Location

Chicago, Illinois

Session Start Date

4-29-2013

Session End Date

5-4-2013

Abstract

In practice is for various reasons very difficult to assume a real sliding failure on the slip surface, which can be created from more parts (straight and curved) with different local soil characteristics. Therefore is usually at classical methods of slope stability shear surface replaced, for example by a cylindrical surface for cohesive soils. An important factor affecting stability is also the effect of groundwater. In practice is just the influence of groundwater very often reason of landslides on natural slopes and cut slopes. Such landslide has happened in the case of construction the retaining wall on the highway D1 in Slovakia. Cut slope above the built retaining wall has failed approximately on area 4500 m2 with a few breaches, where the maximum height of segregation was about 2.5 m. Supporting pier of high voltage has failed during the landslide and also trussed pole of high voltage with cables over the highway was threating. Before the landslide remediation works has started some inclinometers were built which helped to determine assumed sliding surface and observe the further development of the landslide during its remediation. Final recovery works consisted of the reduction of slope angle and drainage slope by sub−horizontal drill holes and drainage ribs.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conference on Case Histories in Geotechnical Engineering

Meeting Name

Seventh Conference

Publisher

Missouri University of Science and Technology

Publication Date

4-29-2013

Document Version

Final Version

Rights

© 2013 Missouri University of Science and Technology, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Apr 29th, 12:00 AM May 4th, 12:00 AM

Remediation of a Slope Failure Above Retaining Wall Under Construction

Chicago, Illinois

In practice is for various reasons very difficult to assume a real sliding failure on the slip surface, which can be created from more parts (straight and curved) with different local soil characteristics. Therefore is usually at classical methods of slope stability shear surface replaced, for example by a cylindrical surface for cohesive soils. An important factor affecting stability is also the effect of groundwater. In practice is just the influence of groundwater very often reason of landslides on natural slopes and cut slopes. Such landslide has happened in the case of construction the retaining wall on the highway D1 in Slovakia. Cut slope above the built retaining wall has failed approximately on area 4500 m2 with a few breaches, where the maximum height of segregation was about 2.5 m. Supporting pier of high voltage has failed during the landslide and also trussed pole of high voltage with cables over the highway was threating. Before the landslide remediation works has started some inclinometers were built which helped to determine assumed sliding surface and observe the further development of the landslide during its remediation. Final recovery works consisted of the reduction of slope angle and drainage slope by sub−horizontal drill holes and drainage ribs.