Geotechnical Engineering Online Library

This paper presents a combined geotechnical and structural approach for the design of large diameter piles or drilled shafts to stabilize landslides with discrete deep-seated shear zones. This approach provides two major improvements over earlier design methodologies: i) the point of application of the slide force acting on the pile is modeled in a manner that, based on successful case histories, more realistically reflects the doformation pattern of deep-seated slide movement; and ii) the factors of safety for geotechnical and structural design are addressed iteratively to minimize compounding design conservatism between two disciplines.

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