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Center for Underground Construction and Tunneling

|http://underground.mines.edu

February 2019

Underground Lunch and Learn: Overview of Trenchless Techniques and the Engineering Judgement Required to use Empirical Estimating Methods for Pipe Jacking Forces

February 13 @ 12:00 pm - 1:00 pm
Berthoud Hall, 1516 Illinois St.
Golden, CO 80401 United States
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Free, Lunch Provided

Overview of Trenchless Techniques and the Engineering Judgement Required to use Empirical Estimating Methods for Pipe Jacking Forces An overview of trenchless techniques including pipe ramming, auger boring, pilot tube guidance, pipe jacking, hand mining, mechanical excavation, TBMs, MTBMs, and HDD. Estimating jacking force parameters often involves empirical methods that are correlated to ground conditions by coefficients derived from case histories. A recent MTBM project in Denver, Colorado with twin 96-in. MTBM storm drains under a rail yard illustrates this point. There…

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Underground Lunch and Learn: Designing Underground Excavations at the Long Baseline Neutrino Facility

February 20 @ 12:00 pm - 1:00 pm
Berthoud Hall, 1516 Illinois St.
Golden, CO 80401 United States
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Free, Lunch Provided

Jon Hurt, PE, CEng MICE, is the leader of Arup’s Tunnel Practice in the Americas, and the global leader for the Tunnel Skills Network, responsible for providing resources, training and knowledge sharing within Arup’s tunneling community. He is a project manager and tunnel engineer with a wide range of experience in the management, design and construction of major tunneling projects. Jon is currently the Project Manager for the Department of Energy’s Long Baseline Neutrino Facility Far Site project. His experience…

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March 2019

Underground Lunch and Learn: Planning and Design of the New Ashbridges Bay Treatment Plant Outfall for the City of Toronto

March 6 @ 12:00 pm - 1:00 pm
Berthoud Hall, 1516 Illinois St.
Golden, CO 80401 United States
+ Google Map
Free, Lunch Provided

Planning and Design of the New Ashbridges Bay Treatment Plant Outfall for the City of Toronto The Ashbridges Bay Treatment Plant (ABTP) Outfall project by the City of Toronto involves construction of a new tunneled outfall that will convey treated effluent (water) from the ABTP into Lake Ontario. This new outfall will be built to allow cessation of operations of the existing outfall which is reaching the end of its service life and has limited hydraulic capacity. This presentation is…

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Underground Lunch and Learn: Central 70 Project Overview – Lowered Section Groundwater Analysis

March 13 @ 12:00 pm - 1:00 pm
Berthoud Hall, 1516 Illinois St.
Golden, CO 80401 United States
+ Google Map
Free, Lunch Provided

The Central 70 Project will widen Interstate 70 (I-70) from six to 10 lanes by adding two lanes in each direction between Interstate 25 and Tower Road (about 11 mi.); remove the existing viaduct between Brighton Blvd. and Colorado Blvd. and rebuild I-70 along this segment 40 ft. below grade on the existing alignment; and place a 4-acre cover on the highway between Columbine St. and Clayton St. next to Swansea Elementary School. This design will be constructed with a…

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April 2019

Underground Lunch and Learn: Variable Density TBMs and the Related Considerations

April 3 @ 12:00 pm - 1:00 pm
Berthoud Hall, 1516 Illinois St.
Golden, CO 80401 United States
+ Google Map
Free, Lunch Provided

Variable Density TBMs and the Related Considerations Variable Density TBMs are used in more and more projects around the world. As they offer unique capabilities for face support, tunneling in extremely difficult ground conditions becomes safer. The lecture discussed the different mechanics of face support and the technical means to realize them. A number of international projects are introduced as well as the different TBM concepts which have been deployed.

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Underground Lunch & Learn: Variable Density TBMs and the Related Considerations

April 3 @ 12:00 pm - 1:00 pm
Berthoud Hall, 1516 Illinois St.
Golden, CO 80401 United States
+ Google Map
Free, Lunch Provided

Variable Density TBMs are used in more and more projects around the world. As they offer unique capabilities for face support, tunneling in extremely difficult ground conditions becomes safer. The lecture discusses the different mechanics of face support and the technical means to realize them. A number of international projects are introduced as well as the different TBM concepts which have been deployed. Presenter - Dr.-Ing Ruben Duhme, General Manager at Herrenknecht Asia. He is responsible for Herrenknecht´s engineering and…

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Underground Lunch and Learn: Central 70 Project Overview – Lowered Section Groundwater Analysis

April 10 @ 12:00 pm - 1:00 pm
Berthoud Hall, 1516 Illinois St.
Golden, CO 80401 United States
+ Google Map
Free, Lunch Provided.

The Central 70 Project will widen Interstate 70 (I-70) from six to 10 lanes by adding two lanes in each direction between Interstate 25 and Tower Road (about 11 mi.); remove the existing viaduct between Brighton Blvd. and Colorado Blvd. and rebuild I-70 along this segment 40 ft. below grade on the existing alignment; and place a 4-acre cover on the highway between Columbine St. and Clayton St. next to Swansea Elementary School. This design will be constructed with a…

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Underground Lunch & Learn Seminar: DMM Stabilization of New Orleans Levees

April 24 @ 12:00 pm - 1:00 pm
Berthoud Hall, 1516 Illinois St.
Golden, CO 80401 United States
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Free. Lunch Provided.

DMM Stabilization of New Orleans Levees The performance of embankments constructed on soft ground is often improved by flattening the side slopes, using lightweight fill, or improving the foundations. Flood protection levees are particularly challenging, as these embankments must have sufficient weight to withstand the lateral forces of impounded water, and their proximity to existing roadways and structures in developed areas restricts the potential for flattening the slopes. In addition, they are often constructed on soft alluvial or coastal deposits…

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