Analysis on Mechanical Characteristics of h-Type Anti-Slide Piles and Cantilevered Double-Row Anti-Slide Piles
To explore a better anti-sliding structure between h-type anti-slide piles and cantilevered double-row anti-slide piles,the finite element software MIDAS/GTS was used and the three-dimensional finite ele-ment analysis models for h-type anti-slide piles and cantilevered double-row anti-slide piles were construc-ted.Then,the displacement,internal force of piles and slope support effect of the two anti-slide pile struc-tures were compared and analyzed.The results showed that:1)There were significant differences between the two types of anti-slide pile systems in terms of displacement and internal force of piles.Compared with cantilevered double-row anti-slide piles,h-type anti-slide piles were better to coordinate flexural moment and shear force of the front and rear piles,as well as displacement of piles.2)Compared with cantilevered double-row anti-slide piles,the support effect of h-type anti-slide piles was more significant.The safety fac-tor of slope stability increased by 21.8％,simultaneously,the maximum shear strain decreased by 63.6％.3)Compared with the cantilevered double-row anti-slide piles,the theoretical calculations on internal force of the front and rear piles in the h-type anti-slide pile systems were more reasonable.It also showed the ad-vantage of h-type anti-slide piles in coordination of the internal force.
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