The North American Society for Trenchless Technology will present HDD: Calculations & Advanced Design Good Practices, a specialized five-hour virtual training session scheduled for April 23, from 11 a.m. to 4 p.m. Eastern Time.
This course is based on advanced modules from the 5th Edition of NASTT’s HDD Good Practices Guidelines and is specifically tailored for industry professionals who already possess a fundamental understanding of horizontal directional drilling construction and wish to master complex design challenges.
The session provides an in-depth exploration of advanced design considerations essential for successful HDD projects. Participants will engage in a detailed look at geotechnical conditions and the potential risks related to various ground conditions, alongside a discussion of contract document considerations. The course also includes an extensive technical focus on the calculations required to assess and mitigate risks when designing HDD crossing geometries.
Key topics include hydrofracture risk analysis, pull-back and pipe stress calculations for various pipe materials, and settlement risk evaluations. These specific calculations are often mandatory for securing permits from departments of transportation, railroad owners, environmental agencies and flood control agencies.
The course will be led by two experts from Bennett Trenchless Engineers. Mary Neher, P.E., is a senior project engineer with a master’s degree in geotechnical engineering from UC Davis who has advanced the state of design practice in HDD hydrofracture risk evaluation. Joining her is Matthew Wallin, P.E., a principal partner and senior project manager with over 25 years of experience in trenchless design and construction management across North America. Both instructors bring extensive field and design experience to this high-level technical forum.
Registration for the webinar is available at a discounted member rate of $250 and a non-member rate of $300. The fee includes attendance, course handouts and a Continuing Education Unit certificate issued by Louisiana Tech University. While a digital training manual will be provided to all attendees prior to the session, please note that this five-hour course does not include a physical copy of the HDD Good Practices Guidelines, 5th Edition.
