Underground Construction - July 2018 - 36
Major Bursting Upsize a Success in Canada
of pull force at 250 bars, with a
maximum pull of 315 tons.
According to Mike Schwager, TT Technologies pipe
bursting specialist, an upsize
of this nature requires careful
consideration. "Upsizing to
these levels requires a lot of
planning. You need to look
closely at soil conditions, peripheral utilities, as well as
surface conditions and obstacles," said Schwager. "The job
was really a progression, as
PW Trenchless had completed
several successful upsizes with
several different sized bursting units in the years leading
up to this project. This one,
however, would necessitate
much larger static bursting
equipment than the preceding
projects."
While pneumatic pipe
bursting paved the way for
the trenchless method in the
North America in the 1990s,
static pipe bursting has made
significant gains over the last
10 years, becoming as popular
as its pneumatic counterpart.
For the of Maple Ridge
project, static pipe bursting
was the correct solution for
the types of soil conditions
encountered in that region of
Canada.
A survey revealed that
the first 15 feet contained
well-graded, fill-sand and
some gravel with occasional cobbles, but was primarily
dry. In the next 15 to 20 feet,
the was medium to coarse fillsand, some rounded gravel
and occasional cobbles. The
existing pipe depth ranged
between 9 and 20 feet deep
and with minimal (0.02 to 0.1
percent) grade.
Wet precautions
The western end of the project
was close to Kanaka Creek. A
large amount of rain in the
spring season had raised the
water level significantly where
36
JULY 2018 | UConOnline.com
Top: The bursting of the existing PVC sewer was done for capacity reasons in the fast-growing area near Vancouver. A special
expander configuration was used to facilitate the significant upsizes.; Bottom: Crews used a static pipe bursting system to
accomplish the upsizing.
http://www.UConOnline.com
Underground Construction - July 2018
Table of Contents for the Digital Edition of Underground Construction - July 2018
Underground Construction - July 2018
Editor’s Log
Newsline
Washington Watch
Pipeline Projects
Utility & Communications Construction Update
Staff Changes, New Initiatives Highlight Busy Year for TTC
DCA/AGA Conduct 5th Annual Workshop; Panels Highlight Wide Range of Topics
TTC Works With Advancing Pipeline Condition Assessment Using Drones
CIPL Project Sets World Record
Nuclear CIPP
Major Bursting Upsize a success in Canada
Rehab Technology News
Rehab Technology Selection Guide
Business
New Products
Business Cards
Sales Reps
Events
Ad Index
Underground Construction - July 2018 - Underground Construction - July 2018
Underground Construction - July 2018 - IFC
Underground Construction - July 2018 - 1
Underground Construction - July 2018 - Editor’s Log
Underground Construction - July 2018 - 3
Underground Construction - July 2018 - Newsline
Underground Construction - July 2018 - 5
Underground Construction - July 2018 - Washington Watch
Underground Construction - July 2018 - 7
Underground Construction - July 2018 - Pipeline Projects
Underground Construction - July 2018 - 9
Underground Construction - July 2018 - Utility & Communications Construction Update
Underground Construction - July 2018 - 11
Underground Construction - July 2018 - 12
Underground Construction - July 2018 - 13
Underground Construction - July 2018 - Staff Changes, New Initiatives Highlight Busy Year for TTC
Underground Construction - July 2018 - 15
Underground Construction - July 2018 - 16
Underground Construction - July 2018 - 17
Underground Construction - July 2018 - 18
Underground Construction - July 2018 - 19
Underground Construction - July 2018 - DCA/AGA Conduct 5th Annual Workshop; Panels Highlight Wide Range of Topics
Underground Construction - July 2018 - 21
Underground Construction - July 2018 - 22
Underground Construction - July 2018 - 23
Underground Construction - July 2018 - TTC Works With Advancing Pipeline Condition Assessment Using Drones
Underground Construction - July 2018 - 25
Underground Construction - July 2018 - CIPL Project Sets World Record
Underground Construction - July 2018 - 27
Underground Construction - July 2018 - 28
Underground Construction - July 2018 - 29
Underground Construction - July 2018 - 30
Underground Construction - July 2018 - 31
Underground Construction - July 2018 - Nuclear CIPP
Underground Construction - July 2018 - 33
Underground Construction - July 2018 - 34
Underground Construction - July 2018 - Major Bursting Upsize a success in Canada
Underground Construction - July 2018 - 36
Underground Construction - July 2018 - 37
Underground Construction - July 2018 - Rehab Technology News
Underground Construction - July 2018 - Rehab Technology Selection Guide
Underground Construction - July 2018 - 40
Underground Construction - July 2018 - 41
Underground Construction - July 2018 - 42
Underground Construction - July 2018 - Business
Underground Construction - July 2018 - 44
Underground Construction - July 2018 - 45
Underground Construction - July 2018 - New Products
Underground Construction - July 2018 - 47
Underground Construction - July 2018 - 48
Underground Construction - July 2018 - 49
Underground Construction - July 2018 - 50
Underground Construction - July 2018 - Business Cards
Underground Construction - July 2018 - 52
Underground Construction - July 2018 - 53
Underground Construction - July 2018 - Ad Index
Underground Construction - July 2018 - 55
Underground Construction - July 2018 - 56
Underground Construction - July 2018 - IBC
Underground Construction - July 2018 - BC
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