CATT has developed and delivered onsite training workshops and courses for a number of organizations that include City of Toronto, City of Markham, Enbridge Gas, and MMM/WSP Canada. Furthermore, we have active partnerships to develop and deliver custom training programs and courses with the Ontario Good Roads Association (OGRA) and Fleming College. CATT has actively participated in developing and delivering workshops at the American Water Works Association (AWWA) and Canadian Geotechnical Society events. CATT provides certificates of attendance/completion and CEUs (continuing educations units). Some of the CATT courses have been approved by the Manager of Certification, Ontario Ministry of Environment and Climate Change, for Director Approved Continuing Education (CE) units. For further information, please contact Alice Seviora, Alice.Seviora@uwaterloo.ca (Tel: 519 888 4770).

For selected course descriptions, please follow the links below.

Introduction to Trenchless Technologies

Geotechnical Investigations and Considerations for Successful Trenchless Projects

Manhole Assessment and Rehabilitation

Underground Utility Location and SUE (Subsurface Utility Engineering) Investigations

Introduction to Trenchless Technologies

Course Description

Trenchless technologies include tools and techniques that involve minimal surface excavation for the installation and renewal of underground pipelines and utilities. This course introduces trenchless installation and renewal of underground water and wastewater pipelines. The attendees will learn how trenchless construction is different from the traditional open-cut replacement and renewal of pipelines. The course will cover the principles, geotechnical requirements, equipment, construction process, and quality assurance and quality control procedures for pipeline replacement using horizontal directional drilling, pipe jacking, microtunnelling and pipe bursting techniques. Furthermore, trenchless rehabilitation of pipelines using spray-on Polyurethane and Polyurea liners will be covered. In particular, the attendees will learn about material properties, commercial lining technologies, and benefits and limitations of the new spray-on liners. Additionally, a review of relevant case studies will show the range of applications, advantages and limitations, and best practices for various trenchless techniques.

Course Outline

Introduction
  • An overview of trenchless technologies
  • How trenchless pipeline construction is different from the traditional open-cut construction?
Trenchless Pipelines Replacement Introduction to principles, suitability and limitations, geotechnical requirements, equipment, processes, QA/QC, and relevant case studies for trenchless pipe replacement using:

  • Horizontal Directional Drilling
  • Pipe Jacking and Microtunnelling
  • Pipe Bursting
Trenchless Renewal Cured-in-Place Pipe (CIPP) and new spray-on liners using polyurethane and polyurea, and epoxies

  • Materials properties
  • Structural vs. non-structural lining debate
  • Commercial lining technologies
  • Benefits and Limitations
  • QA/QC
  • Case studies

Learning Objectives

Upon completion of the course, the attendees will:

  • Learn the major differences between the trenchless and open-cut replacement and renewal of underground water and wastewater pipelines
  • Be able to select/specify the right trenchless technique depending on the soil properties and geotechnical information
  • Demonstrate knowledge of principles and processes, benefits and limitations, equipment, and quality control and quality assurance procedures for horizontal directional drilling, pipe jacking, microtunnelling, and pipe bursting techniques
  • Understand the key differences, suitability and limitations, definitions and properties of structural, semi-structural and non-structural liners for trenchless rehabilitation of pipelines
  • Acquire and apply knowledge of material properties, application procedures, benefits and limitations, and QA/QC requirements for spray-on Polyurea and Polyurethane products for watermains
  • Learn the best practices, through case studies, for selection and application of various trenchless rehabilitation and replacement techniques for water and wastewater pipelines

Who Should Attend?

Municipal engineers, technologists, technicians, operators, engineering consultants, contractors, suppliers, and pipe manufacturers.

What is Included?

  • Course material

Geotechnical Investigations and Considerations for Successful Trenchless Projects

Descriptions

Proper site and subsurface investigations are important pre-requisites for planning, design and construction of underground pipelines and utility conduits. This workshop by internationally renowned geotechnical and trenchless experts will discuss geotechnical considerations for feasibility, design and construction phases of underground projects. The presenters will discuss how contract specifications can be improved to avoid project delays and costly construction claims. Case studies will review geotechnical and site conditions on HDD, pipe jacking and microtunnelling, and pipe bursting projects and highlight good practices to avoid construction difficulties.

Course Outline

  • Geotechnical investigations and properties of soils and rocks
  • Comparison of geotechnical requirements for trenchless and open-cut projects
  • GBRs (Geotechnical Baseline Reports): what are GBRs and how to use them effectively?
  • Selection of appropriate trenchless technology based on subsurface investigations
  • Contract specifications to address differing site conditions and avoid costly claims
  • Contract specifications to avoid damage to subsurface utilities for trenchless construction
  • How to design appropriate drilling fluid trenchless installation of pipelines?
  • Case studies on geotechnical considerations for horizontal directional drilling projects
  • Case studies on geotechnical considerations for pipe jacking and microtunneling projects

Learning Outcomes

The participants will be able to:

  • Understand the geotechnical requirements and specifications for underground installation of pipelines
  • Differentiate between geotechnical requirements for open-cut and trenchless projects for buried pipelines and utilities
  • Understand the differences in various types of geotechnical reports
  • Recognize the advantages and limitations of various types of trenchless techniques
  • Discover in detail the role of drilling fluids, pertinent properties, and tests for trenchless replacement or installation of pipelines

Who Should Attend?

Municipal engineers, technologists, technicians, operators, engineering consultants, contractors, suppliers, and pipe manufacturers.

What is Included?

  • Course material
  • 7 CEU’s

Manhole Assessment and Rehabilitation

Course Description

This workshop presents the inspection and trenchless rehabilitation methods for maintenance holes. The workshop addresses the growing problem of manhole deterioration. Inflow and infiltration solutions have been discussed extensively for sanitary and storm sewers. However, these measures may be limited if manhole chambers are neglected. Consequently, an increasing amount of attention has been paid to the rehabilitation challenges facing sewer maintenance holes. As in other aspects of the sewer system where trenchless technologies are replacing excavation, this seminar will highlight the inspection and trenchless rehabilitation methods for maintenance holes.

Course Outline

  • Historical overview of manhole construction methods, issues/failure modes, inspection and renewal
  • Manhole inspection techniques
  • Manhole inspection and defect coding
  • An overview of bonded and non-bonded manhole renewal systems
  • Cleaning, preparation and grouting prior to application
  • Structural, infiltration and chemical resistant manhole rehabilitation using Spectrashield
  • Case study – Manhole rehabilitation using bonded system
  • SPRAYROQ protective lining system
  • Case study – Manhole rehabilitation using non-bonded system
  • Watertight manholes
  • QA/QC and specifications for manhole rehabilitation projects

Learning Objectives

After attending this workshop, the participants will have clear understanding of various components of manhole system and their failure modes. They will learn about manhole inspection techniques and assessment protocols, such as WRc and PACP. Depending on the manhole failure mode(s) and condition, the participants will be able to specify appropriate rehabilitation technique(s).

Who Should Attend?

Municipal engineers, technologists, technicians, operators, engineering consultants, contractors, suppliers, and pipe manufacturers.

What is Included?

  • Course material
  • 7 CEU’s

Underground Utility Location and SUE (Subsurface Utility Engineering) Investigations

Description

Accurate identification and marking of underground utilities is critical for successful, cost-effective, and timely completion of trenchless projects. Advancements, such as the use of Subsurface Utility Engineering (SUE), help in reducing unforeseen conflicts with existing utilities and thus reduce delays in construction schedules and project costs. This workshop provides an overview of various advancements in utility mapping technologies and standards. The attendees will learn how SUE techniques and standards can be used to mitigate risks for underground construction projects. The workshop will cover the SUE industry standards, such as CI/ASCE 38-02, CSA S250, TAC UR/UC. The case studies will demonstrate how the standards are being used to investigate and to create records for the process of construction risk mitigation. The viewpoints, needs and issues of all the stakeholder (municipal/client, contractor/service provider, and consultant) will be discussed.

Course Outline

  • The need for SUE ( Subsurface Utility Engineering)
  • Advancements in the trenchless industry
  • Use of SUE in the trenchless environment
  • Utility coordination and planning for trenchless projects
  • Planning for digs using construction records
  • Proper tender documents with SUE information – contractors’ perspective
  • Locating non-conductive utilities: impacts on costs and risk vs. reward
  • How to improve current specifications and tender documents
  • Current SUE technologies for trenchless construction
  • CSA Standard 250 and the impact of trenchless technologies on accurate as-built drawings
  • Trenchless construction and city planning: reducing risk and social costs
  • Case studies: (1) planning with SUE data; and (2) outdated design practices

Learning Objectives

The workshop participants will learn important elements and techniques of SUE (subsurface utility engineering). Depending on the project, they will be able to prepare proper tender documents and specify appropriate SUE techniques to reduce underground construction risk. They will be able to ensure that underground construction projects meet SUE standards, such as ASCE 38-02 and CSA S250 and follow best practices for mapping and managing records for underground infrastructure.

Who Should Attend?

Municipal engineers, technologists, technicians, operators, engineering consultants, contractors, suppliers, and pipe manufacturers.

What is Included?

  • Course material
  • 7 CEU’s