摘要
通过FLAC3D数值模拟分析车辆荷载因素以及路面本身质量因素,对采空区上方公路路基的影响。模拟路基、车辆荷载、采空区自身沉降对采空区活化变形影响程度,总结采空区上方高速公路路基稳定性关键因素和治理方法。通过计算模拟分析发现,车辆荷载对采空区路基的影响很大,同时车辆荷载扰动能够使采空区活化变形。在采空区上方修建公路或者铁路应做好路基加固措施,尽量避免经过采空区中心变形敏感区域。
Through FLAC3D numerical simulation,the influence of vehicle load factors and the quality of the road surface on the roadbed above the goaf is analyzed.The influence of subgrade,vehicle load and subsidence of the goaf itself on the activation deformation of the goaf was simulated,and the key factors and treatment methods of subgrade stability of expressway above the goaf were summarized.Through the calculation and simulation analysis,it was found that the vehicle load had a great influence on the subgrade above goaf,and the vehicle load disturbance could activate the goaf deformation.To build roads or railways above the goaf,roadbed reinforcement measures should be taken,and try to avoid passing through the deformation sensitive area in the center of the goaf.
作者
袁曼飞
刘钰
Yuan Manfei;Liu Yu(Shaanxi Railway Institute,Weinan 714099,China;The Second Topographic Surveying Brigade of National Administration of Surveying,Mapping and Geoinformation,Xi an 710054,China)
出处
《粘接》
CAS
2021年第4期111-114,共4页
Adhesion
基金
陕西铁路工程职业技术学院自科学基金(KY2019-14)。
