摘要
为分析高速公路拓宽路基沉降规律,分别采用P1AXIS软件模拟计算和现场监测两种方法进行研究。模拟分析与现场监测确定的路基最大沉降量位置相同,均为距路基中心19 m左右,且沉降量满足设计要求。沉降随路基填筑高度的增加而增加,随监测时间的增加路基沉降速率明显下降,在监测135 d后逐步达到了稳定状态。路基现场监测最大沉降量与模拟计算结果接近,说明计算结果准确,可用于指导施工。
The subsidence law of the widened expressway subgrade is analyzed by the simulation calculation of the P1AXIS software and field monitoring respectively.The position of the maximum subsidence of the subgrade determined by simulation analysis and field monitoring is the same,which is about 19 m from the center of the subgrade,and the subsidence meets the design requirements.The subsidence increases with the filling height of the subgrade.The subgrade subsidence rate decreases significantly with the increasing monitoring time and gradually reaches a stable state after monitoring for 135 days.The maximum subgrade subsidence by the field monitoring is close to the simulation result,indicating the calculation result is accurate and can be used to guide the construction.
作者
贾冬梅
JIA Dong-mei(The Sixth Engineering Co.,Ltd.of Shanxi Road&Bridge Construction Group,Jinzhong,Shanxi 030600,China)
出处
《山西交通科技》
2023年第1期44-46,共3页
Shanxi Science & Technology of Transportation
关键词
高速公路
改扩建工程
有限元
沉降规律
expressway
reconstruction and expansion engineering
finite element
subsidence law
