Get the basic and advanced skills to support excavation projects including the best practices for the construction and installation of Secant Pile Walls and Scurry Walls. This online course is an excellent opportunity to sharpen your skills for designing, managing and constructing successful excavation projects. The media rich content includes photos and videos of major excavation projects, many associated with the post 9/11 reconstruction of lower Manhattan, and is presented by a recognized construction industry expert, Irwin Weinbaum. H.R.3684 - Infrastructure Investment and Jobs Act 11/15/21 The Bipartisan Infrastructure Act will rebuild America’s roads, bridges and rails, expand access to clean drinking water, ensure every American has access to high-speed internet, tackle the climate crisis, advance environmental justice, and invest in communities that have too often been left behind. Now that funds are available, the challenge is to develop the workforce necessary to successfully execute this ambitious program. We have compiled eighteen one-hour classes focused on the basic means and methods of constructing Infrastructure Projects. The media rich content demonstrates   construction details common to a wide variety of projects and will be invaluable to designers, builders and owners and help to insure successful outcomes.

Learning Objectives

1. 1. Support of Excavation Basics – Part 1
      • Role of support of excavation (SOE) and its impact on the design of the structure
      • 29 CFR - Review of requirements with emphasis on soil characteristics and live loads
      • Impact of existing utilities on each of the support of excavation techniques
      • Trench box
      • Timber Sheeting
      • Soldier pile and lagging
      • Steel sheet piling
   2. Support of Excavation Basics – Part 2
      • Review special requirements for driving steel sheet piling
      • Video showing the installation of steel sheet piling using a vibratory hammer driving double zee sheets
      • Installation of waler for tiebacks. Pros and cons of struts vs tie backs for bracing
      • Cross lot bracing. Typical installation of pipe struts and walers
      • Inclined rakers are used as bracing when cross lot bracing is infeasible
      • Constructing the foundation wall accommodating the rakers through the wall formwork
      • Dewatering - Deep well system. Ejector (eductor) system. Well point system
   3. Support of Excavation Advanced – Secant Pile Walls
      • Secant pile wall, including the primary hole and secondary hole
      • Starter wall and special drill rig to insure alignment
      • Impact of utilities
      • Video showing installation of starter holes
      • Video showing installation of secondary holes
      • Example of completed secant pile wall including struts and walers and tiebacks
      • Advantages of tiebacks vs. struts
      • Struts are preloaded with hydraulic jacks supported on end brackets
   4. Support of Excavation Advanced – Slurry Walls
      • Early use of slurry walls at World Trade Center
      • Definitions - Slurry wall – Diaphragm Wall
      • Video showing construction of slurry walls
      • Explanation of tremie method for placing concrete under water
      • Video showing the tremie method for placing concrete
      • Top down construction using slurry walls as permanent walls
      • Applications of slurry walls for deep excavations