LJB Underground Services (Aldea Services Inc)

LJB Underground Services (Aldea) provides expert technical resources for design and construction management, of heavy civil underground projects and risk management of all major infrastructure projects. We aim to provide innovative and cost effective practical solutions and designs based upon a clear understanding of our Client’s needs. LJB Underground (Aldea) provides Engineers and geologists with North American and International expertise in management and delivery for tunnel projects of all types, including planning, design and construction. The principals of Aldea are at the forefront of the underground construction industry. Whether the functional purpose is water, wastewater, cable conduit, gas pipeline, transit or highway; we have been planning, designing, and constructing tunnel projects for over 20 years. We are effective in working with any number of issues due to our experience on projects all over North America and various other global locations. Our experts have specialized expertise with bored and mined (drill & blast) tunneling (including large diameter TBM tunnels); New Austrian Tunneling Method (NATM) for soft ground and hard rock; trenchless technology (microtunneling, horizontal directional drilling, pilot tube microtunneling, & horizontal auger boring); trenchless rehabilitation; shaft design; support of excavation; tunnel rehabilitation, concrete and steel segment design ground improvement; geotechnical instrumentation and monitoring; foundation design; structural design; risk management and contract document preparation. Our risk management practice is the US industry leader. We have participated in key roles on some of the largest infrastructure programs in the nation, including the following just in the state of California: LA Metro, BART extension to San Jose, CA High Speed Rail, and the California Water Fix. Bob Goodfellow who heads our risk practice was a co-author of the US tunnel industry Guidelines for Improved Risk Management.