OPTIMAL REINFORCEMENT POSITION OF ANTI-SLIDE PILES BASED ON STRESS LEVEL OF SLIDING ZONE

Anti-slide pile is one of the common engineering measures in landslide treatment. In order to improve the reinforcement effect and optimize the location of anti-slide piles, we take a typical reservoir bank landslide as an example, analyze the stress level of the landslide, and put forward a method for determining the location of the anti-slide pile reinforcement. The method is based on the stress level distribution characteristics of the sliding zone. The research results show that:(1)The distribution of high stress level area in landslide body is in good agreement with that of large displacement area and plastic zone. According to the distribution law of stress level, the failure type of landslide can be determined more accurately. (2)When the anti-slide pile is arranged in the area with high stress level in the sliding zone, it can effectively improve the plastic zone in the slope, improve the safety factor of the landslide, and achieve better reinforcement effect. (3)Compared with the existing method of determining the optimal reinforcement position of anti-slide pile based on deformation field distribution and plastic zone distribution, the proposed method based on the distribution characteristics of the stress level of sliding zone can accurately and quantitatively determine the optimal reinforcement position of the landslide, so as to give full play to anti-slide pile reinforcement. We hope that the relevant analysis methods and research results can provide a good reference for the optimization of the anti-slide pile reinforcement position.