Abstract
This paper reports a subgrade reaction solution for piles used to stabilise landslides where the sliding layer laterally moves with a displacement decreasing linearly with depth. The developed subgrade reaction solution can deal with the case in which pile segments in both sliding and stable layers are not flexible, and can also calculate the pile response under the additional resistance required to stabilise the landslide. Transforming coordinate systems, the conventional solution can be obtained from the developed subgrade reaction solution for the case in which the movement of the sliding layer is uniform with depth. Two case studies indicate that the pile response, especially the maximum bending moment, calculated by using the developed subgrade reaction solution, was consistent with the measurements. The movement gradient of the sliding layer had a significant influence on the response of stabilising piles, and it usually increased the maximum bending moment of the pile segment in the stable layer. Stabilising piles would be potentially unsafe if such influence were not considered in design. Using the developed subgrade reaction solution, dimensionless design charts were created for the case in which the pile segment in the sliding layer is not flexible.
Subject
Earth and Planetary Sciences (miscellaneous),Geotechnical Engineering and Engineering Geology
Cited by
19 articles.
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