Design And Calculation Towards Strengthening Large-Scale Bedding Landslide By Embedded Double-Row Anti-Slide Piles

With the increasing projects, large-scale bedding landslide appears now and then. When the push created by landslide is too strong, single-row anti-slide piles do not meet the satisfaction any more. Though double-row piles have frequently been applied to bedding landslide, its function has yet not been known and relevant systematic research towards such problems as distribution in different rows of landslide push, mutual influence in different rows of landslide are lacked and mature design and calculation methods are lacked in projects. This thesis adopts methods that combine model test and numerical calculation with theoretical analysis to study double row anti-slide piles strengthening bedding landslide.(1) Site survey on bedding landslide, summarize and analyze main factors that influence bedding slide slope stability, classify bedding slide slopes according to their angles, formationlithology and their combining methods, and analyze destructive stereotype of large consequent landslide separately.(2) We do research on double row bedding landslide by adopting inner large model test, and through the space between piles, we can conclude that back anti-slide piles take the shape of para-curve-triangle due to the push from the back slope, front anti-slide piles usually take the shape of triangle-trapezoid due to the push from the front slope, and the resisting force between front and back piles takes the shape of triangle-trapezoid. The push from front and back pile slopes decreases as the space between piles increases.(3) By numerical calculation and comparatively analysis towards model test, we can conclude that when the space between piles is less that 5H, front and back piles can get good force effects and we can also calculate the percentage of front and back slopes separately when the space between piles is between 1H and 10H. We can also put forward that the rigidity of front piles should advance the rigidity of back piles, and when the percentage between front and back piles is less than (?), decreasing the rigidity of back piles is better for improving the distribution effects of high slope push. Meanwhile, front piles should be constructed in advance if possible in constructing double row piles...