排土场边坡光伏支架基础力学性能对比研究

Comparative Study on Mechanical Property of Photovoltaic Support Foundation in Waste Dump Side Slope

边坡区域具有特殊的工程地质特性,当前对此类区域的光伏支架基础型式研究较少。文章针对单桩和双排单桩顺坡向连接这两种基础类型,研究了其在水平荷载作用下桩土的相互作用和桩身应力分布规律。结果表明:水平荷载作用下,单桩基础型式中桩周最大位移出现在桩身右侧坡体顶面处,桩身最大应力出现在桩底位置处;双桩基础型式中,1号桩桩周最大位移出现在桩身入土深度一半位置附近,且桩身应力分布较为均匀,2号桩桩周最大位移出现在桩身右侧坡体顶面处,桩身最大应力出现在桩底处。

Side slope area has special engineering geological characteristics.At present,there are few studies on the foundation type of photovoltaic support in such areas.In this paper,the interaction between pile and soil and the stress distribution of pile body under horizontal load are studied for two types of foundation of single pile and double-row single pile connected in the slope direction.The results show that under the horizontal load,the maximum displacement of the soil around the pile in the single pile foundation type appears at the top surface of the slope on the right side of the pile body,and the maximum stress of the pile body appears at the bottom of the pile;in the double-pile foundation type,the maximum displacement of the soil around No.1 pile appears near half of the depth of the pile body into the earth,and the stress distribution of the pile body is relatively uniform,the maximum displacement of the soil around No.2 pile appears at the top surface of the slope on the right side of the pile body,and the maximum stress of the pile body appears at the bottom of the pile.