EPB Soil Conditioning

Proper conditioning of soil during earth pressure balance (EPB) TBM tunneling is critical to providing proper face support, minimizing ground deformation, and enabling efficient production and sustainable use of excavated soil.

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Computational Back-Analysis

Computational models are powerful tools in the performance-based engineering analysis and design of underground construction. However, the key problem in using computational models is the paucity of reliable information on site geology, soil and rock properties and in situ stresses.

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Ground Vision

Ground Vision: Improving Site Characterization through Advances in Nondestructive Imaging - In this research, we are advancing the integration of nondestructive geophysical techniques with geotechnical exploration to better characterize ground conditions.

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Surface-Groundwater-Tunnel Inflow Modeling

Ground-water inflow into tunnels is a critical factor for tunnel excavation, support and long-term performance. Accurate prediction of expected flow zones and flow rates can dictate the success or failure of a project.

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Ground Deformation Behavior

Ground Deformation Behavior - This research aims to develop a better understanding of ground deformation behavior during urban tunneling through numerical analysis and learning from project data including TBM operating parameters and observed settlements.

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Advancing Cross Passage Design and Construction

Advancing cross passage design and construction through improved understanding of soil arching, soil-liner interaction and liner load distribution, and through advances in dewatering and ground improvement.

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Intelligent Underground

Intelligent Underground: Learning from Data - In this research, we are advancing methodologies that can learn from data collected within a project and use the findings to modify design and construction as the project proceeds.

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