Geo-Congress 2020
Stabilization of a Large Landslide Impacting Highway 73 in the Missouri River Badlands
Publication: Geo-Congress 2020: Engineering, Monitoring, and Management of Geotechnical Infrastructure (GSP 316)
ABSTRACT
Along a portion of Highway 73 west of Lake Sakakawea in the Missouri River badlands of North Dakota, landslide activity had been observed for several years. This activity damaged the heavily traveled roadway, causing temporary closure or constraints on the maximum allowed speed. This large, deep-seated landslide includes high-plasticity clays with limited long-term shear strength and lignite seams carrying groundwater that also contributed to the slope failures. A stabilization design was developed to capture groundwater and route it away from the failure, and drilled shafts were installed as reinforcement to increase the factor of safety and limit long-term displacements. The paper addresses the field mapping, geotechnical investigations, laboratory testing, performance monitoring, design, and construction of the remedial measures.
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REFERENCES
Ameratunga, Jay, et al. 2016. Correlations of Soil and Rock Properties in Geotechnical Engineering. s.l. : Springer, 2016.
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Information & Authors
Information
Published In
Geo-Congress 2020: Engineering, Monitoring, and Management of Geotechnical Infrastructure (GSP 316)
Pages: 80 - 95
Editors: James P. Hambleton, Ph.D., Northwestern University, Roman Makhnenko, Ph.D., University of Illinois at Urbana-Champaign, and Aaron S. Budge, Ph.D., Minnesota State University, Mankato
ISBN (Online): 978-0-7844-8279-7
Copyright
© 2020 American Society of Civil Engineers.
History
Published online: Feb 21, 2020
ASCE Technical Topics:
- Analysis (by type)
- Engineering fundamentals
- Failure analysis
- Geohazards
- Geomechanics
- Geotechnical engineering
- Groundwater
- Highway and road management
- Highway transportation
- Highways and roads
- Infrastructure
- Landslides
- Material mechanics
- Material properties
- Materials engineering
- River bank stabilization
- River engineering
- Rivers and streams
- Shear strength
- Slopes
- Soil mechanics
- Soil properties
- Soil strength
- Strength of materials
- Transportation engineering
- Water (by type)
- Water and water resources
- Water management
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