Impact of coupling beams on shearing force of micro-pile group in Landslide

摘要

In recent years, micro-pile has been widely applied to landslide treatment engineering due to its advantages in application and construction, with quite evident engineering effect. Different geological experts have focused on sundry research direction on its resistance mechanism. Based on results from numerical simulation, shearing forces of micro-pile in landslide treatment engineering with and without coupling beams were analyzed, all of which are hoped to reveal the impact of coupling beams between the top of the piles on shearing force of micro-pile group in landslide. Results from contradistinction showed that coupling beam played greater role with shearing force to segment piles, comparing with less to the force near the sliding surface. Without coupling beams, shearing force of each pile from each row suffered quite different, comparing to that of small differences with beams. With no coupling beams, first damage points were located under top of the piles at about six times the pile diameter.