This paper discusses the application of micropiles on slopes along constructions and
castle walls in historical site maintenance. Using the PLAXIS finite element method to
perform simulations. The attainable results include that underpinning and
strengthening with inverted L-shaped micropiles in coordination with low-pressure
grouting reinforcement can increase the safety factor of slopes along the castle wall of
historical sites, improve the foundations of the castle walls to substantially reduce the
total amount of displacement, significantly inhibit the settlement, and alleviate the
subsidence trend of the foundation structure of castle walls. Likewise, gantry-style
micropile reinforcement methods can enhance the safety factor, reduce the total
amount of displacement, as well as inhibit and alleviate the soil settlement. In
summary, micropiles can indeed be used to provide useful stability to the foundation
and inhibit the displacement in order to strengthen the slope state along the castle
walls of historical sites, where the working space is relatively narrow. It is anticipated
that the analytical results of this paper can be used as a reference for similar projects.
Subjects: micropiles, PLAXIS numerical analysis, application efficiencies, slope
stability.
Author: Ching-Jiang Jeng, Chih-Chang Lin
Publisher: ISM, DFI, ADSC