Coal Ash Closure Improvements

March 30, 2022 | Online ::

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“The speakers did a great job of relaying technical information and providing real world examples that, regardless of your background, everyone can find useful.” Senior Engineer, KPRG and Associates, Inc.

Coal ash impoundment closure is a continued challenge for operators that in most cases will continue for many years to come. These closure projects can involve extensive dewatering, soil stabilization, geostructural improvements and water treatment. This course will give attendees the critical knowledge needed shared by subject matter experts that have earned it through the closure of over 30 ash ponds.  Valuable knowledge will be gained in: the behavior and responsiveness of fly ash to drainage methods, application of geo-structural techniques in ash, water treatment methods, geotechnical investigations, geotechnical verification and monitoring, and new advances in the technologies. This course will give attendees knowledge that can be applied directly in their daily work.

Learning Outcomes

• Detail the geotechnical behaviors of ash and the differences from soil
• Review slope stabilization, stable crust and localized liquefaction and ash stabilized in place
• Describe the various methods of draining and dewatering installations
• Discuss techniques for enhancing and improving the geo-structural qualities of ash
• Review the available geo-structural methods for support of excavation and foundation support in and through ash
• Review unique applications of instrumentation and monitoring for construction safety and monitoring of site features
• Explore case studies in ash stabilization
• Review the different methods of water treatment for ponded and ash pore water
• Detail a comprehensive understanding of an integrated approach to closure

Wednesday, March 30, 2022 : Central Time

 

The Unique Geotechnical Behaviors of Fly Ash

• Geotechnical differences between soil and ash
• Field vs Laboratory testing
• Shear strength- field & laboratory measurements
• Moisture sensitivity
• Capillarity
• Vibration sensitivity

Necessary Geotechnical Behaviors for Pond Closure

• Slope stabilization 
• Providing a stable crust
• Mitigating localized liquefaction
• Ash stabilized in place

Methods of Dewatering Fly Ash

• Drainage techniques
  • Rim ditching and sumping
  • Wellpoints
  • Deep wells
  • Other drainage methods
• Selecting a drainage (dewatering) technique
• Safe access for dewatering system installation
• Geotechnical investigations and pilot tests

Geo-Structural Improvements in Fly Ash

• Design/build temporary works for pond closure
• Retained excavations in ash
• Sheet piles in ponded ash
• In-situ mixing, shallow and deep mixing techniques
• Grouting techniques
• Ground improvement for foundations through ash
• Foundations, and ground improvement for ancillary facilities
• Case studies in ash stabilization

Groundwater Barriers & Remedial Technologies for Corrective Action

• Slurry trenches
• Continuous trench soil mixed barriers
• Deep barriers constructed with panel excavation methods
• Reactive barriers
• Passive in-situ water treatment methods
• Long term pump & treat systems

Instrumentation and Monitoring

• Evaluation of geotechnical data
• Monitoring for liquefaction susceptibility
• In-cab communication systems for construction equipment
• In-situ measurements of shear strength

Water Treatment

• Ponded water
• Ash pore water
• Available treatment technologies
• Influence of pore water extraction method on water chemistry

An Integrated Approach to Closure

• Relationship between schedule, safety, quality, and cost
• Project acceleration with early dewatering and/or geostructural improvement
• Design/Build approach

• Paul Schmall, PhD, PE,  Vice President, Keller Specialty Services, Keller

• Joseph Scalia, PhD, PE, Colorado State University

• Greg Landry, PE, Chief Engineer, Dewatering & Groundwater Control, Keller

• Anthony Sak, PE, Senior Engineer, Keller

• Dale Evans, PE, Senior Director, Technology and Strategy at Remedial Construction Services

• Pierre Gouvin, President, GeoInstruments

• Ed Carter, Water Treatment Division Manager, Keller

We will be using Microsoft Teams to facilitate your participation in the upcoming event. You do not need to have an existing Teams account in order to participate in the broadcast – the course will play in your browser and you will have the option of using a microphone to speak with the room and ask questions, or type any questions in via the chat window and our on-site representative will relay your question to the instructor.

• IMPORTANT NOTE: After November 30 you will not be able to join a Teams meeting using Internet Explorer 11. Microsoft recommends downloading and installing the Teams app if possible. You may also use the Edge browser or Chrome.
• You will receive a meeting invitation will include a link to join the meeting.
• Separate meeting invitations will be sent for the morning and afternoon sessions of the course.
  • You will need to join the appropriate meeting at the appropriate time.
• If you are using a microphone, please ensure that it is muted until such time as you need to ask a question.
• The remote meeting connection will be open approximately 30 minutes before the start of the course. We encourage you to connect as early as possible in case you experience any unforeseen problems.

Please Note: This event is being conducted entirely online. All attendees will connect and attend from their computer, one connection per purchase. For details please see our FAQ

If you are unable to attend at the scheduled date and time, we make recordings available to all attendees for 7 days after the event

REGISTER NOW FOR THIS EVENT:

Coal Ash Closure Improvements

March 30, 2022 | Online

Your registration may be transferred to a member of your organization up to 24 hours in advance of the event. Cancellations must be received on or before February 24, 2022 in order to be refunded and will be subject to a US $195.00 processing fee per registrant. No refunds will be made after this date. Cancellations received after this date will create a credit of the tuition (less processing fee) good toward any other EUCI event. This credit will be good for six months from the cancellation date. In the event of non-attendance, all registration fees will be forfeited. In case of conference cancellation, EUCIs liability is limited to refund of the event registration fee only. For more information regarding administrative policies, such as complaints and refunds, please contact our offices at 303-770-8800

Credits

EUCI is accredited by the International Accreditors for Continuing Education and Training (IACET) and offers IACET CEUs for its learning events that comply with the ANSI/IACET Continuing Education and Training Standard. IACET is recognized internationally as a standard development organization and accrediting body that promotes quality of continuing education and training.

EUCI is authorized by IACET to offer 0.7 CEUs for this event.

Requirements for Successful Completion of Program

Participants must log in and be in attendance for the entirety of the event to be eligible for continuing education credit.

Instructional Methods

Case studies, PowerPoint presentations, and group discussion will be used in this event

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Upon successful completion of this event, program participants interested in receiving CPE credits will receive a certificate of completion.

Course CPE Credits: 8.5
There is no prerequisite for this Course.
Program field of study: Specialized Knowledge
Program Level: Beginner/Intermediate
Delivery Method: Group Internet Based
Advanced Preparation: None

EUCI is registered with the National Association of State Boards of Accountancy (NASBA) as a sponsor of continuing professional education on the National Registry of CPE Sponsors. State boards of accountancy have final authority on the acceptance of individual courses for CPE credit.