Method for calculating sliding resistance of anchored piles

Abstract

The invention discloses a method for calculating the sliding resistance of anchored piles. The method not only can be used for design calculation of a single row of anchored piles to obtain the smallest sliding resistance and the optimal pipe arrangement positions, but also can be used for optimization design calculation of multiple (double) rows of piles. An engineering project comparison result shows that the array matrix method is more scientific compared with a traditional method. When the array matrix method is combined with the finite element method to be applied to major landslide control engineering, a calculation result is more reliable and reasonable.

Description

technical field [0001] The invention relates to the field of anti-sliding resistance of anchor piles, in particular to a calculation method suitable for anti-sliding resistance of anchor piles. Background technique [0002] Slope is the most common geological environment in human engineering activities, and landslide disaster is one of the main forms of geological disasters. There are many prevention and control measures for landslide disasters, and anchor piles are widely used in landslide control because of their strong anti-slide ability, flexible pile design, and safe and convenient construction. In the landslide prevention and control engineering design of anchor piles, the landslide thrust borne by anchor piles is the key to the design of engineering piles. Aiming at this problem, many scientific and technological workers have carried out some researches and obtained some results. At present, there are mainly two theoretical calculation methods for the calculation of...

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Problems solved by technology

One method is to design according to the cantilever pile, and the design residual sliding force corresponding to the location of the anchor pile (attached figure 1 Curve B in the magnitude ) is considered as the anti-sliding resistance without considering the resistance of the soil in front of the pile. This scheme is relatively safe and suitable for the design of cantilever piles. However, for buried piles, the anti-sliding resistance calculated by this scheme is too large, causing engineering waste; the second method is to convert the residual sliding force curve (attached figure 1 ) in the difference between curve B and curve A ( ) as the anti-sliding resistance, although this scheme considers the resistance of the soil in front of the pile, it also has its own defects (will be analyzed later), and it cannot be used for the design calculation of double or multi-row anchor piles

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