Navigating Off-Course Written by: Robin Lorenzen We’ve all been there—the laser moved, the laser wasn’t set to the correct grade or alignment to properly launch, or ground conditions changed while tunneling. There are numerous circumstances that can occur where you find the machine is heading off course as a TBM operator. What do we do […]
Inuvik Airport Civil Infrastructure & Runway Extension Design Engineer: The Tunneling Company – Kamloops, BCLocation: Inuvik, NWT – CanadaGround Conditions: Permafrost zone. Included frozen clays with fine to coarse sand and trace gravels that were well bonded with 5-10% visible ice by volume.Type of Installation: TBM PipejackingMaterial: 60-in. OD Steel CasingFootage Installation: 320-LF crossingEquipment: Akkerman […]
Article from Utility Contractor® November/December 2023 Akkerman Inc., a leading manufacturer and supplier of trenchless construction equipment, is celebrating its 50th anniversary this year. The company, a proud NUCA member since 1993, is headquartered in Brownsdale, Minnesota, and has been providing innovative solutions for underground infrastructure projects since 1973. To mark its 50th anniversary, Akkerman […]
Mainline Segment & Railroad Crossing Design Engineer: J&J Boring, Inc.Location: Midland, TXGround Conditions: varying UCS caliche and limestone rockType of Installation: Tunnel Boring SystemMaterial: 48-in. OD Steel CasingFootage Installation: 550-lf. / 250-lf. (DCH used for 250)Equipment: Akkerman Tunnel Boring System with 5200 Pump Unit, 524 Haul Unit, TBM 48SCII, 50-in OD Disc Cutter Head, The […]
Written by Rob Krzys for Trenchless Technology® From humble beginnings in a two-car garage, to a state-of-theart manufacturing facility, Akkerman Inc. celebrates its 50th anniversary in 2023. The foundation of Akkerman came from a contractor’s background when Don (D.H.) and Marlys Akkerman established D.H. Akkerman Construction in 1956. With a focus on civil construction, D.H. […]
Written by Jordon Thomas-Harris for Trenchless Technology® How Microtunneling is helping Houston achieve project goals for deep gravity sewers The City of Houston (City), like many cities across the country, is working to improve resiliency and reduce operations and maintenance costs. One project to help accomplish this goal involves a large-scale facility consolidation on the […]
Highway SR-51 Trenchless Crossing Design Engineer: Horizontal Boring LLCLocation: Phoenix, AZGround Conditions: Breccia and phyllite/schist rock formations with UCS to 15,000-psiType of Installation: TBM Pipe JackingMaterial: 86-in OD x 1-in wall Steel CasingFootage Installation: 330-lfEquipment: Akkerman Pipe Jacking System, WM720-II TBM, 5200 Pump, 1548 Haul System, 2325BE Lube System, TBM Rock DCH Since no ground […]
Written by Bijan Khamanian for Trenchless Technology® Through a design-build alternative delivery method, San Diego County Water Authority undertook the rehabilitation of its First Aqueduct Treated Water Tunnels located in Escondido, California. The timely rehabilitation of the First Aqueduct is part of the Water Authority’s proactive asset management program. An essential element of providing safe […]
