Dec Downey, PhD. and John Heavens, PhD., Jason
Consultants Group, and Simon Ngo, U Tech Engineering Co Ltd
This paper reviews CIPP “stand alone,” or “fully structural”
solutions¸ and identifies the key issues to be resolved. The
paper includes a review the principles and purpose of pressure pipe lining,
and the classification of structural capability in AWWA Manual M28, ASTM
F-1216 and the relevant CEN/ISO standards. The criteria used to differentiate
fully structural, semi structural and non structural capabilities is also
discussed.
This paper addresses site specific challenges inherent in
rehabilitating large diameter non circular, concrete box culverts using
the cured in place pipe methods described in ASTM F 1216, as well as ASTM
F 1743. This paper details pipe preparation requirements including,
corner grouting to allow for fully deteriorated design modeling as a large
bore non-circular case. The paper focuses on two case histories detailing
the design thru installation.
Kamran Sarrami, City of Toronto, and Mark Knight,
PhD., University of Waterloo
This paper describes the need for high quality test results
for the development of a long-term capital works program, results of a
detailed test program completed by the Centre for the Advancement of Trenchless
Technologies that include over 10,000 hours of creep testing data. The
paper also presents lessons learned and the need for third party testing.
This paper addresses potential drawbacks and benefits of
the different CIPP installation methods. The paper also identifies items
that need to be included in construction documents to minimize risks for
all parties.
This paper discusses the design theory and product features
of Insituform (CP) (a fiber-reinforced version of Insituform’s CIPP technology). It
also details industry standards testing and the application envelope for
this technology. In addition, case studies of successful applications
will be presented.
Monday,
April 16th - PM
Track 1
CIPP
Performance - Team Leader: Keith Hanks, Moderator: Keith
Hanks
Shanhai Guan, Erez Allouche, and
Mike Baumert, Trenchless Technology Center/Louisiana Tech Univ.,
and Kevin Bainbridge, City of Hamilton
This paper describes the results of studies for
evaluating the burst-pressure of a GFRP CIPP liner used in
the rehabilitation of cast-iron water distribution systems.
The relationships between the diameter and shape of the holes
in the host pipe and the liner’s 50-year burst pressure were
studies numerically and experimentally. The results from these
evaluations were compared with predictions made using the analytical
solution given in ASTM F 2207. The effect of cyclic loading
was also examined.
Robert K. Lee, P.E., Malcolm Pirnie,
Inc., and Steve Ferry, Microbac Laboratories, Inc. - Hauser
Division
This paper addresses the various ways to test
and anticipate the long-term performance of CIPP liners and
some options available to owners and engineers if test results
are not as expected.
This paper describes the steps needed to assure
a tested and verified level of quality for cured-in-place pipe
that can be done cost effectively in the field.
Tuesday, April 17th - AM (1st Session)
Track 1
Large
Diameter Sewer Rehabilitation - Team Leader: Dennis Doherty,
Moderator:
Kamran Sarrami
Alan Kam, City of San Jose, Dept.
of Public Works, and Russ Eberwein, Harris & Associates
The paper presents the results of assessment
and selection of segmental sliplining to rehabilitate a sanitary
sewer interceptor in San Jose, California. The paper outlines
the advantages and drawbacks of each option evaluated. Paper
describes the success or failure of the proposed work plan
and includes photos of the construction.
Matthew Hickey, P.E., City of Portland,
and Kim Staheli, Ph.D., P.E., Bennett/Staheli Engineers
This paper presents a case study in the use of
five trenchless technologies in an emergency wastewater pipeline
replacement project in Portland, Oregon. The paper summarizes
how trenchless technologies were the key to solving this infrastructure
puzzle.
This paper describes the important elements of
GIPL design and illustrates with design examples a sound approach
for rehabilitation of sanitary sewer systems using this class
of liners.
Robert McKim, Parsons Brinckerhoff;
John Morgan, City of Indianapolis DPW Engineering; and Steve
Nielsen, Earthtech
This paper sets out the decision making process
employed to compare the use of open-cut technology against
trenchless technologies; compares the characteristics of each
technology; and discusses the risk management system employed
to make the construction methodology decision.
Tuesday, April 17th - AM (2nd Session)
Track 1
Transmission
Main Rehabilitation - Team Leader: Michael Willmets, Moderator:
Michael Willmets
Bethany A. Williams, P.E., Brown
and Caldwell, and Brandy A. Kelso, P.E., and Aimee D. Conroy,
P.E., City of Phoenix
This paper focuses on the design and construction
techniques used by the City of Phoenix for its 2005 and 2006
programs to rehabilitate the 15-mile Val Vista Water Transmission
Main.
This paper describes the lessons learned during
an inspection of the cement mortar lining of a large diameter
transmission main with particularly difficult construction
challenges.
George Bontus, Keith Oxner, and Ian
Jones, Insituform Technologies, Inc.
This paper discusses capabilities of some of
the most significant industry-leading rehabilitation techniques
that have been refined and implemented recently in North America,
the UK, Europe and Asia.
Tuesday, April 17th - PM
Track 1
Main Line
Rehabilitation - Team Leader: George Ragula, Moderator:
George Ragula
Joseph Loiacono, Sanexen Environmental
Services Inc., and John Vose, City of Naperville
This paper presents the City of Naperville case
study of the Briergate Drive water main rehabilitation project,
a first in the United States. It explains the reasons the City
chose to rehabilitate the water main using a structural CIPP
liner, the trenchless method for service connection reinstatement,
and indicate the technical and economical advantages it provided
to the city.
Michael Brown, Amir Fam, PhD., and
Ian Moore, PhD., Queen's University
This paper investigates the material characteristics
of a composite polymer liner designed to structurally rehabilitate
water distribution conduits. Data are provided for an exhumed
liner and the individual liner components.
The paper describes the evolution of the MainSaver™.
Difficulties such as low and high temperature lining conditions,
bleed, total mortar coverage, slump, consistent tube manufacture,
installation fittings etc. have been addressed. The key technical
issues associated with this aspect of the product development
are discussed with emphasis on tube production and cement mortar
development.
Keith Oxner, P.E., Insituform Technologies¸
Inc., and Joseph Barsoom, J- Barsoom Consulting Services
This paper provides specifics of the City of
Denver lining project, including details of the lining technology
utilized. The paper also explores details of the robotic technology
used for the internal sealing and reinstatement of the service
connections.
This paper discusses the objectives of the rehabilitation
of the potable water piping system and the technologies emerging
to answer those goals. Several new trenchless rehabilitation
approaches have emerged over the last two years that are beginning
to show promise for the potable water piping system. This
paper discusses those technologies and give guidance to the
engineer and system owner as to their applications, their economics,
and their benefits.
Wednesday, April 18th - AM
Track 1
Trenchless
Rehabilitation - Team Leader: Isabel Tardif, Moderator:
Isabel Tardif
This paper identifies how the City developed it
condition assessment programs and how the large quantities of
data was collected, compiled and analyzed. Based on our
experience the primary issues will include field data to collect,
QA/QC on data, tracking field data with GIS, assessment criteria,
and program implementation.
Julie McMullin and Andy Lukas, Brown
and Caldwell, and Steve Heinz, Milwaukee Metropolitan Sewerage
District
This paper looks at the cost-effectiveness of infiltration
and inflow (I/I) rehabilitation using trenchless technology methods,
as seen from the Milwaukee Metropolitan Sewerage District’s recent
I/I Reduction Demonstration Project.
This paper discusses development of specific projects,
experiences with projects constructed to date and implications
of flow data obtained following completion of the two Ft Lauderdale
projects. Standard project specifications were developed
to encourage competition and reduce the effort required to get
projects out to bid. Construction costs have been extremely competitive,
with 3-4 bidders submitting for each project.
This paper will describe experiences with using
multiple lining methods and materials, 5 – 6 years post installation
condition investigation, methods of investigation and its findings.
