Fremont Hall Dormitory Landslide Stabilization-PPT Presentation

PPT Presentation

Pdf Summary

The Fremont Hillside Stabilization project addressed a landslide that threatened the 1907 Dormitory Building at Fremont Hall. Grading in 1957 had removed the toe of an ancient landslide, and the slope reactivated during the 2017 storm season. A further reactivation in February 2019 led to a collaborative design-build request for proposals. The Schnabel, Yeh, and Cannon team was selected in December 2019.<br /><br />From December 2019 through July 2020, the team conducted subsurface exploration and geotechnical characterization, drawing on published geologic maps, historic photographs, drilling, inclinometers, and large-diameter borings. Construction took place from September 2021 to July 2022.<br /><br />Stabilization planning was guided by university-defined design criteria and addressed material properties, limited groundwater data, groundwater control using horizontal drains, anchor-gallery locations, construction sequencing, and temporary factors of safety. The work included a gallery and an anchored soldier-pile wall. Design changes were made during construction, with multiple peer reviews supporting the process.<br /><br />Instrumentation and monitoring were key project components. Anchors were instrumented, surface movement was monitored during construction, and a long-term monitoring program was established.

Keywords

Fremont Hillside Stabilization

landslide mitigation

geotechnical engineering

slope stabilization

Dormitory Building

subsurface exploration

horizontal drains

anchored soldier-pile wall

construction monitoring

long-term monitoring