Geotechnical and Trenchless Engineering     




Installing a bundle of 28 fiber optic conduits under the Guadalupe River in Santa Clara, California. This installation was completed using a maxi-sized horizontal directional drill rig with a wireline locating system.


© 2012 DCM Consulting.

Experience



Dave has developed a strong record of successful experience in:

  • Shallow and Deep Building Foundations
    -  footings
    -  mats
    -  P/T slabs
    -  drilled piers
    -  driven piles
  • Construction Excavation and Shoring, both Braced and Tied Back
  • Construction Dewatering
  • Permanent Dewatering
  • Corrosion
  • Ground Treatment/Improvement Processes
    -  dynamic compaction
    -  stone columns
    -  jet grouting
    -  soil mixing
    -  compaction grouting
    -  lime treatment
  • Buried Pipelines
    -  open-cut excavations, shoring and dewatering
    -  rigid and flexible pipe bedding
    -  flexible pipe design using EŽc
    -  pipe loading, both dead and live loads
    -  trench backfill
    -  fines migration
  • Trenchless Technologies
    -  microtunnel pipe jacking (MTBM)
    -  earth pressure balance machine tunneling (EPBM)
    -  shield tunneling (TBM)
    -  horizontal directional drilling
    -  auger bore and jack
    -  pilot tube guided boring
    -  guided boring
    -  pipe bursting
    -  pipe reaming
    -  slip lining
    -  cured-in-place pipe
Dave's emphasis over the past twenty years has been in the area of pipeline rehabilitation and new construction using trenchless technologies. Trenchless experience has included projects in pipe bursting, pipe reaming, slip-lining, cured-in-place pipe, horizontal directional drilling and various forms of pipe jacking including microtunneling, earth pressure balance machine, tunnel boring machine and open shield tunneling as well as pilot tube guided boring, guided boring and auger boring and pipe ramming. To date, Dave has completed geotechnical engineering design investigations for over 75,000 linear feet of microtunneling, over 10,000 linear feet of horizontal directional drilling and over 30,000 linear feet of pipe bursting.

In 1998, Dave was recognized as part of the design and construction team that received Trenchless Technology Magazine's New Construction Project of the Year Award for Central Contra Costa Sanitary District's South Orinda Sewer Improvement Project (a microtunneling project involving the installation of 8,250 linear feet of 36-inch diameter sanitary sewer).

In 2006, Dave received the North American Society for Trenchless Technology Industry Achievement Award for 15 years of contribution to the trenchless technology industry. Dave's predecessor firm, DCM Engineering, was one of only four firms in the small consulting business category selected for this recognition from the United States and Canada.

In 2008, Dave received the North American Society for Trenchless Technology Outstanding Paper Award in the new construction category for a 2007 No-Dig paper, "Microtunneling Beneath the Napa River" which was presented in San Diego, California.