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Lecture 1

CIVI 231 Lecture Notes - Lecture 1: Geotechnical Investigation, Deep Structure And Surface Structure, New Austrian Tunnelling Method


Department
Civil Engin.
Course Code
CIVI 231
Professor
Samuel L I
Lecture
1

Page:
of 2
Email: m_arabz@encs.concordia.ca
Office: EV 6.218
Quizzes are held in the tutorial
Quiz 1: September 26
Project Topic Submission: October 3
Midterm: October 17
Quiz 2: October 24
Project Report & Presentation: November 7
Group Presentations start November 14
British Columbia
1)
Alberta
2)
Saskatchewan
3)
Manitoba
4)
Ontario
5)
Quebec
6)
New Brunswick
7)
Nova Scotia
8)
Newfoundland
9)
Prince Edward Island
10)
Select one Area (submitted before Oct. 3)
1.
Tunnel
i.
Dam
ii.
Bridge
iii.
Skyscraper
iv.
Mine
v.
Slope
vi.
Case Study
2.
www.rocsience.com
www.worldatlas.com
www.nrcan.gc.ca
www.usgs.gov
Suggested website
4-5 people per group
Each group has one leader
Semester Project
Significance of geology in Civil Engineering Projects
Traffic control, transportation, water transfer
Why is it constructed?
Excavated by machine/man, explosives are good for rock tunnels (we don't have in cities)
How is a tunnel constructed?
STM
Metro Tunnel
Types of tunnel
Underground Structure (Tunneling Structure)
Lab 1 - LA Section
Monday, September 12, 2016
20:24
CIVI 231 Page 1
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STM
No limitation can use any path to access from point A to B
Road Tunnel
Water transfer tunnel
Basics of every structure (type of rock, soil, etc), texture, geological maps
Geotechnical investigation
1.
Designing
2.
Construction
3.
Tunnel Construction Steps
Ground can be either Rock or Soil, once selected then you can move on to next construction steps
Rocks are made up of minerals which are part of 3 one of the rock types (igneous, sedimentary,
metamorphic)
Describe the texture of each area, which helps planning for construction
Needed for the project
Geotechnical Maps
3D geotechnical map
Air Photo
Types of map
Geotechnical Investigation
Software is used to simulate and model space for designing purposes
Designing
Tunnel is drilled in 2 different stages
NATM method ("man" method)
TBM machine is used for rocks
EPPB machine is for soil
Tunnel phase and ring building phase alternate
TBM method ("machine" method)
Two methods
If the curvature of the path is too narrow then a machine cannot be used
Generally, the machine is ideal since it is automatic, cheap
In some cases, you can use both methods to complete a project
Which method is ideal?
Construction
Surface settlement can cause damage to buildings
Damage can include tilting, cracks due to tunnel not being sound and geotechnical is inadequate
Effect of Tunneling on Surface Structure
CIVI 231 Page 2
find more resources at oneclass.com
find more resources at oneclass.com