ...
www.kgm.gov.tr22.10.2009 6 Passive Fire Protection Structural components of a tunnel as: •mineral boards or plasters •fire resistant concrete tunnel lining •enlarged concrete cover and additional reinforcement layer •special perforated steel sheet Advantages: •no operational maintenance •no failings Fire protection of tunnel lining
Chapter 2 Types of Shotcrete and Applications Corps of ...
www.engr.psu.eduare for tunnel linings, surface coatings on rock and soil, slopes, structures, embankments, or other structures that may be subject to high deformations or where crack control is needed. 2-5. Silica-Fume Shotcrete a. Silica fume is a very fine noncrystalline pozzolanic material composed mostly of silica. Silica
207.1R-05 Guide to Mass Concrete
dl.mycivil.irthick walls, and tunnel linings. High compressive strengths are usually not required in mass concrete structures; however, thin arch dams are exceptions. Massive structures, such as gravity dams, resist loads primarily by their shape and mass, and only secondarily by their strength. Of more importance are durability and properties connected
ITA-Working Group Research - Ota Eng
www.ota-eng.comPreface These guidelines present the basic concepts of shield tunnel lining and do not supersede relevant specifications of each country or each project.