摘要
针对高速公路穿越采空区路基沉降计算问题,采用Burgers蠕变本构模型开展数值分析计算不稳定采空区地基的沉降变形。在采空区通过注浆处治后,采用Burgers蠕变本构模型进行数值计算分析,并与现场监测结果进行对比,变形控制在允许范围内,结果表明:Burgers蠕变本构模型计算结果与现场监测结果基本一致,能较好地反映采空区地基和路基的变形特征,接近于工程实际。
Focusing on the calculation problems of subgrade settlement when the expressway passes the goaf,this paper used the Burgers creep constitutive model to conduct the numerical analysis to calculate the settlement and deformation of the unstable goaf foundation.After the grouting treatment to the goaf,comparing the calculation result to the field monitoring result,the deformation was in allowance.The results showed that the calculation result of the Burgers creep constitutive model was basically consistent with the field monitoring result,and it could well reflect the deformation characteristics of the goaf foundation and subgrade,which was close to the engineering practice.
作者
贾鹏云
JIA Pengyun(Fenshi Branch of Shanxi Transportation Holdings Group Co.,Ltd.,Lüliang,Shanxi 033000,China)
出处
《山西交通科技》
2023年第4期49-51,共3页
Shanxi Science & Technology of Transportation
