摘要
为了分析露天矿山边坡抗滑桩的稳定性及加固措施,以红寨露天煤矿边坡滑坡体抗滑桩为例,探讨其在不同工况条件下的受力特征和稳定性。基于地质资料,按照滑坡体的结构特征、物质组成特征及地形地貌特征,利用数值模拟软件计算了不同工况条件下边坡抗滑桩的稳定性,分析其整体位移、应力分布及塑性区发展情况,并在最差工况条件下计算抗滑桩及连接板的配筋量。结果表明,抗滑桩整体位移主要沿x方向,最大拉应力出现在内侧抗滑桩顶部混凝土板处,抗滑桩嵌入岩体的位置均形成塑性区,且拉应力超过混凝土极限强度,需合理配置抗滑桩及连接板的配筋以提高稳定性。
In order to analyze the stability and reinforcement measures of anti-slide piles on open-pit mine slopes,this study takes the anti-slide piles of the slope landslide mass in Hongzhai Open-Pit Coal Mine as an example to discuss their force characteristics and stability under different working conditions.Based on geological data and in accordance with the structural characteristics,material composition,and topographic and geomorphic features of the landslide mass,numerical simulation software was used to calculate the stability of the slope anti-slide piles under different working conditions,analyze their overall displacement,stress distribution,and plastic zone development,and calculate the reinforcement quantity of the anti-slide piles and connecting plates under the worst working condition.The results show that the overall displacement of the anti-slide piles is mainly along the x-direction,and the maximum tensile stress occurs at the top concrete slab of the inner anti-slide piles.The positions where the anti-slide piles are embedded in the rock mass all form plastic zones,and the tensile stress exceeds the ultimate strength of concrete.It is necessary to rationally configure the reinforcement of the anti-slide piles and connecting plates to improve stability.
作者
张东鹏
ZHANG Dongpeng(China Railway 19th Bureau Group Mining Investment Co.,Ltd.,Beijing 100161,China)
出处
《资源信息与工程》
2025年第5期84-89,93,共7页
Resource Information and Engineering
关键词
边坡稳定性
抗滑桩
滑坡变形
数值模拟
配筋计算
slope stability
anti-slide pile
landslide deformation
numerical simulation
reinforcement calculation
