This picture gallery shows a failed berm adjacent to a busy roadway and step-by-step reconstruction of the berm. D'Appolonia evaluated the failure, determined the cause, prepared a remedial design and performed field monitoring of the reconstruction.
Photograph 1
Sidewalk and roadway disrupted by a landslide above a walking trail and stream on a steep hillside in a city park.
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Photograph 2
Closeup view of displacement of concrete sidewalk over landslide scarp.
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Photograph 3
Slide area following removal of sidewalk portion of roadway and slide mass and subsequent placement of geotextile fabric in preparation for reinforced soil slope (RSS) construction.
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Photograph 4
Overexcavation of colluvial soils for construction of RSS foundation aggregate key extending to bedrock.
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Photograph 5
Completed key excavation in area of deeper colluvium.
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Photograph 6
Key trench being backfilled with AASHTO No. 1 coarse aggregate.
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Photograph 7
Placement of geogrid and aggregate fill for initial lift of RSS construction.
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Photograph 8
Installation of underdrain along heel of RSS embankment.
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Photograph 9
Placement of RSS aggregate and intial level of galvanized welded-wire mesh (WWM) facing panels.
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Photograph 10
Installation of geotextile and organic soil in facing units to provide medium for vegetative growth on finished RSS face.
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Photograph 11
Continuing installation of geogrid reinforcement, aggregate fill, and soil-filled facing units.
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Photograph 12
Continuing installation of geogrid reinforcement, aggregate fill, and soil-filled facing units.
Photograph 13
Completed aggregate placement for second lift of RSS construction viewed from top.
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Photograph 14
Completed aggregate placement for second lift of RSS construction viewed from side.
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