AASHTO Technical Manual for Design and Construction Road Tunnels
AASHTO Technical Manual for Design and Construction Road Tunnels Civil Elements First Edition Single User Digital Publication, These AASHTO Technical Manual for Design and Construction Road Tunnels Civil Elements guidelines provide recommendations for planning, design, construction, and structural rehabilitation and repair of the civil elements of road tunnels, including cut-and-cover tunnels, mined and bored tunnels, immersed tunnels, and jacked box tunnels.
Table of Content AASHTO Technical Manual for Design and Construction Road Tunnels Civil Elements
Chapter 1 is an introductory chapter and provides a general overview of the planning process of a road tunnel project including alternative route study, tunnel type study, operation and financial planning, and risk analysis and management.
Chapter 2 provides the geometrical requirements and recommendations of new road tunnels including horizontal and vertical alignments and tunnel cross section requirements. AASHTO Technical Manual for Design and Construction Road Tunnels Civil Elements
Chapter 3 covers the geotechnical investigative techniques and parameters required for planning, design, and construction of road tunnels. In addition to subsurface investigations, this chapter also addresses in brief information study; survey; site reconnaissance, geologic mapping, instrumentation, and other investigations made during and after construction.
Chapter 4 discusses the common types of geotechnical reports required for planning, design, and construction of road tunnels including Geotechnical Data Report (GDR)
Chapter 5 presents the construction methodology and excavation support systems for cut-and-cover road tunnels, describes the structural design in accordance with the AASHTO LRFD Bridge Design Specifications, and discusses various other design issues.
Chapters 6 through 10 present design recommendations and requirements for mined and bored road tunnels.
Chapters 6 and 7 present mined/bored tunneling issues in rock and soft ground, respectively. They present various excavation methods and temporary support elements and focus on the selection of temporary support of excavation and input for permanent lining design. AASHTO Technical Manual for Design and Construction Road Tunnels Civil Elements
Chapter 8 addresses the investigation, design, construction, and instrumentation concerns and issues for mining and boring in difficult ground conditions including mixed face tunneling; high groundwater pressure and inflow; unstable ground such as running sands, sensitive clays, faults, shear zones, etc.; squeezing ground; swelling ground; and gassy ground.
Chapter 9 introduces the history, principles, and recent development of mined tunneling using Sequential Excavation Method (SEM), also commonly known as the New Austrian Tunneling Method (NATM). This chapter focuses on the analysis, design, and construction issues for SEM tunneling. AASHTO Technical Manual for Design and Construction Road Tunnels Civil Elements
Chapter 10 discusses permanent lining structural design and detailing for mined and bored tunnels based on LRFD methodology, and presents overall processes for design and construction of permanent tunnel lining.
Chapter 11 discusses immersed tunnel design and construction. It identifies various immersed tunnel types and their construction techniques.
Chapter 12 presents jacked box tunneling, a unique tunneling method for constructing shallow rectangular road tunnels beneath critical facilities such as operating railways, major highways, and airport runways without disruption of the services provided by these surface facilities or having to relocate them temporarily to accommodate open excavations for cut-and-cover construction. AASHTO Technical Manual for Design and Construction Road Tunnels Civil Elements
Chapter 13 provides the general procedure for seismic design and analysis of tunnel structures, which are based primarily on the ground deformation approach (as opposed to the inertial force approach); i.e., the structures should be designed to accommodate the deformations imposed by the ground.
Chapter 14 discusses tunnel construction engineering issues, i.e., the engineering that must go into a road tunnel project to make it constructible.
Chapter 15 presents the typical geotechnical and structural instrumentation for monitoring
Chapter 16, the last chapter, focuses on the identification, characterization, and rehabilitation of structural defects in a tunnel system
Item Code : AASHTO DCRT-1-UL
Item Pages : 662 Pages
Download Type : PDF File, AASHTO Technical Manual for Design and Construction of Road Tunnels Civil Elements