Effect of double-row anti-slide piles on thrust distribution
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Abstract:
At present, there is no clear design specification for the design of double-row anti-slide piles. In the design process, the thrust distribution between the front-row and back-row anti-slide piles is solely based on experiential judgement. To investigate the thrust share ratios basis between front-row and back-row piles, this paper establishes a series of finite element models to analyze the safety factor of slopes and the magnitude of landslide thrusts under various pile conditions. The findings show that the layout of piles has a significant impact on the slope’s safety. There exists an optimal pile spacing that maximizes the safety factor against landslides. Moreover, the proportion of thrust distribution between the front-row and back-row piles varies with different pile conditions. When the row spacing is set to 30 m, the thrust of the two rows of piles is the most balanced.
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Supported by the Science and Technology Project of Chongqing Geological Disaster Prevention Center (KJ2021050), and the Research Project of Chongqing Planning and Natural Resources Bureau (DK2021Z05null01C).
