Cliff Brady, City of Calgary, and
Wing Chan, Hammerhead
This paper discusses the current state of the
Calgary Alberta’s sewers, and the application of pipe bursting
techniques to replace sewers in challenging residential and
in public places. This paper further highlights the efficiency,
cost effectiveness, social impact (or lack of) of using the
pipe bursting process, its limitations, lessons learned and
steps taken to ensure future applications of this trenchless
pipe line replacement process serves the public.
This paper discusses the City of West Jordan,
Utah's decision to use pipe bursting to upsize from an existing
10-inch concrete pipe to 18-inch HDPE. The paper notes that
bursting allowed the contractor to avoid lane closures, right-of-way
constraints, and impacts to communication lines as well as
intermediate and high-pressure gas lines. Additional
benefits included construction during winter conditions, an
expedited construction schedule, and cost efficient bid prices.
Ben Dias, Jenn Veenstra, and Ken
Nguyen, City of Vancouver
This paper presents the City of Vancouver's use
of a double bursting head consisting of a cutting edge and
a pneumatic tool to help burst through the heavily rooted soil.
The tool itself housed a 6 inch high density polyethylene (HDPE)
pipe with a 5 1/8 inch burst tool inside it on which a second
four inch pipe was piggybacked. Low strength concrete was used
to backfill and eliminate any existing voids.
Collins Orton, TT Technologies, and
Kent Von Aspern, P.E., Carollo Engineers
This paper discusses the City of South San Francisco
project to pipe burst an existing VCP gravity sewer and replace
with HDPE pipe. Many components combined to make this project
extremely challenging. An abbreviated list includes: significant
upsize, large diameter host pipe, geology with high groundwater
conditions and aggressive soil, traffic concerns, significant
truck traffic at all hours, large amount of host pipe debris.
Monday, April 16th - PM
Track 4
Laterals
- Team Leader: George Kurz, Moderator: Lysa Voight
This paper describes how the implementation of
Trenchless Technology in the City of Victoria has saved the
taxpayers valuable dollars. City crews have shown that Trenchless
Technology is the wave of the future for Victoria.
Mark Wade, and G Alan Johnson, Wade & Associates,
Inc.
This paper describes critical issues considered
in the design of a trunk sewer and the efforts to mitigate
potential risks that characterized the project area.
Joe Dvorak, Department of Bureau
of Environmental Services, City of Portland, Portland, and
Larry Kiest, Jr., LMK Enterprises, Inc.
This paper discusses how the City of Portland
has successfully attained a wealth of experience and knowledge
through years of training and technology transfer. This experience
and approach has allowed the city’s crews to perform sewer
repairs in a matter of hours that in some cases would normally
consume weeks of heavy construction with serious disruption
to the public at extreme cost.
Tuesday, April 17th - AM (1st Session)
Track 4
Pipe Replacement -
Team Leader: Jennifer Glynn, Moderator: Ernie Ting
S. Wayne Miles & Christine M. Nesbit, CDM,
and Frank C. Styers, City of Wilmington NC
This paper presents a method for setting pipeline rehabilitation
priorities and demonstrates the successful application of this method in
a politically-charged and high profile environment.
Paul W. Amico, P.E., Armstrong and Associates,
Inc., and Michael Hendricks, City of Noblesville Wastewater Utility
This paper presents the results of a two-phase expansion
of the City of Noblesville, Indiana's water treatment plant that required
increasing the conveyance capacity of it's main combined interceptor sewer
by pipe bursting 1,300 LF of brick interceptor and rehabilitating 1,000
LF of brick sewer using CIPP.
Jasmine Cuffee, P.E., Harris & Associates,
and Danea Gemmel, P.E., City of Concord
This paper demonstrates the importance of electronic underground
utility locating and potholing, as well as the differences between Pipe
Bursting and the relatively new Pipe Reaming method.
This paper highlights the conditions of existing water distribution
mains in major Chinese Cites and the application and challenges of applying
pipe bursting techniques to replace aging and leaking pipelines for potable
water distribution.
This paper examines the benefit of pipe ramming for installing
casings under roads and rail lines. A case study involving repair of culverts
under the Union Pacific Railroad ROW illustrates the application of pipe
ramming in these situations.
Tuesday, April 17th - AM (2nd Session)
Track 4
Contracting
- Team Leader: Ken Chua, Moderator: Ken Chua
Time
Paper Title
Authors
Description
10:20 AM
Design-Build Sewer Renovation Case Study
Stan Kotowski, P.Eng, Tom Bragiel,
and Barbara Sztylka, Louis Berger, S.A.S
This paper uses a sewer renovation project in
Stettin, Poland as a case study to highlight the challenges
of implementing “Design-Built” in international projects. The
role of the Engineer, and the overall project management in
the project are discussed.
Joseph S. Kowalczyk, P.E., DEE and
Thomas Morgan, P.E., DEE, Camp Dresser and McKee; and John
D. Petinelli, P.E., Town of Whitman MA
This paper offers a direct comparison of design/build
to traditional procurement for equivalent sewer pipe rehabilitation
projects undertaken by Whitman MA in 2004 and 2006, demonstrating
design/build as the preferred project delivery method.
This paper describes how a major City moved to
a partnership arrangement with private companies to line sewer
laterals. The paper shows how such a partnership can work for
other Cities. It discusses the hurdles the City had to go through
(qualifying contractors, dealing with City labor unions) and
how a open cut culture was changed.
This paper describes a case study of a water
transmission main rehabilitation that first required the rehabilitation
of a brick sewer interceptor directly beneath it, requiring
sliplining above and CIP lining below.
Qumar Khan, City of Concord California;
Jacqueline Jaques, CPT Technologies; and Mick Fuller, Re-Pipe
This paper discusses the process the City of
Concord underwent to evaluate various pipeline rehabilitation
technologies including CIPP, dig and replace and Rib Loc Expanda
Pipe. Key issues considered were the cost of materials, installation
and constructability issues, by-pass pumping, traffic issues
and street repairs.
4:45 PM
Temporary Diversion Systems
Michael J. Delzingaro, Godwin Pumps
of America, Inc.
This paper presents an overview of the required
data collection and planning necessary to implement a reliable
temporary diversion system.
Majid Tavakoli, Thompson Pump & Manufacturing
Co., Inc.
This paper discusses the efficient and effective
methods of wellpoint dewatering for the construction of below
ground structures. Wellpoint dewatering system components,
design and installation methods are also explained.
Wednesday, April 18th - AM
Track 4
Large Diameter
Tunneling - Team Leader: Alan Atalah, Moderator: Mark
Braun
Time
Paper Title
Authors
Description
8:00 AM
Tunneling Through Glacial Till with an EPBM
Gill Garcia, GilCo. Group, Inc.; and
Dan Liotti, and Joe Butor, Midwest Mole, Inc.
This paper describes successful contractual practices,
mechanical design, construction activities including “real-time”
data acquisition for the entire tunneling and miscellaneous support
operations.
Jon Kaneshiro, Parsons Corporation;
Jernigan, Russel Brierley Associates; Lewis Yates, Fugro Consultants;
and Steve Evans, and Mike Boyle, Austin Clean Water Program/City
of Austin
This paper discusses a major underground project
for downtown Austin and discusses the alignment selection process
and the alignment selected to carry through for design and construction. The
paper will be of interest to planners, designers, and contractors.
This paper discusses recently employed methods using
small diameter man-entry shielded tunnel boring machines ranging
from 48" to 72" (1.2m to ~2m) to excavate medium to
hard rock with unconfined compression strengths greater than 50
MPa.
