ME home
 
  SME FaceBook SME Twitter SME LinkedIn RSS Feed

Subscriber or
SME Member Log On

WEB-ONLY CONTENT

Go to SME eNEWS

MINING INDUSTRY EVENTS

Al Azhar’s 14th International Conference on: Engin  - Conference
Dec 12, 2017 - Dec 14, 2017
WM2E 2017 Energy Tech Expo  - Exhibit
Dec 14, 2017 - Dec 16, 2017
George Fox Conference  - Conference
Jan 24, 2018
2018 SME Annual Conference & Expo  - Conference
Feb 25, 2018 - Feb 28, 2018

METAL PRICES


Au
Ag
Pt
Pd
Ni
Cu
Al
Pb

AGGREGATES
AND MINERALS
MARKETPLACE


http://aggregatesmineralsmarketplace.com
The Mining Engineering, SME and NSSGA
Online Buyers Directory Site
The Online Global Mining and Minerals Library Site
March 2017
Volume 69    Issue 3

Observed loading behavior during cross passage construction at the Brisbane Airport link project

Mining Engineering, 2017, Vol. 69, No. 3, pp. 15-15
Kuyt, John; Mooney, Michael; Mangione, Michele; Li, Zili


PREVIEW:

Twin bored tunnels are commonly used for a variety of road and tunnel projects throughout the world.

A major component of these twin tunnel projects is the construction of connecting cross passages that provide emergency access between tunnels and space for tunnel service equipment. Cross passages can present significant geotechnical risk and technical challenges to a project – support systems must be considered for redistributing loads around the mainline tunnel openings and supporting new loading resulting from excavation activities. Additionally, cross passages pose risks to construction schedule and cost because of their sequencing at the end of construction, so mitigation of schedule overruns can be critical. By observing field instrumentation data records from completed projects, a better understanding of the force development in each temporary structure can be achieved with indication of which structures are the most critical to support ground loads. 



Please login to access this article.

OR

If you are not an SME member, you can join SME by clicking the button below.