Numerical Modeling of Initial Ground Movement in an Instrumented Superconducting Super Collider Shaft

by David B. Spires, PB/MK Team, Dallas, United States,
Fei Duan, PB/MK Team, Dallas, United States,
Marek Mrugala, PB/MK Team, Dallas, United States,



Document Type: Proceeding Paper

Part of: Computing in Civil Engineering

Abstract: A 5.5 m diameter shaft was sunk into a rock formation of Taylor Marl to a depth of 61 m at the Superconducting Super collider (SSC) site. Numerical modeling using finite difference analysis was one method used to predict initial deformation and liner stresses. A geotechnical instrumentation system was installed surrounding the shaft in advance of excavation to monitor the response of the marl to excavation. The field measurements were compared to numerical predictions, and subsequent material properties were calibrated to more closely match reality.

Subject Headings: Numerical models | Shafts | Stress analysis | Material properties | Numerical analysis | Finite difference method | Excavation

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