摘要
根据地形图建立尾矿坝模型,在三维渗流分析的基础上,确定浸润线,建立合理的材料分区。利用ABAQUS软件建立等效线性粘弹性模型,进行地震响应分析,重点分析坝体的反应加速度、动位移、动剪应力、动剪应变和残余变形等动力反应情况。根据残余变形情况,确定尾矿坝的永久变形。结果表明:坝体在地震作用下的响应不强烈,坝体的永久变形不是很大,震陷率满足设计要求。
According to the topographic map,a reasonable model of tailing dam was established,on the basis of three dimensional seepage analysis,the saturation line was determined,a reasonable material partition was also established. Equivalent linear viscoelastic model was established by using ABAQUS software,the seismic response analysis was also carried out,focusing on the analysis of dynamic response,such as dam response acceleration,dynamic displacement,dynamic shear stress,shear strain,and residual deformation,and so on. According to residual deformation condition,the permanent deformation of tailing dam was determined. Results show that,the response of the dam caused by earthquake is not strong,and the deformation is not very big,settlement rate can meet the requirements of the design.
出处
《中州煤炭》
2016年第5期83-87,共5页
Zhongzhou Coal
