Analysis of Factors Affecting the Horizontal Bearing Characteristics of Anti-Slide Piles under Complex Geological Conditions
Anti-slide piles are an effective slope protection engineering measure often used to control landslides.Their horizontal bearing capacity is the key to evaluating the slope reinforcement effect.In order to study the horizontal load-bearing characteristics of anti-slide piles under complex geological conditions,this paper takes the landslide protection project of Kara Hydropower Station in Shangtian Town as an example and adopts a combination of field tests and numerical simulations to study the horizontal load-bearing characteristics of slope anti-slide piles.based on the on-site single pile horizontal load test of anti-slide piles,the accuracy of the numerical calculation model is verified,on this basis,the factors affecting the horizontal bearing capacity of the anti-slide piles are analyzed.The results show that the horizontal bearing capacity of the front and rear rows of piles is uneven.Under the same horizontal bearing capacity,the maxi-mum bending moment at the top of the rear row of piles is greater than the maximum bending moment at the top of the front row of piles.Different arrangement of piles has significant influence on the horizontal bearing characteristics of the pile group,among which the top bending moment of the double-row staggered arrangement piles is the smallest,followed by the single-row staggered arrangement,and the top bending moment of double-row horizontal piles is the largest;under the same horizontal load,compared with 1.2 m and 1.3 m pile spacing,the group piles effect of pile spacing of 1.4 m is significant;the depth of pile penetration into the rock has little effect on the horizontal bearing capacity of the pile group,and there is only a significant difference at the soil-rock mass layering interface.
万方数据
维普
